Web Forms :: Required Validator That Check A Textbox Clientside?
Mar 1, 2011
I have a required validator that I check a textbox clientside, but then on post I check the database for values that have been used. I want to show the error in the RequiredFieldValidator when it post back. How do I do this?
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Similar Messages:
Dec 28, 2010
I know the built-in ASP.Net validators come with a client-side framework, however I've been unable to find anything that lets me check a single validator for it's Valid state.
The validator in question is a RegularExpressionValidator, which I use to determine whether an e-mail address is valid or not.
Here's some brief code:
[code]....
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Mar 28, 2011
trying to set up a form where the user has to either fill out a textbox or check the check box provided. is the a way around the Required field validator as as far as i know it can only work with one item to validate. Not been doing asp for long so not sure on what other options there are.
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Jul 6, 2010
I have a form that contains several textboxes and each one paired with a required validator. Each box reads a value from a dataset, and on submit click, update the database with the new value. For some reason, one of the validator always returns the error message even if I enter a value in the textbox. My code is something like this.
[Code]....
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Oct 12, 2010
I have three textboxes on an asp.net webform, how/can I use a required field validator to ensure that at least one of them contains text?
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Mar 31, 2011
I want to disable the requiredfield validator control for the textbox based on some condition of a variable
if(var==null)
{
//Activate it
}
else
{
//disable it
}
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Jan 19, 2010
i need to check , client side, if both email and phone number are empty .The textboxes are template columns of a detailview. I've added a custom validator for each textbox (one inside edit template, one inside insert template, etc . . ) each custom validator call the same javascript function . So the problem is : the custom valiator is activated only when at least a charachter is put into a textbox and i want to check if both textbox are empty .
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Mar 26, 2013
in my module there are data of students for H.S.C., C.E.T, AND H.S.C+C.E.T. so when i run the gridview page all the data of all streams together is displayed so i sort the data using a dropdownlist...means if 1 select the H.S.C in dropdownlist only the H.S.C students are being displayed.so the problem is when i sort the data by selecting a stream in dropdownlist at that time the error message of required field validator is displayed...
1) I wil select the stream from Dropdownlist and click the "sort button"
2) After the data is been sorted and i will enter the values in the TextBox and if i'll miss any of the textbox blank and i click on the "submit button" after dat the error should be displayed
as "Required".
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May 22, 2012
<asp:TextBox ID="txtDraftsmanName" runat="server" Width="200px" CssClass="inputtext" >
</asp:TextBox>*<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ControlToValidate="txtDraftsmanName" ErrorMessage= "Please enter Draftsman Name!! " Font-Bold="True" Font-Size="8pt" ForeColor="DarkRed" ValidationGroup="saveDraftsman"></asp:RequiredFieldValidator>
<asp:Button ID="btnSaveDraftsman" runat="server" Text="Save" onclick="btnSaveDraftsman_Click" ValidationGroup="saveDraftsman"/>
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Mar 25, 2013
in my website there is a module in which i m fetching the data of present students in the gridview and i m entering there marks in the gridview textbox column (created by using item template)...I want to add required field validation to the textbox columns so that after clicking the submit button there should be an error message displayed if any of the textbox is empty...
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Mar 1, 2010
When it comes to field validation, when I use a Compare Validator to make sure a date is a date or a numeric field has a number, I must also use a Required Field Validator to make sure there is something actually enetered. In other words, the Compare Validator allows a blank value even though a blank is not a date or number or whatever.
Is using both a Required Field Validator and a Compare Validator the way to do this or is there some way to make the Compare Validator also require input of some kind?
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Mar 22, 2011
I am using a custom validator to call a javascript function for validation. My problem is that I need to be able to change the error message dynamically. Here is the code:
<asp:CustomValidator ID="CustomValidator1" runat="server" ClientValidationFunction="fcnValid1"
ErrorMessage="" Display="None" ValidateEmptyText="True">
</asp:CustomValidator>
[code]....
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Apr 3, 2011
note that the scenario is ASP.NET Webforms + Master - Content page which mess up the ids.
I have, say, three checkboxes
<asp:CheckBox ID="chkConsultantQuality" runat="server"
CssClass="company"/>
<asp:CheckBox ID="chkConsultantEnvironment" runat="server"
CssClass="company"/>
<asp:CheckBox ID="chkConsultantSafety" runat="server"
CssClass="company"/>
I would like to make a div id="CompanyPanel" on click event of each checkbox according to the following condition
visible if any of the checkboxes are checked.
hidden if all of the checkboxes are unchecked.
I am planning to use jQuery since I am selecting by class name. I could do it with jQuery.each on the class='company' by checking each for a checked flag.
