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在这个例子中我的按钮的IsEnabled属性绑定到所选行的同一控制属性“本地”电网的财产,它工作得很好:WPF数据绑定到
<Button DockPanel.Dock="Bottom" Width="100" Height="100" IsEnabled="{Binding ElementName=dataGridRestore , Path=SelectedItem.Local}"></Button>
<my:DataGrid x:Name="dataGridRestore"
ItemsSource="{Binding}"
>
<my:DataGrid.ContextMenu>
<ContextMenu Name="restoreCntextMenu">
<MenuItem Header="Open" />
</ContextMenu>
</my:DataGrid.ContextMenu>
<my:DataGridCheckBoxColumn Header="Local" Binding="{Binding Local}" />
</my:DataGrid>
现在,当我将按钮从网格外部移动到网格的上下文菜单中,我的绑定不起作用。为什么是这个,我该如何解决它?
<my:DataGrid x:Name="dataGridRestore"
ItemsSource="{Binding}"
>
<my:DataGrid.ContextMenu>
<ContextMenu Name="restoreCntextMenu">
<MenuItem Header="Open" />
<Button Width="100" Height="100" IsEnabled="{Binding ElementName=dataGridRestore , Path=SelectedItem.Local}"></Button>
</ContextMenu>
</my:DataGrid.ContextMenu>
<my:DataGridCheckBoxColumn Header="Local" Binding="{Binding Local}" />
</my:DataGrid>