C# 无法在silverlight中更改所选选项卡项的背面颜色

我有一个带有

TabItem

的

TabControl

。我想更改所选选项卡的

tabitem

标题的背景色

因此，我将

XAML

代码设置如下

<sdk:TabControl Background="WhiteSmoke" Foreground="Black" 
            SelectionChanged="TabControl_SelectionChanged">
<sdk:TabItem Name="adminTab" BorderBrush="Black">
    <sdk:TabItem.Header>
        <StackPanel Name="adminsp" Background="#C7CEF7">
            <Image Name="ico1" Source="Images/admin.png"/>
            <TextBlock Text="Admin"/>
        </StackPanel>
    </sdk:TabItem.Header>
</sdk:TabItem>
<sdk:TabItem Name="userTab" BorderBrush="Black">
    <sdk:TabItem.Header>
        <StackPanel Name="usersp" Background="#C7CEF7">
            <Image Name="ico1" Source="Images/user.png"/>
            <TextBlock Text="User"/>
        </StackPanel>
    </sdk:TabItem.Header>
</sdk:TabItem>

---

但是背景颜色没有改变，任何帮助都将不胜感激

如果你想直接做，你应该这样做，否则你应该编辑TabControl的样式

    TabControl currentTab = (TabControl)sender;
    TabItem selectedItem = currentTab.SelectedItem as TabItem;
    if (selectedItem != null)
    {
        foreach (TabItem currentItem in currentTab.Items)
        {
            if (currentItem == selectedItem)
            {
                selectedItem.BorderBrush = new SolidColorBrush() { Color = Colors.Green };
                selectedItem.Background = new SolidColorBrush() { Color = Colors.LightGray };
            }
            else
            {
                currentItem.BorderBrush = new SolidColorBrush() { Color = Colors.Blue };
                currentItem.Background = new SolidColorBrush() { Color = Colors.Gray };
            }
        }
    }

    TabControl currentTab = (TabControl)sender;
    TabItem selectedItem = currentTab.SelectedItem as TabItem;
    if (selectedItem != null)
    {
        foreach (TabItem currentItem in currentTab.Items)
        {
            if (currentItem == selectedItem)
            {
                selectedItem.BorderBrush = new SolidColorBrush() { Color = Colors.Green };
                selectedItem.Background = new SolidColorBrush() { Color = Colors.LightGray };
            }
            else
            {
                currentItem.BorderBrush = new SolidColorBrush() { Color = Colors.Blue };
                currentItem.Background = new SolidColorBrush() { Color = Colors.Gray };
            }
        }
    }