How to give number validate in textbox
take keypress event of textbox
Private
Sub Txtqty_KeyPress(ByVal sender As System.Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles Txtqty.KeyPress
Dim i As String = e.KeyChar.ToString
If i = " " Then
Else
If IsNumeric(i) Then
Else
e.Handled = True
MessageBox.Show("Enter valid Number")
End If
End If
End Sub