title: How to access content page controls from master page in asp.net
body: <p>it is very easy to access master page control from content page like </p>
  
  <pre><code>protected void Page_Load(object sender, EventArgs e)
  {
      // content page load event
      DropDownList thisDropDown = this.Master.FindControl("someDropDown") as DropDownList;
      userLabel.Text = thisDropDown.SelectedValue;
  }
  </code></pre>
  
  <p>but how could i access controls of content page from master page. suppose a textbox there in content page and one button is there in master page. i want that when i will click on master page button then i want to show the text of textbox in the content page in the label of master page. how to achieve it. please help me with code sample. thanks.</p>