Blazor Tree Grid 列選択の概要

Blazor Tree Grid の Ignite UI for Blazor 列選択機能は、シングルクリックで列全体を選択してハイライト表示する、簡略化された Excel のような方法を提供します。これは columnSelection 入力を通じて有効にできます。豊富な API のおかげで、この機能により、選択状態の操作、選択された部分からのデータ抽出、データ分析操作、視覚化が簡単に行えます。

すぐに使用できる機能のフルセット は、ページング、ソート、フィルタリング、編集、グループ化から行と列の仮想化まで、あらゆる機能をカバーします。.NET 開発者には制限はありません。

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Blazor Tree Grid 列選択の例

以下のサンプルは、IgbTreeGrid の 3 種類の列選択動作を示しています。以下の列選択ドロップダウンを使用して、利用可能な各選択モードを有効にします。

*Unit Price および Discontinued の列選択が無効になっています。

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class FoodsDataItem
{
    public double ID { get; set; }
    public double ParentID { get; set; }
    public string Name { get; set; }
    public double UnitPrice { get; set; }
    public string AddedDate { get; set; }
    public bool Discontinued { get; set; }
}

public class FoodsData
    : List<FoodsDataItem>
{
    public FoodsData()
    {
        this.Add(new FoodsDataItem()
        {
            ID = 1,
            ParentID = -1,
            Name = @"Foods",
            UnitPrice = 0,
            AddedDate = @"2009-06-19",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 101,
            ParentID = 1,
            Name = @"Chef Antons Gumbo Mix",
            UnitPrice = 21.35,
            AddedDate = @"2011-11-11",
            Discontinued = true
        });
        this.Add(new FoodsDataItem()
        {
            ID = 102,
            ParentID = 1,
            Name = @"Grandmas Boysenberry Spread",
            UnitPrice = 25,
            AddedDate = @"2017-12-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 103,
            ParentID = 1,
            Name = @"Uncle Bobs Organic Dried Pears",
            UnitPrice = 30,
            AddedDate = @"2016-07-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 104,
            ParentID = 1,
            Name = @"Mishi Kobe Niku",
            UnitPrice = 97,
            AddedDate = @"2010-02-17",
            Discontinued = true
        });
        this.Add(new FoodsDataItem()
        {
            ID = 105,
            ParentID = 1,
            Name = @"Queso Cabrales",
            UnitPrice = 21,
            AddedDate = @"2009-11-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 106,
            ParentID = 1,
            Name = @"Queso Manchego La Pastora",
            UnitPrice = 38,
            AddedDate = @"2015-11-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 107,
            ParentID = 1,
            Name = @"Konbu",
            UnitPrice = 6,
            AddedDate = @"2025-03-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 108,
            ParentID = 1,
            Name = @"Tofu",
            UnitPrice = 23.25,
            AddedDate = @"2019-06-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 109,
            ParentID = 1,
            Name = @"Ikura",
            UnitPrice = 31,
            AddedDate = @"2010-05-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 110,
            ParentID = 1,
            Name = @"Pavlova",
            UnitPrice = 17.45,
            AddedDate = @"2018-03-28",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 111,
            ParentID = 1,
            Name = @"Alice Mutton",
            UnitPrice = 39,
            AddedDate = @"2015-08-17",
            Discontinued = true
        });
        this.Add(new FoodsDataItem()
        {
            ID = 112,
            ParentID = 1,
            Name = @"Carnarvon Tigers",
            UnitPrice = 62.5,
            AddedDate = @"2015-09-27",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 113,
            ParentID = 1,
            Name = @"Teatime Chocolate Biscuits",
            UnitPrice = 9.2,
            AddedDate = @"2011-03-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 2,
            ParentID = -1,
            Name = @"Beverages",
            UnitPrice = 0,
            AddedDate = @"2009-06-19",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 201,
            ParentID = 2,
            Name = @"Chai",
            UnitPrice = 18,
            AddedDate = @"2012-02-12",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 202,
            ParentID = 2,
            Name = @"Chang",
            UnitPrice = 19,
            AddedDate = @"2013-03-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 3,
            ParentID = -1,
            Name = @"Sauces",
            UnitPrice = 0,
            AddedDate = @"2009-06-19",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 301,
            ParentID = 3,
            Name = @"Aniseed Syrup",
            UnitPrice = 10,
            AddedDate = @"2016-03-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 302,
            ParentID = 3,
            Name = @"Chef Antons Cajun Seasoning",
            UnitPrice = 22,
            AddedDate = @"2012-03-17",
            Discontinued = true
        });
        this.Add(new FoodsDataItem()
        {
            ID = 303,
            ParentID = 3,
            Name = @"Northwoods Cranberry Sauce",
            UnitPrice = 40,
            AddedDate = @"2012-01-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 304,
            ParentID = 3,
            Name = @"Genen Shouyu",
            UnitPrice = 15.5,
            AddedDate = @"2010-03-17",
            Discontinued = false
        });
        this.Add(new FoodsDataItem()
        {
            ID = 305,
            ParentID = 3,
            Name = @"Sir Rodneys Marmalade",
            UnitPrice = 18,
            AddedDate = @"2015-03-17",
            Discontinued = false
        });
    }
}csコピー

