我想设置此Datagrid的左上角元素,它选择所有行,但我不知道如何。有没有人有我的例子,或者有谁知道我需要设计哪个元素?
我的Datagrid来自WPF工具包btw。
答案 0 :(得分:2)
首先,我建议您更新到.net 4.0,以便能够使用WPF dataGrid,而无需安装WPFToolkit。
现在关于你的问题,你必须为你的数据网格设置一个样式,并在样式,模板或资源中放置这种代码:
<Style TargetType="{x:Type Button}" x:Key="{ComponentResourceKey ResourceId=DataGridSelectAllButtonStyle, TypeInTargetAssembly={x:Type DataGrid}}">
<EventSetter Event="PreviewMouseDown" Handler="SelectAllButtonPreviewMouseDownHandler" />
<EventSetter Event="PreviewMouseUp" Handler="SelectAllButtonPreviewMouseUpHandler" />
<Setter Property="ToolTip" Value="{Binding SelectAllButtonToolTip, RelativeSource={RelativeSource AncestorType=DataGrid}}" />
<Setter Property="Content" Value="{Binding SelectAllButtonContent, RelativeSource={RelativeSource AncestorType=DataGrid}}" />
<Setter Property="Focusable" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid Background="Transparent" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Polygon Name="Arrow"
HorizontalAlignment="Right"
VerticalAlignment="Bottom"
Margin="0,0,3,3"
Points="0,9 9,9 9,0"
Fill="Black"
Opacity="0.15"
Visibility="Collapsed"/>
<ContentPresenter Name="ContentSite" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="Content" Value="{x:Null}">
<Setter TargetName="ContentSite" Property="Visibility" Value="Collapsed"/>
<Setter TargetName="Arrow" Property="Visibility" Value="Visible"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="Arrow" Property="Opacity" Value="0.75"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
(这是我的一些代码的示例,我放在MyDataGrid.Resources中,MyDataGrid是从DataGrid派生的类)
编辑:重要部分当然是按钮样式声明器中的x:Key="{ComponentResourceKey ResourceId=DataGridSelectAllButtonStyle, TypeInTargetAssembly={x:Type DataGrid}}"
。