Compiler Error Message: BC30456:

crmpicco · July 7th, 2006, 06:25 AM

I have this small piece of code in my ASP.NEt page, I am attempting to post the information in the textbox to another page. But it doesnt seem to be working? Anyone got any ideas? I have looked it up, but I am not finding much???

Code:

<%@ Page Language="VB" %>
<script runat="server">

    ' Insert page code here
    '

</script>
<html>
<head>
</head>
<body>
    <form name="form" action="postForm2.aspx" method="post" id="postForm" runat="server">
        <asp:Textbox id="theTextbox" runat="server" />
        <asp:Button id="Submit" onClick="document.form.submit();" runat="server" />
    </form>
</body>
</html>

My error:

Compiler Error Message: BC30456: 'document' is not a member of 'ASP.postForm_aspx'.

the line:
<asp:Button id="Submit" onClick="document.form.submit();" runat="server" />

Cheers.

Picco

www.crmpicco.co.uk
www.ie7.com

crmpicco · July 7th, 2006, 06:31 AM

Ah, i found something (that i didnt think would work) - but it did

Code:

<%@ Page Language="VB" %>
<script runat="server">

    ' Insert page code here
    '
Sub SubmitForm(o As Object, e As EventArgs)
    Dim webbrowser
    webbrowser.Navigate("javascript:document.form.submit();")
End Sub
</script>
<html>
<head>
</head>
<body>
    <form name="form" action="postForm2.aspx" method="post" id="postForm" runat="server">
        <asp:Textbox id="theTextbox" runat="server" />
        <asp:Button id="Submit" onClick="SubmitForm" runat="server" Text="Submit" />
    </form>
</body>
</html>

thats thw working code, now postForm2.aspx looks like this:

Code:

<%@ Page Language="VB" Debug="True" %>
<script runat="server">

Sub Page_Load
    If Not Page.PreviousPage Is Nothing Then
        Dim SourceTextBox As TextBox
        SourceTextBox = CType(PreviousPage.FindControl("theTextbox"), _
            TextBox)
        If Not SourceTextBox Is Nothing Then
            Label1.Text = SourceTextBox.Text
        End If
    End If
End Sub

</script>
<html>
<head>
</head>
<body>
    <form runat="server">

    </form>
</body>
</html>

Should that not be able to pick up what is in theTextbox form field?

Cheers

www.crmpicco.co.uk
www.ie7.com

Imar · July 8th, 2006, 03:50 AM

ASP.NET (1.x and 2) pages by default post back to themselves. If you look at the resulting HTML in the browser, you'll see .NET has changed the form tag for you.

In ASP.NET 2 there is something called "cross page posting" that allows you to post information from one page to another. You seem to be using this, but you need to enable cross page posting on the first page as well by setting the relevant properties on the buttons that cause the submit, and not with tricks that submit the form with a webbrowser or client side script.

Quite often you don't need CPP. You just have to get used to the single page, post back mechanism.

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

crmpicco · November 30th, 2006, 07:40 AM

thanks Imar, appreciated help

www.crmpicco.co.uk
www.ie7.com