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbInputModule),
                typeof(IgbPropertyEditorPanelModule),
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<div class="container vertical ig-typography">
    <div class="options vertical">
        <IgbPropertyEditorPanel
        Name="PropertyEditor"
        @ref="propertyEditor"

        DescriptionType="WebTreeGrid"
        IsHorizontal="true"
        IsWrappingEnabled="true">
            <IgbPropertyEditorPropertyDescription
            PropertyPath="ColumnSelection"
            Name="columnSelectionEditor"
            @ref="columnSelectionEditor"
            Label="Column Selection">
            </IgbPropertyEditorPropertyDescription>

        </IgbPropertyEditorPanel>

    </div>
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="FoodsData"
        PrimaryKey="ID"
        ForeignKey="ParentID">
            <IgbColumn
            Field="ID">
            </IgbColumn>

            <IgbColumn
            Field="Name">
            </IgbColumn>

            <IgbColumn
            Field="UnitPrice"
            Header="Unit Price"
            Selectable="false">
            </IgbColumn>

            <IgbColumn
            Field="AddedDate"
            Header="Added Date">
            </IgbColumn>

            <IgbColumn
            Field="Discontinued"
            Selectable="false">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    private Action BindElements { get; set; }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var propertyEditor = this.propertyEditor;
        var columnSelectionEditor = this.columnSelectionEditor;
        var treeGrid = this.treeGrid;

        this.BindElements = () => {
            propertyEditor.Target = this.treeGrid;
        };
        this.BindElements();

    }

    private IgbPropertyEditorPanel propertyEditor;
    private IgbPropertyEditorPropertyDescription columnSelectionEditor;
    private IgbTreeGrid treeGrid;

    private FoodsData _foodsData = null;
    public FoodsData FoodsData
    {
        get
        {
            if (_foodsData == null)
            {
                _foodsData = new FoodsData();
            }
            return _foodsData;
        }
    }

}razorコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/
cssコピー

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基本的な使用方法

列選択機能は、GridSelectionMode 値を受け取る ColumnSelection 入力によって有効にすることができます。

インタラクション

デフォルトの選択モードは None です。Single または Multiple に設定されると、すべての列は Selectable になります。列を選択するには、列をクリックして Selected としてマークします。列が選択不可な場合、ホバー時に選択スタイルはヘッダーに適用されません。

複数列ヘッダー機能は Selectable 入力に反映されません。その子の 1 つ以上で選択動作が有効な場合、ColumnGroupComponent は Selectable です。さらに、すべての Selectable 子孫が Selected である場合、コンポーネントは Selected としてマークされます。

