Databases
StackOverflow2013
Postsdbo
POAsp.net CustomValidator client validation not firing when response comes from jQuery AJAX
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAsp.net CustomValidator client validation not firing when response comes from jQuery AJAX
    primarykey
    data
    text
    <p>I'm trying to validate an email textbox on blur using jQuery AJAX with an ASP.net webforms CustomValidator.</p> <pre><code>&lt;asp:TextBox ID="Email" runat="server" ClientIDMode="Static"&gt; &lt;asp:CustomValidator ID="EmailRegisteredValidatation" ControlToValidate="Email" runat="server" ValidationGroup="RegisterUserValidationGroup" ClientValidationFunction="CheckEmailRegistration" ErrorMessage="Email Already Registered"&gt;&lt;/asp:CustomValidator&gt; function CheckEmailRegistration(sender, args) { $.post("/api/CheckEmailRegistration/", { Email: $("#Email").val() }) .done(function (data) { args.IsValid = data; }); } </code></pre> <p>That script isn't working. It doesn't change the validation status. I know for sure the returned data is either true or false. But I'm guessing the delay of the AJAX result is causing a problem.</p> <p>This works ok:</p> <pre><code> function CheckEmailRegistration(sender, args) args.IsValid = false; } </code></pre> <p>This also doesn't work:</p> <pre><code>function CheckEmailRegistration(sender, args) { $.post("/api/CheckEmailRegistration/", { Email: $("#Email").val() }) .done(function (data) { args.IsValid = false; //even hardcoded doesn't work }); } </code></pre> <p>Outside of the scope also doesn't work:</p> <pre><code> function CheckEmailRegistration(sender, args) { var _value; $.post("/api/CheckEmailRegistration/", { Email: $("#Email").val() }) .done(function (data) { _value = data; } }); args.IsValid = _value; } </code></pre> <p>Any ideas?</p> <p>Thank you</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRichard Lucas
    1. USvts
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COHave you verified that the post is actually being made by using the network tab in chrome inspector or the network tab in internet explorer developer tools? If so are you actually getting a response? My guess is the request is not being made properly, maybe the url is not valid?
      singulars
      1. POAsp.net CustomValidator client validation not firing when response comes from jQuery AJAX
      1. USDropzilla
    2. COOh this just dawned on me too, since .done is a callback function the scope of args.IsValid may be wrong, meaning you may not have access to args.IsValid. So you may need to set a local variable at the top of the function, set data to that in the callback .done, then set args.IsValid to the local variable from the scope of the function, not withing .done.
      singulars
      1. POAsp.net CustomValidator client validation not firing when response comes from jQuery AJAX
      1. USDropzilla
    3. COthanks mike, I'm 100% sure the the post and results are correct. I have checked it with firebug. About your second comment, I had the same assumption. I tried that too and also didn't work, I'm guessing even doing it that way with arags.IsValid at the end, it gets fired before .done with whatever default value had been set. thank you
      singulars
      1. POAsp.net CustomValidator client validation not firing when response comes from jQuery AJAX
      1. USvts
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload