Web Forms :: Validator Disabled On Client Still Validates On Server?
Jan 21, 2011
Here's one of the validators:
<asp:RequiredFieldValidator runat="server" ID="rfvCardNumber" ControlToValidate="txtCardNumber" Display="Dynamic" ErrorMessage="Credit card account number is required">*</asp:RequiredFieldValidator>
Here is the JavaScript/JQuery that I am using to disable this control:
ValidatorEnable($("#<%=rfvCardNumber.ClientID %>")[0],false);
This code does indeed disable the client side validation, but unfortunately it does not disable server side validation. I have a way to check to see if I need to validate them or not on the server but it's a bit complex and requires duplicating some code that is used later on to calculate the total due. I use that check and disable the validators in Page_Load and sure enough the validation does not occur. to get these validators disabled on the client & server from the client side?
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Mar 28, 2011
I have a user control with a label and a field. I add the user control dynamically to a page at run time. There could be many user controls which are built dynamically from data I get from the data base. The data describes the label name and if the text box should be completed.. ie is it required. I have a submit on the main page which has a validation group.All the validators on the user controls have the same validation group. So far so good I hope.
The user control has a RequiredFieldValidator for the text box and looks all like this. The validator is enabled by default.
<asp:TextBox ID="dfControl" runat="server" Text="" ToolTip="ucsAlphanumericEntryDC" Width="95%" CausesValidation="true"/>
<asp:RequiredFieldValidator ID="rfvContol" runat="server" ErrorMessage="Value is required" EnableClientScript="true"
ValidationGroup="ValidateContols" ControlToValidate="dfControl" Display="Dynamic" Enabled="true"></asp:RequiredFieldValidator>
When I dynamically load the control I check a parameter to tell me if the field is required or not. The paramater is from the database which represents the control that I am about to draw. If the Field NOT a required field I disable the validation in the page_preRender.. also tried it in load.
if (!DisplayRequired)
{
rfvContol.EnableClientScript = false;
rfvContol.Enabled = false;
dfControl.CausesValidation = false;
}
So far so good. This all works on the client side validation for only the user controls with the Display Required set to true, leaving the Validator enabled.however on posting page from a submit button which I have wired to the same validation group as the user controls, I check the IsValid on the submit and if its false I dont save anything. But when the page re-renders on the client.. I have error messages on all the user controls, saying that they are required... even though I disabled some of them that where not required. the View state is default on the control which I assume to be on.
I also tried not redrawing the controls with the validators, by enclosing the code in a if(!IsPostBack)
why the validators fire when they are disabled on the first page load but dont get disabled on the postback.
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Apr 20, 2010
I have a custom validator which validates three text boxes. my code is,
[Code]....
I fill in all the three textboxes.it still gives me the error message to fill in all the boxes and does not submit the page even when all the three boxes are filled.
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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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Feb 24, 2010
I have a couple of textboxes (actually a set of pairs of textboxes) where users can either enter a value or a percentage of a value but cannot use both. So in any given time some of these textboxes are disabled depending on which option the user chose.
For the textboxes representing percentages, there is a range validator to make sure only values from 0 to 100 are entered. If user selectes to enter datanot in percentage form, the percentage textbox gets filled automatically based on the value user enters. So if the total is something like 8 and user enters 2, the corresponding percentage textbox gets filled with 25% (minus the % sign).
However, the vaidation fails as if there is nothing there, persumably because the textbox is disabled. How do I get around this?
[code]...
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Oct 21, 2010
If a control is disabled (enabled = false), will the validator controls associated with it automatically know not to carry out validation?i have a checkbox and a textbox, if the checkbox is checked, the textbox is enabled, and has to have a value, where i used a required field validator.but if the checkbox is not checked, textbox is then disabled, however, the validator controls still seem to be trying to validate the disabled textbox.so is there a way to disable validator according to textbox's state? such as textbox.enable = true? seems like causevalidation method requires multiple button, owever i only need one...
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May 17, 2010
I was trying to check how far validator works, if we disable javascript in client browser.
I've disabled scripting in my browser. Below is my aspx page
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" Display="Dynamic"[code]....
Surprisingly on the clicking button5, the page is getting posted bak, even if TextBox1 doesn't have value. I even found out , if we make the code change as this
protected void Button5_Click(object sender, EventArgs e)
{
if(this.Page.IsValid == true)
Response.Write(TextBox1.Text.ToString()+"Added Text<BR>");
}
Its not posting back..
if the server validators depends this much on client script, what's use of using a server script instead of using client script.
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Dec 13, 2010
I have a validator on a textbox that validates against a list to ensure that the user doesn't input the same name. When testing it, if I type in the same name including the same case structure, it returns an error. If I change one letter to a different case, it doesn't return an error but rather my SQL server returns a duplicate error. How do I change the server-side validator so that it picks up duplicate names regardless of case?
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Jan 13, 2010
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.
[Code]....
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Jul 21, 2010
I had the same problem, and I trying to access a simple page with only one TextBox, one RequiredFieldValidator and one button.
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Jul 23, 2011
What should i do if the javascript was disabled on the client browser ?
Should I call the server side ? and how could i do such a thing if it is possible ?
I have a web page, and I am using JQuery ajax, and I'm calling the server side using the webMethod attribute, so what should i do if the client browser disable Javascript ....