*Personal Details 列グループでは、列 ID と Title のみを選択できます。

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class EmployeesFlatDetailsItem
{
    public string Address { get; set; }
    public double Age { get; set; }
    public string City { get; set; }
    public string Country { get; set; }
    public string Fax { get; set; }
    public string HireDate { get; set; }
    public double ID { get; set; }
    public string Name { get; set; }
    public double ParentID { get; set; }
    public string Phone { get; set; }
    public double PostalCode { get; set; }
    public string Title { get; set; }
    public string LastName { get; set; }
    public string FullAddress { get; set; }
}

public class EmployeesFlatDetails
    : List<EmployeesFlatDetailsItem>
{
    public EmployeesFlatDetails()
    {
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Obere Str. 57",
            Age = 55,
            City = @"Berlin",
            Country = @"Germany",
            Fax = @"030-0076545",
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            ParentID = -1,
            Phone = @"030-0074321",
            PostalCode = 12209,
            Title = @"Development Manager",
            LastName = @"Winchester",
            FullAddress = @"Obere Str. 57, Berlin, Germany"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Avda. de la Constitución 2222",
            Age = 42,
            City = @"México D.F.",
            Country = @"Mexico",
            Fax = @"(51) 555-3745",
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            ParentID = -1,
            Phone = @"(5) 555-4729",
            PostalCode = 5021,
            Title = @"CEO",
            LastName = @"Sanders",
            FullAddress = @"Avda. de la Constitución 2222, México D.F., Mexico"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Mataderos 2312",
            Age = 49,
            City = @"México D.F.",
            Country = @"Mexico",
            Fax = @"(5) 555-3995",
            HireDate = @"2014-01-22",
            ID = 18,
            Name = @"Victoria Lincoln",
            ParentID = -1,
            Phone = @"(5) 555-3932",
            PostalCode = 5023,
            Title = @"Accounting Manager",
            LastName = @"Lincoln",
            FullAddress = @"Mataderos 2312, México D.F., Mexico"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"120 Hanover Sq.",
            Age = 61,
            City = @"London",
            Country = @"UK",
            Fax = @"(171) 555-6750",
            HireDate = @"2010-01-01",
            ID = 10,
            Name = @"Yang Wang",
            ParentID = -1,
            Phone = @"(171) 555-7788",
            PostalCode = 39000,
            Title = @"Localization Manager",
            LastName = @"Wang",
            FullAddress = @"120 Hanover Sq., London, UK"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Berguvsvägen 8",
            Age = 43,
            City = @"Luleå",
            Country = @"Sweden",
            Fax = @"0921-12 34 67",
            HireDate = @"2011-06-03",
            ID = 3,
            Name = @"Michael Burke",
            ParentID = 1,
            Phone = @"0921-12 34 65",
            PostalCode = 29000,
            Title = @"Senior Software Developer",
            LastName = @"Burke",
            FullAddress = @"Berguvsvägen 8, Luleå, Sweden"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Forsterstr. 57",
            Age = 29,
            City = @"Mannheim",
            Country = @"Germany",
            Fax = @"0621-08924",
            HireDate = @"2009-06-19",
            ID = 2,
            Name = @"Thomas Anderson",
            ParentID = 1,
            Phone = @"0621-08460",
            PostalCode = 68306,
            Title = @"Senior Software Developer",
            LastName = @"Anderson",
            FullAddress = @"Forsterstr. 57, Mannheim, Germany"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"24, place Kléber",
            Age = 31,
            City = @"Strasbourg",
            Country = @"France",
            Fax = @"88.60.15.32",
            HireDate = @"2014-08-18",
            ID = 11,
            Name = @"Monica Reyes",
            ParentID = 1,
            Phone = @"88.60.15.31",
            PostalCode = 67000,
            Title = @"Software Development Team Lead",
            LastName = @"Reyes",
            FullAddress = @"24, place Kléber, Strasbourg, France"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"C/ Araquil, 67",
            Age = 35,
            City = @"Madrid",
            Country = @"Spain",
            Fax = @"(911) 555 91 99",
            HireDate = @"2015-09-17",
            ID = 6,
            Name = @"Roland Mendel",
            ParentID = 11,
            Phone = @"(91) 555 22 82",
            PostalCode = 28023,
            Title = @"Senior Software Developer",
            LastName = @"Mendel",
            FullAddress = @"C/ Araquil, 67, Madrid, Spain"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"12, rue des Bouchers",
            Age = 44,
