U add a action to the datagrid and the int is the selectedrow
With that int u can select all the cells within that row.
Private Sub dtg_CellContentClick(sender As System.Object, e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dtg.CellContentClick
Dim int As Integer = Me.dtg.CurrentCell.RowIndex
Dim FirstColumnSelectedRecord As String
FirstColumnSelectedRecord = Me.dtg.Item(0, int).Value.ToString