我有一个包含多个TabItem的WPF应用程序。每个TabItem都彼此不同，带有文本和图标。
这是TabItem的样式定义方式：
<TabItem.Style>
<Style TargetType="TabItem">
<Setter Property="Header">
<Setter.Value>
<StackPanel Orientation="Horizontal">
<Image Margin="10,0,0,0" Height="40" Width="40" Source="Images/IconLeafGrey.png"/>
<TextBlock Text="This is the heading" VerticalAlignment="Center" Style="{StaticResource Heading2}" Margin="10,0,0,0"/>
</StackPanel>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}">
<Grid>
<Border Name="Border" BorderBrush="Black" BorderThickness="1,1,1,1" CornerRadius="6,6,0,0" >
<Border.Background>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<GradientStop Color="#f5f7f8" Offset="0.0" />
<GradientStop Color="#c5d0dd" Offset="1.0" />
</LinearGradientBrush>
</Border.Background>
<ContentPresenter Name="ContentSite" VerticalAlignment="Center" HorizontalAlignment="Left" ContentSource="Header" Margin="5,2,0,2"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" TargetName="Border">
<Setter.Value>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#ebedee" Offset="0.0" />
<GradientStop Color="#88a2bd" Offset="1.0" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Header">
<Setter.Value>
<StackPanel Orientation="Horizontal">
<Image Margin="10,0,0,0" Height="40" Width="40" Source="Images/IconLeaf.png"/>
<TextBlock Text="This is the heading" VerticalAlignment="Center" Style="{StaticResource Heading2}" Margin="10,0,0,0"/>
</StackPanel>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
</TabItem.Style>
因此，我不想为每个TabItem编写这个XAML标记，而是想在我的ResourceDictionary中定义一次这种样式，但是将Icon和Text属性作为可选参数。所以我之后可以像这样定义一个TabItem：
<TabItem Width="250" Height="60" Style="{StaticResource CustomTabItem}" >
我已经读过，样式不可能直接接受这样的参数，但它应该是某种绑定的可能。我还没有找到具体的方法，所以我真的希望你能提供帮助。
亲切的问候。
答案 0 :(得分：3)
您只需将TabItem.DataContext设置为包含TextBlock和Image控件值的对象：
在代码中：
public class TabItemData
{
public string ImageSource { get; set; }
public string Heading { get; set; }
}
在XAML的Style中：
<StackPanel Orientation="Horizontal">
<Image Margin="10,0,0,0" Height="40" Width="40" Source="{Binding ImageSource}"/>
<TextBlock Text="{Binding Heading}" VerticalAlignment="Center"
Style="{StaticResource Heading2}" Margin="10,0,0,0"/>
</StackPanel>
在您的视图模型中：
public class TabControlViewModel
{
public TabControlViewModel()
{
TabItemData = new TabItemData() { Header = "Some header",
ImageSource = "Images/IconLeafGrey.png" };
}
public TabItemData TabItemData { get; set; }
}
在XAML中：
<TabItem DataContext="{Binding TabItemData}">
...
</TabItem>
当然，我已经省略了一些数据对象的初始化以及你应该实现的INotifyPropertyChanged接口，但我希望你明白这一点。
答案 1 :(得分：3)
如果您有TabItems的固定数量，并且您不希望在TabControl上生成TabItems到ItemsSource Binding，那么这样做的一种方法就是这样做。然后在您的TabItem.Style中，您可以使用Resource键获取文字和来源，如：
<StackPanel Orientation="Horizontal">
<Image Margin="10,0,0,0" Height="40" Width="40" Source="{DynamicResource Image1}"/>
<TextBlock Text="{DynamicResource Header}" VerticalAlignment="Center" Style="{StaticResource Heading2}" Margin="10,0,0,0"/>
</StackPanel>
您的TabItems可以定义这些资源：
<TabItem Width="250" Height="60" Style="{StaticResource CustomTabItem}">
<TabItem.Resources>
<System:String x:Key="Header">TabItem1</System:String>
<System:String x:Key="Image1">image/1.png</System:String>
<System:String x:Key="Image2">image/2.png</System:String>
</TabItem.Resources>
</TabItem>
<TabItem Width="250" Height="60" Style="{StaticResource CustomTabItem}">
<TabItem.Resources>
<System:String x:Key="Header">TabItem2</System:String>
<System:String x:Key="Image1">image/3.png</System:String>
<System:String x:Key="Image2">image/4.png</System:String>
</TabItem.Resources>
</TabItem>
此外，您需要更新Style以设置HeaderTemplate而不是Header
<Style x:Key="CustomTabItem" TargetType="TabItem">
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Image x:Name="HeaderImage" Margin="10,0,0,0" Height="40" Width="40" Source="Images/IconLeafGrey.png"/>
<TextBlock Text="{DynamicResource Header}" VerticalAlignment="Center" Margin="10,0,0,0"/>
</StackPanel>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type TabItem}}}" Value="true">
<Setter TargetName="HeaderImage" Property="Source" Value="Images/IconLeaf.png"/>
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}">
<Grid>
<Border Name="Border" BorderBrush="Black" BorderThickness="1,1,1,1" CornerRadius="6,6,0,0" >
<Border.Background>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<GradientStop Color="#f5f7f8" Offset="0.0" />
<GradientStop Color="#c5d0dd" Offset="1.0" />
</LinearGradientBrush>
</Border.Background>
<ContentPresenter Name="ContentSite" VerticalAlignment="Center" HorizontalAlignment="Left" ContentSource="Header" Margin="5,2,0,2"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" TargetName="Border">
<Setter.Value>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#ebedee" Offset="0.0" />
<GradientStop Color="#88a2bd" Offset="1.0" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>