Web Forms :: Validation Controls: Required Field Validator

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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Web Forms :: Required Field Validator & Validation Group?

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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Web Forms :: Validation Summary Message Box Does Not Pop-up For A Required Field Validator

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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Dropdownlist Validation In Using Required Field Validator?

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I have Dropdownlist whose value field and text field are bind at runtime. it has --select-- as first item with a value of '0' and the rest of the values are bind at runtime.

I have given validaton group for both the control and the validator as "g1" and Intialvalue=0

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[Code]....

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ASP.NET: Custom Validation Not Working Even When Required Field Validator Is Used?

Jan 15, 2010

Here is a code for my web form control

<asp:TextBox runat="server" ID="txtUsername"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="txtUsername" runat="server" ErrorMessage="RequiredFieldValidator"></asp:RequiredFieldValidator>
<asp:CustomValidator OnServerValidate="checkUsername" ID="CustomValidator1" runat="server" ControlToValidate="txtUsername" EnableClientScript="true" ClientValidationFunction="checkUsername" ErrorMessage="CustomValidator"></asp:CustomValidator>

Client side validation
<script type="text/javascript">
function checkUsername(source,args){
alert("test");
/* alert(args.Value);

[Code]....

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Validation Summary Message Box Doesn't Pop Up For Required Field Validator?

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.....

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Web Forms :: Is Using Both A Required Field Validator And A Compare Validator

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.

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Input Validation - How To Turn Off .NET Required Field Validator "lost Focus" Behaviour

Jun 23, 2010

I have some code where I need two separate required field validators for one control, both in separate validation groups which are then validated by two separate buttons.This approach works well when the buttons are clicked but both validators show if I enter a value in the textbox and then remove it.

Is there a way to turn this"lost focus" validation off? I only need it to validate when the buttons are clicked.

EDIT,Unfortunately, if I set EnableClientScript=false then I dont have any client notifications. What I want is for the dynamic error message to show (effectivly in the OnClientClick event of the button) but not the "lost focus" of the textbox.Is there some way I can disable or "unhook" the lostfocus client event?

EDIT,A combination dDejan's answer and womp's answeer here sorted the problem perfectly.

My final code looks like this (for anyone else with a similar situation)...

Javascript...

<script type="text/javascript">

$(document).ready(function() { [code]....

So, now there is no validation until a user clicks either the "Get Email Confirmation Code" button or the "Register" button. If they click the "Get Email Confirmation Code" button all of the controls validate apart from the textbox where the user is to input the email validation code and we only see one validator message.

If they click the "Register" Button then all of the controls validate and we only see one validation message.If either button is pressed, the user goes back, adds and then removes some text then we only see one validator. Before this change you used to see both messages saying the same thing.

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Forms Data Controls :: Gridview And Required Field Validator?

Dec 8, 2010

I have a gridview on my aspx page having templatefields. In one of my templatefield i have a textbox with requiredfieldvalidator for validating input in textbox. I have another templatefield having checkbox in it. Now i want whenever user check the checkbox and then click on insert button, then first of all requiredfieldvalidor validates the textbox input for that particular row and then perform the insert operation. I m trying like this-My aspx code-

[Code]....

My C# Code-

[Code]....

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Forms Data Controls :: Using A Required Field Validator Inside A Repeater?

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I have a repeater control and inseid it's ItemTemplate and AlternateItemTemplate, I have the following code (toy code):

[Code]....

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Web Forms :: Required Field Validator Not Catching Empty Field?

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I have a aspx page with a ascx control inside an ascx control and the required field validator is not hit on the action of the page.

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I am using TinyMCE Editor for textarea in my webpage.

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Data Controls :: How To Add Required Field Validator To TextBox Inside GridView

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...

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as "Required".

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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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Web Forms :: Required Field Validator Inconsistent?

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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i am using the required field validation and Reqularexpressioncontrol in gridview. Fields are in the gridview are in template, but only the edit button it is not templeted, this edit buton is of type Imagebutton and same goes with canel and update.

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<asp:TextBox ID="txtDraftsmanName" runat="server" Width="200px" CssClass="inputtext" >
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Web Forms :: Required Field Validator - Capture Not Valid

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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Web Forms :: To Add A Required Field Validator To A Text Box On Page?

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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Web Forms :: How To Validate DropDownList Using Required Field Validator

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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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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Jun 12, 2010

i have two button in form i want to bind required field validator to only one button, bcaz it invoke in both button.

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Web Forms :: Gridview Update Not Firing With Required Field Validator?

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I have a gridview that contains a textbox, a drop down, and a checkbox. The commandfield of the gridview has ShowEditButton="true". All of the gridview updating takes place in the "_OnRowUpdating" event. I have a Panel above the gridview with a table and some fields. Everything in the gridview works perfectly, the edit, the update etc., however, when I add a requiredfieldvalidator to the panel above the gridview, the gridview update functionality no longer works. e.g., clicking the update button does not appear to fire. If I comment out the requiredfieldvalidator, everything works fine.

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Web Forms :: Required Field Validator Firing In Wrong Order?

Feb 1, 2010

I have a web page which contains 3 drop down boxes followed by 3 textboxes. I am implementing Required field validators for all of them . But when i hit submit , The Page first checks for empty Textboxes before checking for any value in Drop down boxes , but i want the Drop down boxes to be validated first before Textboxes. How Can it be achieved?

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