ValidationBehavior Class

Definition

Namespace:

Xamarin.CommunityToolkit.Behaviors.Internals

Assembly:

Xamarin.CommunityToolkit.dll

Package:

Xamarin.CommunityToolkit v1.1.0

The ValidationBehavior allows users to create custom validation behaviors. All of the validation behaviors in the Xamarin Community Toolkit inherit from this behavior, to expose a number of shared properties. Users can inherit from this class to create a custom validation behavior currently not supported through the Xamarin Community Toolkit. This behavios cannot be used directly as it's abstract.

C#‎

public abstract class ValidationBehavior : Xamarin.CommunityToolkit.Behaviors.Internals.BaseBehavior<Xamarin.Forms.VisualElement>

Inheritance

Behavior<TView>

BaseBehavior<VisualElement>

ValidationBehavior

Derived

Xamarin.CommunityToolkit.Behaviors.MultiValidationBehavior

Xamarin.CommunityToolkit.Behaviors.NumericValidationBehavior

Xamarin.CommunityToolkit.Behaviors.RequiredStringValidationBehavior

Xamarin.CommunityToolkit.Behaviors.TextValidationBehavior

Constructors

ValidationBehavior()

Fields

FlagsProperty	Backing BindableProperty for the Flags property.
ForceValidateCommandProperty	Backing BindableProperty for the ForceValidateCommand property.
InvalidStyleProperty	Backing BindableProperty for the InvalidStyle property.
InvalidVisualState
IsNotValidProperty	Backing BindableProperty for the IsNotValid property.
IsRunningProperty	Backing BindableProperty for the IsRunning property.
IsValidProperty	Backing BindableProperty for the IsValid property.
ValidStyleProperty	Backing BindableProperty for the ValidStyle property.
ValidVisualState
ValueProperty	Backing BindableProperty for the Value property.
ValuePropertyNameProperty	Backing BindableProperty for the ValuePropertyName property.

Properties

DefaultForceValidateCommand
DefaultValuePropertyName
Flags	Provides an enumerated value that specifies how to handle validation. This is a bindable property.
ForceValidateCommand	Allows the user to provide a custom System.Windows.Input.ICommand that handles forcing validation. This is a bindable property.
InvalidStyle	The Style to apply to the element when validation fails. This is a bindable property.
IsNotValid	Indicates whether or not the current value is considered not valid. This is a bindable property.
IsRunning	Indicates whether or not the validation is in progress now (waiting for an asynchronous call is finished).
IsValid	Indicates whether or not the current value is considered valid. This is a bindable property.
ValidStyle	The Style to apply to the element when validation is successful. This is a bindable property.
Value	The value to validate. This is a bindable property.
ValuePropertyName	Allows the user to override the property that will be used as the value to validate. This is a bindable property.
View	(Inherited from BaseBehavior<TView>)

Methods

Decorate(Object)
ForceValidate()	Forces the behavior to make a validation pass.
IsBound(BindableProperty, BindingBase)	(Inherited from BaseBehavior<TView>)
OnAttachedTo(TView)	(Inherited from BaseBehavior<TView>)
OnAttachedTo(VisualElement)
OnDetachingFrom(TView)	(Inherited from BaseBehavior<TView>)
OnDetachingFrom(VisualElement)
OnValidationPropertyChanged(BindableObject, Object, Object)
OnViewPropertyChanged(Object, PropertyChangedEventArgs)
ValidateAsync(Object, CancellationToken)

Applies to