如何访问ASCX ?

D_DD 2008-01-26 12:43:10

两个ASCX A.ascx和B.ascx a.ascx有一个方法 P ,在B.ascx如何去调用A.ascx的方法P?
谢谢!!

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D_DD 2008-01-26

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恩在ASPX面是可以,但我要在B.ASCX控件用调用这个P.
a_1.P()在B.ascx这样不行

LikeCode 2008-01-26

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将这个方法定义为public级,就可以直接调用了.
设a.ascx在页面上的的ID为a_1
那么调用就象a_1.P()

chuxue1342 2008-01-26

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飘过!!

LikeCode 2008-01-26

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反射吧.
在引用页面调用用户控件的方法,在用户控件调用引用页面的方法,就用户控件调用了另一个用户控件的方法了.
以下为DEMO代码
WC1.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WC1.ascx.cs" Inherits="WC1" %>

the label1(red):<asp:Label ID="Label1" runat="server" ForeColor="Red"></asp:Label>

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 WC1 : System.Web.UI.UserControl

{

    protected void Page_Load(object sender, EventArgs e)

    {



    }





    public void SetLable(string val)

    {

        Label1.Text = val;

    }

}

WC2.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WC2.ascx.cs" Inherits="WC2" %>

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="invoke the function of WC1" />

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;

using System.Reflection;



public partial class WC2 : System.Web.UI.UserControl

{

    

    protected void Page_Load(object sender, EventArgs e)

    {



    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        System.Web.UI.Page page = this.Page;

        Type pageType = page.GetType();

        MethodInfo methodInfo = pageType.GetMethod("SetWcLabel");

        object[] paras = new object[] { "from WC2" };

        methodInfo.Invoke(page, paras);

    }

}

引用页面
default.aspx

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



<%@ Register Src="WC1.ascx" TagName="WC1" TagPrefix="uc1" %>

<%@ Register Src="WC2.ascx" TagName="WC2" TagPrefix="uc2" %>



<!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>

        <uc1:WC1 id="WC1_1" runat="server">

        </uc1:WC1><br />

        <uc2:WC2 ID="WC2_1" runat="server" />

         </div>

    </form>

</body>

</html>

using System;

using System.Data;

using System.Configuration;

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 _Default : System.Web.UI.Page 

{

    protected void Page_Load(object sender, EventArgs e)

    {



    }



    public void SetWcLabel(string val)

    {

        WC1_1.SetLable(val);

    }

}