Assembly: System.Windows.Forms (in system.windows.forms.dll)
The value of the DataGridView property of the cell is not a null reference (Nothing in Visual Basic) and rowIndex is less than 0 or greater than or equal to the number of rows in the parent DataGridView.
The value of the DataGridView property of the cell is not a null reference (Nothing in Visual Basic) and the value of the ColumnIndex property is less than 0, indicating that the cell is a row header cell.
Pass the GetValue method the row index you used to retrieve the DataGridViewCell. Do not use the RowIndex property for the rowIndex parameter. If the row is shared, RowIndex is -1, which is not a valid value for rowIndex.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.