Disabled textbox is nothing on postback :o(

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M O J O - 29 Jun 2006 20:28 GMT

I need to use Request.Form.AllKeys to get values of my textboxes, but
disabled textboxes are not shown.

Here's my code...

<%

@ Page Language="VB" %>
<!

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

script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Handles Me.Load
ListBox1.Items.Clear()
If Page.IsPostBack Then
For Each s As String In Request.Form.AllKeys
ListBox1.Items.Add(New ListItem(s))
Next
End If
End Sub
</script>
<

html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtDisabled" runat="server"
Enabled="False">abcd</asp:TextBox><br />
<asp:TextBox ID="txtEnabled"
runat="server">abcd</asp:TextBox><br />
<asp:Button ID="Button1" runat="server"
Text="Button" /><br /><br />
<asp:ListBox ID="ListBox1"
runat="server"></asp:ListBox>
</div>
</form>
</body>
</html>

Click the button and watch the listbox ... the disabled control is not there.

I need to get values of disabled controls from inside a webcontrol (not user
control). I'm having problems using the FindControl method.

Any idea why the disabled controls are not showing??

Thanks!

Mojo

Reply to this Message

Jesse Houwing - 30 Jun 2006 00:29 GMT

> I need to use Request.Form.AllKeys to get values of my textboxes, but
> disabled textboxes are not shown.
[quoted text clipped - 50 lines]
>
> Any idea why the disabled controls are not showing??

It's in the protocol. If you make the field readonly instead of disabled
the value will come over to the server side. I guess it was done to
prevent unneeded data transfers, bandwidth was scarce a few years back :)

Jesse

Reply to this Message

Rick Strahl - 09 Jul 2006 00:08 GMT

Actually ReadOnly also doesn't return the value either.

I posted a BLOG entry about this some time ago and there were quite a few
useful comments there as well:

http://west-wind.com/weblog/posts/3939.aspx

+++ Rick ---

--

Rick Strahl
West Wind Technologies
http://www.west-wind.com/weblog
http://www.west-wind.com/wwThreads/

>> I need to use Request.Form.AllKeys to get values of my textboxes, but
>> disabled textboxes are not shown.
[quoted text clipped - 51 lines]
>
> Jesse

Reply to this Message

Jesse Houwing - 09 Jul 2006 00:34 GMT

* Rick Strahl wrote, On 9-7-2006 1:08:

> Actually ReadOnly also doesn't return the value either.
>
> I posted a BLOG entry about this some time ago and there were quite a
> few useful comments there as well:
>
> http://west-wind.com/weblog/posts/3939.aspx

That is a bug in .NET then, as the value is posted back from a HTML/HTTP
point of view, but thank you for pointing this out.

Jesse

Reply to this Message

Steve C. Orr [MVP, MCSD] - 30 Jun 2006 01:38 GMT

That is standard HTML behavior unfortunately. You'll likely want to cache
the value somewhere else, such as in Viewstate or in a hidden textbox.

Signature

I hope this helps,
Steve C. Orr, MCSD, MVP
http://SteveOrr.net

>I need to use Request.Form.AllKeys to get values of my textboxes, but
> disabled textboxes are not shown.
[quoted text clipped - 56 lines]
>
> Mojo

Reply to this Message

Disabled textbox is nothing on postback :o(

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