C# app.config 配置文件的读取方法

不同的应用程序有不同的读取方法 ，有可能是不同 的.NET版本语法造成的；具体原因暂时没有完全搞懂。

第一种方法：使用System.Configuration.ConfigurationSettings.AppSettings  来读取；

<?xml version="1.0" encoding="utf-8" ?>

     
        "v4.0" sku=".NETFramework,Version=v4.5" />
    
    
        "connstring" value="Data Source=.;Initial Catalog=bookshop;User ID=sa;pwd=li;Integrated Security=TRUE"/>
    

 1         public static DataTable ExecuteQuery(string sql)
 2         {
 3             string connstring = System.Configuration.ConfigurationSettings.AppSettings["connstring"].ToString();
 4             conn = new SqlConnection(connstring);
 5 
 6             SqlDataAdapter sda = new SqlDataAdapter(sql, conn);
 7             DataTable dt = new DataTable();
 8             //sda.SelectCommand = cmd;
 9             sda.Fill(dt);
10             return dt;
11         }

第二种方法 ：

 1 <?xml version="1.0"?>
 2 
 3     
 4         "applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
 5             
"SunEast.WMS.WinAPP.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
 6         
 7         "userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
 8             
"SunEast.WMS.WinAPP.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
 9         
10     
11    
12   
13     
14       "LogPath" serializeAs="String">
15         \\Log
16       
17       "IsLogTracking" serializeAs="String">
18         True
19       
20       "UserPwd" serializeAs="String">
21         123456
22       
23       "ReportPath" serializeAs="String">
24         \\Frx
25       
26       "DBString" serializeAs="String">
27         Persist Security Info =true; Password=lini;User ID = sa; Initial Catalog = MS; Data Source =127.0.0.1;Connect Timeout=10
28       
29     
30   
31   
32     
33       "IsShow" serializeAs="String">
34         true
35       
36     
37   
38 "v4.0" sku=".NETFramework,Version=v4.0"/>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace APP
{
    public class AppConst
    {
        public static string DBConnstring = Properties.Settings.Default.DBString;

        public static string ReportPath = System.IO.Directory.GetCurrentDirectory() + Properties.Settings.Default.ReportPath;

        public static string LogPath = System.IO.Directory.GetCurrentDirectory() + Properties.Settings.Default.LogPath;

        public static bool IsLogTracking = Properties.Settings.Default.IsLogTracking;
    }
}