Hide();UnHide();

//

显示或隐藏视图中选中的元素

[Transaction(TransactionMode.Manual)]

[Regeneration(RegenerationOption.Manual)]

//

[Journaling(JournalingMode.NoCommandData)]

public

 

class

 HideUnHideSelectInView : IExternalCommand

{

    

public

 Result Execute(ExternalCommandData commandData, 

ref

 

string

 message, ElementSet elements)

    {

        UIDocument uiDoc 

=

 commandData.Application.ActiveUIDocument;

        Selection selection 

=

 uiDoc.Selection;

        

if

 (selection.Elements.Size 

==

 

0

)

        {

            MessageBox.Show(

"

请选择

"

);

            

return

 Result.Cancelled;

        }

        Transaction ts 

=

 

new

 Transaction(uiDoc.Document, 

"

HideUnHide

"

);

        ts.Start();

        Autodesk.Revit.DB.View view 

=

 uiDoc.Document.ActiveView;

        

//

判断在此视图下是否可以隐藏

        

foreach

 (Element el 

in

 selection.Elements)

        {

            

if

 (el.CanBeHidden(view) 

==

 

true

)

            {

                ElementSet elementSet 

=

 

new

 ElementSet();

                elementSet.Clear();

                elementSet.Insert(el);

                

if

 (el.IsHidden(view) 

==

 

true

)

                {

                    view.Unhide(elementSet);

                }

                

else

                {

                    view.Hide(elementSet);

                }

            }

        }

        ts.Commit();

        

return

 Result.Succeeded;

    }

}

from: