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ASP.Net 跨頁面?zhèn)髦?通過Previous.FindControl方法(兩種方式)

發(fā)布時(shí)間:2020-06-14 21:37:24 來源:網(wǎng)絡(luò) 閱讀:217 作者:行航杭航 欄目:編程語言

實(shí)例:

A.aspx

<%@PageLanguage="C#"AutoEventWireup="true"CodeFile="a.aspx.cs"Inherits="a"%>

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


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

<headrunat="server">

<title></title>

</head>

<body>

<formid="form1"runat="server">

<div>

<asp:TextBoxID="TextBox1"runat="server"></asp:TextBox>

<asp:ButtonID="Button1"runat="server"onclick="Button1_Click"Text="Button"PostBackUrl="~/Practice/test.aspx"/>


</div>

</form>

</body>

</html>


A.aspx.cs

using System;

using System.Collections.Generic;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;


publicpartialclassPractice_PagePractice_Page類的FindControl跨頁面?zhèn)髦?: System.Web.UI.Page

{

protectedvoid Page_Load(object sender, EventArgs e)

{

}

publicStringstr

{

get { return TextBox1.Text; }

}

protectedvoid Button1_Click(object sender, EventArgs e)

{


}

}


B.aspx

<%@PageLanguage="C#"AutoEventWireup="true"CodeFile="b.aspx.cs"Inherits="b"%>

<%@PreviousPageTypeVirtualPath="~/b.aspx"%>

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


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

<headrunat="server">

<title></title>

</head>

<body>

<formid="form1"runat="server">

<div></div>

</form>

</body>

</html>



B.aspx.cs

using System;

using System.Collections.Generic;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;


publicpartialclassPractice_test : System.Web.UI.Page

{

protectedvoid Page_Load(object sender, EventArgs e)

{

//方法一:

//TextBox tb = (TextBox)Page.PreviousPage.FindControl("textbox1");

//if (Page.PreviousPage != null)

//{

// Response.Write(tb.Text.ToString());

//}

//方法二:

if (Page.PreviousPage != null)

{

Response.Write(PreviousPage.tb_str);

}

}

}


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