Web Forms :: Use Of Asp.net Required Field Validator For Checking Name?
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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Similar Messages:
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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Feb 3, 2010
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.
The issue is with the 2nd nested ascx control. The field validators in the first ascx control validate correctly, but with the ascx control inside the ascx control there are issues.
The nested ascx control is a repeater control and this may be the reason, but I am unsure.
I'm not exactly sure what question to ask, but I'll list a few below.
How do I attach the field validators up a level to the 1st ascx control?
Is it possible to put required fields into a nested ascx control?
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Aug 10, 2010
I have some controls on the asp.net page that can be required on certain senario and can be not required on others.
So we enable/disable them dinamaically depending on the current transactions.
Now I am thinking of a way where I can check the required field by Javascript on the click event of save button. Remember control not be required at all time.
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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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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 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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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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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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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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Feb 17, 2011
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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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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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]....
But it doesnot validate and due to which insert operation throws an error-Input string was not in correct formatHow can i resolve it?
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Feb 21, 2011
I have a website created in asp.net and have the following fields displayed in the grid view linked through a database.First_Name Last_name City Username Password Email Mobile Genderplease let me how I can put validations when the edit button is clicked and the textboxs popout...I have tried a lot of ways like edit template and all but they have not been helpfulReallyIf you need I can also post the code I am using..
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Feb 10, 2010
my question is very simple. I had read through many post include this: http://blog.anasghanem.com/post/How-to-get-the-readonly-textbox-value-on-the-server-.aspxI have a calender extender and the date was target to a texbox. This textbox, i had set it to readonly and it is validate by a required field validator. so mean this texbox must have a value inside. my prob is, i bind the textbox to database and if data is NULL or empty i can't save it because the required field validator was validate textbox as empty value at cllient side. If i remove the required field validator everthing fine. But this is not i want. I have try to set the textbox to javascript onCopy,onPaste,onkeyup. but user also can delete and paste into the textbox.i have think to disable the requried field validtor at server side when data is inserted.
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Nov 25, 2010
Can a required field validator be called from the code behind page?We have several check boxes and some of them require the user to enter a date, but not all of them.(This is not a checkbox list, but individual checkboxes).Any 1 of 6 different checkboxes selected makes a txtBox visible for users to enter a date.If they don't select one of these checkBoxes which require a date - it doesn't matter, the form will still be valid.I don't think validation groups can work here so looking towards doing through .vbHere's the existing code:
Public
Sub chkBoxI_CheckedChanged(ByVal sender
As
[code]...
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Apr 15, 2010
I populate two dropdownlist in asp.net. Both are assigned to a required field validator.
The codebehind is as below
[Code]....
the designer code is as below
[Code]....
Now what happens is, when i choose a field from the dropdown and once again when i choose the "-- Select--", the validator appears and then disappears.Where am I going wrong?Why doesnt the validator stay?RegardsHema
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Jun 28, 2010
I have a repeater control and inseid it's ItemTemplate and AlternateItemTemplate, I have the following code (toy code):
[Code]....
The problem is, when I click the button it shows a '*' in front of every textbox in odd or even items, instead of validating only the textbox in that item.
How can I validate only the text box inside the item in which the button being clicked resides?
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Mar 7, 2011
I have the following code, i add code for required validator, but when you make selection from dropdown to create the table, the page generates an error. Should the logic be somewhere else to add it to the table? i mean, dont they have to be there so when you submit the form, it fires the validation?
[Code]....
Here is the error that comes up, when i make a selection from my dropdown that creates the table.
Line: 938
Error: Sys.WebForms.PageRequestManagerServerErrorException: Control 'rfvtxtCam1' referenced by the ControlToValidate property of 'rfvtxtCam1' cannot be validated.
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Jun 28, 2010
I have a textbox with a required field validator and two buttons .One to save and other to cancel the action. On clicking the cancel button i am clearing the text entered in textbox.
The required filed validators is working on the save button if the textbox is empty. But on my cancel button click the required field validators message is blinking .
I am giving the mark up of my controls below:
[Code]....
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Sep 17, 2010
I want to apply styles on the message (i.e. Name field is required) display by the asp.net required field validator control.
Styles=border, padding, background-color, font-color, font-weight, img etc
And I also want highlight the border or asp.net textbox and asp.net dropdown list with which this control is associated.
RequiredFieldValidator does not have style property !
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Jan 19, 2011
I'm trying to create a custom control that has a dropdown list and a required field validator in it.I've got as a far as being able to set the error message if the control fails to validate, but I can't actually get it to validate, not can I figure out how to call a .Validate method server side. This is driving me nuts!
To create my control, I followed the article here I ran the text box example through, and I can get that to validate without any problems, so I then went through and created a new set of class files relating to a drop down list.Anyone got any thoughts, or hints as to what might be wrong, or where I should start looking?
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