public void IsValidWhenAllValidatorsAreValid()
{
var validatableObject = new ValidatableTestObject();
var validator = PropertyValidator
.For(validatableObject, o => o.SomeStringProperty)
.Required("Error occurred!");
var anotherValidator = PropertyValidator
.For(validatableObject, o => o.AnotherStringProperty)
.Required("Error occurred!");
var modelValidator = new ModelValidator(validator, anotherValidator);
Assert.IsFalse(modelValidator.IsValid);
validatableObject.SomeStringProperty = "valid";
Assert.IsFalse(modelValidator.IsValid);
validatableObject.AnotherStringProperty = "valid";
Assert.IsTrue(modelValidator.IsValid);
validatableObject.AnotherStringProperty = "";
Assert.IsFalse(modelValidator.IsValid);
}
public CredentialsViewModel()
{
LoginCommand = new ActionCommand(_ => Result = AuthenticationDialogResult.Ok);
CancelCommand = new ActionCommand(_ => Result = AuthenticationDialogResult.Cancel);
LoginValidator = PropertyValidator.For(this, x => x.Login)
.Required(Resources.LoginRequired);
PasswordValidator = PropertyValidator.For(this, x => x.Password)
.Required(Resources.PasswordRequired);
ModelValidator = new ModelValidator(LoginValidator, PasswordValidator);
ModelValidator.PropertyChanged += (s, e) =>
{
if (e.PropertyName == nameof(ModelValidator.IsValid))
{
IsValid = ModelValidator.IsValid;
}
};
}