SqlConnection conn=new SqlConnection();
            conn.ConnectionString="server=.\\SQLEXPRESS;uid=sa;pwd=wang782005;database=first";
            conn.Open();
            SqlDataAdapter sda = new SqlDataAdapter("select * form test",conn);
            DataSet ds = new DataSet();
            sda.Fill(ds);  提示这里有语法错误
            ddl1.DataSource = ds;
            ddl1.DataTextField = "neirong";
            ddl1.DataSourceID = "id";
            ddl1.DataBind();
            conn.Close();

谢谢两位版主回复
数据库我确认打开了
直接用控件可以
用语言就提示有错误。