感谢您阅读我的问题！
我有自定义DataGrid RowGroupHeader的问题，情况是：
我需要一种控制DataGrid RowGroupHeader的方法，因为我想在其中显示一些数据绑定值。这些值将在运行时生成，因此需要在运行时生成RowGroupHeaderStyle并将其添加到DataGrid的RowGroupHeaderStyles属性中（可能使用XamlReader.Load）。
此外，RowGroupHeader中数据绑定值的位置应与DataGrid中的相应列对齐。
我已经设法使用这篇文章MS Forum创建了一个工作模板，但我没有好运定位数据绑定元素，在我的案例中是TextBlock，以正确对齐给定的DataGrid列。
有什么建议吗？
非常感谢
答案 0 :(得分：0)
这不是一件容易的事，但经过一些广泛的谷歌搜索和拼凑其他人的经历后，我想出了这个对我来说很好的工作
string loadString = @"<Style xmlns=""http://schemas.microsoft.com/client/2007"" xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml""
xmlns:localprimitives=""clr-namespace:System.Windows.Controls.Primitives;assembly=System.Windows.Controls.Data""
xmlns:vsm=""clr-namespace:System.Windows;assembly=System.Windows""
xmlns:data=""clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"" TargetType=""data:DataGridRowGroupHeader"">
<Setter Property=""Cursor"" Value=""Arrow"" />
<Setter Property=""IsTabStop"" Value=""False"" />
<Setter Property=""Background"" Value=""#FFE4E8EA"" />
<Setter Property=""Height"" Value=""20""/>
<Setter Property=""Template"">
<Setter.Value>
<ControlTemplate TargetType=""data:DataGridRowGroupHeader"">
<localprimitives:DataGridFrozenGrid Name=""Root"" Background=""{TemplateBinding Background}"">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name=""CurrentStates"">
<vsm:VisualState x:Name=""Regular""/>
<vsm:VisualState x:Name=""Current"">
<Storyboard>
<DoubleAnimation Storyboard.TargetName=""FocusVisual"" Storyboard.TargetProperty=""Opacity"" To=""1"" Duration=""0"" />
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<localprimitives:DataGridFrozenGrid.Resources>
</localprimitives:DataGridFrozenGrid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=""Auto"" />
<ColumnDefinition Width=""Auto"" />
<ColumnDefinition Width=""Auto"" />
<ColumnDefinition Width=""Auto"" />
<ColumnDefinition Width=""Auto"" />
<ColumnDefinition Width=""Auto"" />"
此时我在网格中有一些动态列，所以我将它们添加为Grid.ColumnDefinitions到目前为止，但如果你的数据网格是静态的，那么你输入正确数量的列。
+ colStr1 +
@"</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height=""Auto""/>
<RowDefinition/>
<RowDefinition Height=""Auto""/>
</Grid.RowDefinitions>
<StackPanel x:Name=""CustomRGHStackPanel"" Orientation=""Horizontal"" Tag=" + _tagNo + @" Grid.Column=""3"" Grid.Row=""1"" VerticalAlignment=""Center"" Margin=""0,1,0,1"">
<StackPanel.Resources>
<Style TargetType=""data:DataGridCell"">
<Setter Property=""Background"" Value=""Transparent"" />
<Setter Property=""HorizontalContentAlignment"" Value=""Stretch"" />
<Setter Property=""VerticalContentAlignment"" Value=""Stretch"" />
<Setter Property=""IsTabStop"" Value=""False"" />
<Setter Property=""FontWeight"" Value=""Black""/>
<Setter Property=""Template"">
<Setter.Value>
<ControlTemplate TargetType=""data:DataGridCell"">
<Grid Margin=""1,-1,-1,0"" >
<Grid Name=""Root"" Background=""{TemplateBinding Background}"" Margin=""5,0,0,0"">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name=""CurrentStates"">
<vsm:VisualState x:Name=""Regular"" />
<vsm:VisualState x:Name=""Current"">
<Storyboard>
<DoubleAnimation Storyboard.TargetName=""FocusVisual"" Storyboard.TargetProperty=""Opacity"" To=""1"" Duration=""0"" />
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
<vsm:VisualStateGroup x:Name=""ValidationStates"">
<vsm:VisualState x:Name=""Valid""/>
<vsm:VisualState x:Name=""Invalid"">
<Storyboard>
<DoubleAnimation Storyboard.TargetName=""InvalidVisualElement"" Storyboard.TargetProperty=""Opacity"" Duration=""0"" To=""1""/>
<ColorAnimation Storyboard.TargetName=""FocusVisual"" Storyboard.TargetProperty=""(Fill).Color"" Duration=""0"" To=""#FFFFFFFF""/>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width=""Auto"" />
</Grid.ColumnDefinitions>
<Rectangle Name=""FocusVisual"" Stroke=""#FF6DBDD1"" StrokeThickness=""1"" Fill=""#66FFFFFF"" HorizontalAlignment=""Stretch""
