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
    }