このコントロールは非推奨であり、Grid に置き換えられていることに注意してください。そのため、そのコントロールに移行することをお勧めします。これは新しい機能を受け取ることはなく、バグ修正は優先されません。コードベースをデータ グリッドに移行する際のヘルプや質問については、サポートにお問い合わせください。

Blazor グリッド セルのアクティブ化

Ignite UI for Blazor Data Table / Data Grid は、グリッドのセルを介したキーボードナビゲーションを可能にするセルアクティベーション機能をサポートします。これは、グリッドの ActivationMode プロパティを Cell に設定することによってアクティブになります。

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。

無料で試してみる

Blazor グリッド セルのアクティブ化の例

EXAMPLE

MODULES

DATA GENERATOR

DATA SOURCE

RAZOR

CSS

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(IgbDataGridModule),
                typeof(IgbGridColumnOptionsModule)
    );
            await builder.Build().RunAsync();
        }
    }
}csコピー

using System;
using System.Collections.Generic;
using System.Linq;

namespace Infragistics.Samples
{
    public static class DataGenerator
    {
        readonly static string[] websites = { ".com", ".gov", ".edu", ".org" };
        readonly static string[] emails = { "gmail.com", "yahoo.com", "twitter.com" };
        readonly static string[] genders = { "male", "female" };
        readonly static string[] maleNames = { "Kyle", "Oscar", "Ralph", "Mike", "Bill", "Frank", "Howard", "Jack", "Larry", "Pete", "Steve", "Vince", "Mark", "Alex", "Max", "Brian", "Chris", "Andrew", "Martin", "Mike", "Steve", "Glenn", "Bruce" };
        readonly static string[] femaleNames = { "Gina", "Irene", "Katie", "Brenda", "Casey", "Fiona", "Holly", "Kate", "Liz", "Pamela", "Nelly", "Marisa", "Monica", "Anna", "Jessica", "Sofia", "Isabella", "Margo", "Jane", "Audrey", "Sally", "Melanie", "Greta", "Aurora", "Sally" };
        readonly static string[] lastNames = { "Adams", "Crowley", "Ellis", "Martinez", "Irvine", "Maxwell", "Clark", "Owens", "Rooney", "Lincoln", "Thomas", "Spacey", "MOrgan", "King", "Newton", "Fitzgerald", "Holmes", "Jefferson", "Landry", "Berry", "Perez", "Spencer", "Starr", "Carter", "Edwards", "Stark", "Johnson", "Fitz", "Chief", "Blanc", "Perry", "Stone", "Williams", "Lane", "Jobs", "Adams", "Power", "Tesla" };
        readonly static string[] countries = { "USA", "UK", "France", "Canada", "Poland" };
        readonly static string[] citiesUS = { "New York", "Los Angeles", "Miami", "San Francisco", "San Diego", "Las Vegas" };
        readonly static string[] citiesUK = { "London", "Liverpool", "Manchester" };
        readonly static string[] citiesFR = { "Paris", "Marseille", "Lyon" };
        readonly static string[] citiesCA = { "Toronto", "Vancouver", "Montreal" };
        readonly static string[] citiesPL = { "Krakow", "Warsaw", "Wroclaw", "Gdansk" };
        readonly static string[] citiesJP = { "Tokyo", "Osaka", "Kyoto", "Yokohama" };
        readonly static string[] citiesGR = { "Berlin", "Bonn", "Cologne", "Munich", "Hamburg" };
        readonly static string[] roadSuffixes = { "Road", "Street", "Way" };
        readonly static string[] roadNames = { "Main", "Garden", "Broad", "Oak", "Cedar", "Park", "Pine", "Elm", "Market", "Hill" };

        public static Random Rand = new Random();

        public static string GetWebsite()
        {
            return GetItem(websites);
        }

        public static string GetEmail()
        {
            return GetItem(emails);
        }

        public static double GetNumber(double min, double max)
        {
            return Math.Round(min + (Rand.NextDouble() * (max - min)));
        }

        public static int GetInteger(double min, double max)
        {
            return (int)GetNumber(min, max);
        }

        public static string GetPhone()
        {
            var phoneCode = GetNumber(100, 900);
            var phoneNum1 = GetNumber(100, 900);
            var phoneNum2 = GetNumber(1000, 9000);
            var phone = phoneCode + "-" + phoneNum1 + "-" + phoneNum2;
            return phone;
        }

