随笔分类 -  ASP.NET

摘要：1、数据库中的事务SET XACT_ABORT OFFBEGIN TRANSACTIONDECLARE @error INTSAVE TRANSACTION Point1UPDATE HR.Employees SET birthdate=DATEADD(DAY,0,GETDATE()) WHERE empid=1ROLLBACK TRANSACTION Point1UPDATE HR.Employees SET birthdate=DATEADD(DAY,0,GETDATE()) WHERE empid=2SET @error=@@ERRORIF(@error=0)BEGIN COMMI... 阅读全文

摘要：public class ucDataPager:CompositeControl,INamingContainer { private LinkButton lkbtnFirstLevel; private LinkButton lkbtnPreLevel; private LinkButton lkbtnLastLevel; private LinkButton lkbtnNextLevel;private List<LinkButton> lstPages; /// <summary> //... 阅读全文

摘要：其实所谓的页面生命周期就是Page的ProcessRequestMain方法中顺序调用了一些方法。private void ProcessRequestMain(bool includeStagesBeforeAsyncPoint, bool includeStagesAfterAsyncPoint){ try { HttpContext context = this.Context; string str = null; if (includeStagesBeforeAsyncPoint) { if (... 阅读全文

摘要：下面讨论一下MapHandlerExecutionStep和CallHandlerExecutionStepCallHandlerExecutionStep作用很简单，就是去调用通过MapHandlerExecutionStep找到的HttpHandlerinternal class CallHandlerExecutionStep : HttpApplication.IExecutionStep{ // Fields private HttpApplication _application; private AsyncCallback _completionCallback... 阅读全文

摘要：读了Rick Strahl的经典文章“A low-level Look at the ASP.NET Architecture”http://www.west-wind.com/presentations/howaspnetworks/howaspnetworks.asp感到受益颇深。我从代码对ASP.NET Application生命周期做一下简单的概括。1 根据扩展名映射路由到ASP.NET's processing pipeline2 调用ISAPIRuntime类的ProcessRequestpublic sealed class ISAPIRuntime : MarshalB 阅读全文

摘要：最近在使用ASP.NET提供的验证控件的时候想到一个问题当设置Button的ValidationGroup属性后，只能触发这个Group的Validator的验证方法。 <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="TextBox1" runat="serve 阅读全文

摘要：1 什么是Ajax?AJAX即 “Asynchronous JavaScript and XML”（异步JavaScript和XML)，是一种创建交互式网页应用的网页开发技术.它的核心就是XMLHttpRequest对象。下面简单描述一下XMLHttpRequest对象创建和使用的过程。 var xmlhttp = null; function CreateXMLHttp() { try { xmlhttp = new XMLHttpRequest(); //尝试创建 XMLHttpRequest 对象，除... 阅读全文