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Active Contributor
Fredrik.Larsen
Posts: 46
Registered: ‎11-28-2012
Message 1 of 7 (405 Views)
Accepted Solution

Cancel change active document

405 Views, 6 Replies
01-24-2013 06:19 AM

Hi

How can I stop changing active document?

 

I was thinking I could use this, but I don't know how to cancel it in the event handler:

 

AcadApp.DocumentManager.DocumentToBeActivated += new DocumentCollectionEventHandler(DocumentManager_DocumentToBeActivated);

static void DocumentManager_DocumentToBeActivated(object sender, DocumentCollectionEventArgs e)
{
    // Messagebox to ask if user are sure
    bool AreYouSureYouWantToChangeActiveFile = MessageBox....

    if(!AreYouSureYouWantToChangeActiveFile)
        //cancel change active file somehow...???
}

 

Moderator
Alexander.Rivilis
Posts: 1,406
Registered: ‎04-09-2008
Message 2 of 7 (392 Views)

Re: Cancel change active document

01-24-2013 01:47 PM in reply to: Fredrik.Larsen

DocumentCollection.DocumentActivationEnabled property can help you


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Active Contributor
Fredrik.Larsen
Posts: 46
Registered: ‎11-28-2012
Message 3 of 7 (378 Views)

Re: Cancel change active document

01-25-2013 12:06 AM in reply to: Alexander.Rivilis

Hi

I could not get it to work. When I set the property you mentioned the active document has already changed. And if I set the property to false at a earlier stage I will never come to the listener. Any ideas?

static void DocumentManager_DocumentToBeActivated(object sender, DocumentCollectionEventArgs e)
{
            DialogResult dialogResult = MessageBox.Show("You are changing the active drawing. Continue?", "Active drawing change", MessageBoxButtons.YesNo);
            if (dialogResult == DialogResult.Yes)
            {
                AcadApp.DocumentManager.DocumentActivationEnabled = true;
                RemoveDocumentToBeActivatedListener();
            }
            else if (dialogResult == DialogResult.No)
            {
                AcadApp.DocumentManager.DocumentActivationEnabled = false;
            }
}

 

Moderator
Alexander.Rivilis
Posts: 1,406
Registered: ‎04-09-2008
Message 4 of 7 (374 Views)

Re: Cancel change active document

01-25-2013 01:23 AM in reply to: Fredrik.Larsen

1. You can disable switching of Document's at all if you call:

AcadApp.DocumentManager.DocumentActivationEnabled = false;

 but not in handler of event of DocumentToBeActivated.

2. If you have to prevent switching in a handler of event of DocumentToBeActivated you have to:

a) save previous Document and set flag of switching in this handler.

b) in command reactor switch Document back to previous Document and clear flag of switching.

 


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Valued Mentor
DiningPhilosopher
Posts: 370
Registered: ‎05-06-2012
Message 5 of 7 (347 Views)

Re: Cancel change active document

01-28-2013 01:22 AM in reply to: Fredrik.Larsen

Perhaps you can explain why you want to prevent a document from being activated?

Active Contributor
Fredrik.Larsen
Posts: 46
Registered: ‎11-28-2012
Message 6 of 7 (343 Views)

Re: Cancel change active document

01-28-2013 01:29 AM in reply to: DiningPhilosopher

I have created an application that scans and does something with the active document and I haven't implemented support for what happens when active document is changed. So for my demo version I thought I could just prevent the user from changing the document.

Moderator
Alexander.Rivilis
Posts: 1,406
Registered: ‎04-09-2008
Message 7 of 7 (339 Views)

Re: Cancel change active document

01-28-2013 01:45 AM in reply to: Fredrik.Larsen

While command with CommandFlags.Modal is active user can not switch active document. More precisely when switching to another document, the command will paused and wait for switch back.


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