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Hi , I am currently testing several . NET Desktop Diagramming Libraries for our company . While NOV Diagramming for . NET looks really promising , we encounter several weird issues where Exceptions are raised , that in our opinion should not be . & nbsp ; The first problem occurs , when we select more than 20 NShapes in our NDiagrammingViewControl and try to move them around . We get two NullReferenceExceptions from the Library . I tested this with different sets of 21 + NShapes and the error occured every time . With 20 NShapes the moving works correctly . Next we get a IndexOutOfRangeException when we do the following steps : 1 . Double click on a NShape to edit the text . 2 . Clear the Textfield . 3 . Press the left mouse button inside the edit field . 4 . Move the mouse outside of the edit field while keeping the left mouse pressed . The last problem that came up was regarding the shortcuts. When no NShape is selected and we press the shortcut Ctrl - S for save , an ArgumentNullException is raised . When we press Ctrl - N an Invalid OperationException is thrown when either one of the three options ( Save , Don ' t save , Cancel ) is clicked . We also get a UnauthorizedAccessException , when Visual Studio is not started with Administrator privileges , because the library cannot access the registrykey ' HKEY_LOCAL_MACHINE \ Software \ Wow6432Node \ Nevron \ License5 '. I attached a solution with which you should be able to replicate these problems . Please note , that NOV Diagram is currently regarded as our favorite diagramming library , but these problems have to be solved before we think about the final integration . Best regards ,& nbsp ; Markus
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Group: Forum Members
Last Active: Last Week
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Hi Markus , We must have missed this post - apologies for the delayed response . We found and fixed the exception when you drag the mouse inside the text field and will publish a SP early next week . Regarding the other exception - the licensing system stores the machine key in the registry in order to not regenerate it each time ( this is done for performance reasons as querying machine information is kind of slow ). This exception is handled though .
Best Regards, Nevron Support Team
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