BindableProperty.BindingPropertyChangingDelegate Delegate
Definition
Important
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Represents a delegate that is called when a bindable property value is about to change.
public delegate void BindableProperty.BindingPropertyChangingDelegate(BindableObject bindable, object oldValue, object newValue);type BindableProperty.BindingPropertyChangingDelegate = delegate of BindableObject * obj * obj -> unitPublic Delegate Sub BindableProperty.BindingPropertyChangingDelegate(bindable As BindableObject, oldValue As Object, newValue As Object)Parameters
- bindable
- BindableObject
The BindableObject instance that owns the property.
- oldValue
- Object
The current value of the property before the change.
- newValue
- Object
The new value that the property will be set to.
Remarks
This delegate is invoked before a property value is changed on a BindableObject. Like BindableProperty.BindingPropertyChangedDelegate, this delegate does not include information about which specific BindableProperty is changing when multiple properties share the same callback.
