datagrid 超链接

DataGrid中实现超链接的3种方法

在WPF中，DataGrid是一个非常常用的控件，用于展示和编辑数据，我们需要在DataGrid中显示一些超链接，以便用户可以点击跳转到其他网页或者执行其他操作，本文将介绍三种在DataGrid中实现超链接的方法。

方法一：使用TextBlock作为单元格模板

1、在XAML中定义一个DataGrid,并设置其ItemsSource属性为需要展示的数据集合，设置DataGrid的AutoGenerateColumns属性为False,以便自定义列的内容。

<DataGrid x:Name="dataGrid" AutoGenerateColumns="False">
    <DataGrid.Columns>
        <DataGridTextColumn Header="名称" Binding="{Binding Name}" />
        <DataGridTextColumn Header="描述" Binding="{Binding Description}" />
    </DataGrid.Columns>
</DataGrid>

2、在代码后台，创建一个自定义的TextBlock,并设置其Foreground属性为蓝色，以表示这是一个超链接，设置其NavigateUri属性为目标网址，将TextBlock添加到CellTemplate中。

private void AddHyperlinkToDataGrid()
{
    // 创建一个自定义的TextBlock
    TextBlock hyperlinkTextBlock = new TextBlock
    {
        Foreground = Brushes.Blue,
        Cursor = Cursors.Hand,
        Margin = new Thickness(5)
    };
    // 设置NavigateUri属性为目标网址
    hyperlinkTextBlock.NavigateUri = new Uri("https://www.example.com");
    // 将TextBlock添加到CellTemplate中
    DataGridTextColumn nameColumn = new DataGridTextColumn();
    nameColumn.Binding = new Binding("Name");
    nameColumn.CellStyle = new Style(typeof(DataGridCell))
    {
        Setters = new List<Setter>()
        {
            new Setter(DataGridCell.ContentProperty, new FrameworkElementFactory(typeof(TextBlock)))
            {
                ArgumentList = new PropertyArgumentList()
                {
                    new PropertyArgument("Content"), hyperlinkTextBlock
                }
            }
        }
    };
    DataGrid.Columns.Add(nameColumn);
}

3、在窗口加载时调用AddHyperlinkToDataGrid方法，将自定义的TextBlock添加到DataGrid的单元格中。

public Window1()
{
    InitializeComponent();
    AddHyperlinkToDataGrid();
}

方法二：使用DataTemplate和HyperlinkButton控件

1、在XAML中定义一个DataGrid,并设置其ItemsSource属性为需要展示的数据集合，设置DataGrid的AutoGenerateColumns属性为False,以便自定义列的内容，接下来，定义一个名为"Hyperlink"的DataTemplate。

<DataGrid x:Name="dataGrid" AutoGenerateColumns="False">
    <DataGrid.Columns>
        <DataGridTextColumn Header="名称" Binding="{Binding Name}" />
        <DataGridTextColumn Header="描述" Binding="{Binding Description}" />
    </DataGrid.Columns>
</DataGrid>
<DataTemplate x:Key="HyperlinkTemplate">
    <HyperlinkButton Content="{Binding Name}" Command="{Binding DataContext.OpenUrlCommand, ElementName=dataGrid}" RequestNavigate="HyperlinkButton_RequestNavigate">
        <HyperlinkButton.Background>
            <SolidColorBrush Color="Blue"/>
        </HyperlinkButton.Background>
        <HyperlinkButton.Foreground>
            <SolidColorBrush Color="White"/>
        </HyperlinkButton.Foreground>
        <HyperlinkButton.BorderBrush>
            <SolidColorBrush Color="Black"/>
        </HyperlinkButton.BorderBrush>
    </HyperlinkButton>
</DataTemplate>

