aspx & aspx.cs

 
  <%@ Page Title="" Language="C#" MasterPageFile="MasterPage.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 
   
  <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> 
      <link href="css/about.css" rel="stylesheet" type="text/css" /> 
  </asp:Content> 
   
  <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> 
      
              <div class="yazibas"> 
                  <asp:Label ID="Label1" runat="server"></asp:Label> 
              </div> 
              <div class="yazi"> 
                  <asp:Label ID="Label2" runat="server"></asp:Label> 
              </div> 
          
  </asp:Content>

 
  public partial class about : System.Web.UI.Page 
  { 
      protected void Page_Load(object sender, EventArgs e) 
      { 
            Label1.Text="deneme";      
      } 
  }