I add this control how i assign it tag and content dynamically ??
<ComboBox x:Name="cbTst" SelectedValue="{Binding SelectedDirection, Mode=TwoWay}" SelectedValuePath="Tag" Canvas.Left="82" Canvas.Top="19">
<ComboBoxItem Content="North" Tag="0"/>
<ComboBoxItem Content="East" Tag="90"/>
<ComboBoxItem Content="South" Tag="180"/>
<ComboBoxItem Content="West" Tag="270"/>
</ComboBox>