Revit 二次开发之IFailuresProcessor

添加操作失败的自定义处理代码。

自：http://revit.5d6d.com/thread-846-1-3.html

[Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Automatic)]
[Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
public class MyFailuresUI : IExternalApplication
{
    static AddInId m_appId = new AddInId(new Guid("9F179363-B349-4541-823F-A2DDB2B86AF3"));
    public Autodesk.Revit.UI.Result OnStartup(UIControlledApplication uiControlledApplication)
    {
        IFailuresProcessor myFailUI = new FailUI();
        //Autodesk.Revit.ApplicationServices.Application.RegisterFailuresProcessor(myFailUI);
        return Result.Succeeded;
    }

    public Autodesk.Revit.UI.Result OnShutdown(UIControlledApplication application)
    {
        return Result.Succeeded;
    }

    public class FailUI : IFailuresProcessor
    {
        public void Dismiss(Document document)
        {
            // This method is being called in case of exception or document destruction to 
            // dismiss any possible pending failure UI that may have left on the screen
        }

        public FailureProcessingResult ProcessFailures(FailuresAccessor failuresAccessor)
        {
            IList<FailureResolutionType> resolutionTypeList = new List<FailureResolutionType>();
            IList<FailureMessageAccessor> failList = new List<FailureMessageAccessor>();
            // Inside event handler, get all warnings
            failList = failuresAccessor.GetFailureMessages(); 
            string errorString = "";
            bool hasFailures = false;
            foreach (FailureMessageAccessor failure in failList)
            {
                // check how many resolutions types were attempted to try to prevent
                // entering infinite loop
                resolutionTypeList = failuresAccessor.GetAttemptedResolutionTypes(failure);
                if (resolutionTypeList.Count >= 3)
                {
                    TaskDialog.Show("Error", "Cannot resolve failures - transaction will be rolled back.");
                    return FailureProcessingResult.ProceedWithRollBack;
                }

                errorString += "IDs ";
                foreach (ElementId id in failure.GetFailingElementIds())
                {
                    errorString += id + ", ";
                    hasFailures = true;
                }
                errorString += "\nWill be deleted because: " + failure.GetDescriptionText() + "\n";
                failuresAccessor.DeleteElements(failure.GetFailingElementIds() as IList<ElementId>);
            }
            if (hasFailures)
            {
                TaskDialog.Show("Error", errorString);
                return FailureProcessingResult.ProceedWithCommit;
            }

            return FailureProcessingResult.Continue;
        }
    }
}

end