Saves the contents of all parts and relationships that are contained in the package.
Assembly: WindowsBase (in WindowsBase.dll)
internally calls the derived class's FlushCore implemetation to perform the actual format-specific flush operation. The derived class's FlushCore method is responsible for actually saving the part and relationship content to the specific physical derived class implementation.
By default, a ZipPackage derived implementation of the abstract Package base class is provided and used. In the default operation, internally calls FlushCore to save the parts and relationships in a ZIP file package.Notes to Inheritors
internally calls the derived class's FlushCore method to actually flush the part based on the physical format implemented in the derived class.