ASP.NET动态加载用户控件的页面生成过程
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WebForm1.aspx.cs
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ASCX文件:search.ascx
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search.ascx.cs
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protected System.Web.UI.WebControls.TextBox TextBox1;
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/ContractedSubBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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执行顺序
WebForm1.aspx.cs> Page_Load() //加载WebForm1.ascx页面
WebForm1.aspx.cs> Page_Load()> PlaceHolder1.Controls.Add(control); //这个时候新加载的control的数据都是空的,包括postback的数据也是空的
search.ascx.cs> OnInit()
WebForm1.aspx.cs> Page_Load() //返回,继续
search.ascx.cs> Page_Load() //加载search.ascx页面
search.ascx.cs> OnPreRender() //生成search。ascx的html,这个时候会加载postback的数据
转载于:https://www.cnblogs.com/dannyr/archive/2004/10/13/51530.html
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