TextBlock color animation in TabControl - wpf

Question

I am currently working in wpf. I was animating the color of textblock control inside the tab item. When the tab is selected, i want to change the foreground to white, i-e
<ColorAnimation
Storyboard.TargetName="buttonText"
Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)"
To="White" Duration="0:0:.1" />
the tab control code is;
<TabControl Name="tabSteps" Template="{StaticResource OfficeTabControl}">
<TabItem Header="Info" IsSelected="True">
<TextBlock>Info content</TextBlock>
</TabItem>
<TabItem Header="Recent">
<TextBlock>Recent content tab</TextBlock>
</TabItem>
<TabItem Header="New">
<TextBlock>New content tab</TextBlock>
</TabItem>
<TabItem Header="Print">
<TextBlock>Print content tab</TextBlock>
</TabItem>
<TabItem Header="Save & Send">
<TextBlock>Save & send content tab</TextBlock>
</TabItem>
<TabItem Header="Help">
<TextBlock>Help tab</TextBlock>
</TabItem>
</TabControl>
I want to target the textblock.
But it isn't working.
Any help will be appreciated.
I am following this work
http://www.codeproject.com/Articles/155211/Building-a-control-template-style-for-the-tabContr.aspx

Answer 1

Using the VisualStateManager, create a state for when your TabItem is selected. You can then specify the animation you mentioned to start as a transition to and from the selected state (see http://blogs.intuidev.com/post/2010/01/26/TabControlStyling_PartTwo.aspx for a tutorial).
The default style for the TabControl is here (http://msdn.microsoft.com/en-us/library/cc645035(v=vs.95).aspx), or you can easily generate it if you use Expression Blend.
You could also use this approach (a programmatic trigger) : https://stackoverflow.com/a/4958562/914602