I've got a small problem of having a button and a combo box. In this situation the combobox holds values from 1 to 10. The enter button allows the user to select how many dynamic objects they want to produce however my program crashes every time I press enter after selecting another value and pressing enter again. So is there any form of validation I can have for my button to stop users from pressing enter twice.
Use a flag to supress user events.
Clear it again if need be at the appropriate time.
Private Enter_Locked As Boolean Private Sub btn_Click(sender As Object, e As EventArgs) Handles btn.Click If Enter_Locked Then Exit Sub Enter_Locked = True 'do as you will here End Sub