Web Forms :: Trigger A Javascript Code After Client Validation?
Dec 25, 2010How to do trigger a javascript code after client validation?
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How To Intercept Or Trigger Client-side Validation Before Ajax Request
Feb 3, 2010I have a username textbox on a form, that has a few validation rules applied to it via the DataAnnotation attributes:
[Required(ErrorMessage = "FTP login is required")]
[StringLength(15, ErrorMessage = "Must be 15 characters or fewer")]
[RegularExpression(@"[a-zA-Z0-9]*", ErrorMessage = "Alpha-numeric characters only")]
public string FtpLogin { get; set; }
I also have a button next to this text box, that fires off a jQuery ajax request that checks for the existence of the username as follows:
<button onclick="check(this);return false;" id="FtpLoginCheck" name="FtpLoginCheck">Available?</button>
I'm looking for a way of tieing the two together, so that the client-side validation is performed before the call to the "check(this)" in the onclick event.
Edit: To be more clear, I need a way to inspect or trigger the client-side validation result of the textbox, when I click the unrelated button beside it.
Edit: I now have the button JS checking for $("form").validate().invalid, but not displaying the usual validation messages.
Web Forms :: How To Disable The Code Behind Validation When Javascript Validation Is Present
Jul 25, 2010How can I disable the code behind validation when javascript validation is present? Then if there is no javascript enabled then the code behind validation will do its thing. What I notice is that it's reading the code behind valdiation not the javascript.
View 7 RepliesWeb Forms :: Adding Client Side Validation In Code Behind?
May 21, 2010I am having issues correctly setting up reference to javascript code to a custom validator.This is my javascript code in the .aspx page.
[Code]....
And here is where I add the Client Validation to the customer validator in the code behind.
[Code]....
The validation is if there is a value present in the first text box then the second text box is required.The page throws an error when the validation should fail, but if I ignore the error the validation works correctly.Do I need to move my javascript to the code behind as well?
Web Forms :: How To Write A Code For Client Side Validation
Sep 8, 2010let me knw abt the validations in asp.net...
View 7 RepliesWeb Forms :: Add Client - Side Javascript Confirmation Dialog To Form With .net Validation Controls?
Dec 9, 2010Is there any way to add a confirmation dialog to a submit button when the form already has other validation controls and a summary control using "showmessagebox=true"? I tried adding
OnClientClick="return confirm('Are you sure?');" to the submit button, but that seems to block all of the other validation?
Javascript - Client Side Validation And Server Side Validation In Java Script And Respectively ?
Sep 6, 2010want to know that can we validate a control which is out side a form element in asp.net(server side validation)and outside a form element in html(client side validation) let's take a closer look
<html>
<body>
<input type="text" name="first name"/>
</body>
</html>
can we apply clien side validation on above text box by java script ?in asp.net
<form runat="server">
</form>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
How To Add Custom JavaScript To Client Side Causes Validation Function
Mar 29, 2011I have an asp.net web for with a few Validation controls on:
[code]....
Javascript - Disable Client Side Validation For Some Fields In MVC?
Mar 21, 2011How can I conditionally disable client-side validation of some fields ?
Here is the example of what I need to do:
user writes name and address and submits. Both are validated both server and client side. If validation passes e-mail is send to given address and (name, address) pair is stored.as a response same page is displayed (I don't want redirect!) this time with confirmation. User can retype their name and submit. In such case e-mail will be resend to the address that corresponds to given name.
It does not work because: client side validation will not pass when user clicks resent button on the second (confirmation screen). It would say that e-mail is required even if there is no field for it. How can I disable javascript validating email before the confirm page gets send to user ?
Example ASP.NET MVC page
<%if (Model.Confirm == false){ %>
<% using (Html.BeginForm()) { %>
Your email: <%: Html.EditorFor(m => m.Email) %>
Your name: <%: Html.EditorFor(m => m.Name) %>
<input type="submit" value="Send Email" />
[Code]....
Mvc3 Unobtrusive Validation Not Generating Client Code?
Mar 25, 2011For some reason fields named with '.value' or .anything does not generate client validation. For example this code:
@Html.TextArea("ContentObjectFirm.Description")
generates this:
<textarea rows="2" name="ContentObjectFirm.Description" id="ContentObjectFirm_Description" data-val-required="Firm description is required" data-val="true" cols="20">
Javascript - Fire Event After Client Side Script Validation
Nov 10, 2010Is there a way that I can execute a javascript function after the client side validation occurs in asp.net?I have a couple validation controls on a page and an input button with CausesValidation=true. The OnClientClick handler executes javascript before the validation runs, but i want to run some functions afterwards.
View 1 RepliesJavaScript - Client Side Validation Causes Wrong Data To Be Displayed
Apr 5, 2011I have a form that contains multiple and different input controls .. and I have two types of validation:
This type insures that the user input doesn't violate my application's constraints (required, max length, regExp).. and this is done on the client side using the ASP.NET Validation Controls .. and it's enforced by a server side validation.
