Web Forms :: How To Implement Custom Validator For Date Field
Apr 23, 2010
n my Asp.net / C# page I have 1 drop down and 1 date field. Dropdown contains 2 items "Item1", "Item2" and "Item3" I want to implement following logicBy Default datefield will not visible Once user select "Item2" thne this field will be visibile and this field should be required and check for entered date should not be less than toays date. If select "Item1" or "Item3" thne this field should not be visible and there should be no validation on date field.
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Jan 12, 2010
How can validate Password field using Custom validater control in asp.net 2.0 ?
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Jul 13, 2010
Is it possible?
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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!
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Jun 4, 2010
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Jan 29, 2010
I have an edit template on gridview which opens a text box and button with a custom validator .
On button press I have to validate the text in edit item template with a text field in gridview row template.
I am having a hard time fetching the data of the edit template textbox. Even though both custom validator and textbox are in same edit item template but intellisense is not picking it up.
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I am doing this as
protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args)
{
GridViewRow gvrow = (GridViewRow)(source as Control).Parent.Parent;
int index = gvrow.RowIndex+1;
// TextBox txttmp=(TextBox)
Label lbl = (Label)gvComp.Rows[index].FindControl("lblSecShare");
decimal CSh = Convert.ToDecimal(lbl.Text);
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Dec 14, 2010
How to compare tow date in format using custom validator and else. I have java script function like as. I want to call this function by using custom validator as
< </ asp:CustomValidator id="CustomValidator2" runat="server" ControlToValidate = "tbMyDate1"
EnableClientScript="True" Display="Static" ClientValidationFunction="Compare" SetFocusOnError="True" >asp:CustomValidator>
function { document.getElementById( Compare()"lblrefdate").innerText="";var m_names = new Array(
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec");
var { { dispMM=i+1; } }
dispdate=document.getElementById("tbMyDate");var
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document.getElementById( } }
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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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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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Dec 17, 2010
I created my custom validator in one project, something like that:
[Code]....
he composite control in another project. I added a reference of the custom validator project to the composite control project. I have a textbox in a composite control and I would like to validate this textbox by the composite control I created. But how can I do that? How can I create the custom validator instance that is linked to the custom validator I created?
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Feb 21, 2011
i already defined culture too in page. but still it's showing enter valid date
my markup
[Code]....
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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.
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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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I have a validator callout extender that works, it shows the callout box. But, it does a postback. It didn't do a post back the first time I clicked the button but it did for subsequent times. I read on the AJAX site that a custom validator must be used with this for it to work. I'm currently using this with a required field and regular expression validator. It works, the callout appears, but it doesn't work every time with out the post back.I posted this to see if there is a way to get this to work with a required field and regular expression validator, with out using a custom validator. I'm using the newest release of the toolkit, so I thought the documentation may be old, since the callout is appearing.
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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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Mar 18, 2011
how to use ASP Required Field Validator with AS.NET DDL the default selected value is 0 ...and the user shall select any value other than 0 so how can i handle that with ASP.NET Validators?
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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.
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I have a range validator to prevent people from putting a date in the future.
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[Code]....
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Apr 5, 2010
I am working in asp.net 2.0 application programing.
How to use a compare validator for comparing two date.
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Dec 7, 2010
I have a details view with editing enabled. When editing, if the value of the CurrentResident field is changed from Y to N (it is restricted to Y/N), I want to activate a required field validator on the DepartureDate field. The DepartureDate attribute allows nulls in the database structure, but I want it to be required if the client is no longer a resident. How can I accomplish this?
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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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