        public static string GetGender()
        {
            return GetItem(genders);
        }

        public static string GetNameFirst(string gender)
        {
            if (gender == "male")
                return GetItem(maleNames);
            else
                return GetItem(femaleNames);
        }

        public static string GetNameLast()
        {
            return GetItem(lastNames);
        }

        public static string GetItem(string[] array)
        {
            var index = (int)Math.Round(GetNumber(0, array.Length - 1));
            return array[index];
        }

        public static string GetCountry()
        {
            return GetItem(countries);
        }

        public static string GetCity(string country)
        {
            if (country == "Canada")
            {
                return GetItem(citiesCA);
            }
            else if (country == "France")
            {
                return GetItem(citiesFR);
            }
            else if (country == "Poland")
            {
                return GetItem(citiesPL);
            }
            else if (country == "USA")
            {
                return GetItem(citiesUS);
            }
            else if (country == "Japan")
            {
                return GetItem(citiesJP);
            }
            else if (country == "Germany")
            {
                return GetItem(citiesGR);
            }
            else
            { // if (country === "United Kingdom") {
                return GetItem(citiesUK);
            }
        }

        public static string GetStreet()
        {
            var num = Math.Round(GetNumber(100, 300)).ToString();
            var road = GetItem(roadNames);
            var suffix = GetItem(roadSuffixes);
            return num + " " + road + " " + suffix;
        }

        public static DateTime GetBirthday()
        {
            var year = DateTime.Now.Year - GetInteger(30, 50);
            var month = GetNumber(10, 12);
            var day = GetNumber(20, 27);
            return new DateTime(year, (int)month, (int)day);
        }

        public static DateTime GetDate()
        {
            var year = DateTime.Now.Year;
            var month = GetNumber(10, 12);
            var day = GetNumber(20, 27);
            return new DateTime(year, (int)month, (int)day);
        }

        public static string Pad(int num, int size)
        {
            var s = num + "";
            while (s.Length < size)
            {
                s = "0" + s;
            }
            return s;
        }

        public static string GetPhotoMale(int id)
        {
            return "https://static.infragistics.com/xplatform/images/people/GUY" + Pad(id, 2) + ".png";
        }

        public static string GetPhotoFemale(int id)
        {
            return "https://static.infragistics.com/xplatform/images/people/GIRL" + Pad(id, 2) + ".png";
        }

        private static int maleCount = 0;
        private static int femaleCount = 0;
        public static string GetPhoto(string gender)
        {
            if (gender == "male")
            {
                maleCount++;
                if (maleCount > 24) maleCount = 1;
                return GetPhotoMale(maleCount);
            }
            else
            {
                femaleCount++;
                if (femaleCount > 24) femaleCount = 1;
                return GetPhotoFemale(femaleCount);
            }
        }

        public static string GetGenderPhoto(string gender)
        {
            return "https://static.infragistics.com/xplatform/images/genders/" + gender + ".png";
        }

        public static string GetCountryFlag(string country)
        {
            return "https://static.infragistics.com/xplatform/images/flags/" + country + ".png";
        }

        public static string GetIncomeRange(double salary)
        {
            if (salary < 50000)
            {
                return "Low";
            }
            else if (salary < 100000)
            {
                return "Average";
            }
            else
            {
                return "High";
            }
        }

    }

}csコピー

using System;
using System.Collections.Generic;
using System.ComponentModel;

namespace Infragistics.Samples
{
    public class Employee : INotifyPropertyChanged
    {
        public string ID { get; set; }
        public string Address { get; set; }
        public double Age { get; set; }
        public string Gender { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Name { get; set; }
        public string Street { get; set; }
        public string City { get; set; }
        public string Email { get; set; }
        public string Phone { get; set; }
        public string Photo { get; set; }
        public double Salary { get; set; }
        public double Sales { get; set; }
        public string Income { get; set; }
        public int Index { get; set; }

        public DateTime Birthday { get; set; }
        public List<Productivity> Productivity { get; set; }

        private string _Country;
        public string Country
        {
            get { return _Country; }
            set { if (_Country != value) { OnCountryChanged(value); } }
        }

        public string CountryFlag { get; set; }

        protected void OnCountryChanged(string countryName)
        {
            // syncronizing country name and country flag
            _Country = countryName;
            CountryFlag = DataGenerator.GetCountryFlag(countryName);
            City = DataGenerator.GetCity(countryName);
            OnPropertyChanged("Country");
        }

