WPF ListView GridView表头Header修改外观的方式

<Window.Resources>
    <DataTemplate x:Key="BlueHeader">
      <StackPanel Orientation="Horizontal" Margin="-5,-5,-5,-5" Width="120">
        <StackPanel.Background>
          <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FF223B84" Offset="1"/>
            <GradientStop Color="#FF57A0F4" Offset="0.5"/>
            <GradientStop Color="#FF4B94EC" Offset="0.5"/>
          </LinearGradientBrush>
        </StackPanel.Background>
        <TextBlock Margin="10,10,10,10" Text="{Binding}" 
        VerticalAlignment="Center"  Foreground="White"/>
        </StackPanel>
    </DataTemplate>
</Window.Resources>

1. 修改GridView的ColumnHeaderTemplate，这是一个DataTemplate, 这种方式将对所有列的Header生效

<GridView ColumnHeaderTemplate="{StaticResource BlueHeader}">

2. 修改某一列的Header外观，同一个DataTemplate

<GridViewColumn Header="Code" DisplayMemberBinding="{Binding Path=Code}" 
    HeaderTemplate="{StaticResource BlueHeader}" />

3. 直接编写某一列的Heade外观，不使用DataTemplate

<GridViewColumn>
    <GridViewColumn.Header>
        <GridViewColumnHeader>
            <Border>
                <TextBlock Text="表头"/>
            </Border>
        </GridViewColumnHeader>
    </GridViewColumn.Header>
    <GridViewColumn.CellTemplate>
        <DataTemplate>
            <Border>
                <TextBlock Text="{Binding xxx}"/>
            </Border>
        </DataTemplate>
    </GridViewColumn.CellTemplate>
</GridViewColumn>