我在项目中使用了silverlight datatgrid,并在SelectAll选项的标题中使用了复选框。
在垂直滚动数据网格时,标题复选框状态随机更改,但内容复选框状态仍然正确。
如果有人遇到这个问题,请帮助我。
<control:DataGrid.RowGroupHeaderStyles>
<Style TargetType="control:DataGridRowGroupHeader">
<Setter Property="PropertyNameVisibility" Value="Collapsed" />
<Setter Property="Background" Value="LightGray" />
<Setter Property="Foreground" Value="#FF404040" />
<Setter Property="SublevelIndent" Value="15" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="control:DataGridRowGroupHeader">
<Primitives:DataGridFrozenGrid Name="Root" Background="{TemplateBinding Background}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CurrentStates">
<VisualState x:Name="Regular"/>
<VisualState x:Name="Current">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="FocusVisual" Storyboard.TargetProperty="Opacity" To="1" Duration="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Primitives:DataGridFrozenGrid.Resources>
<ControlTemplate x:Key="ToggleButtonTemplate" TargetType="ToggleButton">
<Grid Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="CollapsedArrow" Storyboard.TargetProperty="(Stroke).Color" Duration="0" To="#FF6DBDD1"/>
<ColorAnimation Storyboard.TargetName="ExpandedArrow" Storyboard.TargetProperty="(Fill).Color" Duration="0" To="#FF6DBDD1"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ColorAnimation Storyboard.TargetName="CollapsedArrow" Storyboard.TargetProperty="(Stroke).Color" Duration="0" To="#FF6DBDD1"/>
<Path Stretch="Uniform" Data="F1 M 0,0 L 0,1 L .6,.5 L 0,0 Z" Width="5" HorizontalAlignment="Center" VerticalAlignment="Center" x:Name="CollapsedArrow" Visibility="Collapsed" Stroke="#FF414345"/>
<Path Stretch="Uniform" Data="F1 M 0,1 L 1,1 L 1,0 L 0,1 Z" Width="6" HorizontalAlignment="Center" VerticalAlignment="Center" x:Name="ExpandedArrow" Fill="#FF414345"/>
</Grid>
</ControlTemplate>
</Primitives:DataGridFrozenGrid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Rectangle Grid.Column="1" Grid.ColumnSpan="5" Fill="#FFFDD234" Height="1"/>
<Rectangle Grid.Column="1" Grid.Row="1" Name="IndentSpacer" />
<ToggleButton Grid.Column="2" Grid.Row="1" Name="ExpanderButton" Height="15" Width="15" IsTabStop="False" Template="{StaticResource ToggleButtonTemplate}" Margin="2,0,0,0"/>
<StackPanel Grid.Column="3" Grid.Row="1" Orientation="Horizontal" VerticalAlignment="Center" Margin="0,1,0,1">
<CheckBox Tag="{Binding}" Name="headerCheck" Click="headerCheck_Click" HorizontalAlignment="Left" />
</StackPanel>
<Rectangle Grid.Column="1" Grid.ColumnSpan="5" Fill="#FF4F54DA" Height="1" Grid.Row="2"/>
<Rectangle Name="FocusVisual" Grid.Column="1" Grid.ColumnSpan="4" Grid.RowSpan="3" Stroke="#FF6DB112" StrokeThickness="1" HorizontalAlignment="Stretch"
VerticalAlignment="Stretch" IsHitTestVisible="false" Opacity="0" />
<Primitives:DataGridRowHeader Name="RowHeader" Grid.RowSpan="3" Primitives:DataGridFrozenGrid.IsFrozen="True" />
</Primitives:DataGridFrozenGrid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</control:DataGrid.RowGroupHeaderStyles>
答案 0 :(得分:0)
您有标题复选框绑定到当前项目,滚动它时更改。除非您使用setter更改ItemsSource集合中的所有值,否则我不会将此复选框绑定到任何内容。在这种情况下,请确保没有其他任何东西正在改变它所绑定的属性的值。
答案 1 :(得分:0)
这是由于Silverlight的虚拟化使用。
滚动时我遇到了这个问题,网格中的数据在显示方面发生了变化。但实际上它是一样的。事实上,在UI上,silverlight显示错误,因为它在渲染时使用相同的控件。
最好的方法是在datagarid的LoadingRow和UnloadingRow事件中处理你的逻辑。
我在以下链接上发布了一些详细信息: