I have created message boxes for input errors for Length, Width and Height. Each time one is entered correctly it should prompt to enter the next one or if a zero is entered, prompt to enter a number greater than zero. I am new to this and I am not sure
if I am doing it correctly. I would appreciate any help. I have placed the message boxes in the Catch section. Here is my code. Thanks!
Option Strict On
Option Explicit On
'Declaring the Public Class Constants and Variables
Public Class Form1
Const dblTAXRATE As Double = 0.055
Const dblHOURLYRATE As Double = 45
Const dblSUPPLYRATE As Double = 1.5
Const dblCOLORCHG As Double = 0.0
Const dblCOLOR2CHG As Double = 0.1
Const dblCOLOR3CHG As Double = 0.2
Dim dblPaintC1 As Double
Dim dblPaintC2 As Double
Dim dblPaintC3 As Double
'Making the picture boxes disappear when clicked and the correct color label to be selected
Private Sub PictureBox1_Cl ...
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