How to design a Tab which shows content Vertically

Question

 I have to design a tab control. Tab item header should be shown verically.

Answer 1

I can tell you the way to make this. Get a copy of the ControlTemplate of TabControl. You can get it here if you aren't using Expression Blend to edit.

 <Grid KeyboardNavigation.TabNavigation="Local">
      <Grid.RowDefinitions>
        <RowDefinition Height="Auto"/>
        <RowDefinition Height="*"/>
      </Grid.RowDefinitions>
      <TabPanel 
        Name="HeaderPanel"
        Grid.Row="0"
        Panel.ZIndex="1" 
        Margin="0,0,4,-1" 
        IsItemsHost="True"
        KeyboardNavigation.TabIndex="1"
        Background="Transparent" />

You can see the below 2-row grid and a TabPanel as the Header panel. This is why the default TabControl has its headerpanel(Tabs) sits on the top(first row). You can change this rows to columns and replace the TabPanel with a StackPanel or something with a vertical orientation will do the trick.