ASP.NET窗体间参数传递-优快云博客

窗口间传递参数学习二(子对话框向父窗口传值)

一．新建父页面Default.aspx

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

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

</head>

<body>

<div>

姓名：<asp:TextBox ID="txtName" runat="server"></asp:TextBox>

<asp:RequiredFieldValidator ID="rfv1" runat="server" ErrorMessage="*"

ControlToValidate="txtName" ValidationGroup="v" />

年龄：<asp:TextBox ID="txtAge" runat="server"></asp:TextBox>

<asp:RequiredFieldValidator ID="rfv2" runat="server" ErrorMessage="*"

ControlToValidate="txtAge" ValidationGroup="v" />

<asp:Button ID="Button1" runat="server" Text="进入赋值页面"/><br />

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

</div>

</form>

</body>

</html>

后台代码

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

{

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

this.Button1.Attributes.Add("onclick", string.Format(@"javascript:showModalDialog('Child.aspx?formid={0}&&txtName={1}&&txtAge={2}', window,

'dialogWidth:300px; dialogHeight:200px; help:0;center:1;') ;return false;",this.Form.ClientID,this.txtName.ClientID,this.txtAge.ClientID));

//使用"return false"是为了让Button1不回传,如果要回传则不需加

//window对象传入子窗口的dialogArguments中

}

二．新建子页面Child.aspx

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

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

</head>

<body>

<div>

填写姓名：<asp:TextBox ID="txtName" runat="server"></asp:TextBox><br />

填写年龄：<asp:TextBox ID="txtAge" runat="server"></asp:TextBox>

<asp:Button ID="btnOk" runat="server" Text="确定" onclick="btnOk_Click" />

</div>

</form>

</body>

</html>

后台代码

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

{

protected void btnOk_Click(object sender, EventArgs e)

{

string formId = Request.QueryString["formid"];

string []controls = {Request.QueryString["txtName"],Request.QueryString["txtAge"]};

string []values = {this.txtName.Text,this.txtAge.Text};

JavascriptHelper.DialogArguments(this.Page, formId, controls, values, false);

}

二．App_Code中的类JavascriptHelper.cs

using System;

using System.Web.UI;

using System.Text;

public class JavascriptHelper

{

/// <summary>

/// 关闭当前*对话框*并向父窗口的控件赋值

/// </summary>

/// <param name="P">调用的页面</param>

/// <param name="formname">父窗口客户端的form名称（如：form name="aspnetForm"）</param>

/// <param name="controls">父窗口客户端的控件ID数组（如：txtName,txtAge）</param>

/// <param name="values">对应每个控件传达的值的数组</param>

/// <param name="isReload">是否需要刷新父页面</param>

public static void DialogArguments(Page P, string formname, string[] controls, string[] values, bool isReload)

{

if (controls.Length != values.Length)

throw new ArgumentException("controls的长度和values长度必须相等");

StringBuilder js = new StringBuilder();

js.Append("<script language='javascript' type='text/javascript'>");

//dialogArguments属性仅对showModalDialog 和 showModelessDialog 打开的*对话框*可用

for (int i = 0; i < controls.Length; i++)

{

if (string.IsNullOrEmpty(formname))//window对象是当前窗口对象

js.AppendFormat("window.dialogArguments.{0}.value='{1}';", controls[i], values[i]);

else

js.AppendFormat("window.dialogArguments.{0}.{1}.value='{2}';", formname, controls[i], values[i]);

}

js.Append("window.close();");

if (isReload)

js.Append("window.dialogArguments.location.reload();");

js.Append("</script>");

P.ClientScript.RegisterStartupScript(P.GetType(), "onclick", js.ToString());

}

三．项目结构图(使用的是VS2008)

四．运行效果图

点击子页面确定按钮后:

五．备注

在IE下正常运行，但在火狐下有问题。