vs2005连接sql2005
SqlConnection   sqlcon   =new   SqlConnection
( "DataSource=.\\sqlexpress;Initial   Catalog=db;Integrated   Security=SSPI ");
SqlDataAdapter   sqlda   =   new   SqlDataAdapter( "select   *   from   tb ",sqlcon   );
SqlCommand   sqlcmd   =   new   SqlCommand( "select   *   from   tb ",sqlcon   );
DataSet   ds   =   new   DataSet();
sqlda.Fill(ds, "pp ");
this.dataGridView1.DataSource=ds.Tables[0];

每次运行后都是出现这个错误!!!请大家帮帮忙!!!我刚接触vs2005!!!谢谢了!!!
Cannot   open   database   "db "   requested   by   the   login.   The   login   failed.
Login   failed   for   user   'DEV-830966B997A\wb '.

------解决方案--------------------
SQL 2005还没有用过，看看这里，有SQL2005的各种连接方式
http://www.connectionstrings.com/?carrier=sqlserver2005
------解决方案--------------------
我就是那么直接联的阿，和2000一样，我觉得也就是05把企业管理器和查询分析器和并在一起了，估计你的语句有问题，按照上面说的string connectionString = "server=机器\\SQLEXPRESS;database=数据库名称;User ID=sa;password=密码 ";这么写不行吗？？