title: Want to create a combobox in dojo where the dropdown menu and autocompletion kicks in only after the user inputs 4 characters
body: <p>I wanted to create a combobox in dojo where the drop down menu and autocompletion kicks in only after the user inputs 3 characters. The current default will start showing the drop down menu and also autocomplete when the user enters the first character. </p>
  
  <p>Are there any attributes for getting this behaviour ? can i overload some functions ? Or should i write a separate widget of my own ?</p>