子页面赋值给父页面的控件方法

   在父页面Parent.aspx点击弹出第二个页面，将会弹出Child.aspx子页面，在子页面中输入需要传入到Parent.aspx的值点击确认，则可以把Child.aspx子页面输入的值传到Parent.aspx上的控件上。
Parent.aspx的HTML为：
<%@ Page language="c#" Codebehind="Parent.aspx.cs" AutoEventWireup="false" Inherits="TestToParent.WebForm1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
    <HEAD>
        <title>WebForm1</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
        <script language="javascript">

// ------------------弹出window.open窗口--------------------
function openwin(fileName,type,window_width,window_height,property)
{ 
    var top  = (window.screen.availHeight-window_height)/2;
    var left = (window.screen.availWidth-window_width)/2;
    var newwindow;
    if (window_width=="" && window_height=="")
    {
       if (type=="0")
       {
           newwindow=window.open(fileName,"","left="+left+",top="+top+","+property);
       }
       else
       {
           newwindow=window.open(fileName,"","left=0,top=0,"+property);
       }
    }
    else
    {
    if (type=="0")
    {
        newwindow=window.open(fileName,"","left=0,top=0,height="+window_height+",width="+window_width+","+property);
    }
    else
    {
        newwindow=window.open(fileName,"","left="+left+",top="+top+",height="+window_height+",width="+window_width+","+property);
    }
       
    }
    return newwindow;
}

function openwinsimp(fileName,window_width,window_height)
{ 

    //alert(fileName);
    var newwindow=openwin(fileName,'1',window_width,window_height,'resizable=no,scrollbars=auto,status=yes,toolbar=no,menubar=no,location=no');
    newwindow.focus();
    
    return newwindow;
}

        </script>
        <script>
        function getid()
        {

          var id = new String(window.location.href);
          //alert(id);

            if( id.indexOf("id=", 1) ==-1 )
            {
              id=-1;
             

            }
            else
            {
               
                id = parseInt( id.substr( id.indexOf("id=", 1) + 3 ) );
            }
           // alert(id);
             return id;
             
           
          }
          
          
        </script>
    </HEAD>
    <body MS_POSITIONING="GridLayout">
        <form id="Form1" method="post" runat="server">
            <a href="#" onclick="openwinsimp('./Child.aspx?id='+getid()+'&amp;type=d1&amp;ctrl1ID=txt_Child',1024,768)">
                弹出一个页面</a>
            <asp:TextBox id="txt_Child" style="Z-INDEX: 101; LEFT: 232px; POSITION: absolute; TOP: 80px"
                runat="server"></asp:TextBox>
            <asp:Label id="Label1" style="Z-INDEX: 102; LEFT: 96px; POSITION: absolute; TOP: 32px" runat="server">第一个页面</asp:Label>
            <asp:Label id="Label2" style="Z-INDEX: 103; LEFT: 40px; POSITION: absolute; TOP: 88px" runat="server">你在第二个页面输入的是：</asp:Label>
        </form>
    </body>
</HTML>

预览如下：


<%@ Page language="c#" Codebehind="Child.aspx.cs" AutoEventWireup="false" Inherits="TestToParent.WebForm2" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
    <HEAD>
        <title>WebForm2</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
    </HEAD>
    <body MS_POSITIONING="GridLayout">
        <form id="Form1" method="post" runat="server">
            <FONT face="宋体">
                <asp:Button id="Button1" style="Z-INDEX: 101; LEFT: 120px; POSITION: absolute; TOP: 128px" runat="server"
                    Text="Button"></asp:Button>
                <asp:TextBox id="TextBox1" style="Z-INDEX: 102; LEFT: 96px; POSITION: absolute; TOP: 88px" runat="server"></asp:TextBox>
                <asp:Label id="Label1" style="Z-INDEX: 103; LEFT: 0px; POSITION: absolute; TOP: 96px" runat="server">第二个页面</asp:Label></FONT>
        </form>
    </body>
</HTML>

 

.CS代码：

private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            if (Request.Params["ctrl1ID"] != null)
            {
                ViewState["ctrl1ID"] = Request.Params["ctrl1ID"].Trim();

            }
        }

        Web 窗体设计器生成的代码

        /// <summary>
        /// 生成script脚本,完成对父窗口控件的赋值
        /// </summary>
        /// <param name="value1">控件1的值</param>
        /// <param name="value2">控件2的值</param>
        /// <returns></returns>
        private string MakeScriptStr(string text)
        {

            //value= "  [" + value + "]";
            string result = "<script>";

            result += "window.opener.document.all('" + ViewState["ctrl1ID"] + "',0).value='" + text + "';";
            result += "window.close();";
            result += "</script>";

            return result;
        }
        private void Button1_Click(object sender, System.EventArgs e)
        {
            string strScript = this.MakeScriptStr(this.TextBox1.Text);
            Page.RegisterStartupScript("return1", strScript);
        
        }

第二个页面预览如下：



输入：guojiang，点击按钮。出现如下结果：


posted on 2007-05-27 09:11  过江  阅读(1551)  评论(0)  编辑  收藏  举报