数据库 连接字符串 如果硬编在代码中,编译以后
想改的话不好改,所以最好放在配置文件中
Winform是app.config
webform是web.config
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
</configSections>
<connectionStrings>
<add name="WindowsApplication11.Properties.Settings.MICA_SaleMgnConnectionString"
connectionString="Data Source=MICA-SERVER;Initial Catalog=MICA_SaleMgn;User ID=sa"
providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
那就可以用ConfigurationManager.ConnectionString["WindowsApplication11.Properties.Settings.MICA_SaleMgnConnectionString"].ConnectionString;
Sqlconnection conn=new Sqlconnection(中间是以上的字符串);
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings
["WindowsFormsApplication3.Properties.Settings.testConnectionString"].ConnectionString);