[RESOLVED] Help : TabControl (Contained Controls )

[Ashraf Alshahawy]

Hi everyone ....

I'm using a TabCotrol in my project , and I want to load as many tabs pages as I

need with a PDF control within each tab page

so I used this code :

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

Dim NewAdobePage As New AxAcroPDFLib.AxAcroPDF
Dim tb As New TabPage

TabControl.TabPages.Add(tb)
tb.Controls.Add(NewAdobePage)

End Sub

and now I want to use OpenFileDialog control to load PDF files into any of the

already opened AxAcroPDF controls , How ???

Thanks in advance

[jmcilhinney]

Do you know how to open a file in one of those controls ordinarily? If so then you open a file in one of these exactly the same way. To get a reference to the control in the first place you would get the appropriate TabPage, get its first control and cast it, e.g.

Dim pdfViewer = DirectCast(myTabControl.SelectedTab.Controls(0), AxAcroPDFLib.AxAcroPDF)

That said, I'd suggest that you create your own class that inherits TabPage, adds the control itself and then exposes it via a dedicated property. If you follow the CodeBank link in my signature you can check out my Tabbed Web Browser thread, where I've done exactly that but with a WebBrowser control.

[Ashraf Alshahawy]

Many thanks for your help ... I downloaded your project to practice your idea but after

my VB.net 2008 transferred it , it gives me an error message :

Could not find type 'TabbedWebBrowser.WebBrowserTabControl'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built.

What should I do .... Many thanks in advance.

[jmcilhinney]

You can't just copy and paste code from my project that uses types that I defined. I defined a class that inherited TabPage and created its own WebBrowser. If you want to follow the same principle then you need to define your own class that inherits TabPage and creates its own AxAcroPDF. Likewise, I created a custom TabControl that makes using those custom TabPages easier. If you want to use the same principle then you have to, again, define your own class.

Don't copy and paste any code from my project. Read the code and run the project in the debugger if you want until you understand the principles it's implementing, then write your own code that implements those same principles in a way that is useful to you. Obviously a WebBrowserTabControl is of no use to you because you aren't using any WebBrowsers.

[Ashraf Alshahawy]

I hope that I'm not bothering you , but I downloaded your project entirely , and I faced this

problem before and I'd like to know what is going wrong .... Do I have to add tools to the

project ( Reference ) ??

- And for your first answer :
im pdfViewer = DirectCast(myTabControl.SelectedTab.Controls(0), AxAcroPDFLib.AxAcroPDF)

it works fine for me , many thanks for that code .

[jmcilhinney]

I'm not quite sure what you're asking. I just downloaded the Tabbed Web Browser project I attached to that CodeBank thread and when I opened in in VS 2008 it upgraded and built without issue and I can see the WebBrowserTabControl class in the Solution Explorer so it's obviously defined.

[Ashraf Alshahawy]

Many thanks .... and after I restarted my computer and reopened your project , It works

like a charm ... perhaps it's system error , or maybe I'm using Google Chrome as a default

web browser. And I'm reading your code trying to find my needs.

P.S : What does DirectCast function exactly do ?? is it return a reference or what ??

Many thanks in advance