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分享如何在资源字典中改变expander的Header显示方向为竖排
如果是想要改变Expander标题文字的显示方向为竖排，在资源字典中应该如何更改？比如原始标题为“这是一个特殊控件”，显示方式从横排变成
“这
是
一
个
特
殊
控
件
”
“这
是
一
个
特
殊
控
件
”
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郑州高新区WPF小王子 2017-09-26
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<ContentPresenter Name="HeaderConternt" Grid.Row ="1"
Margin="4"
ContentSource="Header"
RecognizesAccessKey="True"/>
->改为
<TextBlock Name="HeaderConternt" Grid.Row ="1" Width="8"
Margin="4" TextWrapping="Wrap" Text="{TemplateBinding Header}"/>
HGSJJ 2017-09-25
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一下部分即是资源字典里面的内容：
<Style x:Key="VerticalExpander" TargetType="Expander" BasedOn="{StaticResource Overall}">
<Setter Property="Control.Margin" Value="0,0,0,5"/>
<Setter Property="Control.Foreground" Value="#FFFFFF"/>
<Setter Property="IsExpanded" Value="True"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Expander">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Name="ContentRow" Width="0"/>
</Grid.ColumnDefinitions>
<Border Name="Border"
Grid.Column="0"
Background="{StaticResource LightBrush}"
BorderBrush="{StaticResource NormalBorderBrush}"
BorderThickness="1"
CornerRadius="2,2,0,0"
SnapsToDevicePixels="True"
>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="20" />
<RowDefinition/>
</Grid.RowDefinitions>
<ToggleButton IsChecked="{Binding Path=IsExpanded,Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" OverridesDefaultStyle="True" Background="{StaticResource NormalBrush}" />
<ContentPresenter Name="HeaderConternt" Grid.Row ="1"
Margin="4"
ContentSource="Header"
RecognizesAccessKey="True"/>
</Grid>
</Border>
<Border Name="Content"
Grid.Column ="1"
Background="{StaticResource WindowBackgroundBrush}"
BorderBrush="{StaticResource SolidBorderBrush}"
BorderThickness="1,0,1,1"
CornerRadius="0,0,0,0" >
<ContentPresenter Margin="3,3,0,3" />
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="Expander.IsMouseOver" Value="true">
<Setter TargetName="Border" Property="Background" Value="{StaticResource DarkBrush}" />
</Trigger>
<Trigger Property="IsExpanded" Value="True">
<Setter TargetName="ContentRow" Property="Width" Value="{Binding ElementName=Content,Path=DesiredWidth}" />
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter TargetName="Border" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
<Setter TargetName="Border" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
<Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
下面的是MainWindow.xaml里面的内容：
<Window x:Class="ExpanderStyle.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Expander Grid.Column="0" IsExpanded="True" VerticalAlignment="Stretch" ExpandDirection="Left" HorizontalContentAlignment="Left" SnapsToDevicePixels="True" Style="{StaticResource VerticalExpander}" Header="TestExpander">
<Button Name="buttonTest">Test2</Button>
</Expander>
<TextBox Name="textTest" Grid.Column="1"></TextBox>
</Grid>
</Window>
下面是我自己定义的一个转换器，要把Expander的Header内容显示方式转换为竖排，东西都做出来了，就是不知道怎么在资源字典里面更改，
namespace testExpand.Convert
{
class expanderConvert:IValueConverter
{
public object Convert(object value,Type targetType,object parameter,CultureInfo culture)
{
string result="";
if(value == null)
return DependencyProperty.UnsetValue;
string Header = (string)value;
for(int i = 0;i < Header.Length;i++)
{
string zm = Header.Substring(i,1);
result = result + zm.ToString() + "\r\n";
}
return result;
}
public object ConvertBack(object value,Type targetType,object parameter,CultureInfo culture)
{
return DependencyProperty.UnsetValue;
}
}
}
郑州高新区WPF小王子 2017-09-20
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你的资源字典代码呢
