Multiple instances of pdf editor with multiple custom PdfEditorCommandHandlers

[coblejesse]

Hi,

I have multiple instances of the pdf editor control in different forms, and a custom PdfEditorCommandHandler for the cmd.save command. But it seems as though only the last PdfEditorCommandHandler instance gets called when hitting save in any open pdf editor control.

So if I have two instances of the pdf editor control open, A and B. If first A is opened, and the cmd.save cmd.Handler is set to an instance of PdfEditorCommandHandler, and then B is opened, and it's instance of PdfEditorCommandHandler is set to it's cmd.save cmd.Handler, then when hitting save in A, then B's PdfEditorCommandHandler is called, and B's document is saved. Not A.

Code: Select all

            //this is set for each instance of the pdf editor control
	    PdfEditorCommandHandler cmdHandler = new PdfEditorCommandHandler();
            PDFXEdit.IUIX_Cmd cmd;
            cmd = GetIUIX_Cmd("cmd.save");
            cmd.Handler = cmdHandler;
            
            //when firing the event OnSaveEvent in cmdHandler, the last instance of pdf editor control that was set to the 
            //last instance of PdfEditorCommandHandler instantiated is being called, and then subsequently the wrong document is saved.
            cmdHandler.OnSaveEvent += SaveEvent;
            
            public PDFXEdit.IUIX_Cmd GetIUIX_Cmd(string cmd)
            {
                  return uiInst.CmdManager.Cmds.Find(cmd);
       	    }

Thanks in advance for the help. I have been working on this for about a day and a half now, and am not sure where to go from here.

[zarkogajic]

Hi,

cmd.Handler = cmdHandler;

This is why. A command is "a singleton" and by this line of code you assign this cmdHandler to the command (never mind in what Control and all previous handlers are ignored).

Anyhow, why having multiple instances of IUIX_CmdHandler?

You can have only one to handle each and every command - never mind how many pxv_Controls you have.

When the command is executed use IPXV_Inst's GetMainViewFromUIObj(pOwner, false) this will return the MainView. Compare this to the Frame.View of your pxvControls and you will know in what Control the cmd.save was executed.

-žarko

[Sasha - Tracker Dev Team]

Thanks for the assistance žarko.

[coblejesse]

Thanks very much for the information!

This helps so much:
"When the command is executed use IPXV_Inst's GetMainViewFromUIObj(pOwner, false) this will return the MainView. Compare this to the Frame.View of your pxvControls and you will know in what Control the cmd.save was executed."

[Sasha - Tracker Dev Team]