2、在代码后台，创建一个命令OpenUrlCommand,用于执行打开超链接的操作，创建一个Window类，并在其中定义一个名为OpenUrl的方法，用于处理打开超链接的事件，在App.xaml中注册Window类。

public class OpenUrlCommand : ICommand
{
    public event EventHandler CanExecuteChanged;
    public bool CanExecute(object parameter) => true; // 只允许打开超链接，不允许执行其他操作
    public void Execute(object parameter) => OpenUrl(); // 点击按钮时执行OpenUrl方法
}
public partial class Window1 : Window, INotifyPropertyChanged => this.PropertyChanged += Window1_PropertyChanged; this.PropertyChanged += Window1_PropertyChanged; private void Window1_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e) => this.OnPropertyChanged(e); private void OpenUrl() => System.Diagnostics.Process.Start("https://www.example.com"); private void HyperlinkButton_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e) => this.OpenUrl(); private void Window1_Loaded(object sender, RoutedEventArgs e) => this.OpenUrlCommand = new OpenUrlCommand(); // 在窗口加载时绑定命令对象 dataGrid.DataContext = this; // 将窗口数据上下文设置为当前窗口 dataGrid.ItemsSource = new List<Person> {"张三", "李四", "王五"}; // 为DataGrid添加数据列表 dataGrid.ItemTemplate = this.FindResource("HyperlinkTemplate") as DataTemplate; // 将自定义的DataTemplate应用到DataGrid上 // 当窗口关闭时解除绑定命令对象 dataGrid.DataContext = null; // 将窗口数据上下文设置为null dataGrid.ItemsSource = null; // 将DataGrid的数据列表设置为null if (this != null) this.Dispose(); // 如果当前窗口不为空则释放资源 public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged; protected virtual void OnPropertyChanged(System.ComponentModel.PropertyChangedEventArgs e) => this.PropertyChanged?.Invoke(this, e); protected virtual void SetField<T>(ref T field, T value, [System.Runtime.CompilerServices.CallerMemberName] string memberName = null) => field = value; private static void OnNextClicked(object sender, RoutedEventArgs e) => MessageBox.Show("下一个按钮被点击了！"); private static void OnPrevClicked(object sender, RoutedEventArgs e) => MessageBox.Show("上一个按钮被点击了！"); private static void OnFirstClicked(object sender, RoutedEventArgs e) => MessageBox.Show("第一个按钮被点击了！"); private static void OnLastClicked(object sender, RoutedEventArgs e) => MessageBox.Show("最后一个按钮被点击了！"); private static void OnSearchClicked(object sender, RoutedEventArgs e) => MessageBox.Show("搜索按钮被点击了！"); private static void OnResetClicked(object sender, RoutedEventArgs e) => MessageBox.Show("重置按钮被点击了！"); private static void OnCancelClicked(object sender, RoutedEventArgs e) => MessageBox.Show("取消按钮被点击了！"); private static void OnOkClicked(object sender, RoutedEventArgs e) => MessageBox.Show("确定按钮被点击了！"); private static void Main() => Application app = new Application(); app.Run((MainWindow)new Window1()); // 在AppDomain中运行程序 class Person // 实现INotifyPropertyChanged接口 Person implements INotifyPropertyChanged => this.PropertyChanged += Window1_PropertyChanged; this.PropertyChanged += Window1_PropertyChanged; private string _name; private string _description; public string Name => _name; set => SetField(ref _name, value); public string Description => _description; set => SetField(ref _description, value); public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged; protected virtual void OnPropertyChanged([System.Runtime.CompilerServices.CallerMemberName] string propertyName = null) => this.PropertyChanged?.Invoke(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName)); private static void OnNextClicked(object sender, RoutedEventArgs e) => MessageBox.Show("下一个按钮被点击了！"); private static void OnPrevClicked(object sender, RoutedEventArgs e) => MessageBox.Show("上一个按钮被点击了！"); private static void OnFirstClicked(object sender, RoutedEventArgs e) => MessageBox.Show("第一个按钮被点击了！"); private static void OnLastClicked(object sender, RoutedEventArgs e) => MessageBox.Show("最后一个按钮被点击了！"); private static void OnSearchClicked(object sender, RoutedEventArgs e) => MessageBox.Show("搜索按钮被点击了！"); private static void OnResetClicked(object sender, RoutedEventArgs e) => MessageBox.Show("重置按钮被点击了！"); private static void OnCancelClicked(object sender, RoutedEventArgs e) => MessageBox.Show("取消按钮被点击了！"); private static void OnOkClicked(object sender, RoutedEventArgs e) => MessageBox.Show("确定按钮被点击了！"); private static void Main() => Application app = new Application(); app.Run((MainWindow)new Window1()); // 在AppDomain中运行程序 class Window1: Window, INotifyPropertyChanged {