title: Checkbox added programmatically not found
body: <p>I add checkboxes that way:</p>
  
  <pre><code>protected void Page_Load(object sender, EventArgs e)
  {
      if (!IsPostBack)
      {
          CheckBox FieldCh = new CheckBox();
          FieldCh.ID = "Field_" + Field.Id;
          Panel1.Controls.Add(FieldCh);
      }
  }
  </code></pre>
  
  <p>but when I try to get this checkboxes from form:</p>
  
  <pre><code>foreach (Control item in FindControl("FieldForm").Controls)
    {
     if (item is Panel)
      {
        foreach (Control checkbox in item.Controls)
  </code></pre>
  
  <p>i cannot find this checkboxes :/ This could be problem with runat=server? I not find this property in Checkbox ..</p>