            City = @"Marseille",
            Country = @"France",
            Fax = @"91.24.45.41",
            HireDate = @"2009-10-11",
            ID = 12,
            Name = @"Sven Cooper",
            ParentID = 11,
            Phone = @"91.24.45.40",
            PostalCode = 13008,
            Title = @"Senior Software Developer",
            LastName = @"Cooper",
            FullAddress = @"12, rue des Bouchers, Marseille, France"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"23 Tsawassen Blvd.",
            Age = 44,
            City = @"Tsawassen",
            Country = @"Canada",
            Fax = @"(604) 555-3745",
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            ParentID = 4,
            Phone = @"(604) 555-4729",
            PostalCode = 19000,
            Title = @"Director",
            LastName = @"Johnson",
            FullAddress = @"23 Tsawassen Blvd., Tsawassen, Canada"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Fauntleroy Circus",
            Age = 25,
            City = @"London",
            Country = @"UK",
            Fax = @"(125) 555-3798",
            HireDate = @"2017-11-9",
            ID = 5,
            Name = @"Elizabeth Richards",
            ParentID = 4,
            Phone = @"(171) 555-1212",
            PostalCode = 30000,
            Title = @"Vice President",
            LastName = @"Richards",
            FullAddress = @"Fauntleroy Circus, London, UK"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Cerrito 333",
            Age = 39,
            City = @"Buenos Aires",
            Country = @"Argentina",
            Fax = @"(121) 135-4892",
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            ParentID = 5,
            Phone = @"(1) 135-5555",
            PostalCode = 1010,
            Title = @"Director",
            LastName = @"Ashworth",
            FullAddress = @"Cerrito 333, Buenos Aires, Argentina"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Sierras de Granada 9993",
            Age = 44,
            City = @"México D.F.",
            Country = @"Mexico",
            Fax = @"(153) 555-7293",
            HireDate = @"2014-04-04",
            ID = 17,
            Name = @"Antonio Moreno",
            ParentID = 18,
            Phone = @"(5) 555-3392",
            PostalCode = 5022,
            Title = @"Senior Accountant",
            LastName = @"Moreno",
            FullAddress = @"Sierras de Granada 9993, México D.F., Mexico"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Hauptstr. 29",
            Age = 50,
            City = @"Sao Paulo",
            Country = @"Brazil",
            Fax = @"(531) 555-6691",
            HireDate = @"2007-11-18",
            ID = 7,
            Name = @"Pedro Rodriguez",
            ParentID = 10,
            Phone = @"0452-076545",
            PostalCode = 3012,
            Title = @"Senior Localization Developer",
            LastName = @"Rodriguez",
            FullAddress = @"Hauptstr. 29, Sao Paulo, Brazil"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Av. dos Lusíadas, 23",
            Age = 27,
            City = @"Bern",
            Country = @"Switzerland",
            Fax = @"(271) 335-357",
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            ParentID = 10,
            Phone = @"(11) 555-7647",
            PostalCode = 40000,
            Title = @"Senior Localization",
            LastName = @"Harper",
            FullAddress = @"Av. dos Lusíadas, 23, Bern, Switzerland"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Berkeley Gardens 12",
            Age = 25,
            City = @"London",
            Country = @"UK",
            Fax = @"(171) 555-9199",
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            ParentID = 7,
            Phone = @"(171) 555-2282",
            PostalCode = 26000,
            Title = @"Localization Intern",
            LastName = @"Simpson",
            FullAddress = @"Berkeley Gardens 12, London, UK"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Walserweg 21",
            Age = 39,
            City = @"Aachen",
            Country = @"Germany",
            Fax = @"0241-059428",
            HireDate = @"2010-03-22",
            ID = 9,
            Name = @"Francisco Chang",
            ParentID = 7,
            Phone = @"0241-039123",
            PostalCode = 52066,
            Title = @"Localization Intern",
            LastName = @"Chang",
            FullAddress = @"Walserweg 21, Aachen, Germany"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"35 King George",
            Age = 25,
            City = @"London",
            Country = @"UK",
            Fax = @"(171) 555-3373",
            HireDate = @"2018-03-18",
            ID = 16,
            Name = @"Peter Lewis",
            ParentID = 7,
            Phone = @"(171) 555-0297",
            PostalCode = 48000,
            Title = @"Localization Intern",
            LastName = @"Lewis",
            FullAddress = @"35 King George, London, UK"
        });
    }
}csコピー

