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How to use Application properties to enforce a correct version for your add-in

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    Sometimes you need your add-in to operate only in the presence of a particular Update Release of Revit due to the presence of specific fixes or compatible APIs.  The following sample code demonstrates a technique to determine if the Revit version is any Update Release after the initial known Revit release.

     

    Code Region: Use VersionBuild to identify if your add-in is compatible

    public void GetVersionInfo(Autodesk.Revit.ApplicationServices.Application app)
    { 
       // 20110309_2315 is the datecode of the initial release of Revit 2012 
       if (app.VersionNumber == "2012" && 
           String.Compare(app.VersionBuild, "20110309_2315") > 0)
       {
           TaskDialog.Show("Supported version", 
                          "This application supported in this version.");
       }
       else
       {
           TaskDialog dialog = new TaskDialog("Unsupported version.");
           dialog.MainIcon = TaskDialogIcon.TaskDialogIconWarning;
           dialog.MainInstruction = "This application is only supported in Revit 2012 UR1 and later.";
           dialog.Show();
       }
    }