ASP.NET中 *** 作SQL数据库(连接字符串的配置及获取)

在WebConfig中配置数据库连接字符串 代码如下

复制代码 代码如下: <connectionStrings><add name=ConnectionString connectionString="user id=用户名password=密码initial catalog=数据库名称data source=服务器名称"/></connectionStrings>

然后在Webform_ aspx cs里面获取连接字符串 要添加如下引用

复制代码 代码如下: using System Configurationusing System Datausing System Data SqlClient 复制代码 代码如下: SqlConnection conprotected void Page_Load(object sender EventArgs e) { ConnectDB()} private void ConnectDB() { string ConString = ConfigurationManager ConnectionStrings["ConnectionString"] ConnectionStringcon = new SqlConnection(ConString)con Open()SqlCommand = new SqlCommand()SqlDataReader sdrstring sqlstr = "select * from item"CommandText = sqlstrConnection = consdr = ExecuteReader()while (sdr Read()) { Response Write(sdr["字段名"] ToString()+"</br>")} sdr Close()sdr = null} lishixinzhi/Article/program/net/201311/14106

SQL Server的连接方式

以本地服务器(LocalHost)，数据库(Northwind)为例，可以有以下一些连接方式

SqlConnection conn=new SqlConnection( "Server=LocalHostIntegrated Security=SSPIDatabase=Northwind")

SqlConnection conn = new SqlConnection("Data Source=LocalHostIntegrated Security=SSPIInitial Catalog=Northwind")

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