VerticalAlignment=""Stretch"" IsHitTestVisible=""false"" Opacity=""0"" />
<ContentPresenter
Content=""{TemplateBinding Content}""
ContentTemplate=""{TemplateBinding ContentTemplate}""
HorizontalAlignment=""{TemplateBinding HorizontalContentAlignment}""
VerticalAlignment=""{TemplateBinding VerticalContentAlignment}""
Margin=""{TemplateBinding Padding}"" />
<Rectangle x:Name=""InvalidVisualElement"" IsHitTestVisible=""False"" StrokeThickness=""1"" Stroke=""#FFDC000C"" HorizontalAlignment=""Stretch"" VerticalAlignment=""Stretch"" Opacity=""0""/>
<Rectangle Name=""q1q"" Fill=""#c9caca"" Grid.Column=""1"" Margin=""1,0,1,0"" HorizontalAlignment=""Right"" VerticalAlignment=""Stretch"" Width=""0"" />
</Grid>
<Rectangle Name=""qq"" Fill=""#c9caca"" Margin=""1,0,1,0"" HorizontalAlignment=""Left"" VerticalAlignment=""Stretch"" Width=""1"" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</StackPanel.Resources>
<data:DataGridCell Content=""{Binding Name}""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell HorizontalContentAlignment=""Left"" Margin=""7,0,0,0"" Content=""{Binding Converter={StaticResource myConverter}, ConverterParameter=TotalScore}""/>" + colStr2 +
@"</StackPanel>
<Rectangle Grid.Column=""1"" Grid.ColumnSpan=""5"" Fill=""#FFFFFFFF"" Height=""1""/>
<Rectangle Grid.Column=""1"" Grid.Row=""1"" Name=""IndentSpacer"" />
<ToggleButton Grid.Column=""2"" Grid.Row=""1"" Name=""ExpanderButton"" Height=""15"" Width=""15"" Margin=""2,0,0,0"">
<ToggleButton.Template>
<ControlTemplate TargetType=""ToggleButton"">
<Grid Background=""Transparent"">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name=""CommonStates"">
<vsm:VisualState x:Name=""Normal""/>
<vsm: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>
</vsm:VisualState>
<vsm:VisualState x:Name=""Pressed"">
<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>
</vsm:VisualState>
<vsm:VisualState x:Name=""Disabled"">
<Storyboard>
<DoubleAnimation Duration=""0"" Storyboard.TargetName=""CollapsedArrow"" Storyboard.TargetProperty=""Opacity"" To="".5""/>
<DoubleAnimation Duration=""0"" Storyboard.TargetName=""ExpandedArrow"" Storyboard.TargetProperty=""Opacity"" To="".5""/>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
<vsm:VisualStateGroup x:Name=""CheckStates"">
<vsm:VisualState x:Name=""Checked"" />
<vsm:VisualState x:Name=""Unchecked"">
<Storyboard>
<ObjectAnimationUsingKeyFrames Duration=""0"" Storyboard.TargetName=""CollapsedArrow"" Storyboard.TargetProperty=""Visibility"">
<DiscreteObjectKeyFrame KeyTime=""0"" Value=""Visible""/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Duration=""0"" Storyboard.TargetName=""ExpandedArrow"" Storyboard.TargetProperty=""Visibility"">
<DiscreteObjectKeyFrame KeyTime=""0"" Value=""Collapsed""/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<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>
</ToggleButton.Template>
</ToggleButton>
<Rectangle Grid.Column=""1"" Grid.ColumnSpan=""5"" Fill=""#FFD3D3D3"" Height=""1"" Grid.Row=""2""/>
<Rectangle Name=""FocusVisual"" Grid.Column=""1"" Grid.ColumnSpan=""4"" Grid.RowSpan=""3"" Stroke=""#FF6DBDD1"" StrokeThickness=""1"" HorizontalAlignment=""Stretch""
VerticalAlignment=""Stretch"" IsHitTestVisible=""false"" Opacity=""0"" />
<localprimitives:DataGridRowHeader Name=""RowHeader"" Grid.RowSpan=""3"" localprimitives:DataGridFrozenGrid.IsFrozen=""True""/>
</localprimitives:DataGridFrozenGrid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>";
这是你的单元格内容的来源，我又有一些动态列，所以我需要动态添加单元格（如果你的网格是静态的，不需要这样做）
<data:DataGridCell Content=""{Binding Name}""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell Content=""""/>
<data:DataGridCell HorizontalContentAlignment=""Left"" Margin=""7,0,0,0"" Content=""{Binding Converter={StaticResource myConverter}, ConverterParameter=TotalScore}""/>" + colStr2 +
就是这样，是的，我同意这不是一项微不足道的工作，但它可以在您需要时为您提供定制风格！随意评论！