title: How can I present a pick list in a SharePoint 2010 External List form from an association in my BDC model?
body: <p>I have created associations between entities in my .Net assembly BCS model.  When I load the model into SharePoint and create external lists, I automatically get an External Item Picker control; enabling me to select an item from a list.</p>
  
  <p>This is great because I don't have to program this pick list one way or another...</p>
  
  <p>The problem is whenever I modify the form in InfoPath, the External Item Picker seems to break.  When I select an item using the External Item Picker (in the InfoPath form) I get an error message "There has been an error while processing the form".  This message is displayed as soon as I select an item and try to leave the field; WITHOUT submitting the form.</p>
  
  <p>Can anyone tell me why the External Item Picker breaks whenever I modify and publish the list form from InfoPath 2010?</p>
  
  <p>It's driving me nuts!</p>
  
  <p>Thanks!</p>