Asp.net Validation, Page Still Posting Back

Question

0.00/5 (No votes)

See more:

Hi guys, got a problem with the standard asp.net validators in a project.

Basically I am adding the following to my form:

XML

<asp:TextBox ID="TextBox1" runat="server" ValidationGroup="MyGroup" CausesValidation="true"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" EnableClientScript="true" runat="server" ErrorMessage="RequiredFieldValidator" ControlToValidate="TextBox1" ValidationGroup="MyGroup"></asp:RequiredFieldValidator>
<asp:Button ID="Button1" runat="server" Text="Button" ValidationGroup="MyGroup" CausesValidation="true" onclick="Button1_Click" />

Problem is although the validation error displays, the page still posts back.

It is at this point i will say that if i put this in an .aspx page in the same project it works as it should.

However when i put it in a user control which is dynamically rendered, i get this problem.

The project does use URL rewriting as well, but im not sure that this is causing it. Any ideas?

Posted 13-Dec-12 1:25am

Member 7708012

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Member 7708012 · Accepted Answer · 2012-12-13T02:57:00

As it turns out it was to do with the URL re-writing. I had Quickly implemented a custom form control off an MSDN article to combat the re-writing on the post back. What the control did was to remove the url from the action attribute, however it also removed the
on submit action.
So to solve the problem the following needs to be added to the RenderAttributes override in the custom control, should anyone else be using it.

C#

if(this.Page.Validators != null && this.Page.Validators.Count >=1)
    writer.WriteAttribute("onsubmit", "javascript:return WebForm_OnSubmit();");