Enables worksharing in the document. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 17.0.0.0 (17.0.1090.0) 
  Since:  2014 
Syntax
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Parameters
- worksetNameGridLevel
 -  Type:  System String  
Name of workset for grids and levels. 
- worksetName
 -  Type:  System String  
Name of workset for all other elements. 
Remarks
 The document's Undo history will be cleared by this command. As a result, this command and others executed before it cannot be undone. 
 All transaction phases (e.g. transactions transaction groups and sub-transaction) that were explicitly started must be finished prior to calling this method.
Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | worksetNameGridLevel is an empty string. -or- worksetName is an empty string. -or- worksetNameGridLevel cannot include prohibited characters. -or- worksetName cannot include prohibited characters. | 
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL | 
| Autodesk.Revit.Exceptions ForbiddenForDynamicUpdateException | This method may not be called during dynamic update. | 
| Autodesk.Revit.Exceptions InvalidOperationException | The document does not allow worksharing to be enabled. -or- This Document has is in an edit mode or is in family mode. -or- This Document is a workshared document. -or- There is a transaction phase left open (such as a transaction, sub-transaction of transaction group) at the time of invoking this method. | 
| Autodesk.Revit.Exceptions OperationCanceledException | Enabling worksharing was cancelled. |