C# TabItem Silverlight

我有一个TabControl，它在XAML中有这个TabItem

<controls:TabItem x:Name="UserNameOn1" Background="LightGray" Height="25"  Visibility="Visible"  IsSelected="False" MouseLeftButtonDown="teste110_MouseLeftButtonDown">
      <controls:TabItem.Header>
           <StackPanel x:Name="TabitemPanel" Orientation="Horizontal" VerticalAlignment="Center">
                   <Image x:Name="UserImage" Source="/Tese;component/Images/user_act.png" Width="30" Height="15" Margin="0,0,0,0" VerticalAlignment="Center" ImageFailed="UserImage_ImageFailed"/>
                   <TextBlock Name="Userdisplay"  Text="UserName" Margin="30,0,0,0" VerticalAlignment="Center"/>
           </StackPanel>
      </controls:TabItem.Header>

试试这个

at event or form load whenever you want.

Userdisplay.text = conta.Username_v;

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这只会更改文本框的文本，不会影响其他内容

谢谢这正是我需要的，不知道为什么我以前没有尝试过

at event or form load whenever you want.

Userdisplay.text = conta.Username_v;