Some days back i saw an example of what i need now but couldn't remind what was the way.
I want to show the text description in TextBlock
and if the text is more that the size of text block, show the ...
Use below code to achieve this,
<TextBlock Text="{StaticResource someText}"
TextWrapping="Wrap" TextTrimming="CharacterEllipsis"
Margin="10"/>
And possible values of TextTrimming are as below,