We have a form with a number of required fields. When I am on a required field and I hit the enter key the form does not submit. However, if I'm on a field that is not required, hitting the enter key does submit the form. This is problematic because submitting the form is what fires the validation to display the validation summary at the top. If I'm on a required field it doesn't fire this validation. It does seem to fire it's own validation and display my error text (which is just an asterisk) but people are not seeing this.
Does anyone know why a non-required field enter key would submit the form but a required field enter key wouldn't?
From what you've described, it sounds like you're using server-side validation. Try setting EnableClientScript to false on the validator, which will disable client-side validation.
If this is not enough, you can override the validation when the submit button is clicked like this:
<script type="text/javascript">
validateForm = function(){
var isValid = Page_ClientValidate("");
if (isValid){
//some custom logic if needed
}
return true; //do the postback even if validation fails?
//otherwise return isValid
}
</script>
<asp:Button ID="Button1" runat="server" OnClientClick="return validateForm();" ... />
Related
i m working on simple asp.net and in that i am using validators.
my situation is like that i have used reaquired field validator its working fine.
and after that if i ented data and fired insert query then data is inserted and sucessful message is displyed on the lable. but agin if i clik on submit button with empty fields then validator works but the lable of successful message does not disapper. how to hide that lable.
You need to use javascript to hide the success message, here is a sample
<script type="text/javascript">
function hide() {
document.getElementById('<%=lblSuccess.ClientID %>').style.display = 'none';
return false;
}
</script>
<asp:Label ID="lblSuccess" runat="server" Text="Success"></asp:Label>
..your form code
<asp:Button ID="btnOk" runat="server" Text="OK" OnClientClick="hide()" ValidationGroup="ValidateForm" />
Why javascript, the form doesn't get posted because validators don't let the form to be posted if the conditions aren't met, so you are left to hide the message dynamically with javascript
<script type="text/javascript">
function Hide() {
document.getElementById("Lable1").style.display = 'none';
return false;
}
</script>
<asp:Button ID="Button1" OnClientClick="Hide()" runat="server" onclick="Button1_Click" Text="Button"/>
and use
if (Page.IsValid){}
on clik event.
Show us some code of what you're up to and we can tell you more precisely where you are going wrong. In a nutshell though the visibility of that message is going to be persisted through a postback so you have to explicitly tell it to not be visible if validation has failed.
Set the label to visable=false and on save set the text value if required and change visible =true ?
On form load, do something like this:
TheValidMessageLabel.Visible = Page.IsValid;
You are probably just setting the visible state to true when it's valid and never setting it to false again.
Set your success label visibility in page load to false.
And only if operation is successfully set that label visibility to true.
cheers
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() {
$('body').fadeIn(500);
//Turn off all validation = its switched on dynamically
$.each(Page_Validators, function(index, validator) {
ValidatorEnable(validator, false);
});
});
function ToggleValidators(GroupName) {
$.each(Page_Validators, function(index, validator) {
if (validator.validationGroup == GroupName) {
ValidatorEnable(validator, true);
} else {
ValidatorEnable(validator, false);
}
});
}
</script>
ASPX Control Example...
<telerik:RadTextBox Width="196px" ID="txtFirstName" runat="server" MaxLength="50" Skin="Black"></telerik:RadTextBox>
<asp:RequiredFieldValidator ID="valFirstName" CssClass="Validator" runat="server" EnableClientScript="true" Display="Dynamic" ErrorMessage="You must enter your first name." ControlToValidate="txtFirstName" ValidationGroup="NeededForEmail"></asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" CssClass="Validator" runat="server" EnableClientScript="true" Display="Dynamic" ErrorMessage="You must enter your first name." ControlToValidate="txtFirstName" ValidationGroup="NeededForSubmit"></asp:RequiredFieldValidator>
ASPX Button Code...
<asp:Button ID="btnGetConfCode" runat="server" Text="Get Confirmation Code" OnClientClick="ToggleValidators('NeededForEmail')" OnClick="btnGetConfCode_Click" Width="100%" ValidationGroup="NeededForEmail"/>
<asp:Button ID="btnRegisterUser" runat="server" Text="Register" OnClientClick="ToggleValidators('NeededForSubmit')" OnClick="btnRegisterUser_Click" Width="100px" ValidationGroup="NeededForSubmit" />
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.
