Arbaaz Arbaaz - 4 months ago 43
Vb.net Question

DataGridView Numeric Only Cell?

I am new to winforms..I am trying to set two column of DataGridView to Numeric Only.. I do not want user to be able to type anything into a cell unless its a natural number in one column and a numeric value in another(which always one decimal).
I thought this would be simple.. but even after trying a lot of things from stackoverflow and other sites i am still unable to achieve this.

If DataGridView1.CurrentCell.ColumnIndex = 8 Then

If Not Char.IsControl(e.KeyChar) AndAlso Not Char.IsDigit(e.KeyChar) AndAlso e.KeyChar <> "."c Then
e.Handled = True
End If

End If

Answer

Try this code

 Private Sub DataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles DataGridView1.EditingControlShowing

        If DataGridView1.CurrentCell.ColumnIndex = 2 Then

            AddHandler CType(e.Control, TextBox).KeyPress, AddressOf TextBox_keyPress

        ElseIf DataGridView1.CurrentCell.ColumnIndex = 1 Then

            AddHandler CType(e.Control, TextBox).KeyPress, AddressOf TextBox_keyPress1


        End If

    End Sub

    Private Sub TextBox_keyPress(ByVal sender As Object, ByVal e As KeyPressEventArgs)

        If Char.IsDigit(CChar(CStr(e.KeyChar))) = False Then e.Handled = True

    End Sub

    Private Sub TextBox_keyPress1(ByVal sender As Object, ByVal e As KeyPressEventArgs)

        If Not (Char.IsDigit(CChar(CStr(e.KeyChar))) Or e.KeyChar = ".") Then e.Handled = True

    End Sub

TextBox_keyPress Event for only numeric

TextBox_keyPress1 Event for numeric with decimal value