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="EmployeesFlatDetails"
        PrimaryKey="ID"
        ForeignKey="ParentID"
        ColumnSelection="GridSelectionMode.Multiple">
            <IgbColumn
            Field="Name"
            DataType="GridColumnDataType.String"
            Width="auto">
            </IgbColumn>

            <IgbColumnGroup
            Header="General Information">
                <IgbColumn
                Field="HireDate"
                Header="Hire Date"
                DataType="GridColumnDataType.Date">
                </IgbColumn>

                <IgbColumnGroup
                Header="Personal Details">
                    <IgbColumn
                    Field="ID"
                    DataType="GridColumnDataType.Number">
                    </IgbColumn>

                    <IgbColumn
                    Field="Title"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                    <IgbColumn
                    Field="Age"
                    DataType="GridColumnDataType.Number"
                    Selectable="false">
                    </IgbColumn>

                </IgbColumnGroup>

            </IgbColumnGroup>

            <IgbColumnGroup
            Header="Address Information">
                <IgbColumnGroup
                Header="Location">
                    <IgbColumn
                    Field="Country"
                    DataType="GridColumnDataType.String"
                    Selectable="false">
                    </IgbColumn>

                    <IgbColumn
                    Field="City"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                    <IgbColumn
                    Field="Address"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                </IgbColumnGroup>

                <IgbColumnGroup
                Header="Contact Information">
                    <IgbColumn
                    Field="Phone"
                    DataType="GridColumnDataType.String"
                    Selectable="false">
                    </IgbColumn>

                    <IgbColumn
                    Field="Fax"
                    DataType="GridColumnDataType.String"
                    Selectable="false">
                    </IgbColumn>

                    <IgbColumn
                    Field="PostalCode"
                    Header="Postal Code"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                </IgbColumnGroup>

            </IgbColumnGroup>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var treeGrid = this.treeGrid;

    }

    private IgbTreeGrid treeGrid;

    private EmployeesFlatDetails _employeesFlatDetails = null;
    public EmployeesFlatDetails EmployeesFlatDetails
    {
        get
        {
            if (_employeesFlatDetails == null)
            {
                _employeesFlatDetails = new EmployeesFlatDetails();
            }
            return _employeesFlatDetails;
        }
    }

}razorコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/
cssコピー

キーボードの組み合わせ

キーボードの組み合わせは、グリッドの ColumnSelection 入力が multiple に設定されている場合にのみ使用できます。

列の選択機能のキーボード ナビゲーションには 2 つのオプションがあります。

• 複数列選択 - Ctrl キーを押しながら、すべての選択可能なヘッダー セルを クリック。
• 範囲列の選択 - Shift キーを押しながら + クリック、間にあるすべての選択可能な列を選択します。

API 操作

API は、非表示列に関していくつかの追加機能を提供し、対応する setter を設定することにより、すべての非表示列を Selected としてマークできます。

上記は ColumnGroupComponent にも適用されますが、Selected プロパティを変更する場合、その子孫の状態を変更します。

API 操作の詳細については、API リファレンス セクションを参照してください。

スタイル設定

定義済みのテーマに加えて、利用可能な CSS プロパティのいくつかを設定することで、グリッドをさらにカスタマイズできます。一部の色を変更したい場合は、最初にグリッドの class を設定する必要があります。

<IgbTreeGrid class="grid"></IgbTreeGrid>
razor

次に、そのクラスに関連する CSS プロパティを設定します。

.grid {
    --ig-grid-row-selected-background: #0062A3;
    --ig-grid-row-selected-text-color: #ecaa53;
    --ig-grid-row-selected-hover-background: #0062A3;
    --ig-grid-header-selected-text-color: #ecaa53;
    --ig-grid-header-selected-background: #0062A3;
    --ig-grid-row-selected-hover-text-color: #ecaa53;
    --ig-grid-row-selected-hover-background: #0062A3;
}
css

