我有名为TabItem的自定义ContentControl
public class TabItem : ContentControl
我已将ContentTemplate设置为来自资源字典的动态资源
<TabItem Header="Search" Content="{Binding Path=SearchRibbon}" ContentTemplate="{DynamicResource SearchRibbonTemplate}" />
使用这种方法我正在利用MVVM设计模式，并且Content属性成功地绑定到viewmodel ...并且程序成功构建并运行但没有来自datatemplate的内容模板应该引入的内容。
<DataTemplate x:Key="SearchRibbonTemplate">
<ItemsControl ItemsSource="{Binding}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<TabGroupBox Header="{Binding Path=DisplayName}" Width="100">
<TabButton Width="100" Icon="{Binding Path=TemplateResource}" LargeIcon="{Binding Path=TemplateResource}" Command="{Binding Path=Commands}" />
</TabGroupBox>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</DataTemplate>
如果我按原样使用内容控件，这种方法一直有效。为什么自定义内容控件不能与ContentTemplate属性一起使用？
干杯。
修改
<Style x:Key="RibbonTabItemStyle" TargetType="{x:Type Ribbon_Framework:TabItem}">
<Style.Triggers>
<Trigger Property="Group" Value="{x:Null}">
<Setter Property="BorderBrush" Value="{StaticResource RibbonTopBorderBrush}" />
</Trigger>
<Trigger Property="Selector.IsSelected" Value="False">
<Setter Property="Foreground" Value="{StaticResource TabItemFontBrush}" />
</Trigger>
</Style.Triggers>
<Setter Property="HorizontalAlignment" Value="Left" />
<Setter Property="VerticalAlignment" Value="Top" />
<Setter Property="Height" Value="31" />
<Setter Property="IsMinimized" Value="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Ribbon_Framework:RibbonTabControl}}, Path=IsMinimized, Mode=OneWay, FallbackValue=False}" />
<Setter Property="IsOpen" Value="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Ribbon_Framework:RibbonTabControl}}, Path=IsDropDownOpen, Mode=OneWay, FallbackValue=True}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Ribbon_Framework:TabItem}">
<Grid x:Name="grid" Background="#00000000" Height="24" VerticalAlignment="Top" Margin="0,7,0,0">
<Border x:Name="border3" Margin="2,0,0,1" BorderThickness="1,0" Grid.ColumnSpan="2">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#CCFFFFFF" Offset="0" />
<GradientStop Offset="1" Color="#7FFFFFFF" />
</LinearGradientBrush>
</Border.BorderBrush>
<Border x:Name="border4" BorderBrush="{Binding Group.BorderBrush, RelativeSource={RelativeSource TemplatedParent}}" BorderThickness="1,0">
<Border.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="Black" Offset="0" />
<GradientStop Color="#00000000" Offset="0.981" />
</LinearGradientBrush>
</Border.OpacityMask>
<Border Background="{Binding Group.Background, RelativeSource={RelativeSource TemplatedParent}}" BorderThickness="0" Margin="0">
<Border.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#59000000" Offset="0" />
<GradientStop Color="#00000000" Offset="1" />
</LinearGradientBrush>
</Border.OpacityMask>
<Rectangle x:Name="rectangle4" Fill="#3FD2D2D2" StrokeThickness="0">
<Rectangle.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#7F000000" Offset="0" />
<GradientStop Color="#00000000" Offset="1" />
</LinearGradientBrush>
</Rectangle.OpacityMask>
</Rectangle>
</Border>
</Border>
</Border>
<Grid x:Name="selectedGrid" Visibility="Collapsed" Margin="2,0,0,0" Grid.ColumnSpan="1">
<Rectangle x:Name="rectangle" Fill="{StaticResource ActiveTabBackgroundBrush}" Stroke="{x:Null}" StrokeThickness="0" Margin="0" VerticalAlignment="Bottom" Height="1" />
<Rectangle x:Name="rectangle1" Fill="{StaticResource ActiveTabBackgroundBrush}" Stroke="{x:Null}" StrokeThickness="0" Margin="1.8,0" VerticalAlignment="Bottom" Height="1.2" />
<Rectangle x:Name="rectangle2" Fill="{StaticResource ActiveTabBackgroundBrush}" Stroke="{x:Null}" StrokeThickness="0" Margin="2,0" VerticalAlignment="Bottom" Height="2" />
<Border x:Name="border" Margin="1,0,1,2" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{StaticResource ActiveTabBackgroundBrush}">
<Border x:Name="border_Copy3" Margin="0" BorderThickness="1,1,1,0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{x:Null}" BorderBrush="{StaticResource ActiveTabBackgroundBrush}">
<Border x:Name="border_Copy4" Margin="0,0,-2,-1" BorderThickness="0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{Binding Group.Background, RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{x:Null}">
<Border.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#3F000000" Offset="0" />
