linq = new DataClasses1DataContext(sql);
            textBox1.Text = Convert.ToString(dataGridView1[0, e.RowIndex].Value).Trim();
            var result = from info in linq.Table_1

                         where info.ID == textBox1.Text //这一句为什么编译不过
                         select new
                         {
                             ID = info.ID,
                             data = info.Data,
                             line = info.Line
                         };

初学C#请各位大神赐教，谢谢了！