Исходный код вики Change notify

Редактировал(а) Alexandr Fokin 2024/08/25 18:10

version	line-number	content
1.4	1	\|(% style="width:81px" %) \|(% style="width:1356px" %)(((
	2	C# - Intercepting property changes in subclasses
1.2	3	[[https:~~/~~/stackoverflow.com/questions/6078859/c-sharp-intercepting-property-changes-in-subclasses>>https://stackoverflow.com/questions/6078859/c-sharp-intercepting-property-changes-in-subclasses]]
1.4	4
	5	ObservableObject
	6	[[https:~~/~~/learn.microsoft.com/ru-ru/dotnet/communitytoolkit/mvvm/observableobject>>https://learn.microsoft.com/ru-ru/dotnet/communitytoolkit/mvvm/observableobject]]
	7	)))
1.2	8	\|(% style="width:81px" %) \|(% style="width:1356px" %)[[Привязка>>doc:Разработка.NET.Frameworks and Apps.GUI.WPF.Механизмы.Привязка.WebHome]]
1.1	9	\|(% style="width:81px" %) \|(% style="width:1356px" %)(((
	10	\|{{code language="c#"}}/// <summary>
	11	/// Контейнер с INotifyPropertyChanged
	12	/// </summary>
	13	public class ObservableContainer<T>
	14	: INotifyPropertyChanged,
	15	IEquatable<ObservableContainer<T>>,
	16	IEquatable<T>
	17	{
	18	#region prop
	19
	20	private T _data;
	21
	22	public event PropertyChangedEventHandler PropertyChanged;
	23
	24	public T Data
	25	{
	26	get => _data;
	27	set
	28	{
	29	_data = value;
	30	PropertyChanged?.Invoke(
	31	this,
	32	new PropertyChangedEventArgs(nameof(Data))
	33	);
	34	}
	35	}
	36
	37	#endregion
	38
	39
	40	#region ctor
	41
	42	public ObservableContainer() { }
	43	public ObservableContainer(T data)
	44	{
	45	_data = data;
	46	}
	47
	48	#endregion
	49
	50
	51	#region override
	52
	53	public override string ToString()
	54	{
	55	return _data?.ToString() ?? "null";
	56	}
	57
	58	public override int GetHashCode()
	59	{
	60	return _data?.GetHashCode() ?? 0;
	61	}
	62
	63	public override bool Equals(object obj)
	64	{
	65	if (obj is ObservableContainer<T> o1)
	66	{
	67	return Equals(other: o1);
	68	}
	69	else if (obj is T o2)
	70	{
	71	return Equals(other: o2);
	72	}
	73
	74	return false;
	75	}
	76
	77	public bool Equals(ObservableContainer<T> other)
	78	{
	79	if (other.Data == null && Data == null)
	80	{
	81	return true;
	82	}
	83	if (other.Data != null)
	84	{
	85	other.Data.Equals(Data);
	86	}
	87	if (Data != null)
	88	{
	89	Data.Equals(other.Data);
	90	}
	91
	92	return false;
	93	}
	94
	95	public bool Equals(T other)
	96	{
	97	if (other == null && Data == null)
	98	{
	99	return true;
	100	}
	101	if (other != null)
	102	{
	103	other.Equals(Data);
	104	}
	105	if (Data != null)
	106	{
	107	Data.Equals(other);
	108	}
	109
	110	return false;
	111	}
	112
	113	#endregion
	114
	115	#region operator
	116
	117	public static implicit operator ObservableContainer<T>(T x)
	118	{
	119	return new ObservableContainer<T>(x);
	120	}
	121	public static implicit operator T(ObservableContainer<T> x)
	122	{
	123	return x.Data;
	124	}
	125
	126	#endregion
	127	}{{/code}}
	128	\|{{code language="c#"}}public class TestModel2
	129	{
	130	public ObservableContainer<string> Property1 { get; set; }
	131	= new ObservableContainer<string>();
	132	public ObservableContainer<string> Property2 { get; set; }
	133	= new ObservableContainer<string>();
	134	}{{/code}}
	135	\|{{code language="xml"}}<UniformGrid Rows="2" Columns="2">
1.3	136	<TextBox Text="Prop1.Data"></TextBox>
1.1	137	<TextBox Text="{Binding Path=Property1.Data, Mode=OneWay}"></TextBox>
1.2	138	<Button Content="Right Bottom" ></Button>
1.1	139
1.3	140	<TextBox Text="Prop2.Data"></TextBox>
1.1	141	<TextBox Text="{Binding Path=Property2.Data, Mode=TwoWay}"></TextBox>
1.2	142	<Button Content="Right Bottom" Click="Button_Click" ></Button>
1.1	143	</UniformGrid>{{/code}}
	144	)))
	145	\|(% style="width:81px" %) \|(% style="width:1356px" %)
	146
	147

Исходный код вики Change notify

Приложения

Навигация