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  • ASP.NET控件生命周期

    ASP.NET控件的生命周期一共经历11个过程,我们可以重写它们各自的方法。
    如下,按次序:
    1)OnInit (初始化)
         方法原型:
         protected override void OnInit(EventArgs e)
        
    2)LoadViewState (装载视图)
          方法原型:
          protected override void LoadViewState(object savedState)

    3)LoadPostData (回传数据处理)
          - 控件必须实现IPostBackDataHandler接口
          方法原型:
          public virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection)

    4)OnLoad (加载事件)
          方法原型:
          protected override void OnLoad(EventArgs e)

    5)RaisePostDataChangedEvent (回传事件通知)
          - 控件必须实现IPostBackDataHandler接口
          方法原型:
          public virtual void RaisePostDataChangedEvent()

    6)RaisePostBackEvent (处理回发事件)
          - 控件必须实现IPostBackDataHandler接口
          方法原型:
          public virtual void RaisePostBackEvent(string eventArgument)

    7)OnPreRender (预呈现)
          方法原型:
          protected override void OnPreRender(EventArgs e)      

    8)SaveViewState (保存视图状态)
          方法原型:
          protected override object SaveViewState()

    9)Render (呈现)
          方法原型:
          protected override void Render(HtmlTextWriter writer)

    10)OnUnload (卸载)
          方法原型:
          protected override void OnUnload(EventArgs e)

    11)Dispose (释放资源)
           方法原型:
          public override void Dispose() 
         

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  • 原文地址:https://www.cnblogs.com/davidgu/p/1542949.html
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