If force is not set and path is already under version control, return the error SVN_ERR_ENTRY_EXISTS. If force is set, do not error on already-versioned items. When used on a directory in conjunction with the recursive flag, this has the effect of scheduling for addition unversioned files and directories scattered deep within a versioned tree.

Gets the last exception thrown by a Subversion api command to which this argument was provided

Gets or sets a boolean indicating whether the call must throw an error if the operation is cancelled IsLastInvocationCanceled is true and the returnvalue false if the operation was canceled. (The LastException property is set to the cancel exception)

Gets or sets a boolean indicating whether the call must throw an error if an exception occurs. If an exception would occur, the method returns false and the LastException property is set to the exception which would have been throw.