Show row number in row header of a DataGridView

Question

Is it possible to show row number in the row header of a DataGridView?

I\'m trying with this code, but it doesn\'t work:

    pri         


        

Answer 1

This worked for me.

Private Sub GridView1_CellFormatting(sender As Object, e As DataGridViewCellFormattingEventArgs) Handles GridView1.CellFormatting
    Dim idx As Integer = e.RowIndex
    Dim row As DataGridViewRow = VDataGridView1.Rows(idx)
    Dim newNo As Long = idx
    If Not _RowNumberStartFromZero Then
        newNo += 1
    End If

    Dim oldNo As Long = -1
    If row.HeaderCell.Value IsNot Nothing Then
        If IsNumeric(row.HeaderCell.Value) Then
            oldNo = CLng(row.HeaderCell.Value)
        End If
    End If

    If newNo <> oldNo Then 'only change if it's wrong or not set
        row.HeaderCell.Value = newNo.ToString()
        row.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleRight
    End If
End Sub