This type works on a deeper level, like the database. it check if the entry is duplicate and any other check that can't be done on the UI level.
I use the ValidationSummary control to display the first type's errors, and a label for the second's type errors. I tried to test it with the JavaScript disabled and it worked fine, then I turned the JS back on and *Here comes the problem: *
I first try to raise an error on the db layer (by entering a name that already exists) and the error is displayed on the label and everything is good .. now I try to remove the name from the textbox and press the submit so I could raise a required field validator error the expected output is "This field is required" only but what I see is "the name already exists" and "This field is required".
I think it's because when the ASP.NET RequiredValidator works, it doesn't make a postback, so the database layer will never be validated and won't even get the label cleared!
C# - Client-Side Validation Prvent Manually Postback By JavaScript Eval ()
Mar 8, 2010I encouter some postback issue when using GetPostBackEventReference. Here is the Scenario:I have a javascript modal popup dialog and got a button in this modal dialog which used to select things (this is NOT an asp:button control)
When this javascript dialog HTML button is clicked, it will call the MS AJAX web service call by the javascript: eval() method. And this MS AJAX web service call is dynamically generated. So the code is like this:
var serviceCall = svcCall + "(" + parameters + ")"; //dynamically generate the MS AJAX web service call here
eval(serviceCall);
//use eval to trigger the MS AJAX web service call
As you may all know, after complete the MS AJAX web service, you can define a callback function to handle the completion:
function OnComplete(result, userContext, methodName) {
//force to call postback manually
eval($(userContext[0]).val()); [code]...
As you can see, this is how I bound the asp:button (i.e. btnSelectUser) 's Click Event to the asp:hiddenfield using the GetPostBackEventReference, and set the registerForEventValidation argument to false. I have also tried to use different ValidationGroup and set the CausesValidation to false.In summarize, I bound the asp:button's Click PostBackEventReference(i.e. __doPostback(....)) to the asp:hidden field's Value attribute, and using javascript eval() to eval this hidden field's value in order to manually trigger postback.
p.s. the btnSelectUser is an asp:button control and used to call out the javascript modal dialog.
Ok, here is the Problem:In the same page, there is some asp:validator, e.g. and , and of coz, when the page run into error, this validator and callout will display to the user. e.g. When the user didn't fill in anything and submit the form, the ValidatorCalloutExtender will display a ballon and tell the user. Imagine one of this ballon/validatorCalloutExtender come out and on top of your screen at the moment.
Then you click the btnSelectUser (asp:button) to show the javascript modal dialog, and in the dialog, you Add some users, and once you hit the SELECT button inside this modal dialog, a MS AJAX web service is trigger as mentioned above, and once this web service is complete, it eval() the asp:hidden field's value (i.e. __doPostback(...))......and do the postback manually.
However, because of the validatorCalloutExtender ballon has display, it somehow cannot trigger the postback in this way, but when I close the ballon/validatorCalloutExtender, the manual postback using eval() is just working fine. Even more strange is that, when the ballon is displayed, the first time I click the SELECT button inside this modal dialog it doesn't fire the postback, however, if I do the same thing again (i.e. open up the javascript dialog, and choose some users, then click the SELECT button again). It able to do the manual postback....and I don't understand why the first time doesn't work.
Javascript - Asp MVC 2 Client Side Validation For Dynamically Added Input Fields
Dec 17, 2010How do I implement client side validation for input fields that have been added to the form dynamically with javascript in an MVC 2 application?
View 2 RepliesForms Data Controls :: Javascript Validation For Assigning Validation Group To Validation Summary On Datalist Item Click?
Dec 25, 2010I am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?
View 1 RepliesClient Side Validation / When Build The Code, And Clicks On Image Button, These Validators Do Not Work?
Feb 23, 2011I have a text box in which I want only digits (either decimal or whole numbers). I have applied Required Field Validator and Regular Expression Validator on it.I have an Image Button, by clicking on which, I want this validation to be performed. But when I build the code, and clicks on Image Button, these validators do not work and I am redirected to the server side method of Image Button and after completing the execution of server side method, control comes to these validators and client side validation executes.I am fed up by finding solutions on Google and unable to find any solution.Please tell me of anyone of you know the solution that why server side code is running first and client side validation is executing after server side code execution.
View 11 RepliesWeb Forms :: Trigger Validation Via Checkbox?
May 11, 2010Is there a way to not trigger the validation until a checkbox on the form is checked? We have a form that a user does some work in, so they could be adding data throughout the day and saving it, but when it is complete and they check the completed box I want it to run the validation.
View 12 RepliesJavaScript - Writing Code To Run On Client Side?
Jul 8, 2010Is there a way (except for using JS on the html view) to tell asp.net to run a certain code on client side (instead of server side)?
