Visual Basic

0x3c01-Mar-09 0:25

0x3c0

1-Mar-09 0:25

Perhaps nothing is selected in the treeview. This would cause a NullReferenceException, because TreeView1.SelectedNode would be Nothing

kralcobra_371-Mar-09 0:34

kralcobra_37

1-Mar-09 0:34

But it give choose condition mistake

0x3c01-Mar-09 1:06

0x3c0

1-Mar-09 1:06

I'm sorry? Are you talking about the if-block? Either way, we need the line on which the error occurred

what is the code in vb.net to browes for images of types jpg gif bmp in the same button ?

Luc Pattyn1-Mar-09 3:06

Luc Pattyn

1-Mar-09 3:06

Hi,

exceptions contain line number information (unless you only look at Exception.Message), and you can teach an IDE to always show line numbers in editor windows (Visual Studio: menu Tools/Options/...)

And there is single-stepping available in an IDE too, so you can figure it out manually.

You have been given two valid answers and down-voted them both. What more do you expect?

Smile | :)

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ahlamissa28-Feb-09 22:28

ahlamissa

28-Feb-09 22:28

what is the code in vb.net to browes for images of types jpg gif bmp in the same button ?

Re: what is the code in vb.net to browes for images of types jpg gif bmp in the same button ?

Rupesh Kumar Swami28-Feb-09 23:11

Rupesh Kumar Swami

28-Feb-09 23:11

try following code

 Private Sub cmdLogoGraphic_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdLogoGraphic.Click<br />
        Dim a As New OpenFileDialog<br />
        a.Filter = "BMP Files(*.bmp)|*.bmp|Jpg Files (*.jpg)|*.jpg|GIF Files (*.gif)|*.gif"<br />
        Try<br />
            If a.ShowDialog = Windows.Forms.DialogResult.OK Then<br />
               PictureBox1.Image = Image.FromFile(a.FileName)<br />
<br />
            End If<br />
        Catch ex As Exception<br />
            mdChecking.Prompt("Incorrect file type, please choose correct file.")<br />
        End Try<br />
        <br />
    End Sub

hope this helps

Rupesh Kumar Swami
Software Developer,
Integrated Solution,
Bikaner (India)

My Company
Award: Best VB.NET article of June 2008: Create Column Charts Using OWC11

Attach Form Class to the it's instance created by assembly

Aiman Farouk Mohamed28-Feb-09 21:39

Aiman Farouk Mohamed

28-Feb-09 21:39

Could any one hep me in showing me the way to attache the form Class which includes its subs and events to the form instance created by assembly
Thanks in advance
Aiman Farouk

Re: Attach Form Class to the it's instance created by assembly

Dave Kreskowiak1-Mar-09 4:19

Dave Kreskowiak

1-Mar-09 4:19

You're question doesn't make any sense. There is no "attach"ing a Form class. I have no idea what you're trying to do or describe.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Printing multiple pages in Viusal Basic .net each from a different source using Sub Routines

tbkfile28-Feb-09 19:42

tbkfile

28-Feb-09 19:42

First post here so please be patient, I wrote some software for the company that I work for in VB6 for Scheduling and quoting construction based projects and am upgrading to VB 2008, not a problem except for the printing, The user had several check boxes and option groups which related to which pages were printed, the first was a cover page, second page a preamble, third page list of doors etc all taken from different sources, in VB6 it was pretty simple to create a printer object (called myPrint) call the various page sub routines and to put it together example as below:

Select Case True
Case frmPrint.optAll(0).Value = True 'materials listing
MyPrint.NewPage
PProductListingA
Case frmPrint.optAll(1).Value = True 'bill of quantities
MyPrint.NewPage
PBOQsA

Obviously we've lost the NewPage which has been replaced with HasMorePages from within the PrintPage method, I've spent about a week now trying to call the various sub routines from within this and quite simply have hit a brick wall. Lots of examples on the web to point me in the right direction but they all seem to be based around a single block of text printed over various pages, help. I just need a pointer in the right direction.

