您可以继承 DataGrid 并为命令添加一个属性,例如 MyCommand。然后您可以在每个 DataGrid 中绑定该 ICommand 并使用 MyCommand 作为 RowStyle 绑定中的路径
数据网格
<local:CommandDataGrid RowStyle="{StaticResource SomeKey}"
MyCommand="{Binding CommandName1}">
<!-- ... -->
<local:CommandDataGrid RowStyle="{StaticResource SomeKey}"
MyCommand="{Binding CommandName2}">
行样式
<Style x:Key="SomeKey" TargetType="{x:Type DataGridRow}">
<Setter Property="vm:DataGridBehavior.OnDoubleClick"
Value="{Binding Path=MyCommand,
RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
</Style>
CommandDataGrid
public class CommandDataGrid : DataGrid
{
public static readonly DependencyProperty MyCommandProperty =
DependencyProperty.Register("MyCommand",
typeof(ICommand),
typeof(CommandDataGrid),
new UIPropertyMetadata(null));
public ICommand MyCommand
{
get { return (ICommand)GetValue(MyCommandProperty); }
set { SetValue(MyCommandProperty, value); }
}
}
或者,您可以创建一个附加属性,例如您使用的 MyCommand
数据网格
<DataGrid vm:DataGridBehavior.MyCommand="{Binding CommandName}"
行样式
<Style x:Key="SomeKey" TargetType="{x:Type DataGridRow}">
<Setter Property="vm:DataGridBehavior.OnDoubleClick"
Value="{Binding Path=(vm:DataGridBehavior.MyCommand),
RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
</Style>
我的命令属性
public static readonly DependencyProperty MyCommandProperty =
DependencyProperty.RegisterAttached("MyCommand",
typeof(ICommand),
typeof(DataGridBehavior),
new UIPropertyMetadata(null));
public static void SetMyCommand(DependencyObject element, ICommand value)
{
element.SetValue(MyCommandProperty, value);
}
public static ICommand GetMyCommand(DependencyObject element)
{
return (ICommand)element.GetValue(MyCommandProperty);
}