WPF数据网格单元格中的边距不可单击

Question

我为WPFDataGrid创建了一个自定义样式。

一件事是在每个单元格上添加一个边距
工作正常，但单击页边距时无法选择行
我不知道如何解决这个问题。

<DataGrid ItemsSource="{Binding Items}">
<DataGrid.CellStyle>
<Style TargetType="{x:Type DataGridCell}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridCell}">
<!-- Here is the margin for every cell -->
<ContentPresenter Margin="20"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</DataGrid.CellStyle>
<DataGrid.RowStyle>
<Style TargetType="{x:Type DataGridRow}">
<Setter Property="BorderThickness" Value="0 1 0 1"/>
<Setter Property="BorderBrush" Value="{x:Null}"/>
<Style.Triggers>
<!-- mouseover works fine, even for the margin -->
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="BorderBrush" Value="Orange"/>
</Trigger>
<!-- this gets not set when you click on the margin in the cell, so you think when the row highlightes you also can select it, but you cant -->
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</DataGrid.RowStyle>           
</DataGrid>

Answer 1

Margin="20"在单元格内容周围创建空白区域，该区域由于未填充任何内容而无法单击。最简单的修复方法是添加具有透明背景的边框(请参阅相关的QA｛x:Null｝与透明画笔(

<ControlTemplate TargetType="{x:Type DataGridCell}">
<!-- Here ist the margin for every cell -->
<Border Background="Transparent">
<ContentPresenter Margin="20"/>
</Border>
</ControlTemplate>