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got script error when using canvas on DiagramView (Read 2889 times)

chieh Junior Member Offline I love YaBB 1G - SP1! Posts: 64 Joined: Aug 18^th, 2010	got script error when using canvas on DiagramView Nov 18^th, 2011 at 11:20am	Print Post
	Dear Sir/Madam, I had download latest version of NetDiagram 4.1 and installed it successfully. Currently I want to use DiagramView object which its ClientSideMode is canvas. Then I created a new test project to test that functionality. There is one page called Default.aspx in this project. Following the instruction, I had copied MindFusion.Diagramming.js and JDiagram.jar to the project and then add ScriptManager on this page, When I run this project I got an error script message shown in the following. Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; EasyBits GO v1.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET4.0C) Timestamp: Fri, 18 Nov 2011 11:16:38 UTC Message: Object doesn't support this property or method Line: 2831 Char: 5 Code: 0 URI: http://localhost:1587/TestPM/ScriptResource.axd?d=0ZlJNC0UZRFQpsfj0IMjGJYDu7Ttrr... Is there any example of canvas mode or suggestion? Many thanks


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: got script error when using canvas on DiagramV Reply #1 - Nov 18^th, 2011 at 12:06pm	Print Post
	Hi, From the user agent screen it seems you are using IE8. Canvas support in Internet Explorer was implemented with version 9. Stoyan


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chieh Junior Member Offline I love YaBB 1G - SP1! Posts: 64 Joined: Aug 18^th, 2010	Re: got script error when using canvas on DiagramV Reply #2 - Nov 18^th, 2011 at 1:15pm	Print Post
	Hello Are they not support IE 8? Is there any chance for IE 8 because still lots of people using that. So I use Chrome to test that function instead. Steps I did in the following, 1. Drag and drop three objects (DiagramView, Overview and ShapeListBox) from toolbox in visual studio, 2. Define custom shape list for ShapeListBox and assign DiagramView�s ID to DiagramViewID 3. Run project it works fine Because clientsidemode=�JavaApplet� is default, once I change all DiagramView, Overview and ShapeListBox to Canvas, there is no error from these three objects, but Shape list came out as default one and not the one I defined. This is setting of ShapeListBox, <ndiag:ShapeListBox ID="ShapeListBox1" runat="server" Style="background-color: white" ShapeLibraryLocation="LeanIcons.shl" ClientSideMode="Canvas"> </ndiag:ShapeListBox> If I change it to JavaApplet on ShapeListBox only, I can see the custom shape list but cannot drag and drop to the diagram. So does it support custom shape in canvas or how to configure it properly? Many thanks


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: got script error when using canvas on DiagramV Reply #3 - Nov 18^th, 2011 at 2:29pm	Print Post
	Hi, No, IE8 does not support the Canvas element. You could use the explorercanvas library to emulate a canvas via the IE's VML feature. We haven't tested it, and probably canvas mode will be very slow in IE8 anyway, both because of the much slower JavaScript interpreter there and because of the canvas emulation layer. Unfortunately we haven't implemented support for custom shapes in Canvas mode yet. So the ShapeLibraryLocation property is ignored there and you can use only ShapeFilter to show a subset of the built-in shapes. If you need custom shapes in order to show bitmap images in the listbox, this can be done in the current version by setting the ImageURL property of nodes in the listbox, instead of setting their shapes. Stoyan


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