在一些.NET论坛中有人经常会问:如何在页面中点击按钮打开新页面,输入数据,然后返回到初始页面并进行更新?要解决这个问题,应该弄清楚window.showModalDialog()的用法,本人在http://www.csdn.net/Develop/read_article.asp?id=15113已经做过介绍。下面就用例子介绍如何在ASP.NET中实现这个功能。 本例子共3个页面,其中WebForm2.aspx是过渡页面,是为了防止提交时打开新页面。 WebForm1.aspx <%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm1.aspx.vb" Inherits="ShowModalDialog.WebForm1" %> WebForm1 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 窗体设计器生成的代码 " '该调用是 Web 窗体设计器所必需的。 Private Sub InitializeComponent() End Sub Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: 此方法调用是 Web 窗体设计器所必需的 '不要使用代码编辑器修改它。 InitializeComponent() End Sub#End Region Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load '在此处放置初始化页的用户代码 If (Not IsClientScriptBlockRegistered("clientScript")) Then Dim strScript As String = "" + vbCrLf RegisterClientScriptBlock("clientScript", strScript) End If Button1.Attributes.Add("onclick", "OpenWin()") End SubEnd ClassWebForm2.aspx <%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm2.aspx.vb" Inherits="aspxWeb.mengxianhui.com.WebForm2"%> WebForm2 WebForm2.aspx.vb Public Class WebForm2 Inherits System.Web.UI.Page#Region " Web 窗体设计器生成的代码 " '该调用是 Web 窗体设计器所必需的。 Private Sub InitializeComponent() End Sub Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: 此方法调用是 Web 窗体设计器所必需的 '不要使用代码编辑器修改它。 InitializeComponent() End Sub#End Region Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load '在此处放置初始化页的用户代码 End SubEnd ClassWebForm3.aspx <%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm3.aspx.vb" Inherits="ShowModalDialog.WebForm3" %> WebForm3 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 窗体设计器生成的代码 " '该调用是 Web 窗体设计器所必需的。 Private Sub InitializeComponent() End Sub Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: 此方法调用是 Web 窗体设计器所必需的 '不要使用代码编辑器修改它。 InitializeComponent() End Sub#End Region Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load '在此处放置初始化页的用户代码 If IsPostBack Then Dim strScript As String = "" + 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 SubEnd Class |