Thank you for help guys
You can set if the validators are "active" or not with client side code using the ValidatorEnable function. Basically it goes like this
var validator = document.getElementById('<%=Validator1.ClientID%>');
ValidatorEnable(validator , state); //where state is boolean
You can also trigger the validator to validate on some event (like for example the click of the buttons) using the ValidatorValidate(validator) function.
I am not sure which would work better for you (enabling/disabling the validators or custom triggering of the validation) but I suggest this article that will guide you in the right direction
ASP.NET Validation in Depth
There's no way to unhook them if EnableClientScript=true.
What you could do is set it to false. Then create a javascript validation method that is called on your submit-button onClientClick event.
In your method, you would have to call ValidatorValidate(control) for each control you want to validate client side
There's an example here:
http://msdn.microsoft.com/en-us/library/Aa479045#aspplusvalid_clientside
You could turn off the javascript validation by setting EnableClientScript="false" that would get rid of the lost focus validation.
You can use Custom Validator controls instead and either validate the input using Javascript on the client or within the event handler on the server. Ensure you set ValidateEmptyText="true" on the validation controls otherwise the events will not fire on an empty field.
Try to Enable on Both button click using javascript and disable it on textbox blur event.
Try resetting the onchange event for the input-control.
$(document).ready(function () {
$("#controlid").each(function () { this.onchange = null; })
});
var validator = document.getElementById('<%=Validator1.ClientID%>');
ValidatorEnable(validator , state);
It is working in javascript but when we use the page.Isvalid function on Server side it creates the problem to check page is valid or not.
simply type this code in page_load event
textboxname.Attributes.Add("onblur","ValidatorOnChange(event);");
i am using validators for validation and on linkbutton i am diaplaying popup.
my problem is i want to disable linkbutton means until page is validated means the popup should not be displayed till the page gets validated
<asp:LinkButton ID="LinkButton1" runat="server" CssClass="addProduct-disable" Enabled ="false"
Text="Assign Filter Criteria" CausesValidation="true"></asp:LinkButton>
Try to validate client-side, if possible, via AJAX-Methods.
You may consider using the jQuery event.preventDefault() method.
$('[id$="LinkButton1"]').click(function(event) {
if(! valdiateYourPage() ) {
event.preventDefault();
// display validation errors or something
}
else {
//proceed as normal
}
});
Put your page validation logic in the valdiateYourPage() javascript method. If it valdiates, then process as normal, if not then preventDefault() will stop any further event execution by your LinkButton.
I need to run some script by onclick() of some , checkbox particularly, to decide should i invoke WebForm_doPostBack() or not.
If I will submit form in myScript() myself, it will not cause validation of another asp.net validators, so I really need a native WebForm_doPostBack() call.
Should I handle a submit form event or are there any more "asp.net" ways to do it?
CustomValidators don't work with checkboxes:).
Just to ensure your assumptions that custom validators do not work with checkboxes is not the ONLY reason for wanting to handle the checkbox click seperately, here is some code that will validate checkboxes using ASP.NET custom validators.
Custom Validators have a ClientValidationFunction property that is called automatically when the __doPostback is called or the form is submitted.
//The Script
function validateCheckBox(source, arguments)
{
if(!source.checked) arguments.IsValid = false;//set IsValid property to false
}
//The Validator
<asp:CustomValidator ID="validateCheckbox" runat="server" ControlToValidate="CheckBox1" ErrorMessage="You REALLY need to check this!" Display="Static" ClientValidationFunction="validateCheckBox"/>
Don't you try simply putting your own validation at submit button like that :
btnSubmit.Attributes["onclick"] += "return myValidation();";
<script>
function myValidation()
{
// if you do not want to postback just return false...
return true;
}
</script>
EDIT : You can use Page_ValidationActive to programmatically enable / disable the client side validation of your page.
Page_ValidationActive A Boolean
value that indicates whether
validation should take place. Set this
variable to false to turn off
client-side validation
programmatically.
I have a page whose submit buttton does dot submit at all. It rathers has a some javascript in OnClientClick that employs some logic and redirects the user to a calculated URL. The thing is I want to use ASP.net default validation in this setup. I need to be able to query the state of the client side validation in the javascript. How do I do that?
This appears to be what your looking for, using ASP.NET Validation from client code
<asp:Button ID="btnAddEntry" runat="server" OnClientClick="ValidateAndAddNewEntry(); return false;" CausesValidation="true" ValidationGroup="AddEntry" Text="Create" />
JavaScript
function ValidateAndAddNewEntry() {
var res = Page_ClientValidate("AddEntry");
if ( res == true )
{
//Do work
}
}