.Net Validation Controls Work *before* The First Postback?
Jan 4, 2011We are investigating using ASP.Net validations for client side validating. Is it possible to get the client side validators to work before an initial postback?
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[Code]....
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[Code]....
Validation Work In Mvc?
Jul 29, 2010[Code]....
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[code]...
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CausesValidation="True"></asp:TextBox>
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Display="None"
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Enabled="false" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator" runat="server"
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Display="None"
ErrorMessage="Bitte geben Sie eine Zahl ein"
Enabled="false" />
<asp:ValidatorCalloutExtender ID="ValidatorCalloutExtender1" runat="server"
TargetControlID="RequiredValidator" />
<asp:ValidatorCalloutExtender ID="ValidatorCalloutExtender2" runat="server"
TargetControlID="RegularExpressionValidator" />
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I know I can't enable/disable the validator on page_load because something might be entered into that textbox. I also tried the following in the onclick event of the submit button but it didn't seem to work:
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writer.AddAttribute(HtmlTextWriterAttribute.Onclick, "javascript:return DoSmth();");
function DoSmth() {
var cBox = confirm("Are you sure?");
if (!cBox) {
return false;
}
else {
//Invoke validation
}
When I push button submit, I call confirm box. If I press cancel - all right. But if I press ok, I need to do validation. How can I stop postback and do valiadation?
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[Code]....
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Here is the trick :
I have two <input /> :
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[Code]....
One for an optionnal hour (example : 22:30) wich is a DateTime? :
[Code]....
Erreur and LibellesSinistre are my ressources files.
I got two problems :
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I can found t he function in a page source
<script type="text/javascript">
//<![CDATA[
var theForm = document.forms['aspnetForm'];
if (!theForm) {
theForm = document.aspnetForm;
}
function __doPostBack(eventTarget, eventArgument) {
if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
[CODE]
I can click the links or controls and it simply does nothing. It is the same like having AutoPostBack set to False.
Not a long ago it was working properly but it most likely started with one of changes I made to the application but I am not able to find what I did wrong. The problem is not browser dependent and the behaviour is the same on Win 7, XP and Win Server 2008.
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ConfirmButtonExtender1 with TargetControlID=button1
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I tried replacing the MvcContrib ModelViewPage with the default Mvc ViewPage and it still didn't work.
Here's my code:
Web.config has:
[Code]....
Site.Master page has:
[Code]....
View page inherits from MvcContrib's ModelViewPage:Here's the view page:
[Code]....
Here's the controller post action:
[Code]....
Here's the entity object with the Required field:
[Code]....
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View 3 RepliesPostback Validation Causes An Alert Dialog To Be Displayed?
Jun 4, 2010For some strange reason an alert dialog with the text title "Message From Web page" and message "-" displays when posting back a for with validation. There are no custom validation scripts that display an alert window. I am debgging javascript using IE development toolbar? Is it possible to break into the code that displays the alert box? so far I have been unable to do so.
View 2 RepliesWeb Forms :: Validation Summary Appears After Postback?
Mar 8, 2011i have many validators but one validator RFVRIDDORReferenceId is enabled and disabled through javascript. because txtReferenceId is shown when something is selected from a dropdownlist. initially it is disabled. everything was working fine until i implemented EDIT functionality in which through an ID i need to load page and show everything...on serverside i enabled
RFVRIDDORReferenceId.Enabled = true;
if ReferenceId database field had value in it. other wise it stays like that. after loading the information on page and disable RFVRIDDORReferenceId through client side...press save button and everything will be updated but when page comes back validation summary has
Following errors occured
> ReferenceId is required
it displays in red i dont know why it is doing it....(postback itself shows that all validators were true). is there any reason?
does validator validate themselve after postback? if yes then why does not remaining validators shows error message?
PS: its a required field validator and there are many other but validation summary shows only for this validator.
Disable Validation In Order To Keep Some HTML On Postback?
Oct 3, 2012I have a div where I put a lot of stuff on runtime to construct a chart. The user should be able to copy the chart to another div (innerHTML) and then make som adjustments to the original div, which causes a postback. Of cours the cloned div comes back empty.
So I'm thinking of putting the entire innerHTML in a session variable at page_unload, but then I run into the validation problem. I've tried using a hiddenfield as an in-between control, but it's the same, and it seems you can't use the CausesValidation on that control. I've also tried a regular asp:textbox, but the CausesValidation doesn't have any effect.
How to do this? Or any better way all together on the copy-chart issue?
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Jun 6, 2010well the thing i am doing is that and returning a formviewdal ,there is a page refresh while performing validation ( it work fine when i return only modal ,but is not working
when i am returning formviewmodal i.e doing a page refresh) ,What might be wrong. Review the create below as it is returning viewmodal class
My View
[Code]....
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None of my custom javascript gets called. I am registering the custom adapter in Application_Start using DataAnnotationsModelValidatorProvider.RegisterAdapter(....). In the DataAnnotationsModelValidator derived class, GetClientValidationRuls is never even called.
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Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
This is done locally and as of now, the app will never be on a cluster. I think this has to do with the validation process and .NET doesn't like that I've changed the target. Anyone know a way around this? I really need this to work how I described.