Cut, Copy and Paste Rows in Data Grid

Hi I would like to know how to write the code for Deleting or Copying and pasting rows in the VB.NET Grid. I tried dt.rows.InsertAt(dr,3) and dt.rows.RmoveAt(rowNum) for deleting and tried to force it to accept chages too, but it seems not to be helping me. Is there any samples or suggestions that could help. I'd really appreciat your kindness. Thank you in advance. Jawed

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