关于初始化字符串的格式不符合规范。

Question

显然是连接字符串没写对.自己查
http://connectionstrings.com/

Answer 1

字符串不对
string ConnectionString = "data source=localhost;initial catalog=DatabaseName;integrated security=SSPI;user ID=sa;password=123456";

Answer 2

Db.ConnectionString 是从哪里读取的，查看原链接字符串是否正确！ 字符串连接如楼上的。

Answer 3

public SqlDataReader GetList(string Sql) 
{ 
string ConnectionString = "data source=localhost;initial catalog=DatabaseName;integrated security=SSPI;user ID=sa;password=123456";
SqlConnection myConnection = new SqlConnection(ConnectionString); 
                SqlCommand myCommand = new SqlCommand(Sql, myConnection); myConnection.Open(); 
SqlDataReader result = myCommand.ExecuteReader(CommandBehavior.CloseConnection); 
return result; 
} 

Answer 4

 public class Database
    {
        protected string strconnection;
        protected SqlConnection conn;
        public Database()
        {
            strconnection = ConfigurationManager.ConnectionStrings["zilong"].ConnectionString;
        }
        protected void Open() //保护方法，打开连接
        {            if (conn == null)
            {
                conn = new SqlConnection(strconnection);
            }
            if (conn.State.Equals(ConnectionState.Closed))
            {
                conn.Open();
            }
        }
  public void Close()
        {
            if (conn.State.ToString() == "Open")
            {
                conn.Close();
            }
        }
public SqlDataReader GetList(string Sql) 
{ Open(); 
SqlDataReader result = myCommand.ExecuteReader(CommandBehavior.CloseConnection); 
return result; 
}