Visual Studio :: Use Parameters In SQL Statements In Visual Web Developer 2010 Express?

I have a form that I'm working on in Visual Web Developer 2010 Express. I have a dropdown list to choose a data from the database. I want to use the chosen list item to populate a GridView object. This seems like it should be a simple thing to do.I have a data connection which uses a fixed SQL statement to populate the dropdown list and that works fine. I can select an item on the list and retrieve the correct information for the next query (namely an ID value for the next SQL statement).I have the data connection with another SQL statement to populate the gridview and that works fine. The gridview is currently just showing the entire dataset (it doesn't use the item that was selected in the dropdown list.Now I want to change the gridview's data connection to use the selected item in the dropdown list as a parameter to modify the SQL statementWhen I look at the properties of the data connection for the gridview data, I can bring up the Query properties and see the select statement. I also see the properties panel. I can add a property Name (Mine is "ID"). I then chose "Control" in Parameter Source and selected the ControlID for the dropdown list that has the ID information that I want to use for the parameter. I went into the advanced properties and modified some of the information because the ControlID is a Text field and the Database Column is a BigInt.My select statement looks like this:

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What I don't know is how to get the parameter into the select statement.I've tried:

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