デモ

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class EmployeesFlatDetailsItem
{
    public string Address { get; set; }
    public double Age { get; set; }
    public string City { get; set; }
    public string Country { get; set; }
    public string Fax { get; set; }
    public string HireDate { get; set; }
    public double ID { get; set; }
    public string Name { get; set; }
    public double ParentID { get; set; }
    public string Phone { get; set; }
    public double PostalCode { get; set; }
    public string Title { get; set; }
    public string LastName { get; set; }
    public string FullAddress { get; set; }
}

public class EmployeesFlatDetails
    : List<EmployeesFlatDetailsItem>
{
    public EmployeesFlatDetails()
    {
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Obere Str. 57",
            Age = 55,
            City = @"Berlin",
            Country = @"Germany",
            Fax = @"030-0076545",
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            ParentID = -1,
            Phone = @"030-0074321",
            PostalCode = 12209,
            Title = @"Development Manager",
            LastName = @"Winchester",
            FullAddress = @"Obere Str. 57, Berlin, Germany"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Avda. de la Constitución 2222",
            Age = 42,
            City = @"México D.F.",
            Country = @"Mexico",
            Fax = @"(51) 555-3745",
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            ParentID = -1,
            Phone = @"(5) 555-4729",
            PostalCode = 5021,
            Title = @"CEO",
            LastName = @"Sanders",
            FullAddress = @"Avda. de la Constitución 2222, México D.F., Mexico"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Mataderos 2312",
            Age = 49,
            City = @"México D.F.",
            Country = @"Mexico",
            Fax = @"(5) 555-3995",
            HireDate = @"2014-01-22",
            ID = 18,
            Name = @"Victoria Lincoln",
            ParentID = -1,
            Phone = @"(5) 555-3932",
            PostalCode = 5023,
            Title = @"Accounting Manager",
            LastName = @"Lincoln",
            FullAddress = @"Mataderos 2312, México D.F., Mexico"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"120 Hanover Sq.",
            Age = 61,
            City = @"London",
            Country = @"UK",
            Fax = @"(171) 555-6750",
            HireDate = @"2010-01-01",
            ID = 10,
            Name = @"Yang Wang",
            ParentID = -1,
            Phone = @"(171) 555-7788",
            PostalCode = 39000,
            Title = @"Localization Manager",
            LastName = @"Wang",
            FullAddress = @"120 Hanover Sq., London, UK"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Berguvsvägen 8",
            Age = 43,
            City = @"Luleå",
            Country = @"Sweden",
            Fax = @"0921-12 34 67",
            HireDate = @"2011-06-03",
            ID = 3,
            Name = @"Michael Burke",
            ParentID = 1,
            Phone = @"0921-12 34 65",
            PostalCode = 29000,
            Title = @"Senior Software Developer",
            LastName = @"Burke",
            FullAddress = @"Berguvsvägen 8, Luleå, Sweden"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Forsterstr. 57",
            Age = 29,
            City = @"Mannheim",
            Country = @"Germany",
            Fax = @"0621-08924",
            HireDate = @"2009-06-19",
            ID = 2,
            Name = @"Thomas Anderson",
            ParentID = 1,
            Phone = @"0621-08460",
            PostalCode = 68306,
            Title = @"Senior Software Developer",
            LastName = @"Anderson",
            FullAddress = @"Forsterstr. 57, Mannheim, Germany"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"24, place Kléber",
            Age = 31,
            City = @"Strasbourg",
            Country = @"France",
            Fax = @"88.60.15.32",
            HireDate = @"2014-08-18",
            ID = 11,
            Name = @"Monica Reyes",
            ParentID = 1,
            Phone = @"88.60.15.31",
            PostalCode = 67000,
            Title = @"Software Development Team Lead",
            LastName = @"Reyes",
            FullAddress = @"24, place Kléber, Strasbourg, France"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"C/ Araquil, 67",
            Age = 35,
            City = @"Madrid",
            Country = @"Spain",
            Fax = @"(911) 555 91 99",
            HireDate = @"2015-09-17",
            ID = 6,
            Name = @"Roland Mendel",
            ParentID = 11,
            Phone = @"(91) 555 22 82",
            PostalCode = 28023,
            Title = @"Senior Software Developer",
            LastName = @"Mendel",
            FullAddress = @"C/ Araquil, 67, Madrid, Spain"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"12, rue des Bouchers",
            Age = 44,
            City = @"Marseille",
