Question

c# asp.net 连接数据库 conn.ConnectionString 怎么写？我用的是直接在c#下面建立的sql server database

Answer 1

数据库链接

这样应该就万无一失了！

Answer 2

连接数据库的代码

string st = "Data Source=.;Initial Catalog=SuperMarket;Integrated Security=true";
private SqlConnection con;
public SqlConnection Con//连接数据库
{
get
{
if (con == null)
{
con = new SqlConnection(st);
}
return con;
}

Answer 3

string str= "Data Source=.;Initial Catalog=database;Integrated Security=true";
SqlConnection con=new SqlConnection(str);
就行了啊

Answer 4

SqlConnection conn = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\database1.mdf;Integrated Security=True;User Instance=True")