mirror of https://github.com/AMT-Cheif/Stylet.git
103 lines
3.4 KiB
C#
103 lines
3.4 KiB
C#
using System;
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using System.Collections.Generic;
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namespace Stylet
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{
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/// <summary>
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/// Key-value pair useful for attaching labels to objects and displaying them in the view
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/// </summary>
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/// <typeparam name="T">Type of the value</typeparam>
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public class LabelledValue<T> : PropertyChangedBase, IEquatable<LabelledValue<T>>
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{
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private string _label;
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/// <summary>
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/// Label associated with this item. This is displayed in your View
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/// </summary>
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public string Label
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{
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get { return this._label; }
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set { SetAndNotify(ref this._label, value); }
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}
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private T _value;
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/// <summary>
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/// Value associated with this item. This is used by your ViewModel
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/// </summary>
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public T Value
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{
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get { return this._value; }
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set { SetAndNotify(ref this._value, value); }
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}
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/// <summary>
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/// Create a new LabelledValue, without setting Label or Value
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/// </summary>
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public LabelledValue()
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{
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}
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/// <summary>
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/// Create a new LabelledValue, with the given label and value
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/// </summary>
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/// <param name="label">Label to use. This value is displayed in your view</param>
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/// <param name="value">Value to use. This is used by your ViewModel</param>
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public LabelledValue(string label, T value)
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{
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this._label = label;
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this._value = value;
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}
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/// <summary>
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/// Indicates whether the current object is equal to another object of the same type.
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/// </summary>
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/// <param name="other">An object to compare with this object</param>
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/// <returns>true if the current object is equal to the other parameter; otherwise, false.</returns>
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public bool Equals(LabelledValue<T> other)
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{
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return other == null ? false : this.Label == other.Label && EqualityComparer<T>.Default.Equals(this.Value, other.Value);
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}
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/// <summary>
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/// Indicates whether the current object is equal to another object of any type
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/// </summary>
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/// <param name="obj">An object to compare with this object</param>
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/// <returns>true if the current object is of the same type as the other object, and equal to the other parameter; otherwise, false.</returns>
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public override bool Equals(object obj)
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{
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return this.Equals(obj as LabelledValue<T>);
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}
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/// <summary>
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/// Returns a hash code for the this object
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/// </summary>
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/// <returns>A hash code for this object.</returns>
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public override int GetHashCode()
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{
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return new { this.Label, this.Value }.GetHashCode();
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}
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/// <summary>
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/// Return the Label associated with this object
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/// </summary>
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/// <returns>The Label associated with this object</returns>
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public override string ToString()
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{
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return this.Label;
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}
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}
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/// <summary>
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/// Convenience class for constructing LabellelValue{T}'s
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/// </summary>
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public static class LabelledValue
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{
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/// <summary>
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/// Construct a new LabelledValue{T}, using method type inference
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/// </summary>
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public static LabelledValue<T> Create<T>(string label, T value)
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{
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return new LabelledValue<T>(label, value);
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}
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}
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}
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