When you use the Designer Web control, you can load reports into it by specifying a value for one of two properties:

• ReportName loads the first report with the specified name.
  IMPORTANT: Multiple reports can share the same name, so using the ReportName property does not guarantee that the same report is loaded every time.
• ReportID loads the unique report with the specified ID. When this is specified, the ReportName property is ignored.

A third property, ReportAction, tells the designer how to open the report. ReportAction has two enumerated values:

• Design is the default value for ReportAction, and tells the designer to open the report in Design view.
• Preview tells the designer to open the report in the Preview tab.