<GradientStop Color="#00000000" Offset="0.59" />
</LinearGradientBrush>
</Border.OpacityMask>
</Border>
</Border>
</Border>
<Border x:Name="border1" HorizontalAlignment="Left" Margin="0" VerticalAlignment="Bottom" Width="2" Height="2" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,0,1,1" CornerRadius="0,0,2,0" />
<Border x:Name="border2" HorizontalAlignment="Right" Margin="0" VerticalAlignment="Bottom" Width="2" Height="2" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,0,0,1" CornerRadius="0,0,0,2" />
<Rectangle x:Name="rectangle3" StrokeThickness="0" Margin="7,-7,7,0" VerticalAlignment="Top" Height="14" IsHitTestVisible="False">
<Rectangle.Fill>
<RadialGradientBrush Center="0.498,0.501" GradientOrigin="0.498,0.501" RadiusY="0.464">
<GradientStop Color="#7FFFFFFF" Offset="0" />
<GradientStop Offset="1" />
</RadialGradientBrush>
</Rectangle.Fill>
</Rectangle>
</Grid>
<Grid x:Name="hoverGrid" Margin="2,0,0,0" Visibility="Collapsed" Grid.ColumnSpan="1">
<Border x:Name="border_Copy" Margin="1,0,1,1" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{x:Null}">
<Border.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#CC000000" Offset="0" />
<GradientStop Color="#F7FFFFFF" Offset="0.985" />
</LinearGradientBrush>
</Border.OpacityMask>
<Border x:Name="border_Copy1" Margin="0" BorderBrush="{StaticResource ActiveTabBackgroundBrush}" BorderThickness="1,1,1,0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{x:Null}">
<Border.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#CCFFFFFF" Offset="0" />
<GradientStop Color="#F7FFFFFF" Offset="1" />
</LinearGradientBrush>
</Border.OpacityMask>
<Border x:Name="border_Copy2" Margin="0" BorderBrush="{x:Null}" BorderThickness="0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{StaticResource ActiveTabBackgroundBrush}">
<Border.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#7FFFFFFF" Offset="0.004" />
<GradientStop Offset="0.5" />
</LinearGradientBrush>
</Border.OpacityMask>
</Border>
</Border>
</Border>
</Grid>
<Grid x:Name="focusedGrid" Margin="2,0,0,0" Visibility="Collapsed" Grid.ColumnSpan="1">
<Grid.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="White" Offset="0" />
<GradientStop Offset="1" Color="#19FFFFFF" />
</LinearGradientBrush>
</Grid.OpacityMask>
<Border x:Name="border_Copy5" Margin="1,0,1,1" BorderThickness="1,1,1,0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{StaticResource ButtonHoverOuterBackgroundBrush}" BorderBrush="{StaticResource ButtonHoverOuterBorderBrush}">
<Border x:Name="border_Copy6" Margin="0" BorderBrush="{StaticResource ButtonHoverInnerBorderBrush}" BorderThickness="1,1,1,0" VerticalAlignment="Stretch" CornerRadius="2,2,0,0" Background="{StaticResource ButtonHoverInnerBackgroundBrush}" />
</Border>
</Grid>
<Border x:Name="PART_ContentContainer" HorizontalAlignment="Stretch" Margin="6,2,4,2" VerticalAlignment="Stretch" Padding="15,0,0,0" Grid.ColumnSpan="1">
<Label x:Name="contentPresenter" AutomationProperties.Name="{TemplateBinding Header}" AutomationProperties.AutomationId="{TemplateBinding Name}" Content="{TemplateBinding Header}" Margin="0, -3, 0,0" HorizontalAlignment="Center" VerticalAlignment="Center" Height="Auto" />
</Border>
<Grid x:Name="separatorGrid" Margin="0" Visibility="Collapsed" HorizontalAlignment="Right" Width="2" Grid.Column="1">
<Rectangle x:Name="separatorRectangle1" Fill="{StaticResource RibbonTopBorderBrush}" Stroke="{StaticResource RibbonTopBorderBrush}" Margin="0,0,1,0" HorizontalAlignment="Right" Width="1" Opacity="1" Visibility="Visible">
<Rectangle.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#00000000" Offset="0" />
<GradientStop Color="#E5FFFFFF" Offset="0.382" />
</LinearGradientBrush>
</Rectangle.OpacityMask>
</Rectangle>
<Rectangle x:Name="separatorRectangle2" Fill="{StaticResource ActiveTabBackgroundBrush}" Stroke="{StaticResource ActiveTabBackgroundBrush}" HorizontalAlignment="Right" Margin="0" Width="1" Opacity="1" Visibility="Visible">
<Rectangle.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#00000000" Offset="0" />
<GradientStop Color="#BFFFFFFF" Offset="0.329" />
</LinearGradientBrush>
</Rectangle.OpacityMask>
</Rectangle>
</Grid>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" TargetName="contentPresenter" Value="0.5" />
