DataGridTemplateColumn 的编辑行为
Edit behaviour of DataGridTemplateColumn
我的 DataGrid
有几个 DataGridTemplateColumn
是这样的:
<local:DataGridSyntaxColumn MinWidth="100" x:Name="cVariantNew1" Width="250">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<local:SyntaxTextBlock HorizontalAlignment="Left" SyntaxType="VARIANT" Value="{Binding Variants[0].Name, Mode=OneWay}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<TextBox Text="{Binding Variants[0].Name, Mode=TwoWay, UpdateSourceTrigger=LostFocus}" Style="{StaticResource GridTextBox}" />
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</local:DataGridSyntaxColumn>
DataGridSyntaxColumn
只是为了设置焦点:
public class DataGridSyntaxColumn : DataGridTemplateColumn
{
protected override object PrepareCellForEdit(FrameworkElement editingElement,
RoutedEventArgs editingEventArgs)
{
editingElement.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return base.PrepareCellForEdit(editingElement, editingEventArgs);
}
}
这工作正常,但编辑模式不像往常那样运行 DataGridTextColumn
例如:
- 在
DataGridTextColumn
中双击将光标设置到单击的位置,或者如果单击白色 space 它会选择单元格的全部内容
- 开始打字不进入编辑模式
有没有办法实现完全相同的行为?
您可以尝试从 DataGridTextColumn
继承并简单地覆盖 GenerateElement
方法:
public class DataGridSyntaxColumn : DataGridTextColumn
{
protected override FrameworkElement GenerateElement(DataGridCell cell, object dataItem)
{
SyntaxTextBlock textBlock = new SyntaxTextBlock()
{
HorizontalAlignment = HorizontalAlignment.Left,
SyntaxType = VARIANT
};
BindingBase binding = Binding;
if (binding != null)
BindingOperations.SetBinding(textBlock, TextBlock.TextProperty, binding);
else
BindingOperations.ClearBinding(textBlock, TextBlock.TextProperty);
return textBlock;
}
}
<local:DataGridSyntaxColumn MinWidth="100" Binding="{Binding Variants[0].Name}" Width="250" />
我的 DataGrid
有几个 DataGridTemplateColumn
是这样的:
<local:DataGridSyntaxColumn MinWidth="100" x:Name="cVariantNew1" Width="250">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<local:SyntaxTextBlock HorizontalAlignment="Left" SyntaxType="VARIANT" Value="{Binding Variants[0].Name, Mode=OneWay}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<TextBox Text="{Binding Variants[0].Name, Mode=TwoWay, UpdateSourceTrigger=LostFocus}" Style="{StaticResource GridTextBox}" />
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</local:DataGridSyntaxColumn>
DataGridSyntaxColumn
只是为了设置焦点:
public class DataGridSyntaxColumn : DataGridTemplateColumn
{
protected override object PrepareCellForEdit(FrameworkElement editingElement,
RoutedEventArgs editingEventArgs)
{
editingElement.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return base.PrepareCellForEdit(editingElement, editingEventArgs);
}
}
这工作正常,但编辑模式不像往常那样运行 DataGridTextColumn
例如:
- 在
DataGridTextColumn
中双击将光标设置到单击的位置,或者如果单击白色 space 它会选择单元格的全部内容 - 开始打字不进入编辑模式
有没有办法实现完全相同的行为?
您可以尝试从 DataGridTextColumn
继承并简单地覆盖 GenerateElement
方法:
public class DataGridSyntaxColumn : DataGridTextColumn
{
protected override FrameworkElement GenerateElement(DataGridCell cell, object dataItem)
{
SyntaxTextBlock textBlock = new SyntaxTextBlock()
{
HorizontalAlignment = HorizontalAlignment.Left,
SyntaxType = VARIANT
};
BindingBase binding = Binding;
if (binding != null)
BindingOperations.SetBinding(textBlock, TextBlock.TextProperty, binding);
else
BindingOperations.ClearBinding(textBlock, TextBlock.TextProperty);
return textBlock;
}
}
<local:DataGridSyntaxColumn MinWidth="100" Binding="{Binding Variants[0].Name}" Width="250" />