title: EXTJS Combo set problem
body: <p>I run into an interesting problem while was using combos in input form. My form contains combos that get data from json stores. It works fine when adding new record, but when the form is opened for editing an existing record, sometimes the id appears as selected not its value (eg: there's 5 instead of "apple"). I think it tries to set the value before it finishes loading the combo.</p>
  
  <p>I check Combo store count and it returns zero this means selection done before combo is loaded. i try to set value in load event and fire select event but it does not work
  It works well when i reselect another record at that time store is loaded</p>
  
  <p>i also see this thread but it does not give feasible answer
  <a href="https://stackoverflow.com/questions/2506312/extjs-combo-setting-problem">ExtJS combo setting problem</a></p>
  
  <p>Is there anyway to set its text?</p>
  
  <p>Can anybody give me right soln please?</p>