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VS2005: PrintDocument programmatorically add EventHandlers

Posted on 2006-07-20
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Last Modified: 2009-07-29
Hello fellow experts,

I'm trying to get some stuff printed; that's all not so difficult, well, you know, but I have this particular situation where I HAVE to programmatorically make the PrintDocument.

This ofcourse puts me in a difficult position; by programmatorically adding the PrintDocument, instead of during design, I also have to programmatorically assign the EventHandlers, and this is where things go awry.

This is the code:

    Private pd As New PrintDocument

        pd.PrinterSettings = New PrinterSettings()
        AddHandler pd.BeginPrint, PrintDocument1_BeginPrint(Me, New PrintEventArgs())
        Dim gr As Drawing.Graphics = Nothing
        AddHandler pd.PrintPage, PrintDocument1_PrintPage(Me, New PrintPageEventArgs(gr, New Drawing.Rectangle(), New Drawing.Rectangle(), New PageSettings()))


ok so first of, the AddHandler requires that I use FUNCTIONS as EventHandlers because it wants a return value; however, I don't want that (and it kinda fubars if it does). anyway, skipping the return value only gives me a warning if i use functions so ok, that's cool.

The second problem is, ofcourse, the EventArgs.
Adding Event Handlers in runtime requires you to add the right EventArgs aswell; I don't know these, so my code basically stops running on the AddHanlder pd.PrintPage line, giving me an error because gr is empty.

So, basically, what I need to know from the experts, is a way to add a printdocument and its eventhandlers (specifically the onBeginPrint and onPrintPage ones) during RUNTIME.

thanks in advance !

cheers,
Andy
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Question by:AndyAelbrecht
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2 Comments
 
LVL 14

Accepted Solution

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jjardine earned 2000 total points
ID: 17147697
To get the correct event args  just create the events during design time and then remove the Handles clause.  Then when you call addhander during runtime you just do AddressOf the sub.

This would make your addHandler look like this

AddHandler pd.BeginPrint, AddressOf PrintDocument1_BeginPrint
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by:AndyAelbrecht
ID: 17163420
*doh* :)

thx !
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