Behavior Behavior Class

Definition

Base class for generalized user-defined behaviors that can respond to arbitrary conditions and events.

public abstract class Behavior : Xamarin.Forms.BindableObject
type Behavior = class
    inherit BindableObject
    interface IAttachedObject
Inheritance
Derived

Remarks

Application developers should specialize the Behavior<T> generic class, instead of directly using Behavior.

Properties

AssociatedType AssociatedType

Gets the type of the objects with which this Behavior can be associated.

BindingContext BindingContext

Gets or sets object that contains the properties that will be targeted by the bound properties that belong to this BindableObject.

(Inherited from BindableObject)

Methods

ApplyBindings() ApplyBindings()

Apply the bindings to BindingContext.

(Inherited from BindableObject)
ClearValue(BindableProperty) ClearValue(BindableProperty)

Clears any value set by Xamarin.Forms.BindableObject.SetValue for property.

(Inherited from BindableObject)
ClearValue(BindablePropertyKey) ClearValue(BindablePropertyKey)

Clears any value set by Xamarin.Forms.BindableObject.SetValue for the property that is identified by propertyKey.

(Inherited from BindableObject)
GetValue(BindableProperty) GetValue(BindableProperty)

Returns the value that is contained the BindableProperty.

(Inherited from BindableObject)
GetValues(BindableProperty, BindableProperty) GetValues(BindableProperty, BindableProperty)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
GetValues(BindableProperty, BindableProperty, BindableProperty) GetValues(BindableProperty, BindableProperty, BindableProperty)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
IsSet(BindableProperty) IsSet(BindableProperty)

Returns true if the target property exists and has been set.

(Inherited from BindableObject)
OnAttachedTo(BindableObject) OnAttachedTo(BindableObject)

Application developers override this method to implement the behaviors that will be associated with bindable.

OnBindingContextChanged() OnBindingContextChanged()

Override this method to execute an action when the BindingContext changes.

(Inherited from BindableObject)
OnDetachingFrom(BindableObject) OnDetachingFrom(BindableObject)

Application developers override this method to remove the behaviors from bindable that were implemented in a previous call to the Xamarin.Forms.Behavior.OnAttachedTo method.

OnPropertyChanged(String) OnPropertyChanged(String)

Call this method from a child class to notify that a change happened on a property.

(Inherited from BindableObject)
OnPropertyChanging(String) OnPropertyChanging(String)

Call this method from a child class to notify that a change is going to happen on a property.

(Inherited from BindableObject)
RemoveBinding(BindableProperty) RemoveBinding(BindableProperty)

Removes a previously set binding.

(Inherited from BindableObject)
SetBinding(BindableProperty, BindingBase) SetBinding(BindableProperty, BindingBase)

Assigns a binding to a property.

(Inherited from BindableObject)
SetValue(BindableProperty, Object) SetValue(BindableProperty, Object)

Sets the value of the specified property.

(Inherited from BindableObject)
SetValue(BindablePropertyKey, Object) SetValue(BindablePropertyKey, Object)

Sets the value of the propertyKey.

(Inherited from BindableObject)
SetValueCore(BindableProperty, Object, SetValueFlags) SetValueCore(BindableProperty, Object, SetValueFlags)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
UnapplyBindings() UnapplyBindings()

Unapplies all previously set bindings.

(Inherited from BindableObject)

Explicit Interface Implementations

IAttachedObject.AttachTo(BindableObject) IAttachedObject.AttachTo(BindableObject)

AFor internal use by the Xamarin.Forms platform.

IAttachedObject.DetachFrom(BindableObject) IAttachedObject.DetachFrom(BindableObject)

For internal use by the Xamarin.Forms platform.

IDynamicResourceHandler.SetDynamicResource(BindableProperty, String) IDynamicResourceHandler.SetDynamicResource(BindableProperty, String)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)

Events

BindingContextChanged BindingContextChanged

Raised whenever the BindingContext property changes.

(Inherited from BindableObject)
PropertyChanged PropertyChanged

Raised when a property has changed.

(Inherited from BindableObject)
PropertyChanging PropertyChanging

Raised when a property is about to change.

(Inherited from BindableObject)

Extension Methods

SetBinding(BindableObject, BindableProperty, String, BindingMode, IValueConverter, String) SetBinding(BindableObject, BindableProperty, String, BindingMode, IValueConverter, String)

Creates and applies a binding to a property.

SetBinding<TSource>(BindableObject, BindableProperty, Expression<Func<TSource,Object>>, BindingMode, IValueConverter, String) SetBinding<TSource>(BindableObject, BindableProperty, Expression<Func<TSource,Object>>, BindingMode, IValueConverter, String)

Creates and applies a binding from an expression.

GetGroup<TView,TItem>(TItem) GetGroup<TView,TItem>(TItem)

For internal use by platform renderers.

GetGroupHeaderContent<TView,TItem>(TItem) GetGroupHeaderContent<TView,TItem>(TItem)

For internal use by platform renderers.

GetIndex<TView,TItem>(TItem) GetIndex<TView,TItem>(TItem)

For internal use by platform renderers.

GetIsGroupHeader<TView,TItem>(TItem) GetIsGroupHeader<TView,TItem>(TItem)

For internal use by platform renderers.

SetIsGroupHeader<TView,TItem>(TItem, Boolean) SetIsGroupHeader<TView,TItem>(TItem, Boolean)

For internal use by platform renderers.

LoadFromXaml<TXaml>(TXaml, String) LoadFromXaml<TXaml>(TXaml, String)

Returns an initialized view by loading the specified xaml.

LoadFromXaml<TXaml>(TXaml, Type) LoadFromXaml<TXaml>(TXaml, Type)

Returns a TXaml with the properties that are defined in the application manifest for callingType.

Applies to

See Also