Setting value of dropdownlist which a data source parameter is bound to
<p>I have some drop down lists on a page which get their SelectedValue from a session variable. This allows the value of the dropdowns to be saved across multiple pages.</p>

<p>Problem is the dropdown selected value is being used as a parameter to a separate data source on the page.</p>

<p>If I try to set the dropdown list's value before the dropdown list is databound, I get an exception because the dropdown list has not been populated yet.
If I try to set the dropdown list's value too late, the other data source will be executed with the original value of the dropdown list instead of it's current.</p>

<p>Is there a proper order to handle these events in?</p>
