How to get datagrid cell value for the selected row?

Windows Forms Application vb.net / access I need to get the cell value of selected row of the datagrid and pass it on to another form to display info based on the cell value. I went as far as to get the current cell value of the grid. could not get the datagridtextboxcolumn to work. I have a getdataset routine which I am calling for various places and at each point passing a unique name for dataset to identify from where it is initiated. So the problem is I am not providing the correct Tablestyles index. I have the following code in Datagrid.DoubleClick event: Dim j As Integer = DataGrid1.CurrentRowIndex() Dim dgc As New DataGridCell() dgc.ColumnNumber = 11 dgc.RowNumber = j DataGrid1.CurrentCell = dgc Dim dgtb As DataGridTextBoxColumn = DataGrid1.TableStyles(0).GridColumnStyles(11) Dim pkey As String = dgtb.TextBox.Text Error message at DatagridTextBoxColumn - An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll Additional information: Index was out of range. Must be non-negative and less than the size of the collection Any help will be highly appreciated. TIA