            Country = @"France",
            Fax = @"91.24.45.41",
            HireDate = @"2009-10-11",
            ID = 12,
            Name = @"Sven Cooper",
            ParentID = 11,
            Phone = @"91.24.45.40",
            PostalCode = 13008,
            Title = @"Senior Software Developer",
            LastName = @"Cooper",
            FullAddress = @"12, rue des Bouchers, Marseille, France"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"23 Tsawassen Blvd.",
            Age = 44,
            City = @"Tsawassen",
            Country = @"Canada",
            Fax = @"(604) 555-3745",
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            ParentID = 4,
            Phone = @"(604) 555-4729",
            PostalCode = 19000,
            Title = @"Director",
            LastName = @"Johnson",
            FullAddress = @"23 Tsawassen Blvd., Tsawassen, Canada"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Fauntleroy Circus",
            Age = 25,
            City = @"London",
            Country = @"UK",
            Fax = @"(125) 555-3798",
            HireDate = @"2017-11-9",
            ID = 5,
            Name = @"Elizabeth Richards",
            ParentID = 4,
            Phone = @"(171) 555-1212",
            PostalCode = 30000,
            Title = @"Vice President",
            LastName = @"Richards",
            FullAddress = @"Fauntleroy Circus, London, UK"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Cerrito 333",
            Age = 39,
            City = @"Buenos Aires",
            Country = @"Argentina",
            Fax = @"(121) 135-4892",
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            ParentID = 5,
            Phone = @"(1) 135-5555",
            PostalCode = 1010,
            Title = @"Director",
            LastName = @"Ashworth",
            FullAddress = @"Cerrito 333, Buenos Aires, Argentina"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Sierras de Granada 9993",
            Age = 44,
            City = @"México D.F.",
            Country = @"Mexico",
            Fax = @"(153) 555-7293",
            HireDate = @"2014-04-04",
            ID = 17,
            Name = @"Antonio Moreno",
            ParentID = 18,
            Phone = @"(5) 555-3392",
            PostalCode = 5022,
            Title = @"Senior Accountant",
            LastName = @"Moreno",
            FullAddress = @"Sierras de Granada 9993, México D.F., Mexico"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Hauptstr. 29",
            Age = 50,
            City = @"Sao Paulo",
            Country = @"Brazil",
            Fax = @"(531) 555-6691",
            HireDate = @"2007-11-18",
            ID = 7,
            Name = @"Pedro Rodriguez",
            ParentID = 10,
            Phone = @"0452-076545",
            PostalCode = 3012,
            Title = @"Senior Localization Developer",
            LastName = @"Rodriguez",
            FullAddress = @"Hauptstr. 29, Sao Paulo, Brazil"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Av. dos Lusíadas, 23",
            Age = 27,
            City = @"Bern",
            Country = @"Switzerland",
            Fax = @"(271) 335-357",
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            ParentID = 10,
            Phone = @"(11) 555-7647",
            PostalCode = 40000,
            Title = @"Senior Localization",
            LastName = @"Harper",
            FullAddress = @"Av. dos Lusíadas, 23, Bern, Switzerland"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Berkeley Gardens 12",
            Age = 25,
            City = @"London",
            Country = @"UK",
            Fax = @"(171) 555-9199",
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            ParentID = 7,
            Phone = @"(171) 555-2282",
            PostalCode = 26000,
            Title = @"Localization Intern",
            LastName = @"Simpson",
            FullAddress = @"Berkeley Gardens 12, London, UK"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"Walserweg 21",
            Age = 39,
            City = @"Aachen",
            Country = @"Germany",
            Fax = @"0241-059428",
            HireDate = @"2010-03-22",
            ID = 9,
            Name = @"Francisco Chang",
            ParentID = 7,
            Phone = @"0241-039123",
            PostalCode = 52066,
            Title = @"Localization Intern",
            LastName = @"Chang",
            FullAddress = @"Walserweg 21, Aachen, Germany"
        });
        this.Add(new EmployeesFlatDetailsItem()
        {
            Address = @"35 King George",
            Age = 25,
            City = @"London",
            Country = @"UK",
            Fax = @"(171) 555-3373",
            HireDate = @"2018-03-18",
            ID = 16,
            Name = @"Peter Lewis",
            ParentID = 7,
            Phone = @"(171) 555-0297",
            PostalCode = 48000,
            Title = @"Localization Intern",
            LastName = @"Lewis",
            FullAddress = @"35 King George, London, UK"
        });
    }
}csコピー