        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }

    public class Productivity
    {
        public double Value { get; set; }
        public int Week { get; set; }
    }

    public static class EmployeeData
    {
        public static List<Employee> Create(int? count, bool? useProductivity)
        {
            if (count == null) count = 100;

            var employees = new List<Employee>();
            for (int i = 0; i < count; i++)
            {
                var age = Math.Round(DataGenerator.GetNumber(20, 40));
                var gender = DataGenerator.GetGender();
                var firstName = DataGenerator.GetNameFirst(gender);
                var lastName = DataGenerator.GetNameLast();
                var street = DataGenerator.GetStreet();
                var country = DataGenerator.GetCountry();
                var city = DataGenerator.GetCity(country);
                var email = firstName.ToLower() + "@" + DataGenerator.GetEmail();
                var photoPath = DataGenerator.GetPhoto(gender);

                var employee = new Employee
                {
                    Index = i,
                    Address = street + ", " + city,
                    Age = age,
                    Birthday = DataGenerator.GetBirthday(),
                    City = city,
                    Email = email,
                    Gender = gender,
                    ID = DataGenerator.Pad(1001 + i, 4),
                    FirstName = firstName,
                    LastName = lastName,
                    Name = firstName + " " + lastName,
                    Photo = photoPath,
                    Phone = DataGenerator.GetPhone(),
                    Street = DataGenerator.GetStreet(),
                    Salary = DataGenerator.GetNumber(40, 200) * 1000,
                    Sales = DataGenerator.GetNumber(200, 980) * 1000,
                };
                employee.Country = country;

                employee.Income = DataGenerator.GetIncomeRange(employee.Salary);

                if (useProductivity.HasValue && useProductivity.Value)
                {
                    employee.Productivity = GetProductivity(52);
                }
                employees.Add(employee);
            }

            return employees;
        }

        public static List<Productivity> GetProductivity(int weekCount)
        {
            var productivity = new List<Productivity>();

            for (var w = 1; w <= weekCount; w++)
            {
                var value = DataGenerator.GetNumber(-50, 50);
                var prod = new Productivity
                {
                    Value = value,
                    Week = w
                };
                productivity.Add(prod);
            };

            return productivity;
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<div class="container vertical">

    <div class="container vertical">
        <div class="options horizontal">
            <label>
                Enter Key Mode:
                <select @bind="EnterKeyMode">
                    <option>@EnterKeyBehaviors.Edit</option>
                    <option>@EnterKeyBehaviors.MoveDown</option>
                    <option>@EnterKeyBehaviors.MoveLeft</option>
                    <option>@EnterKeyBehaviors.MoveRight</option>
                    <option>@EnterKeyBehaviors.MoveUp</option>
                    <option>@EnterKeyBehaviors.None</option>
                </select>
            </label>
            <label>
                Enter Key After Edit Mode:
                <select @bind="EnterKeyAfterEditMode" disabled="@EditDisabled">
                    <option>@EnterKeyBehaviorAfterEdit.MoveDown</option>
                    <option>@EnterKeyBehaviorAfterEdit.MoveLeft</option>
                    <option>@EnterKeyBehaviorAfterEdit.MoveRight</option>
                    <option>@EnterKeyBehaviorAfterEdit.MoveUp</option>
                    <option>@EnterKeyBehaviorAfterEdit.None</option>
                </select>
            </label>
        </div>
        @if (Data != null)
        {
        <div style="overflow: hidden">
            <IgbDataGrid Height="100%" Width="100%"
                  DataSource="Data"
                  EnterBehavior="@EnterKeyMode"
                  EnterBehaviorAfterEdit="@EnterKeyAfterEditMode"
                  EditMode="@CanEdit"
                  AutoGenerateColumns="false"
                  SelectionMode="DataGridSelectionMode.SingleRow"
                  ActivationMode="GridActivationMode.Cell">
                <IgbTextColumn Width="@("*>170")" Field="Name" />
                <IgbImageColumn Width="@("*>120")" IsEditable="false" Field="Photo" PaddingTop="5" PaddingBottom="5" ContentOpacity="1" HorizontalAlignment="@CellContentHorizontalAlignment.Center"/>
                <IgbNumericColumn Width="@("*>100")" Field="Age" HorizontalAlignment="@CellContentHorizontalAlignment.Center"/>
                <IgbTextColumn Width="@("*>150")" Field="Street" HeaderText="Address" />
                <IgbTextColumn Width="@("*>130")"Field="City"  />
                <IgbImageColumn Width="@("*>120")" IsEditable="false" Field="CountryFlag" HeaderText="Country" PaddingTop="5" PaddingBottom="5" ContentOpacity="1" />
                <IgbTextColumn Field="Phone" Width="@("*>120")" />
                <IgbDateTimeColumn Width="@("*>150")" Field="Birthday" HorizontalAlignment="@CellContentHorizontalAlignment.Center"/>
                <IgbNumericColumn Width="@("*>170")" Field="Salary" PositivePrefix="$" ShowGroupingSeparator="true" MinFractionDigits="2" />
                <IgbTextColumn Width="@("*>150")" Field="Email" />
            </IgbDataGrid>
        </div>
        }

