Code Behind Syntax when using a Stored Procedure

In the following code behind what is the difference in the syntax if using a stored procedure.

Protected Sub InsertShipper (ByVal Source As Object, ByVal e As EventArgs)
  SqlDataSource1.Insert()
End Sub

The code above uses a T-SQL insert statement on an aspx page to insert a record into the database when button is clicked. I do know that the SelectCommandType on the aspx page will = Stored Procedure. However, I know the Insert of the ****SqlDataSource1.Insert()*** above will be different but I do not know the exact code that would be needed to fire the Stored Procedure and perform the insert.. Any help or guidance is greatly appreciated.