Revit API-网格和级别-GetDatumExtentTypeInView-网格问题

Question

我正在尝试获取网格范围类型。它要么是“模型”，要么是“ specificView”

使用我拥有的代码，我能够获得Levels范围类型，但不能获得Grid范围类型。

到目前为止，我已经找到了有用的资源。

https://forum.dynamobim.com/t/switching-between-2d-and-3d-extent-levels-grid/10980/2

https://www.revitapidocs.com/2019/b3498ccf-1180-e0fd-502c-6c767f5b42cc.htm

https://disqus.com/home/discussion/revit-api-docs/setverticalextents_method_60/#edit-3254927585

这是我收到的错误：

Exception thrown: 'Autodesk.Revit.Exceptions.ArgumentException' in RevitAPI.dll
Error StackTrace:    at Autodesk.Revit.DB.DatumPlane.GetDatumExtentTypeInView(DatumEnds datumEnd, View view)
   at ChangeGridExtentsTo2D.Command.Execute(ExternalCommandData commandData, String& message, ElementSet elements)
Error Data: System.Collections.ListDictionaryInternal
Error Source: RevitAPI
Error TargetSite: Autodesk.Revit.DB.DatumExtentType GetDatumExtentTypeInView(Autodesk.Revit.DB.DatumEnds, Autodesk.Revit.DB.View)

到目前为止是我的代码：

            FilteredElementCollector colGrids = new FilteredElementCollector(doc)
                .WhereElementIsNotElementType().OfCategory(BuiltInCategory.OST_Grids)
                .OfClass(typeof(Grid));
            Debug.WriteLine("colGrids count: " + colGrids.GetElementCount()); //output is 3 which is correct


            FilteredElementCollector colLevels = new FilteredElementCollector(doc)
                .WhereElementIsNotElementType().OfCategory(BuiltInCategory.OST_Levels)
                .OfClass(typeof(Level));
            Debug.WriteLine("colLevels count: " + colLevels.GetElementCount()); // output is 7 which is correct


            using (Transaction tx = new Transaction(doc))
            {
                try
                {
                    tx.Start("Changing extends to 2d");

                    foreach (DatumPlane xLevels in colLevels)
                    {
                        //x.GetDatumExtentTypeInView(DatumEnds.End0, uidoc.ActiveView);

                        Debug.WriteLine(xLevels.Name + ": " + xLevels.GetDatumExtentTypeInView(DatumEnds.End0, uidoc.ActiveView));
                        Debug.WriteLine(xLevels.Name + ": " + xLevels.GetDatumExtentTypeInView(DatumEnds.End1, uidoc.ActiveView));
                    }

                    foreach (DatumPlane xGrids in colGrids)
                    {

                        Debug.WriteLine(xGrids.Name + ": " + xGrids.GetDatumExtentTypeInView(DatumEnds.End0, uidoc.ActiveView));

                    }
                    tx.Commit();
                }
                catch (Exception e)
                {
                    Debug.WriteLine("Error StackTrace: " + e.StackTrace);
                    Debug.WriteLine("Error Data: " + e.Data);
                    Debug.WriteLine("Error Source: " + e.Source);
                    Debug.WriteLine("Error TargetSite: " + e.TargetSite);

                    tx.RollBack();

                }
            }

PS-我是VS IDE的新手，所以如果有人有遇到更多详细错误的提示，例如：

what line the error occurs on
the variable or function it crashed at
or anything like that

那将是巨大的帮助

Answer 1

我建议您通过一些简单的入门tutorial on debugging in Visual Studio IDE。

在调试器中，您可以逐行浏览代码，检查所有变量的值，甚至更多，从而一口气回答上面的所有请求。