动态加载用户控件的赋值

用户控件TestUserControl.aspx.cs

private int ID = 1 ;

    public int _ID
    {
        set
        {
            ID = value;
        }
        get
        {
            return this .ID;

        }

   }

protected void Page_Load( object sender, EventArgs e)
    {
        Response.Write(_ID); // 测试传进来的值
    }

传值页面TestUserControl.aspx

<% @ Reference Control = " ~/webUserControl.ascx " %>   <% -- 在页头加这一句代码 -- %>

TestUserControl.aspx.cs

protected void Page_Load( object sender, EventArgs e)
    {
        Control c1 = Page.LoadControl( " WebUserControl.ascx " );    
        PlaceHolder1.Controls.Add(c1);
        WebUserControl w1 = (WebUserControl)c1;
        w1._ID = 2300 ; // 这里设置用户控件的_ID的值
    }