TabItem标识TabControl控件中的一页,TabItem类添加的唯一有意义的属性是IsSelected,该属性指示选项卡当前是否显示在TabControl控件中

<Window x:Class="WpfApplication1.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>
        <TabControl>
            <TabItem Header="tab item one">
                <TextBlock>11111111111</TextBlock>
            </TabItem>

            <TabItem Header="tab item two">
                <TextBlock>22222222222</TextBlock>
            </TabItem>

        </TabControl>
    </Grid>
</Window>