zoukankan      html  css  js  c++  java
  • ASP.NET Page执行顺序如:OnPreInit()、OnInit()

    http://www.cnblogs.com/yeminglong/archive/2012/10/16/2725664.html

    当页面进行回发时,如点击按钮,以上事件都会重新执行一次,这时的执行顺序为:
    1. OnPreInit
    2. OnInit
    3. OnInitComplete
    4. OnPreLoad
    5. Page_Load
    6. OnLoad
    7. Button_Click
    8. OnLoadComplete
    9. OnPreRender
    可以看到,Button_Click事件位于OnLoad之后执行,可以测试一下:

    public partial class TestControls : System.Web.UI.Page
        {
            static int count = 0;
            protected void Page_Load(object sender, EventArgs e)
            {
                Response.Write(count+ "Page_Load <br />");
                count++;
            }
            protected override void OnPreInit(EventArgs e)
            {
                base.OnPreInit(e);
                Response.Write(count + "OnPreInit <br />");
                count++;
            }
            protected override void OnInit(EventArgs e)
            {
                base.OnInit(e);
                Response.Write(count + "OnInit <br />");
                count++;
            }
            protected override void OnLoad(EventArgs e)
            {
                base.OnLoad(e);
                Response.Write(count + "OnLoad <br />");
                count++;
            }
            protected override void OnPreLoad(EventArgs e)
            {
                base.OnPreLoad(e);
                Response.Write(count + "OnPreLoad <br />");
                count++;
            }
            protected override void OnLoadComplete(EventArgs e)
            {
                base.OnLoadComplete(e);
                Response.Write(count + "OnLoadComplete <br />");
                count++;
            }
            protected override void OnInitComplete(EventArgs e)
            {
                base.OnInitComplete(e);
                Response.Write(count + "OnInitComplete <br />");
                count++;
            }
           protected override void OnUnload(EventArgs e)
            {
                base.OnUnload(e);
            }
            protected override void OnDataBinding(EventArgs e)
            {
                base.OnDataBinding(e);
                Response.Write(count + "OnDataBinding <br />");
                count++;
            }
            protected override void OnPreRender(EventArgs e)
            {
                base.OnPreRender(e);
                Response.Write(count + "OnPreRender <br />");
                count++;
            }
            protected void btnGraphics_Click(object sender, EventArgs e)
            {
                //Bitmap bmp = new Bitmap(10, 10);
                //Graphics g = Graphics.FromImage(bmp);
                Response.Write(count + "btnGraphics_Click <br />");
                count++;
            }
        }
    
  • 相关阅读:
    css 动态换肤
    javascript 传递中文乱码的解决方案
    Iframe自动适应宽度和高度(both IE and Firefox )
    asp.net 读取Excel
    使用 sp_executesql
    用Javascript实现鼠标拖拽网页表单[转]
    教你看别人的QQ密码
    ASP.NET设置数据格式总结(二)[转]
    老百姓上的三大当[转]
    showModalDialog()、showModelessDialog()方法使用详解[转]
  • 原文地址:https://www.cnblogs.com/jingzhishen/p/3452640.html
Copyright © 2011-2022 走看看