// 用户控件源码

 namespace wzjr.control

 {

     public partial class Topic : System.Web.UI.UserControl

     {

         public int FatherTopic

         {

             get

             {

                 return (int)ViewState["Topic"];

             }

             set

             {

                 ViewState["Topic"] = value;

             }

         }

         public string FatherName

         {

             get

             {

                 return ViewState["Name"].ToString();

             }

             set

             {

                 ViewState["Name"] = value;

             }

         }

         public string Position

         {

             get

             {

                 return ViewState["position"].ToString();

             }

             set

             {

                 ViewState["position"] = value;

             }

         }

         protected void Page_Load(object sender, EventArgs e)

         {

             if (!IsPostBack)

             {

                 BLL.BLL_Topic bllTopic = new BLL.BLL_Topic();

                 DataTable dt = bllTopic.GetChild(FatherTopic);

                 repZhishu.DataSource = dt;

                 DataBind();

             }

         }

     }

 }

 // .cs文件源码

  wzjr.control.Topic topicControl = (wzjr.control.Topic)LoadControl("control/Topic.ascx");

   // 父栏目ID

   topicControl.FatherTopic = Topic;

   // 父栏目名称

   topicControl.FatherName = Name;

   // 当前位置

    topicControl.Position = position;

   phControl.Controls.Add(topicControl);