Here is one idea:
1. You have an SQL Datasource set up on the page (e.g. the Select, Update, Insert and Delete queries are there).
2. You have RadSCheduler on the same page - all settings are set except the DataSourceID property.
3. In Page_Load of the page you set the connection string
of the datasource, set the DataSourceID property of the Scheduler to point to that datasource and call the DataBind() method of the scheduler.
I hope this will get you started.
the Telerik team