How To Add Custom JavaScript To Client Side Causes Validation Function

Mar 29, 2011

I have an asp.net web for with a few Validation controls on:

[code]....

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Javascript - Client Side Validation And Server Side Validation In Java Script And Respectively ?

Sep 6, 2010

want 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>

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MVC :: Register Client-side Validation For Custom Validation Attribute?

May 19, 2010

I am trying to create a custom password validation attribute which has these requirements

1. cannot be empty.

2. doesn't contain space or other special chracters, which I'll define later.

3. length is between 6 - 12

[Code]....

it works fine on the server-side but I'd like to make this work on the client side as well, so I created a PasswordAttributeAdapter class

[Code]....

and in global.asax I added

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I've been trying to get a custom validator component working that ensures at least one checkbox from a checkboxlist has been checked. I've been used some code I found on dotnetjunkies.com but the client-side validation didn't work. I've been attempting to modify it to get the client-side javascript validation to work with no luck. Basically, I compile the below code into a DLL and add it to my bin folder.

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Sep 14, 2010

Possible Duplicates: how to call server side function from client side - asp.net Calling ASP.NET Code Behind function from Javascript Calling ASP.NET server side method via JQuery While loading an aspx page, how is it possible to call a server side method with the client side code?Can u show one example?

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Dec 25, 2010

Custom Validation Client-Side not working

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Do I understand correctly that for your own custom atrributes, to work with client side validation, you also have to write a jQuery script that validate the value?My client side validation works fine, but not for my own attributes (In this case the "PropertiesMustMatchAttribute" I just copied out of a default asp.net mvc project (not empty one), or others that hit the database to see if an email address are unique

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Web Forms :: Validation With Custom Controls Client-Side

Jan 14, 2010

I have a custom control which I need to be able to operate with the validation controls available within asp.net. I would like the message to be shown to the user client-side so as not having to wait for a postback each time.I have the ValidationPropertyAttribute("value") set at the top of the control. However it is still being completely ignored by the validation controls. I have found the following from microsoft, but I'm not sure I'm interpreting it correctly, could someoneIn order to be referenced by a validation control, a control must have a validation property. All controls that can be validated have a ValidationPropertyAttribute, which indicates which property should be read for the purposes of validation. If you write your own control, you can make it take part in validation by providing one of these attributes to specify which property to use.

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How To Use The Client-side Validation Of A RequiredFieldValidator In Combination With Custom Usercontrol

Apr 13, 2010

Using the ValidationProperty I've managed to connect a RequiredFieldValidator with my custom control. When I enable client script in the validator, JavaScript errors occur.

Is there a way to tell the RequiredFieldValidator how it can validate my custom control in the client?

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Custom TextBox Control With Built-in Client-side Validation?

Jan 30, 2011

I have a textbox in my application which has multiple validation on it e.g. RequiredFieldValidator, RegexValidation and CustomValidation. My page has several similar textboxes. So I just copy-paste and change id and controltovalidate properties and it is working.

Since similar tbxs are going to be used on another page as well, I think it would be nice to create my own custom TextBox control with built-in validation.

Here are two approaches I have found and tried:

1: Implement from IValidator perform my custom validation in Validate Method. As shown here: Self-Validating TextBox But it does not show how to implement client-side validation.

2: Create custom control that derives from TextBox and add asp.net built-in validators I need. As shown here:Custom TextBox. I tried the code and it works server/client side.

I like the first approach but don't know how to implement client-side validation. I know I need a client-side js function. I can do that. I know how to include my js file using Page.ClientScript class but don't know how to integrate all together and make it work.

I can create a UserControl or the second approach above but for now I am specifically looking to learn and implement client-side validation from custom control.

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C# - Run Javascript Function After Server Side Validation Is Complete?

Mar 26, 2010

I've got a lightbox with a small form (2 fields) in it, inside an UpdatePanel, and I want to close this lightbox (must be done via javascript) when the 'Save' button is pressed.

However, there is a need to have a server-side CustomValidator on the page, and I only want to close the lightbox if this returns as valid.

Does anyone know a way to trigger javascript (or jQuery) code from a server-side validator?

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Javascript - Disable Client Side Validation For Some Fields In MVC?

Mar 21, 2011

How 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]....

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Javascript - Fire Event After Client Side Script Validation

Nov 10, 2010

Is 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.

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JavaScript - Client Side Validation Causes Wrong Data To Be Displayed

Apr 5, 2011

I 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!

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Forms Data Controls :: DataGrid's - Call A Server - Side Function On ItemDataBound Event Except Client - Side Function

Jan 10, 2010

I Getting A Problem In DataGrid's ItemDataBound Event. I Am Calling A JavaScript Function In DataGrid's ItemDataBound Which Retrun The CellIndex And RowIndex Number On Which UserClick After That I Am Re-Binding The DataGrid With jQuery Function After That ItemDataBound Event Not Working. I Want To Call The Same Function Again. Is Their Any Method To Call A Server-Side Function On ItemDataBound Event Except Client-Side Function..