Re: Printing multiple pages in Viusal Basic .net each from a different source using Sub Routines

Dave Kreskowiak1-Mar-09 4:21

Dave Kreskowiak

1-Mar-09 4:21

I would think that you just pass the Graphics object in the print event args to the Sub that's going to render that particular page. You just have to check for which page your printing to know which Sub to call.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: Printing multiple pages in Viusal Basic .net each from a different source using Sub Routines

tbkfile1-Mar-09 7:37

tbkfile

1-Mar-09 7:37

Thanks Dave, I've tried this in just about everyway that I can think, the problem is that each section could be a number of pages long and it seems that when I pass it as Printing.PrintPageEventArgs so that each sub routine can check to see if there are any more pages using HasMorePages, the event is fired from both within the subroutine and the main PrintPage routine! if I pass it as a Graphics object than there's no way of checking to see if it will fit on one page or how to add one if it needs more (the old VB6 way was easy)

Re: Printing multiple pages in Viusal Basic .net each from a different source using Sub Routines

Duncan Edwards Jones2-Mar-09 9:22

Duncan Edwards Jones

2-Mar-09 9:22

What I have done in this case (for example in the DataGrid printer class[^] and the Structured Print Document[^]) is to have each "data item" track how much of it is is left and throw a new page if there is more data to print.

'--8<------------------------
Ex Datis:
Duncan Jones
Merrion Computing Ltd

Re: Printing multiple pages in Viusal Basic .net each from a different source using Sub Routines

tbkfile3-Mar-09 17:54

tbkfile

3-Mar-09 17:54

Thanks Duncan - Its taken a while to sort out the logic, but like most things in VB once you have, you wonder why you didn't think of it before. Anyway its all sorted now so thnks for your help.

Vertical Progress Bar

megacharged28-Feb-09 10:56

Re: Vertical Progress Bar

28-Feb-09 10:56

does anyone know where i can find a vertical progress bar control or better yet a thermostat control

ABitSmart28-Feb-09 23:09

ABitSmart

28-Feb-09 23:09

See if this helps MSDN[^]

Re: Vertical Progress Bar

Andy_L_J1-Mar-09 19:35

Andy_L_J

1-Mar-09 19:35

Graphics Server .NET (GSNetWin Widget)

http://www.graphicsserver.com/[^]

I don't speak Idiot - please talk slowly and clearly

I don't know what all the fuss is about with America getting it's first black president. Zimbabwe's had one for years and he's sh*t. - Percy Drake , Shrewsbury

installing downloads

megacharged28-Feb-09 6:12

28-Feb-09 6:12

ok so im a beginner just started taking classes. but i dont know how to install vb files for controls that ive downloaded.

Steven J Jowett28-Feb-09 9:48

Steven J Jowett

28-Feb-09 9:48

Are you wanting to reference the control's DLLs or are you wanting to include the control's source code in your project?

If you want to reference the control, the from the Solution Explorer, Right-click on the Project, select Properties and go to the References tab. There is an add button there, the rest is self-explanitory.

If you have source code, the you can add the control's project (assuming it is in a project of its own), to your solution. Select the File - Add - Existing Project.

If you have only the .VB source code file, I believe you can simply drag the file into your project in the Solution Explorer.

Hope this helps

Steve Jowett
-------------------------
Real programmers don't comment their code. If it was hard to write, it should be hard to read.

megacharged28-Feb-09 10:49

28-Feb-09 10:49

i appreciate the help but im a beginner so i dont understand half the things you said. the file i have is an ocx file what should i do with it

riced28-Feb-09 13:41

riced

28-Feb-09 13:41

Delete it? Smile | :)

Regards
David R

Steven J Jowett1-Mar-09 0:11

Steven J Jowett

1-Mar-09 0:11

Are you using VB.NET or VB6. OCX files are old technology and would not be a .NET control. If you are using .NET the find an equivent .NET control. If you are learning VB^, don't, it been obsolete since 2002.

Steve Jowett
-------------------------
Real programmers don't comment their code. If it was hard to write, it should be hard to read.

megacharged1-Mar-09 5:31