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Jul 28, 2010
Page validation using Required field validator is not firing I configured everything and tested in other page and found its working fine.
I placed my controls under TabContainer is that the reason for not firing.
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Mar 9, 2010
[Code]....
I have a form that contains times and dates. Each of these controls has a required field validator so that the user must put in the date and time. This apprears to work fine in testing. The data is stored in sql tables which are then worked with in the office using an Access Database. The webforms are simply used for gathering the data. In analyzing the data, they are finding that there are instances when no time has been stored. I don't know how the insert information could be saved if the control was blank. To make matters worse, the staff swear that they are entering the times.
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Oct 14, 2010
Sometimes while registering on the website people don't provide correct details like name and e-mailIn order to check correct e-mail it is better to use e-mail activation link send to their e-mail.But how to make sure the user is providing correct name ?I am really impressed by the Facebook name recognition system, it we try to use any word which is not a name, it asks you to enter a valid name.Is there any way we can make use of asp.net requiredfieldvalidator to check if user is providing a correct name or not ?I know we can make use of requiredfieldvalidator to see how many alphabets / special symbols etc butIf we put minimum alphabet requirement - in that case user can enter "....." and can easily bypass the requiredfieldvalidator or a user can easily write "iamfakeuser" instead of name and bypass the requiredfieldvalidator.
question is how to check if name is correct or not just like facebook registration form ?
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Mar 25, 2011
I'm trying to use a field validator to make sure one of my list boxes has a selection before the user is able to proceed to the next page. i'm having is that if the validation message is triggered, all of the buttons on my page loose functionality.Meaning, if I purposely trigger the validation control, I can't get rid of the error message and none of my buttons do anything when clicke after this.
The majority of the HTML:
[Code]....
Is there something that I need to add to the code behind of the page or the Java Script that I'm using?
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Jul 30, 2010
Interested in a way to call an event when the Required Field Validator component determines the assigned text field is not valid/empty. Is this possible? Somewhat surprised it doesn't have an event for this. Am I missing something?
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Jan 7, 2011
How to write custom required filed validator (or) JavaScript for the following Issue
For example
I've a Radiobuttonlist & Textbox
- One
- Two
- three
- four
- None of the above
If I select One/Two/Three/Four from Radiobuttonlist I must enter some comments in the Textbox else If I select "None of the above" No need to enter comments in the Textbox How?
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Jan 11, 2010
I need to add a Required Field Validator to a text box on my page. When I add the validator the following happens when I run the page:
When I click the submit button the page doesn't submit because the page is invalid. No error message displays despite my having set the ErronMessage. When I click inside the text box that has the Validation, then the Required error message shows. When that textbox loses focus the error message goes away. The only way I can get the page to function correctly is if I create 2 Validators for the same text box. The first validator is set to have an ErrorMessage of "" and the second one is a regular error message.
I have used these before many upon many times and never experienced this. Below you will find the Source code.
[Code]....
This code is the only way I am able to get the validation to function correctly where the ErrorMessage displays when I leave the field blank. I appreciate any help on resolving this issue. I have deleted/re-added the validation control many times. This is the only page this type of error happens on.
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Jun 14, 2010
create a required password validator that requires: numbers, char, minimun 6 char
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Feb 12, 2010
I have a web forms where i have 10 required field validators for 10 textboxes. Validation group for these required field validator needs to be determined when the page loads. I tried to change the validator in the .cs file but failed.
rfvBT.ValidationGroup = "registration";
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Jul 3, 2012
i want use this control for dropdownlist i wrote below code
<asp:DropDownList ID="DDL2" runat="server" CssClass="DPCDDL">
</asp:DropDownList>
<asp:RequiredFieldValidator Display = "Dynamic" ID="RequiredFieldValidator4" runat="server"
ErrorMessage="please select your classification." ControlToValidate="DDL1" CssClass="valid1"></asp:RequiredFieldValidator>
but it didn't work how i can define that users should select one item from DDL?
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Oct 13, 2010
My dropdownlist having data from database added with the following item:
DropDownList.Items.Insert(0, new ListItem("Please select", "0"));
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May 10, 2010
i am working on web-form for which I have set the validation summary showmessagebox = "true".
I have two required field validators, which trigger on a checkbox's OnCheckedChanged event....now my problem is, when I hit submit, the page does not submit if I do not enter any values in the text boxes..which is correct behavior but it does not point out to the error or does not display the message box.
i have to scroll up to see what is wrong with he page and then try to enter the values...I do not understand why my message box does not show up or at least why my setfocusonerror which is set to true does
not show me the text boxes...
find my code below...
[Code]....
[Code]....
[Code]....
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