using System;
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namespace Microsoft.Windows.Forms
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{
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public partial class Sprite
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{
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/// <summary>
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/// 状态改变事件索引标记
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/// </summary>
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private static readonly object EVENT_STATE_CHANGED = new object();
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private State m_State = State.Normal;
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/// <summary>
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/// 按钮状态
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/// </summary>
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public State State
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{
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get
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{
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return this.m_State;
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}
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set
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{
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if (value != this.m_State)
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{
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this.m_State = value;
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this.Feedback();
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this.OnStateChanged(EventArgs.Empty);
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}
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}
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}
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/// <summary>
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/// 按钮状态改变后发生
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/// </summary>
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public event EventHandler StateChanged
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{
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add { this.Events.AddHandler(EVENT_STATE_CHANGED, value); }
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remove { this.Events.RemoveHandler(EVENT_STATE_CHANGED, value); }
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}
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/// <summary>
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/// 按钮状态改变事件函数
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/// </summary>
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/// <param name="e">数据</param>
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protected virtual void OnStateChanged(EventArgs e)
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{
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EventHandler handler = this.Events[EVENT_STATE_CHANGED] as EventHandler;
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if (handler != null)
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handler(this, e);
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}
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}
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}
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