在一些.NET論壇中有人經(jīng)常會(huì)問(wèn)：如何在頁(yè)面中點(diǎn)擊按鈕打開(kāi)新頁(yè)面，輸入數(shù)據(jù)，然后返回到初始頁(yè)面并進(jìn)行更新？要解決這個(gè)問(wèn)題，應(yīng)該弄清楚window.showModalDialog()的用法，本人在
http://www.csdn.net/Develop/read_article.asp?id=15113已經(jīng)做過(guò)介紹。下面就用例子介紹如何在ASP.NET中實(shí)現(xiàn)這個(gè)功能。 本例子共3個(gè)頁(yè)面，其中WebForm2.aspx是過(guò)渡頁(yè)面，是為了防止提交時(shí)打開(kāi)新頁(yè)面。
WebForm1.aspx
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm1.aspx.vb"
Inherits="ShowModalDialog.WebForm1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
<meta content="Microsoft Visual Studio .NET 7.0" name="GENERATOR">
<meta content="Visual Basic 7.0" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="
http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
</HEAD>
<body MS_POSITIONING="GridLayout">
<div align="center">
<form id="Form1" method="post" runat="server">
<asp:label id="Label1" runat="server" Font-Bold="true">
從當(dāng)前頁(yè)面打開(kāi)新窗口，并把變量傳遞到新窗口的例子，可以多次打開(kāi)提交。
</asp:label><br>
<br>
<asp:textbox id="TextBox1" runat="server" Width="600px">這是初始值，將被傳遞到新窗口。</asp:textbox><br>
<br>
<asp:button id="Button1" runat="server" Text="打開(kāi)窗口" Width="96px"></asp:button></form>
</div>
</body>
</HTML>
WebForm1.aspx.vb
Public Class WebForm1
Inherits System.Web.UI.Page
Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox
Protected WithEvents Form1 As System.Web.UI.HtmlControls.HtmlForm
Protected WithEvents Label1 As System.Web.UI.WebControls.Label
Protected WithEvents Button1 As System.Web.UI.WebControls.Button
#Region " Web 窗體設(shè)計(jì)器生成的代碼 "
‘該調(diào)用是 Web 窗體設(shè)計(jì)器所必需的。
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
End Sub
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
‘CODEGEN: 此方法調(diào)用是 Web 窗體設(shè)計(jì)器所必需的
‘不要使用代碼編輯器修改它。
InitializeComponent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
‘在此處放置初始化頁(yè)的用戶代碼
If (Not IsClientScriptBlockRegistered("clientScript")) Then
Dim strScript As String = "<script>" + vbCrLf
strScript += "function OpenWin(){" + vbCrLf
strScript += "var str=window.showModalDialog(‘WebForm2.aspx‘,document.Form1.TextBox1.value)" + vbCrLf
strScript += "if(str!=null) document.Form1.TextBox1.value=str" + vbCrLf
strScript += "}" + vbCrLf
strScript += "</script>" + vbCrLf
RegisterClientScriptBlock("clientScript", strScript)
End If
Button1.Attributes.Add("onclick", "OpenWin()")
End Sub
End Class
WebForm2.aspx
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm2.aspx.vb" Inherits="aspxWeb.mengxianhui.com.WebForm2"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm2</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="
http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<frameset rows="0,*">
<frame src="about:blank">
<frame src="WebForm3.aspx">
</frameset>
</HTML>
WebForm2.aspx.vb
Public Class WebForm2
Inherits System.Web.UI.Page
#Region " Web 窗體設(shè)計(jì)器生成的代碼 "
‘該調(diào)用是 Web 窗體設(shè)計(jì)器所必需的。
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
End Sub
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
‘CODEGEN: 此方法調(diào)用是 Web 窗體設(shè)計(jì)器所必需的
‘不要使用代碼編輯器修改它。
InitializeComponent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
‘在此處放置初始化頁(yè)的用戶代碼
End Sub
End Class
WebForm3.aspx
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm3.aspx.vb"
Inherits="ShowModalDialog.WebForm3" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm3</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="
http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout" id="MyBody" runat="server">
<form id="Form1" method="post" runat="server">
<asp:Label id="Label1" runat="server">請(qǐng)輸入您的大名：</asp:Label><br>
<br>
<asp:TextBox id="TextBox1" runat="server" Width="558"></asp:TextBox><br>
<br>
<asp:Button id="Button1" runat="server" Text=" 提 交 "></asp:Button>
</form>
</body>
</HTML>
WebForm3.aspx.vb
Public Class WebForm3
Inherits System.Web.UI.Page
Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox
Protected WithEvents Label1 As System.Web.UI.WebControls.Label
Protected WithEvents Button1 As System.Web.UI.WebControls.Button
Protected MyBody As System.Web.UI.HtmlControls.HtmlControl
#Region " Web 窗體設(shè)計(jì)器生成的代碼 "
‘該調(diào)用是 Web 窗體設(shè)計(jì)器所必需的。
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
End Sub
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
‘CODEGEN: 此方法調(diào)用是 Web 窗體設(shè)計(jì)器所必需的
‘不要使用代碼編輯器修改它。
InitializeComponent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
‘在此處放置初始化頁(yè)的用戶代碼
If IsPostBack Then
Dim strScript As String = "<script>" + vbCrLf
strScript += "window.parent.returnValue=‘" + TextBox1.Text.Replace("‘", "\‘") + "‘" + vbCrLf
strScript += "window.parent.close()" + vbCrLf
strScript += "</script>" + vbCrLf
If (Not IsClientScriptBlockRegistered("clientScript")) Then
RegisterClientScriptBlock("clientScript", strScript)
End If
End If
If Not IsPostBack Then
MyBody.Attributes.Add("onload", "document.Form1.TextBox1.value=window.parent.dialogArguments")
End If
End Sub
End Class
