[aljzazy]

كود :

Private selectedRowIndex As Integer = 0

Private Sub DataGridView1_KeyDown(sender As Object, e As KeyEventArgs) Handles DataGridView1.KeyDown
       ' Handle the Up and Down keys
       If e.KeyCode = Keys.Up Then
           ' Move the selection up
           selectedRowIndex -= 1
       ElseIf e.KeyCode = Keys.Down Then
           ' Move the selection down
           selectedRowIndex += 1
       End If

       ' Ensure the selected row index stays within valid bounds
       If selectedRowIndex < 0 Then
           selectedRowIndex = 0
       ElseIf selectedRowIndex >= DataGridView1.Rows.Count Then
           selectedRowIndex = DataGridView1.Rows.Count - 1
       End If

       ' Select the new row
       DataGridView1.CurrentCell = DataGridView1.Rows(selectedRowIndex).Cells(0)
   End Sub