目的：加入用户自定义控件

错误提示：System.Web.HttpException:   类型“TextBox”的控件“ctl02_TextBox2”必须放在具有   runat=server   的窗体标记内。


沒有ctl02_TextBox2这个控件啊？



WebUserControl.ascx   代码


<%@   Control   Language= "C# "   AutoEventWireup= "true "   CodeFile= "WebUserControl.ascx.cs "   Inherits= "WebUserControl "   %>

<asp:TextBox   ID= "TextBox2 "   Text= "tb2 "   runat= "server "> </asp:TextBox> &nbsp;

<asp:Button   ID= "Button1 "   runat= "server "   Text= "Button "   />

<asp:TextBox   ID= "TextBox1 "   Text= "tb1 "   runat= "server "> </asp:TextBox>

<asp:Button   ID= "Button2 "   runat= "server "   Text= "Button "   />



WebUserControl.ascx.cs代码


using   System;

using   System.Data;

using   System.Configuration;

using   System.Collections;

using   System.Web;

using   System.Web.Security;

using   System.Web.UI;

using   System.Web.UI.WebControls;

using   System.Web.UI.WebControls.WebParts;

using   System.Web.UI.HtmlControls;


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

{

        protected   void   Page_Load(object   sender,   EventArgs   e)

        {

                TextBox1.Text   =   "text1 ";

                TextBox2.Text   =   "text2 ";

        }

}



.aspx代码：


<%@   Page   Language= "C# "   AutoEventWireup= "true "   CodeFile= "User_Control.aspx.cs "   Inherits= "User_Control "   %>

<%@   Reference   Control= "~/WebUserControl.ascx "%>

<!DOCTYPE   html   PUBLIC   "-//W3C//DTD   XHTML   1.0   Transitional//EN "   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">


<html   xmlns= "http://www.w3.org/1999/xhtml "   >

<head   runat= "server ">

        <title> 无标题页 </title>

</head>

<body>

        <form   id= "form1 "   runat= "server ">

        <div>

                &nbsp; </div>

        </form>

</body>

</html>


.aspx.cs代码


using   System;

using   System.Data;

using   System.Configuration;

using   System.Collections;

using   System.Web;

using   System.Web.Security;

using   System.Web.UI;

using   System.Web.UI.WebControls;

using   System.Web.UI.WebControls.WebParts;

using   System.Web.UI.HtmlControls;


public   partial   class   User_Control   :   System.Web.UI.Page

{

        protected   void   Page_Load(object   sender,   EventArgs   e)

        {

                UserControl   uc   =(UserControl)LoadControl( "WebUserControl.ascx ");

                Page.Controls.Add(uc);

        }

}

 

 

================================================================

方案1：

public   override   void   VerifyRenderingInServerForm(Control   control){


}

方案2：

不能用Page.Controls，你用户控件中的那些服务器控件必须在一个runat=server的form中，因此得要加到form里面

this.FindControl( "form1 ").Controls.Add(LoadControl( "WebUserControl.ascx "));