vtkDataSetReader does not properly report progress.
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
vtkDataSetReader internally creates a reader object depending on the input dataset type. The problem is that any progressevent observers observing the vtkdatasetreader are not propagated to the internally created specific dataset readers. Thus, observing the vtkdatasetreader for progress events is useless since the progress events generated by the internal dataset reader objects can not be observed.