it is very easy to access master page control from content page like
protected void Page_Load(object sender, EventArgs e) { // content page load event
You can find control by using this:
ContentPlaceHolder contentPage = Page.MasterPage.FindControl("ContentPlaceHolder1") as ContentPlaceHolder; Label lblHead =(Label)contentPage.FindControl("lblHeading"); Response.Write(lblHead.Text);
Source: http://xpode.com/ShowArticle.aspx?ArticleId=629