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ObservableObjectBase Class

A simple object that implements the INotifyPropertyChanging and INotifyPropertyChanged interfaces.

public abstract class ObservableObjectBase
Inheritance:
object object
Derived:
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Constructors

ObservableObjectBase()

Initializes an instance of the class.

protected ObservableObjectBase()

Methods

OnPropertyChanged(PropertyChangedEventArgs)

Raises the PropertyChanged event.

protected virtual void OnPropertyChanged(PropertyChangedEventArgs e)
Parameter Type Description
e PropertyChangedEventArgs

The event data.

OnPropertyChanged(string?)

Raises the PropertyChanged event.

protected void OnPropertyChanged(string? propertyName = null)
Parameter Type Description
propertyName string

(Optional) The name of the property that changed.

OnPropertyChanging(PropertyChangingEventArgs)

Raises the PropertyChanging event.

protected virtual void OnPropertyChanging(PropertyChangingEventArgs e)
Parameter Type Description
e PropertyChangingEventArgs

The event data.

OnPropertyChanging(string?)

Raises the PropertyChanging event.

protected void OnPropertyChanging(string? propertyName = null)
Parameter Type Description
propertyName string

(Optional) The name of the property that changed.

SetProperty<T>(ref T, T, string?)

Called from a property setter to change the backing field's value and raise PropertyChanging and PropertyChanged notification events if the new value is not equal to the current value.

protected bool SetProperty<T>(ref T field, T newValue, string? propertyName = null)
Type Parameters:
T -

The type of the property that changed.

Parameter Type Description
field T

The backing field that holds the property's value, which may be updated.

newValue T

The new property value.

propertyName string

(Optional) The name of the property that changed.

Returns

bool:

true if the property was changed; otherwise, false.

Events

PropertyChanged

Occurs when a property value changes.

public event PropertyChangedEventHandler? PropertyChanged

Event Type

PropertyChangedEventHandler

PropertyChanging

Occurs when a property value is changing.

public event PropertyChangingEventHandler? PropertyChanging

Event Type

PropertyChangingEventHandler

Inherited Members

Extension Methods