BindableProperty.BindingPropertyChangingDelegate<TPropertyType> Delegate
Definition
Important
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Strongly-typed delegate for BindableProperty.PropertyChanging.
public delegate void BindableProperty.BindingPropertyChangingDelegate<in TPropertyType>(BindableObject bindable, TPropertyType oldValue, TPropertyType newValue);type BindableProperty.BindingPropertyChangingDelegate<'PropertyType> = delegate of BindableObject * 'PropertyType * 'PropertyType -> unitType Parameters
- TPropertyType
The type of the bound property.
This type parameter is contravariant. That is, you can use either the type you specified or any type that is less derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics.Parameters
- bindable
- BindableObject
The bindable object that contains the property.
- oldValue
- TPropertyType
The old property value.
- newValue
- TPropertyType
The new property value.