Keep in mind I am very much so a beginner.....
I am making a simple little Vending Machine.. if you picture the keypad on most vending machines you will get the idea of what I am trying to build.....I have selection buttons 2 letters and 2 numbers. "A, B, 1, 2"
I have a textbox that as you push each button will display your selection.....I am having a problem with the numbers..the first "letter" selection is easy and if you push the letter A and then hit B it will just replace the text in the box.....what I am not able to figure out is how to make it do the same thing for the numbers...the second entry. here is my code.....
Private Sub Abutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Abutton.Click SelectionText.Text = "A" End Sub Private Sub Bbutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Bbutton.Click SelectionText.Text = "B" End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If String.IsNullOrEmpty(SelectionText.Text) Then MsgBox("Please select A-F first") SelectionText.Text = "" Else SelectionText.Text = SelectionText.Text & "1" End If End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click If String.IsNullOrEmpty(SelectionText.Text) Then MsgBox("Please select A-F first") SelectionText.Text = "" Else SelectionText.Text = SelectionText.Text & "2" End If End Sub
I dont want to be able to keep pushing one of the number buttons and keep adding digits to the end of what is there already...
Thanks for any help!
This post has been edited by newsledder: 05 November 2009 - 10:11 PM