I have a form with two drop down combo boxes.

The first one is a list of People that is populated based off a simple view,
the Datasource=ViewPersonsWithDocumentsBindingSource, the Value Member is set to PersonID

When a person is selected in the first drop down, I want to populate the second drop down based off the value member in the first drop down.

The second one is a list of documents available based off the person selected in the first combo box, and there is a stored procedure for that one and it requires a parameter which should be the personID.
The datasource=ctLuDocumentsByPersonIDBindingSource

The form runs, but of course the second combobox doesn't populate because the parameter is not set to anything. I'm assuming that in the ComboBox1_SelectedIndexChanged method, I need to put some code to set the parameter and refresh the datasource. I just don't know how to do that. I'm using vb.net

Any pointers?

Thanks
Kirk