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Custom validation Page_Validators[i].isvalid always come as true


Custom validation Page_Validators[i].isvalid always come as true

By : user2952338
Date : November 19 2020, 12:41 AM
Hope that helps RegularExpressionValidators don't check for empty strings - they leave that to the RequiredFieldValidator.
When you have both validators, the RequiredFieldValidator will set the className="ErrorControl" but then the RegularExpressionValidator will reset it to className="". This is why it is not changing border color.
code :
function WebForm_OnSubmit() {
    if (typeof (ValidatorOnSubmit) == "function" && ValidatorOnSubmit() == false) {

        // find and remove all .ErrorControl classes
        var errorControls = document.querySelectorAll('.ErrorControl');
        for (var ec = 0; ec < errorControls.length; ec++) {
            errorControls[ec].className = "";
        }

        for (var i in Page_Validators) {
            try {
                var control = document.getElementById(Page_Validators[i].controltovalidate);
                alert(i);
                alert(Page_Validators[i].isvalid);
                if (!Page_Validators[i].isvalid) {
                    control.className = "ErrorControl";
                } // no need to remove ErrorControl if valid
            } catch (e) { }
        }
        return false;
    }
}


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Knockout Validation isValid always returns true

Knockout Validation isValid always returns true


By : Michele Buompane
Date : March 29 2020, 07:55 AM
To fix this issue ViewModel is just a constructor not an instance of your implemented model. So you applied errors properties to constructor and also tried to validate this constructor that does not sense.
Change ViewModel to self in save method:
code :
    self.save = function () {
        console.log("Valid: " + self.errors.length);
        if (ViewModel.errors().length == 0) {
            $.ajax("@Url.Content("~/Survey/TEST/")", {
                data: ko.toJSON(self),
                type: "post",
                contentType: 'application/json',
                dataType: 'json'
            });
        } else {
            self.errors.showAllMessages();
        }
    };
// create instance of model
var vm = new ViewModel; 
// setup validation for instance
vm.errors = ko.validation.group(vm);
// apply bindings
ko.applyBindings(vm);
Knockout validation - isValid() always true after value change

Knockout validation - isValid() always true after value change


By : Candicebaylor
Date : March 29 2020, 07:55 AM
Any of those help The problem is that you're not escaping your alternation (|). If you add parenthesis it should work:
code :
params: new RegExp("^([1-9][0-9]*(\\,\\d{1,2})?|0+\\,\\d{1,2})$")
'1234a'.test(/^[1-9][0-9]*(\\,\\d{1,2})?|0+\\,\\d{1,2}$/) //returns true
'1234a'.test(/^([1-9][0-9]*(\\,\\d{1,2})?|0+\\,\\d{1,2})$/) //returns false
Knockout validation plugin - isValid( ) always returns true

Knockout validation plugin - isValid( ) always returns true


By : Miss Bel
Date : March 29 2020, 07:55 AM
will help you You need call the ko.validation.registerExtenders(); before using any of validation ko.validation provided extenders.
So move this line before creating your viewmodel:
code :
$(document).ready(function () {
    var userName = $('input:text[name=username]').val();
    var password = $('input:text[name=password]').val();
    ko.validation.registerExtenders();
    ko.applyBindings(new viewmodel(userName, password));

});
Custom Validation Attribute Always Returns IsValid==true

Custom Validation Attribute Always Returns IsValid==true


By : Diana T
Date : March 29 2020, 07:55 AM
Hope that helps I am trying to get a simple custom validation attribute working, but can't see what I am missing. , Use
code :
Validator.TryValidateObject(test, contx, results, true);
Model validation - Why ModelState.IsValid always returns true even when no values are supplied?

Model validation - Why ModelState.IsValid always returns true even when no values are supplied?


By : Enfeebler SK
Date : March 29 2020, 07:55 AM
This might help you I don't know why your model is valid if you don't supply gender, but you can make this value not have a default value by defining the Gender value as nullable, as follows:
code :
public class Request
{
    public int id { get; set; }

    public string Name { get; set; }

    [Required]
    public Gender? Gender { get; set; }
}
public enum Gender
{
    Unknown = 0,
    Male,
    Female
} 
<Request xmlns:i="http://www.w3.org/2001/XMLSchema-instance" 
         xmlns="http://schemas.datacontract.org/2004/07/webapi1.Models">
    <id>1</id>
    <Name>testName</Name>      
</Request>
id=1,Name=testname
[Required]
public Gender? Gender { get; set; }
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