Hi Venkatesan Mani,
Thanks for your reply its really helpfull
I need one more support
In my application i have placed RichTextBox inside Dockable window and i gave Width and Height of RichTextBox to 'Auto'
when i am floating my window RichTextBox throws exception "Width and Height must be non-negative"
can you please help me to trace out the issue
Thank you
Santhosh Devi