View 4 RepliesAssign Validation Group To Asp.Button Dynamically On Client Side Using Javascript On The Base Of Item Selected In Drop Down List?
Jun 15, 2010n a form I have multiple group of controls which are grouped using validation group property. I want to assign validation group to asp.Button dynamically on client side using javascript on the base of item selected in drop down list.
Here is JavaScript which I am using, but it is not working. It shows validation group undefined but actually a default group is defined.
<script type="text/JavaScript">
function NextClicked() {
var _ddlStatus = document.getElementById("<%=ddl.ClientID%>");
var _selectedIndex = _ddlStatus.selectedIndex;
var _btn = document.getElementById("<%=btnNext.ClientID%>");
alert(_btn.ValidationGroup); // here in messge it shows undefiend, yet I have defiend a group in button as default.
if (_selectedIndex == 1) {
_btn.ValidationGroup = "G1";
}
if (_selectedIndex == 2) {
_btn.ValidationGroup = "G2";
}
}
Adding Javascript From Code Breaks The Validation On Page?
Nov 13, 2010What I have is button that should open another page only if textbox length is 8. Javascript must be added from code because it does not simply calls the bla.aspx, it's more like bla.aspx?id=4&code=234 etc etc...
I have this code on server side
button.Attributes.Add("onclick","javascript:window.open(bla.aspx)");
on client side i have
<asp:TextBox ID="policyNumberTxt" runat="server" MaxLength="8" CausesValidation="true"></asp:TextBox>
<asp:RegularExpressionValidator ID="policyNumberTxtRev" runat="server"
ControlToValidate="policyNumberTxt" ErrorMessage="Length must be 8."
ValidationExpression="{.{8}.}" ValidationGroup="bla" Display="Dynamic"></asp:RegularExpressionValidator>
<asp:Button ID="printBtn" CssClass="button" Text="Print" runat="server" CausesValidation="true" ValidationGroup="bla" />
What happens is that when I click the button page bla.aspx opens, and even postback is trigered. Validator is showing the message, but page is opened and postback trigered.
How to handle this? Validation is broken...
C# - Getting DataTable Values From Code Behind To Client Side Using JavaScript
Dec 9, 2010getting a particular datatable values from the server to the client using javascript.
Ex.In my class which is Countries.aspx.cs I have this somewhere on my code say on the page load.
DataTable dtbCountries = Repository.GetAllCountries;
my dtbCountries now contains this record
ID Country
1 HongKong
2 Japan
3 Korea
In my webform I want to get the values of my dtbCountries using javascript
<script type="text/javascript">
// my code here to get the dtbCountries values
</script>
What should I do? Or what's the best thing to do to expose my dtbCountries in the client.
WCF / ASMX :: Consuming Web Service In A Client Code (JavaScript)?
Mar 29, 2011Most WCF web service I have developed were consumed in a server side code (by adding a service reference in visual studio or creating a proxy class using svcutil.exe. I have never consumed a web service in a client code. So I apologize if I am using wrong terminology or my question does not make sense.We have a browser add-on or plugin that connect to a device on client computer (think of it as active-x control for internet explorer) inside a asp.net web page.This browser plugin/add-on then will be sending measurement data to the web server. After some research it appears to me that I can do eithera) Develop an AJAX enabled WCF web service and use script manager and javascript to consume it inside the web page that interact with browser pluginb) Develop a WCF web servcice (not sure about AJAX enable) that serialize request and response to JSON, and use JQuery inside asp.net page to consume it.QuestionWhat's difference between approach a) and b)? Which is better in particular scenario I have described.
View 4 RepliesWeb Forms :: Trigger The ValidationSummary Before The User Hits A Button That Causes Validation?
Nov 19, 2010Is there anyway to trigger the ValidationSummary before the user hits a button that causes validation?I have a bunch of text boxes with Required and Rregex validators attached, as I type in them and tab out they trigger their errors however the summary doesn't show anything until I hit the Submit button. Any way to have the ValidationSummary update itself in the same way as all other validators?
View 5 RepliesVisual Studio :: Unable To Put Breakpoints On Client Side JavaScript Code
Mar 20, 2010I am using VS2008, SP1. I am unable to put breakpoints in my client side javascript code. Wherever I try to put the breakpoint, I am getting the message: "This is not a valid location to put the breakpoint". I have the js intellisense working fine. I also unchecked the two "Disable Debugging" checkboxes on IE. Due to this problem, I am unable to debug the js in VS 2008.
View 3 RepliesWeb Forms :: Make Validation Controls Trigger Only Not Clicking On Submit Button And Not On Other Navigational...
Oct 17, 2010I have required validation controls on a page. If the user got to this page by mistake and wants to go to a different section of the website using the navigational buttons; required validators are triggered and it will not let the user navigate away. Ho do I get validators to trigger only when a submit button is clicked?
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