    </div>
</div>

@code {

    private object Data;
    private bool EditDisabled { get; set; }

    private EditModeType _canEdit;
    public EditModeType CanEdit
    {
        get { return _canEdit; }
        set
        {
            _canEdit = value;
        }
    }

    private EnterKeyBehaviors _enterKeyMode;
    public EnterKeyBehaviors EnterKeyMode
    {
        get { return _enterKeyMode; }
        set
        {
            _enterKeyMode = value;
            if (_enterKeyMode == EnterKeyBehaviors.Edit)
            {
                EditDisabled = false;
                CanEdit = EditModeType.Cell;
            }
            else
            {
                EditDisabled = true;
                CanEdit = EditModeType.None;
            }
        }
    }

    private EnterKeyBehaviorAfterEdit _enterKeyAfterEditMode;
    public EnterKeyBehaviorAfterEdit EnterKeyAfterEditMode
    {
        get { return _enterKeyAfterEditMode; }
        set
        {
            _enterKeyAfterEditMode = value;
        }
    }

    protected override void OnInitialized()
    {

        this.Data = EmployeeData.Create(200, false);
        this.EnterKeyMode = EnterKeyBehaviors.Edit;
        this.EnterKeyAfterEditMode = EnterKeyBehaviorAfterEdit.MoveDown;
    }

}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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Excel スタイルのナビゲーション

EnterBehaviorAfterEdit プロパティは、編集モードで Enter キーが押された後、上、下、左、または右の次のセルに移動するようにグリッドを構成します。それ以外の場合は、グリッドの EnterBehavior プロパティを使用して、編集モードではなく、上、下、左、または右に他のセルに移動できます。

キーボード ナビゲーション

グリッドの ActivationMode プロパティを Cell に設定すると、データ グリッド内のさまざまなキーボードナビゲーションオプションが有効になります。以下は、現在押下されているセルに対する各キーの押下/組み合わせとそれらが持つ効果についての説明です。

• ↑: 1 つ上のセルに移動します。
• ↓: 1 つ下のセルに移動します。
• ←: 現在の行でセルを 1 つ左に移動します。
• → 現在の行でセルを 1 つ右に移動します。
• Page Up: グリッドを 1 ビューポート ページ上にスクロールします。
• Page Down: グリッドを 1 ビューポート ページ下にスクロールします。
• Tab: アクティブ セルを右の以下のセルに移動するか、その行の最後のセルに達した場合、以下の行の一番左のセルに移動します。
• Shift + Tab: アクティブセルを左の以下のセルに移動するか、またはその行の最初のセルに達した場合、前の行の一番右のセルに移動します。
• Ctrl + ↑: 列の一番上のセルに移動します。
• Ctrl + ↓: 列の一番下のセルに移動します。
• Ctrl + ←: 列の一番左のセルに移動します。
• Ctrl + →: 列の一番右のセルに移動します。
• Ctrl + Home: グリッド内の左上のセルに移動します。
• Ctrl + End: グリッド内の右下のセルに移動します。

API リファレンス

• ActivationMode
• Cell