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Normal Topic Popup window on node click (Read 2730 times)
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Popup window on node click
Jul 16th, 2009 at 10:37am
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Hi,

I'm using the imagemap mode of netdiagram. I need a popup window to appear whenever i click on a node and need the popup to disappear if i click on an empty area. Is this behaviour possible? I couldnt find an event which is fired when i click on an area which does not have a node.

Please do let me know how this can be done.

Thanks
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Stoyo
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Re: Popup window on node click
Reply #1 - Jul 16th, 2009 at 12:07pm
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Hi,

There is no built-in event raised in that case. You might add a handler to the onclick event of the DIV rendered by DiagramView. The DIV's id is the same as DiagramView.ClientID. In the handler check if the target element is an AREA or an IMG. If it's an IMG, the click was on an empty area. E.g. if you are using Ajax for ASP.NET for client side scripting:

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// in the onload handler
$addHandler(diagViewDiv, "click", onClick);

// in onClick
if (e.target.nodeName == 'IMG')
	hidePopup();


I hope that helps,
Stoyan
  
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Re: Popup window on node click
Reply #2 - Jul 17th, 2009 at 9:09am
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Hi,

I tried adding an event handler to the onClick event, but it throws a compile-time error that the diagramView does not have a onClick event. Since the div tag is created only dynamically , how do i do this?Should i be using delegates? I'm not using Ajax.

Thanks for helping
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Re: Popup window on node click
Reply #3 - Jul 17th, 2009 at 1:16pm
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Hi,

What do you mean by compilation error, are you trying to add an event handler on the server side? You must handle the DIV's event on the client side using JavaScript.

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Re: Popup window on node click
Reply #4 - Jul 20th, 2009 at 11:37am
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Thanks a lot!

I got it working.Smiley

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