c# - Failed to load viewstate in devexpress -

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this problem creating lot of trouble in devexpress master detail gridview

"failed load viewstate. control tree viewstate being loaded must match control tree used save viewstate during previous request. example, when adding controls dynamically, controls added during post-back must match type , position of controls added during initial request."

i want know why happens in first place, can check code. thats why not posting code

its urgent :)


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