Access Content Page Controls from Master page in Asp.Net

Access Content Page Controls from Master page in Asp.Net

Label cotentlbl = (Label)ContentPlaceHolder1.FindControl("lblContent");

TextBox contenttxt = (TextBox)ContentPlaceHolder1.FindControl("txtContent");

DropDownList contentddl = (DropDownListContentPlaceHolder1) .FindControl("ddlcontent");

masterpagelbl.Text = cotentlbl .Text;

masterpagetxt .Text = contenttxt .Text;

contentddl.SelectedIndex = 0;