列表索引轉換爲數據表

Question

我已經在索引0處存儲數據表，並且在列表中的索引1處存在int，現在我想將列表索引0轉換爲數據表。如何將其轉換爲數據表？

//Class Function 
     public List<object> Login(string A, string B) 
     { 

      DataTable dt = new DataTable(); 
      xConn.Open(); 
      SqlCommand xComm = new SqlCommand("Ulogin"); 
      xComm.CommandType = CommandType.StoredProcedure; 
      xComm.Connection = xConn; 
      xComm.Parameters.AddWithValue("@Email", A); 
      xComm.Parameters.AddWithValue("@Pass", B); 
      int usercount = (Int32)xComm.ExecuteScalar(); 
      xComm.ExecuteNonQuery(); 
      new SqlDataAdapter(xComm).Fill(dt); 
      List<object> L = new List<object>(); 
      L.Add(dt); 
      L.Add(usercount); 
      return L; 
     } 


     //Web Form 
     protected void Sub_Click(object sender, EventArgs e) 
     { 
     string Email = TextBox3.Text; 
     string Pass = TextBox4.Text; 
     List<object> L = d.Login(Email,Pass); 
     int I = Convert.ToInt32(L[1]); 
     if (I > 0) 
     { 
      //How does it convert here? 
     } 
     else 
     { 
      Response.Write("Incorrect Email Or Password"); 
     } 

    }