Question

I have two parameters, @AccountID and @SourceType, and they are both drop-downs.

Here is the declaration of the @SourceType parameter in the stored procedure:

@SourceType BIT = NULL,
/*
 * Works if @AccountID is not null
 * (should only be used if @AccountID has a single value)
 *
 * 0 - Owned by @AccountID
 * 1 - External (not owned by @AccountID)
 */

It should only be selectable, if AccountID has a single value (and it’s a multi-select with about 50 options).

Answer 1

I suggest you create a dataset that looks at the @AccountId parameter and returns options based on the number of values selected.

Using the count attribute of a parameter will enable you to check if more than one value was selected. E.g. Parameters!Parameter.Count.

Then based on the number of returned counts you can set the @SourceType parameter options.