how to find controls in usercontrols and pass it to string builder
<p>i can iterate through the controls which are on panel by this two code</p>

<pre><code>       Form4 fl = new Form4();
       StringBuilder sb = new StringBuilder();
       foreach (Control c in panel1.Controls)
       {
           if (c is ComboBox)
           {
               ComboBox cb = (ComboBox)c;
               sb.Append(cb.Text);
               fl.comboBox1.Text = sb.ToString();
               fl.Show();
           }

       } 
</code></pre>

<p>OR by this
        List lst = new List();
       void GetComboBoxValues()</p>

<pre><code>    StringBuilder sb = new StringBuilder();
    {
      sb.Append(c.Text + "\r\n");
    }
   MessageBox.Show(sb.ToString());
     }
</code></pre>

<p>but i add a panel and on panel a usercontrol which contains a combobox and textbox how that can be possible to find controls and add to the string builder 
    so i thought iterating through usercontrol and finding the text and adding it to the string builder,is that possible?</p>