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C# - Client-Side Validation Prvent Manually Postback By JavaScript Eval ()

Mar 8, 2010

I 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.

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Javascript - Asp MVC 2 Client Side Validation For Dynamically Added Input Fields

Dec 17, 2010

How do I implement client side validation for input fields that have been added to the form dynamically with javascript in an MVC 2 application?

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Web Forms :: Add Client - Side Javascript Confirmation Dialog To Form With .net Validation Controls?

Dec 9, 2010

Is 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?

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How To Invoke Server Side Function Before Invoking Client Side Function

Oct 7, 2010

I am using an update panel in my application. Inside the update panel i am trying to trigger a html button, which in turn should invoke a server side function after which i need to invoke a client side function.But the client side function is getting invoked first where as the server side function is not getting invoked at all.

Here is my code

<asp:UpdatePanel ID="embedcodepanel" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnembedurl" EventName="onclick"/>
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<ContentTemplate>
<label id="lbl_embedcode" class="hide">Site Embed Code:</label>
<textarea id="embedCode" class="embedCode hide"> CreateEmbedURL('<%=_redirectUrl%>')

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How To By-pass Client-side Validation To Verify Server-side Validation

Mar 1, 2011

I'm interested in identifying a means to verify the server-side validation is performing as expected, but need to bypass the client-side validation being done using ASP.NET validation controls. To test this, I've tried using the form Poster add-on to Firefox that allowed me to get/modify the page contents and post it, but the .NET framework interpreted the submission as harmful and threw an application error ("A potentially dangerous Request.Form value was detected from the client").I've created a WinForm that includes a WebBrowser control and I'm able to manipulate the contents of the web page and invoke the button click, but am interested in seeing how to allow a postback with invalid input values. I don't want to assume the server-side validation works (even though I do check if Page.IsValid on the server on postback).This submits the web form in the WebBrowseer control and the expected client-side validation fires:
extendedWebBrowser1.Document.GetElementById(formButtonName).InvokeMember("click");
This is how I've manipulated some of the page contents (this just prevents submission):
mshtml.IHTMLDocument2 doc = extendedWebBrowser1.Document.DomDocument as mshtml.IHTMLDocument2;
string html = doc.body.innerHTML;
html.Replace("Page_ValidationActive = false", "Page_ValidationActive = true");
doc.body.innerHTML = html.ToString();
extendedWebBrowser1.Document.GetElementById(formButtonName).InvokeMember("click");

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Javascript - User Control With Client + Server Side CustomValidation; Wrong Client Side Validator Is Picked

Nov 23, 2010

I have a user control which contains a CustomValidator which is used according to whether a RadioButton is checked or not (there are several RadioButtons, I'm only showing the relevant one)

<asp:RadioButton runat="Server" ID="RadioBetween" GroupName="DateGroup" CssClass="date_group_options_control_radio" />
[code]...

There is some client + server side validation code (the server side code does exactly the same thing and is skipped for brevity)

<script type="text/javascript">
function ValidateDateFields_Client(source, args) [code]...

There are two instances of this control in the page. When running the client side version it hits the wrong one (the version of the control which is disabled). You can see from the generated HTML both are correctly specified. I'm not sure how .NET works out which clientside function to call given they both have the same name.

<script type="text/javascript">
//<![CDATA[
var ctl00_MCPH1_QueryTextValidator = document.all ? document.all["ctl00_MCPH1_QueryTextValidator"] : document.getElementById("ctl00_MCPH1_QueryTextValidator");

[code]...
Do i need to add something in to scope it? What's the best way to achieve this? If I disable the loading of the second control everything works fine.

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Assign Validation Group To Asp.Button Dynamically On Client Side Using Javascript On The Base Of Item Selected In Drop Down List?

Jun 15, 2010

n 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";
}
}

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Web Forms :: Give A Client Side Validation All The Function Work,but In Confirm Password Its Not Hide Wen Give A Correct Password?

Jun 16, 2010

I have create a masterpage and add content page include user (firsname,lastname,password,new password,confirm new password adn etc..)detail update field. i try to give a client side validation all the function work,but in confirm password its not hide wen give a correct password.. anybody give correct solution..code are below..

[Code]....

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Web Forms :: How To Call Client Side Function In Server Side

Apr 21, 2010

How could i call a javascript function in server side. I have to call the javascript function on the click of a linkbutton which inside a repeater control.

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Jul 30, 2010

In my application I need to pass a string value from the server side(.aspx.cs) to a function in the client side (.aspx) page.

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