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Oct 21, 2010
I am using compare validatore for comparing two date ie. from and To date
i am using it rightly even i tested on vs 2010 it working fine ,
bt i upload the project or my website on client side or host in iis server
i get the error msg
compare validatore not working on client side
even i use the culture gb-usa
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Jun 17, 2010
Using MicrosoftMvcValidation.js, it seems like disabled html elements are validated on the client-side. I am not sure how much sense that makes given that such elements will not be submitted by the form and I probably consider it a bug. (By the way, MicrosoftMvcJQueryValidation.js does not validate disabled elements.)
Is there any way I can disable (pun intended) the validation of disabled elements? E.g., assuming I have a reference to an html element in javascript, is there some way I can "remove" it or disable it from the client-side validation machinery?
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Dec 1, 2010
I have some problem with the custom validtor, I do validate at both client side & server side, and i have noticed that the client side code has been executed when I clicked Submit..
More details:
The page contains some Text boxes & one submit button, and all is client-server validated, the problem that when the end user selects the file path through browse control, the code will auto-fill in the file name textbox, and it gives the option to edit; The code which is doing this in the custom validtor client handler, here is the problem it is on_submit click handler, the script function has been called again....!
I have no idea if this is the correct behavior, But I don't want the script code to be executed when any server events fired... !
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Mar 19, 2010
I've been working on a task to add a validator to compare the values of two text fields in a ASP.NET 1.1 application.
It uses validators already, so the best approached seemed to involve a CustomValidator. I was inspired by the following example:
[URL]
I got the server side validation working - now I'm trying to add some client-side validation but I'm having a strange issue.
When I click in either of the two text fields, the value of the txtFinalGrade field is overridden to either "true" or "false". I've been having a tough time tracking down the code that's causing this. I tried using the IE Developer Toolbar to trace the script - as well as FireBug in Firefox (though this is an IE-only app) and I'm still trying to figure out what's causing this to happen.
Since I think this is a JavaScript issue, I'm posting that part of my code:
[Code]....
Anyone have ideas of things to try? Anyone have similar issues with textboxes being set to true/false when working with custom validators?
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May 24, 2012
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Jun 18, 2010
I can validate textbox field by RegularExpressionValidator with regex "^([0-9]{3,3})$". For the required field validation I put requiredfieldvalidator. Thus, I have two validation controls.
Can I combine them into a sigle RegularExpressionValidator? Then what does regex look like? How can I validate empty fields with RegularExpressionValidator?
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Oct 16, 2010
I'm trying to write a regular expression that allows positive & negative floating point numbers, but doesn't allow empty strings and characters.I have managed to create this
[Code]....
but it allows empty strings and I can't figure out how to add [+-].
My program is a web app which asks the user to input a temperature.
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Feb 9, 2011
I've got a free text form for people to submit feedback/support requests. ccasionally people will past in a support ticket or error log that contains something that triggers the .NET page validator as an XSS attempt. This takes the user to the error page as if the site choked on their input.Preferably, I'd rather have the page do some client-side validation when they press the save button before it's actually submitted.Is there a regex or some method I can hook into that would do the same basic check on the client side, or will I just have to write a regex that disallows certain characters all together like < and >?
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Jul 30, 2010
I am trying to make ONE thing work. The form currently have TWO Textboxes and ONE CustomValidator(connected to the first textbox). I simply want once I enter less than 4 characters in the first Textbox and tab out to the second Textbox and if Javascript is DISABLED then the server side code should stop me. I can achieve what I am trying to do if I use a button but I need to do it in the fashion I am trying decribing because if I have for example 20 textboxes on the form I want the user to see after each data entry that his validation was successful or not. Here is a sample of my code.
[code]....
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Jun 6, 2010
Something is wrong in ASP.NET MVC 2 on client side validation. If I have form for create records in database and all fields are required, validation is triggered only then when I write something in field and delete it. If I go to field, stay this field empty and press Tab key validation isn't triggered.
Here somebody else write about the same problem: [URL]
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Aug 10, 2010
I am in the process of developing a feature rich website with vast use of jQuery. My biggest concern is that I will not be able to reach a percentage of my users because they will not have Java Script enabled or will be using a platform that is not compatible with jquery. I know that I can use a simple java redirect from within the html page itself but this does not seem like a decent resolution to the problem as I would rather the script be run on the server side not from within the html page itself.
Is it possible to configure IIS, Apache, or Linux to run a script that redirects specific browsers, platforms, and settings to another html page before the html request is made? It does not seem sensible for the default index.html page to download initially before a second request is made back to the server for the index1.html page.
I need to redirect certain platforms (IE 6 for example), and browsers with java disabled to a separate website that does not have jQuery functionality.
Here is the site: http://www.intechspecial.com
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Jun 9, 2010
Is there a WYSIWYG editor that is able to format code?
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Mar 21, 2011
I'm validating input in a asp.net page but the problem is it validates e-mails like hasangürsoy@şşıı.com
My code is:
if (Regex.IsMatch(email, @"w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*"))
{ valid }
else { invalid }
EDIT: I've written a question before especially to validate e-mail addresses including Turkish characters but now I don't want users to be able to input mails with Turkish characters because users mostly type Turkish characters by mistake and I cannot send mails to these addresses.
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Dec 31, 2010
I using RangeValidator (0-10)gularExpressionValidator for text box ,Iam using regx for validate numeric characters
But if i enter charcters it will fire both RangeValidator and regx validator eventhoug i am enterd character,
i want to fire both validators seperatly
Here is my code
[code]...
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