Delete Maskined Region from Revit Document using C# -

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i want delete maskined region revit document using c#. error : modifying forbidden because document has no open transaction. exception: modificationoutsidetransactionexception

you have 2 options:

change transactionmode automatic @ class attribute

[transaction(transactionmode.automatic)]

open transaction within command

transaction tr = new transaction(commanddata.application.activeuidocument.document); tr.start("command name here");  // code  tr.commit();

also posted here.


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