x404.co.uk
http://www.x404.co.uk/forum/

Visual Basic 2010 question about displaying data in a form
http://www.x404.co.uk/forum/viewtopic.php?f=4&t=10507		 Page 1 of 1
Author:  John_Vella [ Fri Sep 10, 2010 7:45 pm ]
Post subject:  Visual Basic 2010 question about displaying data in a form
Hi,

OK, I'm not exactly sure how to describt this but I'll try anyway...

I'm writing an application using Visual Basic 2010, and I have 2 sets of Radio buttons. I have gotten as far as being able to select a button in each set, and that in turn sets a variable to a value depending on which button is selected. I should point out that I click a button to perform the calculation, which is what I want...

What I need is a way to have those values displayed somewhere on the screen.

I have managed to create a message box with the data displayed, but I want the data on the screen, as I will be re-using the variable for something else...

Here are some code snippets, if it helps...

Code:
Public Shared ndval As Integer
    Public Shared ssval As Double
    Public Shared expotime As Integer
    Public Shared radio1 As Integer
    Public Shared expo1 As Double
    Private Property radiol As Double

This is where I set the variables, (some of which are no longer needed, but I'll remove them later)

Code:
Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged
        If RadioButton1.Checked Then ndval = 1
    End Sub

I have one of these set up for each radio button, and yes I know that there is probably a far easier way, but I'll refine the code after I get the damned thing working!
By the way, I also use the same sort of code to assign a value to ssval

Code:
Private Sub Button2_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

        expo1 = ndval * ssval
        MsgBox("The result is... " & expo1)


    End Sub


As I said, I can get the value, (expo1) to appear in a message box, but I want it to appear on the scree... Any ideas, (while I carry on searching)?

Thanks in advance,

John.

:)
Author:  forquare1 [ Sat Sep 11, 2010 9:18 am ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
As an incomplete answer:

I think I'd use a label and then do something like:
Code:
expo1 = ndval * ssval;
mylabel.setText(expo1)
Author:  John_Vella [ Sat Sep 11, 2010 10:06 am ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
forquare1 wrote:
As an incomplete answer:

I think I'd use a label and then do something like:
Code:
expo1 = ndval * ssval;
mylabel.setText(expo1)


Hmmm... interesting... I thought that the second command was Java, or am I losing the plot? Again ;)

OK, I'll give it a go in a little while, once the PC has finished a fairly major encoding job and let you know how I get on.

Thanks.

:D
Author:  big_D [ Sat Sep 11, 2010 3:43 pm ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
That is Java, not VB...

The VB would be:

expo1 = ndval * ssval
mylabel.text = expo1
Author:  forquare1 [ Sat Sep 11, 2010 4:53 pm ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
Aye, I knew Java did it, but I though that VB would be similar, at least similar enough to get you on the right tracks :)
Author:  John_Vella [ Sat Sep 11, 2010 10:01 pm ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
Thanks guys. Ben, it din indeed put me on the right tracks, and Dave thanks also, for saving me a bit more searching.

It's coming along quite nicely now... :D
Author:  John_Vella [ Tue Jan 18, 2011 8:35 pm ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
OK, update time... I had to leave this project alone for a while, but I'm finding it's a nice distraction for when I need to stop doing college/uni work for 10 minutes, but I've hit another road block.

I need a way of making a variable available in different forms.

Code:
Public Class Form1
    Public Shared ndval As Double
    Public Shared ssval As Double
    Public Shared expotime As Double
    Public Shared radio1 As Double
    Public Shared expo1 As Double


The variable in question is expo1, and it is dynamically updated with a value, but when I click a button which opens a new form I can't get the value to carry across.

I've tried Googling it, but nothing I've seen has helped... Any bright ideas please?

TIA

:D
Author:  JJW009 [ Wed Jan 19, 2011 12:18 am ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
If you want a variable to be global across all forms in a project, then you need to add a new module and define it in that. Variables defined in a form can only be used in that form.

Code:
Module Module1
    Public ndval As Double
    Public ssval As Double
    Public expotime As Double
    Public radio1 As Double
    Public expo1 As Double
End Module


I think :lol:
Author:  John_Vella [ Wed Jan 19, 2011 9:11 am ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
After I added the module and removed the variables from the individual forms it worked a treat, so thanks a million JJ! :D
Author:  finlay666 [ Wed Jan 19, 2011 9:03 pm ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
John_Vella wrote:
The variable in question is expo1, and it is dynamically updated with a value, but when I click a button which opens a new form I can't get the value to carry across.

I've tried Googling it, but nothing I've seen has helped... Any bright ideas please?


Easiest way is a global (if vb supports it)

OR

Pass it via the method that opens the form I'd say
Author:  John_Vella [ Thu Jan 20, 2011 9:33 am ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
Thanks Fin. JJ's method did work, but I'll give the global variables a go as well... always nice to have a few different ways of doing the same thing.

Now all I need to do is find the time to code a countdown timer, (after converting seconds into hours minutes and seconds)
Author:  finlay666 [ Thu Jan 20, 2011 4:30 pm ]
Post subject:  Re: Visual Basic 2010 question about displaying data in a form
John_Vella wrote:
Now all I need to do is find the time to code a countdown timer, (after converting seconds into hours minutes and seconds)


easier to make use of an initial datetime and getting the timespan instead. then you can calculate the difference then convert them (eg seconds = hours * 360)
Page 1 of 1 All times are UTC
Powered by phpBB® Forum Software © phpBB Group
https://www.phpbb.com/