SqlConnection con = new SqlConnection("server=.;uid=sa;pwd=;database=Northwind");
SqlDataAdapter da = new SqlDataAdapter("select * from region", con);
DataSet ds = new DataSet();
da.Fill(ds);
SqlDataAdapter da = new SqlDataAdapter("select * from region", con);
DataSet ds = new DataSet();
da.Fill(ds);
SqlDataAdapter da = new SqlDataAdapter("select * from region", con);
DataSet ds = new DataSet();
da.Fill(ds);
SqlCommand cmd = new SqlCommand(sqlString);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);connString ---连接字符串
sqlString---SQL语句
上面分号打错了
上面分号打错了