Hi Kiran,
In order to understand whether there is only one record, you will have to traverse all items in the specific column of the RadGrid. Depending on the items count (items with values different than "null") hide the column. This could be done in the PreRender() event handler as follows:
If your requirements are different, elaborate in further details on your specific scenario. Attached you can find a sample project which demonstrates how to implement the aforementioned approach.
Kind regards,
Tsvetomir
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