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ASP.NET C# Hyperlink passing values back to parent form

Posted on 2004-09-30
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Last Modified: 2012-06-22
Hi there...

Been pulling my hair out over this and I am obviously missing something simple and need another pair of eyes... so please help... :-)

I have a simple form that looks like this:

<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="iso-8859-1" %>
<script runat="server">
protected void Page_Load(Object Src, EventArgs E)
{
      btnAddressFinder.Attributes.Add("onclick", "window.open('address-finder.aspx?  txtAddressFinder=test','popup','width=250,height=250,left=270,top=180');");

}
</script>
<html>
<title></title>
</head>
<form id="Form1" method="post" runat="server">

<table width="742">
      <tr>
            <td width="20">&nbsp;</td>            
      <td>
        <h1>Postal Address</h1>
        <table width="100%" border="0">
          <tr>
            <td width="30%"><p><strong>Title</strong></p></td>
            <td width="70%"><asp:dropdownlist AutoPostBack="false" ID="ddTitle" runat="server"></asp:dropdownlist></td>
          </tr>
          <tr>
            <td width="30%"><p><strong>First name</strong></p></td>
            <td width="70%"><asp:textbox ID="txtFirstName" runat="server" TextMode="SingleLine" /></td>
          </tr>
          <tr>
            <td width="30%"><p><strong>Surname</strong></p></td>
            <td width="70%"><asp:textbox ID="txtSurname" runat="server" TextMode="SingleLine" /></td>
          </tr>
          <tr>
            <td colspan="2">&nbsp;</td>
          </tr>
          <tr>
            <td colspan="2"><p><strong>Please enter your postcode in the textbox
                below and click &quot;Address Finder&quot; to let us complete
                your address details for you.</strong></p></td>
          </tr>
          <tr>
            <td>&nbsp;</td>
            <td>&nbsp;</td>
          </tr>
          <tr>
            <td width="30%">&nbsp;</td>
            <td width="70%">
                <asp:textbox ID="txtAddressFinder" runat="server" TextMode="SingleLine" />
                <asp:button ID="btnAddressFinder"  Text="Address Finder" runat="server"/></td>
          </tr>
        </table>
</form>
</body>
</html>

The address finder popup is working fine... and the address finder popup looks like this:

<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="iso-8859-1" %>
<script runat="server">
protected void Page_Load(Object Src, EventArgs E)
{
      
      HyperLink1.NavigateUrl = "javascript:;";
      HyperLink1.Attributes.Add("onclick", "window.opener.document.forms(0).txtAddressFinder.value='2222';self.close()");
      
}
</script>
<html>
<head>
<title>Postal Address Finder</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<form runat="server">
      <asp:hyperlink runat="server" ID="HyperLink1" ToolTip="Hyperlink">Hyperlink</asp:hyperlink>
</form>
</body>
</html>

The problem I am having is that when I click on the link nothing happens? If I remove the part of the script to post the value back to the form - and just leave the self.close() - it works fine and the popup closes?

Can anyone see what I am doing wrong here?

Thanks for the help!

g|a|m|b|r|i|n|u|s



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Question by:gambrinus
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4 Comments
 
LVL 1

Accepted Solution

by:
muellerfan earned 50 total points
ID: 12191463
First, I would change this line: window.opener.document.forms(0).txtAddressFinder.value
to this: window.opener.document.forms[0].txtAddressFinder.value

I've always used [] and not (), but I don't know if that matters at all.

Also, you should put a name field on the textbox along with the ID ( Name="txtAddressFinder")

If that doesn't help, you can see where your error is, but doing alerts.  First alert(window) then alert(window.opener) then alert(window.opener.document) and so on.  You should be able to figure out what is causing your problem.

Good Luck!
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