[英]C# WPF - Alternate blank row in datagrid
從數據庫中獲取數據時,我想在數據網格上添加備用空白行。 (盡管使用了AlternationCount="2" AlternatingRowBackground="LightGray"
,它確實有助於在視覺上分隔行與行,但如果行與行之間的數據會更好,它將具有空白行以具有更好的視覺體驗)
謝謝
通過添加一些廢數據來更改視覺體驗不是一個好主意。 可能您只需要修改數據網格行的樣式即可添加一些額外的空間,您可以根據需要填充這些空間。
例如,向您的資源添加新樣式:
<Style x:Key="MyDataGridRowStyle" TargetType="{x:Type DataGridRow}">
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="Validation.ErrorTemplate" Value="{x:Null}"/>
<Setter Property="ValidationErrorTemplate">
<Setter.Value>
<ControlTemplate>
<TextBlock Foreground="Red" Margin="2,0,0,0" Text="!" VerticalAlignment="Center"/>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridRow}">
<Border x:Name="DGR_Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
<SelectiveScrollingGrid>
<SelectiveScrollingGrid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</SelectiveScrollingGrid.ColumnDefinitions>
<SelectiveScrollingGrid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
<RowDefinition Name="ExtraRow" Height="20"/>
</SelectiveScrollingGrid.RowDefinitions>
<DataGridCellsPresenter Grid.Column="1" ItemsPanel="{TemplateBinding ItemsPanel}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
<DataGridDetailsPresenter Grid.Column="1" Grid.Row="1" SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding AreRowDetailsFrozen, ConverterParameter={x:Static SelectiveScrollingOrientation.Vertical}, Converter={x:Static DataGrid.RowDetailsScrollingConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" Visibility="{TemplateBinding DetailsVisibility}"/>
<DataGridRowHeader Grid.RowSpan="2" SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" Visibility="{Binding HeadersVisibility, ConverterParameter={x:Static DataGridHeadersVisibility.Row}, Converter={x:Static DataGrid.HeadersVisibilityConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
<TextBlock Grid.Row="2" Grid.Column="1" Text=" *** Extra space *** " FontSize="8" VerticalAlignment="Center" Margin="100,0"/>
</SelectiveScrollingGrid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsNewItem" Value="True">
<Setter Property="Margin" Value="{Binding NewItemMargin, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
</Trigger>
</Style.Triggers>
</Style>
然后在您的DataGrid中使用它:
<DataGrid RowStyle="{StaticResource MyDataGridRowStyle}">
您將得到類似:
添加:和模板
<ControlTemplate TargetType="{x:Type DataGridRow}">
<Border x:Name="DGR_Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
<SelectiveScrollingGrid>
<SelectiveScrollingGrid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</SelectiveScrollingGrid.ColumnDefinitions>
<SelectiveScrollingGrid.RowDefinitions>
<RowDefinition Name="ExtraRow1" Height="10"/>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
<RowDefinition Name="ExtraRow2" Height="10"/>
</SelectiveScrollingGrid.RowDefinitions>
<Border Grid.Row="0" Grid.Column="1" BorderThickness="0,0,0,1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" BorderBrush="Black"/>
<DataGridCellsPresenter Grid.Column="1" Grid.Row="1" ItemsPanel="{TemplateBinding ItemsPanel}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
<DataGridDetailsPresenter Grid.Column="1" Grid.Row="2" SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding AreRowDetailsFrozen, ConverterParameter={x:Static SelectiveScrollingOrientation.Vertical}, Converter={x:Static DataGrid.RowDetailsScrollingConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" Visibility="{TemplateBinding DetailsVisibility}"/>
<DataGridRowHeader Grid.RowSpan="4" SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" Visibility="{Binding HeadersVisibility, ConverterParameter={x:Static DataGridHeadersVisibility.Row}, Converter={x:Static DataGrid.HeadersVisibilityConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
</SelectiveScrollingGrid>
</Border>
</ControlTemplate>
看起來像
如果您將集合與您的datagrid綁定,則將不可能,因為datagrid是通過查看其項目的來源來填充的。 我有一個解決方案,但我不認為會受到贊賞。
在您的集合中,在每個交替索引處輸入一個空對象。 它將在datagrid中創建一個空行。
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