How To Default SSRS Parameter to Current Month using an SSAS Data Source

When dealing with report parameters that involve time, I usually like to default the report to the current unit of time used by the report, often month. When a user views the report in a particular month the parameter will always default to that month, saving the user from having to select it every time.

There are two elements to making this happen. One is to define the current month in your Time dimension, and the other is to build the dataset into your report to feed the default for the Time parameters.