[aloush]

أرجو المساعدة لتحويل هذا الكود إلى لغة السي شارب :
    Private Sub DGV_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles DGV.EditingControlShowing
        Dim i As Integer = DGV.CurrentCell.RowIndex
        Dim j As Integer = DGV.CurrentCell.ColumnIndex
        If j = 3 Or j = 4 Then
            column_index = DGV.CurrentCell().ColumnIndex
            Dim TextEdit As TextBox = e.Control
            RemoveHandler TextEdit.KeyPress, AddressOf TextBox_KeyPress_Number
            AddHandler TextEdit.KeyPress, AddressOf TextBox_KeyPress_Number
        End If
    End Sub
    Public Sub TextBox_KeyPress_Number(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs)
        Dim i As Integer = DGV.CurrentCell.RowIndex
        Dim j As Integer = DGV.CurrentCell.ColumnIndex
        If j = 3 Or j = 4 Then
            Select Case column_index = 0
                Case 0
                    If (e.KeyChar >= "a" And e.KeyChar <= "z") Or (e.KeyChar >= "A" And e.KeyChar <= "Z") Or (e.KeyChar >= "ا" And e.KeyChar <= "ي") Then
                        e.Handled = True
                    End If
            End Select
        End If
   End Sub