title: dynamic hiddenfield after a postback
body: <p>suppose you save data into a dynamic hidden field ,which is created dynamically during the handling of some postback event.</p>
  
  <p>what is the best way to retrieve it from this field upon a postback, (besides searching the request for the key of this hidden field and then retrieving the corresponding value as in the code below)?</p>
  
  <pre><code>protected void Button2_Click(object sender, EventArgs e)
  {
      bool found = false;
      for (int i=0; i&lt;this.Request.Form.Keys.Count; i++)
      {
          string item = this.Request.Form.Keys[i];
          if ( item=="Hidden1")
          {
              Literal6.Text = Request.Form.GetValues(i)[0];
              found = true;
          }
      }
  
      if (found==false)
      {
          Literal6.Text = "Hidden1 is not found";
      }
  
  }
  </code></pre>