i want to retrive data from database in datagrid while pressing the tab key. Help me to choose the event for this in VB.net 2010

cell mouse down- Occurs when the user presses a mouse button while the mouse pointer is within the boundaries of a cell.

Put this on your form code :

    Protected Overrides Function ProcessTabKey(ByVal forward As Boolean) As Boolean
        MyBase.ProcessTabKey(forward)
        MsgBox("Tab key") ' Change this with your retrieving code or function name
    End Function

where you want to perform this action , i mean where you want to press the tab key to populate your grid from your database.

Regards

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