Visual Basic

[dddriveman]

Originally Posted by Astronouth7303

I do lots o' VB. (just ask about MSCOMM.)

What do you mean by "sample code of cash registers"? Also, what edition and version of VB are you using? EE has a bunch of helpful controls. And how do you plan to store data about products? Like name, ID, price, etc. And what 'distribution' method are you going to do? LAN, DDE, multi form, what?

All of this effects what you use and how you do it.

I am just trying to click on commmand buttons that say Robot COntroller or Battery and they list the price in a picture box. I have all of that done but i cannot get the program to total all of the parts that i have selected becasue my variables will not carry over from the sub command for the command buttons when i press my total button. I am using vb6.0

[CrashZero]

Can we see your code??? Or is it a secret?

[Greg Needel]

are you compileing your variables before you try and sum them or is it an after affect

ie. function sample(x,y,z,p,d,q)

sum = x+Y+Z+P+D+Q


or
sum1 = x+y+z

sum2 = P+D+Q

Total = sum1 + sum2


i have found that doing inbetween steps like example 2 under each part of your program works better

[Astronouth7303]

Originally Posted by dddriveman

I am just trying to click on commmand buttons that say Robot COntroller or Battery and they list the price in a picture box. I have all of that done but i cannot get the program to total all of the parts that i have selected becasue my variables will not carry over from the sub command for the command buttons when i press my total button. I am using vb6.0

PICTURE BOX?!?!?!?!? Use a text box, first of all. The Text property is the equivelent of Value.

Are you using Quanity textboxes, too?

say:

• cbRC_Add as CommandButton
• cbBat_Add as CommandButton
• tbRC_Quanity as Textbox
• lblRC_Total as Label
• lblRC_Price as Label
• tbBat_Quanity as Textbox
• lblBat_Total as Label
• lblBat_Price as Label
• tbTotal as Label

These are the controls on your form.

So:

const RC_Price as currency = 500 'Sub type of variant
const Bat_Price as currency = 100
dim RC_Quanity as long, RC_Total as Currency
dim Bat_Quanity as long, Bat_Total as currency
dim Total as currency

private sub Form_Load ()
 RC_Quanity = 0
 Bat_Quanity = 0
 Update
end sub

Public sub Update()
 RC_Total = RC_Price * RC_Quanity
 Bat_Total = Bat_Price * Bat_Quanity
 Total = RC_Total + Bat_Total

 tbRC_Quanity = RC_Quanity
 tbRC_Total = RC_Total
 lblRC_Price = RC_Price
 tbBat_Quanity = Bat_Quanity
 tbBat_Total = Bat_Total
 lblBat_Price = Bat_Price
 tbTotal = Total
end sub

Be sure to insert Event hadlers for the command buttons and text boxes (Check for correct type).

[CrashZero]

I agree with Astronouth7303 200% what are you doing using a picture box!!!???!!?!!?!!? If you don't want people to be able to change the value then even using a label would be better then a picture box!

[deltacoder1020]

probably because he is using Print() so that he doesn't have to deal with linebreaks and the previous contents. however, i agree that a textbox is probably better here - the small amount of extra code is worth it.

i'd probably recommend a global variable to keep a running total in.

[Astronouth7303]

If you look at my code, I use variables for storing values and controls to display them. You could use the controls for storing values (VB handles conversions). But this introduces errors (possibly).

[Astronouth7303]

I just found something out about VB: it's predictable! lol

my brother (Bro) has been doing VC++ for a few months and has totally forgoten how to use VB, and I'm helping him make a control (Or: telling him he has to use "Not A" instead of "!A")

[Ryan M.]

Originally Posted by Astronouth7303

If you look at my code, I use variables for storing values and controls to display them. You could use the controls for storing values (VB handles conversions). But this introduces errors (possibly).

Hardly any (hopefully none) professional programmers would do this. Not only do you introduce the possiblity of introducing errors, it is less clean and violates a lot of principles of programming, such as information hiding.

P.S. VB gives me shivers. Go Java and C++.