我们如何在c＃中使用存储在字符串变量中的表名

Question

string tablename = DropDownList1.SelectedValue.ToString()
string id = TextBox1.Text;
adp = new SqlDataAdapter("select * from '" + tablename + "' where id='" + id + "'", obj.connect());
DataSet ds = new DataSet();
adp.Fill(ds);

Answer 1

string.Format（＆＃34; select * from {0} where id = {1}＆＃34;，tablename，id）