Unable to get property 'parentNode' error when trying to set ImageViewerZoomToInteractiveMode

#1 Posted : Wednesday, June 7, 2017 1:05:01 PM(UTC)

huey.hoague

Groups: Registered
Posts: 18

When I call the SetInteractive function it is setting the below value.
imageViewer.defaultInteractiveMode = new lt.Controls.ImageViewerZoomToInteractiveMode();

When I do I get back the following error message
Unable to get property 'parentNode' of undefined or null reference

my other functions like below are working fine.
imageViewer.zoom(lt.Controls.ControlSizeMode.fitWidth, 1, imageViewer.defaultZoomOrigin);
imageViewer.reverse = false;

#2 Posted : Friday, June 9, 2017 9:14:19 AM(UTC)

Hadi

Groups: Manager, Tech Support, Administrators
Posts: 218

Was thanked: 12 time(s) in 12 post(s)

Please see the attached code. I am able to set the default interactive mode without issue.

HTML:

Code:

<!DOCTYPE html> 
<html lang="en" xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
   <meta charset="utf-8" /> 
   <title>LEADTOOLS Demo</title> 
   <!-- LEADTOOLS Libraries --> 
   <script type="text/javascript" src="Scripts/Leadtools.js"></script> 
   <script type="text/javascript" src="Scripts/Leadtools.Controls.js"></script> 
   <script type="text/javascript" src="Scripts/App.js"></script> 
</head> 
<body> 
   <!-- DIV to use as the container for the LEADTOOLS image viewer --> 
   <div id="imageViewerDiv" style="width: 600px; height: 600px; background-color: darkgray; float:left"></div> 
</body> 
</html>

JavaScript:

Code:

var imageViewer;

window.onload = function () { 
	InitViewers();
	LoadImages();
}; 

function InitViewers(){
	var imageViewerDiv = document.getElementById("imageViewerDiv"); 
    var createOptions = new lt.Controls.ImageViewerCreateOptions(imageViewerDiv); 
	createOptions.useElements = true;
    imageViewer = new lt.Controls.ImageViewer(createOptions); 
	imageViewer.defaultInteractiveMode = new lt.Controls.ImageViewerPanZoomInteractiveMode();
}

function LoadImages(){
	imageViewer.imageUrl = "Images/Cannon.png"; 
}

File Attachment(s):

imageviewertest.zip (476kb) downloaded 217 time(s).

Hadi Chami
Developer Support Manager
LEAD Technologies, Inc.

Notification

Unable to get property 'parentNode' error when trying to set ImageViewerZoomToInteractiveMode - Running into error trying to use interactive mode


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