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="HasRightGroupBorder" Value="False" />
<Condition Property="HasLeftGroupBorder" Value="True" />
</MultiTrigger.Conditions>
<Setter Property="BorderThickness" TargetName="border3" Value="1,0,0,0" />
<Setter Property="BorderThickness" TargetName="border4" Value="1,0,0,0" />
<Setter Property="Margin" TargetName="rectangle4" Value="0" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="HasLeftGroupBorder" Value="False" />
<Condition Property="HasRightGroupBorder" Value="True" />
</MultiTrigger.Conditions>
<Setter Property="BorderThickness" TargetName="border4" Value="0,0,1,0" />
<Setter Property="BorderThickness" TargetName="border3" Value="0,0,1,0" />
<Setter Property="Margin" TargetName="rectangle4" Value="0" />
<Setter Property="Margin" TargetName="border3" Value="0,0,0,1" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="HasLeftGroupBorder" Value="False" />
<Condition Property="HasRightGroupBorder" Value="False" />
</MultiTrigger.Conditions>
<Setter Property="BorderThickness" TargetName="border4" Value="0,0,0,0" />
<Setter Property="BorderThickness" TargetName="border3" Value="0,0,0,0" />
<Setter Property="Margin" TargetName="rectangle4" Value="0" />
<Setter Property="Margin" TargetName="border3" Value="0,0,0,1" />
</MultiTrigger>
<Trigger Property="Group" Value="{x:Null}">
<Setter Property="Visibility" TargetName="border3" Value="Collapsed" />
<Setter Property="Margin" TargetName="separatorGrid" Value="-1,0,0,1" />
<Setter Property="Visibility" TargetName="border_Copy3" Value="Collapsed" />
<Setter Property="Visibility" TargetName="rectangle3" Value="Collapsed" />
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelected" Value="True" />
<Condition Property="IsMinimized" Value="False" />
</MultiTrigger.Conditions>
<Setter Property="Visibility" TargetName="selectedGrid" Value="Visible" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True" />
<Condition Property="Selector.IsSelected" Value="False" />
<Condition Property="IsMinimized" Value="False" />
</MultiTrigger.Conditions>
<Setter Property="Visibility" TargetName="hoverGrid" Value="Visible" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True" />
<Condition Property="IsMinimized" Value="True" />
<Condition Property="IsOpen" Value="False" />
</MultiTrigger.Conditions>
<Setter Property="Visibility" TargetName="hoverGrid" Value="Visible" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelected" Value="True" />
<Condition Property="IsMinimized" Value="True" />
<Condition Property="IsOpen" Value="True" />
</MultiTrigger.Conditions>
<Setter Property="Visibility" TargetName="hoverGrid" Value="Visible" />
<Setter Property="Background" TargetName="grid" Value="#00000000" />
</MultiTrigger>
<Trigger Property="IsSeparatorVisible" Value="True">
<Setter Property="Visibility" TargetName="separatorGrid" Value="Visible" />
<Setter Property="Margin" TargetName="PART_ContentContainer" Value="6,2" />
<Setter Property="Margin" TargetName="hoverGrid" Value="2,0" />
<Setter Property="Margin" TargetName="selectedGrid" Value="2,0" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="IsTabStop" Value="False" />
<Setter Property="Indent" Value="12" />
<Setter Property="Foreground" Value="{StaticResource TabItemSelectedFontBrush}" />
<Setter Property="FontFamily" Value="{StaticResource DefaultFontFamily}" />
<Setter Property="FontSize" Value="{StaticResource DefaultFontSize}" />
<Setter Property="Margin" Value="0" />
<Setter Property="BorderBrush" Value="{Binding Group.BorderBrush, RelativeSource={RelativeSource Self}}" />
<Setter Property="FocusVisualStyle" Value="{StaticResource ControlStyleEmptyFocus}" />
</Style>
答案 0 :(得分：0)
我的猜测是你没有为Themes/Generic.xaml中的控件定义一个默认样式，它应该将控件的Template设置为至少包含ContentPresenter。
e.g。
<Style TargetType="local:TabItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="local:TabItem">
<!-- Usually there is also a Border which template binds the Margin, Padding, etc. -->
<ContentPresenter />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
答案 1 :(得分：0)
在与我正在改造的Fluent Ribbon库之一的开发人员通信后，他指出，为了实现这个设计，只需修改ContentPresenter就需要更多，并且需要完整的返工。在这种情况下，他曾建议构建一个Viewmodel列表，它们可以从彼此的控件中获取，它将提供我想要的设计。
感谢每个人的答案，但在这种情况下，困难的方式似乎很简单。
干杯。