问无法从TabItem事件切换DoubleClick

EN

// Switch to configuration tab
tabControl.SelectedItem = configTab;

<Grid>
    <TabControl Height="Auto" HorizontalAlignment="Stretch" Name="tabControl" VerticalAlignment="Stretch" Width="Auto" Padding="0" SelectionChanged="BuildSummary">
        <TabItem Header="Configurations" Name="configTab">
            ...
        </TabItem>
        <TabItem Header="Temperature" Name="tempTab">
            ...
        </TabItem>
        <TabItem Header="Test List" Name="testTab">
            ...
        </TabItem>
        <TabItem Header="Summary" Name="summaryTab">
            ...
        </TabItem>
    </TabControl>
</Grid>

private void Execute(object sender, RoutedEventArgs e)
{
    // Switch to configuration tab
    tabControl.SelectedItem = configTab;
}

private void DoubleClick(object sender, MouseButtonEventArgs e)
{
    DataGridRow row = ItemsControl.ContainerFromElement(
        (DataGrid)sender, e.OriginalSource as DependencyObject) 
        as DataGridRow;

    if (row == null)
        return;

    /* code here prepares the configuration tab */
    ...

    // Switch to configuration tab
    tabControl.SelectedItem = configTab;
}