知识大全如何在ASP.NET中了解LINQ语句性能

Posted 2022-07-17 语句

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　　如果是在桌面程序中只需要

　　_context Log = Console Out;

　　即可在控制台输出SQL语句可是在ASP NET中又该怎么办呢?

　　这时我想起了StringWriter 用它就可以代替Console Out帮我们接收输出的日志保存在一个StringBuilder里

　　于是构造一个辅助类

　　using System;using System Collections Generic;using System Linq;using System Web;using System IO;using System Text;namespace Clowwindy Modelspublic static class LogHelperpublic static StringBuilder Log = new StringBuilder();public static TextWriter In = new StringWriter(Log);public static string GetAllLog()In Flush();return Log ToString();public static void Clean()Log = new StringBuilder();In = new StringWriter(Log);

　　再添加一个页面log aspx 用来显示日志

　　<%@ Page Language= C# AutoEventWireup= true

　　CodeBehind= Log aspx cs Inherits= Clowwindy Log %><!DOCTYPE PUBLIC //W C//DTD XHTML Transitional//EN

　　 transitional dtd >< xmlns= ><head runat= server ><title>SQL Log</title></head><body><form id= form runat= server ><asp:Button ID= btn_Clean runat= server Text= 清空 onclick= btn_Clean_Click /><div><asp:Literal ID= Literal runat= server ></asp:Literal></div></form></body></>

　　using System;using System Collections Generic;using System Linq;using System Web;using System Web UI;using System Web UI WebControls;using Clowwindy Models;namespace Clowwindypublic partial class Log : System Web UI Pageprotected void Page_Load(object sender EventArgs e)if (Request UserHostAddress != )Response End();return;Literal Text = LogHelper GetAllLog() Replace( \\n \\n<br/> );protected void btn_Clean_Click(object sender EventArgs e)LogHelper Clean();Literal Text = null;

　　最后在所有new DataContext的地方

　　加上_context Log = LogHelper In:

　　public Repository()_context = new TDataContext();_context Log = LogHelper In;

cha138/Article/program/net/201311/13540

知识大全 如何在ASP.NET中了解LINQ语句性能

知识大全如何在ASP.NET中了解LINQ语句性能