title: How to prevent FileUpload control from clearing on postback?
body: <p>I'm having some trouble with the FileUpload control and was wondering if I could get some help.</p>
  
  <p>On my page I have a FileUpload control, and a drop down list. </p>
  
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  <p>So the user browses to the file they want, and then select an option from the drop down (which enables some checkboxes that are also on the page for use, depending on what they select in the drop down). This causes the FileUpload control to become empty, and now the user must browse to the file they wanted again.</p>
  
  <p>Is there anyway to prevent the FileUpload control from losing its contents during the PostBack?</p>