title: enter to submit for different forms in master page
body: <p>hello  i have created the both popup sign in form (in menu) and search box 
  i have already set enter to submit action for signin form using this code in codebehind</p>
  
  <pre><code>Page.Form.DefaultButton = btnSignIn.UniqueID
  </code></pre>
  
  <p>and now i want to set enter to submit action also for search box i have tried same way as sign in form using </p>
  
  <pre><code>Page.Form.DefaultButton = btnSearch.UniqueID
  </code></pre>
  
  <p>but both button are conflicting any one only works please guide me for how make both working thanks </p>