This example shows how to create the Extract data source, replace existing dashboard data sources with Extract data sources and update the Extract data file.
The DashboardViewer loads a dashboard. The dashboard is initially bound to the Microsoft SQL Server database file (.mdf) with the DashboardSqlDataSource.
Click the Create Extract Data Source button to create the DashboardExtractDataSource based on the original data source, add the newly created data source to the dashboard, iterate over dashboard items to change the data source settings, and finally save the modified dashboard and the Extract data file.
Click the Update Extract Data Source button to load current data to the Extract data file bound to the dashboard.
Click the Async Update Extract Data Sources button to asynchronously update all extract data sources bound to the dashboard.