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<style>
/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/

#treeGrid {
    --ig-grid-row-selected-background: #0062A3;
    --ig-grid-row-selected-text-color: #ecaa53;
    --ig-grid-row-selected-hover-background: #0062A3;
    --ig-grid-header-selected-text-color: #ecaa53;
    --ig-grid-header-selected-background: #0062A3;
    --ig-grid-row-selected-hover-text-color: #ecaa53;
    --ig-grid-row-selected-hover-background: #0062A3;
}
</style>
<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="EmployeesFlatDetails"
        PrimaryKey="ID"
        ForeignKey="ParentID"
        ColumnSelection="GridSelectionMode.Multiple">
            <IgbColumn
            Field="Name"
            DataType="GridColumnDataType.String">
            </IgbColumn>

            <IgbColumnGroup
            Header="General Information">
                <IgbColumn
                Field="HireDate"
                Header="Hire Date"
                DataType="GridColumnDataType.Date">
                </IgbColumn>

                <IgbColumnGroup
                Header="Personal Details">
                    <IgbColumn
                    Field="ID"
                    DataType="GridColumnDataType.Number">
                    </IgbColumn>

                    <IgbColumn
                    Field="Title"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                    <IgbColumn
                    Field="Age"
                    DataType="GridColumnDataType.Number"
                    Selectable="false">
                    </IgbColumn>

                </IgbColumnGroup>

            </IgbColumnGroup>

            <IgbColumnGroup
            Header="Address Information">
                <IgbColumnGroup
                Header="Location">
                    <IgbColumn
                    Field="Country"
                    DataType="GridColumnDataType.String"
                    Selectable="false">
                    </IgbColumn>

                    <IgbColumn
                    Field="City"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                    <IgbColumn
                    Field="Address"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                </IgbColumnGroup>

                <IgbColumnGroup
                Header="Contact Information">
                    <IgbColumn
                    Field="Phone"
                    DataType="GridColumnDataType.String"
                    Selectable="false">
                    </IgbColumn>

                    <IgbColumn
                    Field="Fax"
                    DataType="GridColumnDataType.String"
                    Selectable="false">
                    </IgbColumn>

                    <IgbColumn
                    Field="PostalCode"
                    Header="Postal Code"
                    DataType="GridColumnDataType.String">
                    </IgbColumn>

                </IgbColumnGroup>

            </IgbColumnGroup>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var treeGrid = this.treeGrid;

    }

    private IgbTreeGrid treeGrid;

    private EmployeesFlatDetails _employeesFlatDetails = null;
    public EmployeesFlatDetails EmployeesFlatDetails
    {
        get
        {
            if (_employeesFlatDetails == null)
            {
                _employeesFlatDetails = new EmployeesFlatDetails();
            }
            return _employeesFlatDetails;
        }
    }

}razorコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/

#treeGrid {
    --ig-grid-row-selected-background: #0062A3;
    --ig-grid-row-selected-text-color: #ecaa53;
    --ig-grid-row-selected-hover-background: #0062A3;
    --ig-grid-header-selected-text-color: #ecaa53;
    --ig-grid-header-selected-background: #0062A3;
    --ig-grid-row-selected-hover-text-color: #ecaa53;
    --ig-grid-row-selected-hover-background: #0062A3;
}

cssコピー

API リファレンス

以下は、列選択 UI のその他の API です。

• IgbTreeGrid
• IgbColumn
• IgbColumnGroup

IgbTreeGrid プロパティ:

• ColumnSelection
• SelectedColumns
• SelectColumns
• DeselectColumns
• SelectAllColumns
• DeselectAllColumns

IgbColumn プロパティ:

• Selectable
• Selected

IgbColumnGroup プロパティ:

• Selectable
• Selected

IgbTreeGrid イベント:

• OnColumnsSelectionChange

その他のリソース

コミュニティに参加して新しいアイデアをご提案ください。

• Ignite UI for Blazor フォーラム (英語)
• Ignite UI for Blazor GitHub (英語)