ASP.NET页面生命周期

我们都知道人是有生命的，一个人从呱呱落地到慢慢的老去都要经历一个生命的轮回，这是生命的一个周期。同样，ASP.NET开发的web页面也有它自己的生命周期，从生成道销毁也经历了不同的阶段和过程。

1.独立页面的生命周期事件顺序

protected void Page_PreInit(object sender, EventArgs e)
        {
            Response.Write("Page_PreInit<br/>");
        }
        protected void Page_Init(object sender, EventArgs e)
        {
            Response.Write("Page_Init<br/>");

        }
        protected void Page_InitComplete(object sender, EventArgs e)
        {
            Response.Write("Page_InitComplete<br/>");

        }
        protected void Page_PreLoad(object sender, EventArgs e)
        {
            Response.Write("Page_PreLoad<br/>");

        }
        protected void Page_Load(object sender, EventArgs e)
        {
            Response.Write("Page_Load<br/>");

        }
        protected void Page_LoadComplete(object sender, EventArgs e)
        {
            Response.Write("Page_LoadComplete<br/>");

        }
        protected void Page_PreRender(object sender, EventArgs e)
        {
            Response.Write("Page_PreRender<br/>");

        }
        protected void Page_PreRenderComplete(object sender, EventArgs e)
        {
            Response.Write("Page_PreRenderComplete<br/>");

        }
        protected void Page_SaveStateComplete(object sender, EventArgs e)
        {
            Response.Write("Page_SaveStateComplete<br/>");

        }
        protected void Page_Unload(object sender, EventArgs e)
        {
            //Response.Write("Page_Unload<br/>");
            int i = 0;
            i++;//这行代码是用来设置断点的，这里不能用Response.Write
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Write("Button事件触发！<br/>");
        }

 输出结果：

Page_PreInit
Page_Init
Page_InitComplete
Page_PreLoad
Page_Load
Page_LoadComplete
Page_PreRender
Page_PreRenderComplete
Page_SaveStateComplete

button事件激发执行顺序

Page_PreInit
Page_Init
Page_InitComplete
Page_PreLoad
Page_Load
Button 事件触发！
Page_LoadComplete
Page_PreRender
Page_PreRenderComplete
Page_SaveStateComplete 

2.具有master页的生命周期事件顺序

  protected void Page_PreInit(object sender, EventArgs e)
        {
            Response.Write("MasterPage_PreInit<br/>");
        }
        protected void Page_Init(object sender, EventArgs e)
        {
            Response.Write("MasterPage_Init<br/>");
        }
        protected void Page_InitComplete(object sender, EventArgs e)
        {
            Response.Write("MasterPage_InitComplete<br/>");
        }
        protected void Page_PreLoad(object sender, EventArgs e)
        {
            Response.Write("MasterPage_PreLoad<br/>");
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            Response.Write("MasterPage_Load<br/>");
        }
        protected void Page_LoadComplete(object sender, EventArgs e)
        {
            Response.Write("MasterPage_LoadComplete<br/>");
        }
        protected void Page_PreRender(object sender, EventArgs e)
        {
            Response.Write("MasterPage_PreRender<br/>");
        }
        protected void Page_PreRenderComplete(object sender, EventArgs e)
        {
            Response.Write("MasterPage_PreRenderComplete<br/>");
        }
        protected void Page_SaveStateComplete(object sender, EventArgs e)
        {
            Response.Write("MasterPage_SaveStateComplete<br/>");
        }
        protected void Page_Unload(object sender, EventArgs e)
        {
            //Response.Write("MasterPage_Unload<br/>");
            int i = 0;
            i++;//这行代码是用来设置断点的，这里不能用Response.Write
        }

 输出结果：

Page_PreInit
MasterPage_Init
Page_Init
Page_InitComplete
Page_PreLoad
Page_Load
MasterPage_Load
Page_LoadComplete
Page_PreRender
MasterPage_PreRender
Page_PreRenderComplete
Page_SaveStateComplete

单击button 事件执行顺序

Page_PreInit
Page_Init
Page_InitComplete
Page_PreLoad
Page_Load
Button 事件触发！
Page_LoadComplete
Page_PreRender
Page_PreRenderComplete
Page_SaveStateComplete 

 

参考：亮剑.net