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 Grid ハイライト表示
Ignite UI for Blazor Data Table / Data Grid は、行のハイライト表示の構成をサポートします。
Blazor Grid ハイライト表示の例
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();
}
}
}
csusing 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";
}
}
}
}
csusing 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
@using IgniteUI.Blazor.Controls
<div class="container vertical">
<div class="options horizontal">
<label class="options-label">Enable Row Hover:</label>
<label class="options-item">
<input type="checkbox" checked="@RowHoverEnabled" @onchange="OnIsRowHoverEnabledChange" />
</label>
<label class="options-label">Highlight Color:</label>
<select @onchange="OnRowHoverHighlightChange">
<option>Default</option>
<option>Red</option>
<option>Green</option>
<option>Blue</option>
</select>
</div>
<div class="container vertical">
@if (Data != null)
{
<div style="overflow: hidden">
<IgbDataGrid Height="100%" Width="100%"
DefaultColumnMinWidth="100"
AutoGenerateColumns="false"
DataSource="Data"
IsRowHoverEnabled="@RowHoverEnabled"
RowHoverBackground="@HighlightColor"
SelectionMode="DataGridSelectionMode.MultipleRow"
IsColumnOptionsEnabled="true">
<IgbTextColumn Field="Name" Width="@("*>150")" />
<IgbTextColumn Field="Street" HeaderText="Street" Width="@("*>160")" />
<IgbTextColumn Field="City" HeaderText="City" Width="@("*>120")" />
<IgbNumericColumn Field="Salary" HeaderText="Salary" PositivePrefix="$" ShowGroupingSeparator="true" Width="@("*>120")" />
<IgbImageColumn IsEditable="false" Field="Photo" HeaderText="Photo" ContentOpacity="1" HorizontalAlignment="@CellContentHorizontalAlignment.Center" Width="@("*>110")" />
<IgbDateTimeColumn Field="Birthday" HeaderText="Date of Birth" Width="@("*>170")" />
</IgbDataGrid>
</div>
}
</div>
</div>
@code {
private bool RowHoverEnabled { get; set; } = true;
private string HighlightColor { get; set; }
private List<Employee> Data;
protected override void OnInitialized()
{
Data = EmployeeData.Create(100, false);
}
private void OnIsRowHoverEnabledChange(ChangeEventArgs args)
{
bool value = args.Value != null ? (bool)args.Value : false;
if (value)
{
this.RowHoverEnabled = true;
}
else
{
this.RowHoverEnabled = false;
}
}
private void OnRowHoverHighlightChange(ChangeEventArgs args)
{
string value = (string)args.Value;
if (value == "Default")
{
this.HighlightColor = "";
}
else if(value == "Red")
{
this.HighlightColor = "red";
}
else if (value == "Blue")
{
this.HighlightColor = "blue";
}
else if (value == "Green")
{
this.HighlightColor = "green";
}
StateHasChanged();
}
}
razor/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/
css
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概要
Blazor データ内のレコードのハイライト表示は、Blazor グリッド の IsRowHoverEnabled
ブール値プロパティを設定して切り替えることができます。これはデフォルトで有効になっていることに注意してください。
さらに、RowHoverBackground
文字列プロパティを 16 進数値に設定して色を設定できます。
コード スニペット
以下は、Blazor データ グリッドで行のハイライト表示を有効にし、青色を適用する方法を示します。
<IgbDataGrid Height="100%" Width="100%"
DataSource="DataSource"
IsRowHoverEnabled="true"
RowHoverBackground="#bfbfff" />
razor