To make the RadGrid occupy the full space of its container, you should to set Width="100%" and Height="100%". Also, in case you want to place it in the resizable container you have to repaint
it after every resize.
Additionally, I have made a sample web page, where I used Resizable jQuery plugin
. You can find it in the attached file. Please check it out and let me know how it goes.
I hope this helps.
All the best,
the Telerik team
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