1.1 vs 2.0 Textbox Control Text on Postback

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John Walker - 28 Dec 2007 13:59 GMT

Hi,
In asp.net 1.1 I use this bit of code to get the text from a textbox in a
datagrid on postback:

txtComments = CType(dgi.FindControl("txtComments"),
System.Web.UI.WebControls.TextBox)

We recently upgraded our application to the 2.0 .net framework and this code
no longer seems to work. It is a read-only textbox... the text is
added/changed with javascipt. When we set readonly property on the textbox
to False we are then able to successfully view the added/changed text on
postback. Did something change in 2.0 so that readonly text does not
postback? is there a way to get around it?

Thanks,
John

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Mark Rae [MVP] - 28 Dec 2007 14:12 GMT

> Did something change in 2.0 so that readonly text does not postback?

Yes:
http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=
102065

> is there a way to get around it?

Yes.

Instead of this:

<asp:TextBox ID="MyTextBox" runat="server" ReadOnly="True" />

do this:

<asp:TextBox ID="MyTextBox" runat="server" />

and in your code behind do this:

protected void Page_Load(object sender, EventArgs e)
{
MyTextBox.Attributes.Add("readonly", "readonly");
}

Signature

Mark Rae
ASP.NET MVP
http://www.markrae.net

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John Walker - 28 Dec 2007 14:55 GMT

Awesome. Don't know why that works any different, but if it works then great.
Thanks!

> > Did something change in 2.0 so that readonly text does not postback?
>
[quoted text clipped - 19 lines]
> MyTextBox.Attributes.Add("readonly", "readonly");
> }

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1.1 vs 2.0 Textbox Control Text on Postback

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