Non-visual Coordinate Grid c# -

i want create nonvisual coordinate grid in c# console application such can create grid set size "axb" (for example 9x9 or 6x9 etc.). then, assign number each coordinate (x,y) , access later using specific coordinates. every example of grid have seen in c# works explicitly either make visual grid wpf or somehow using characters in console application. want grid saved data numbers saved each (x,y) coordinate. possible implement using arrays/lists? or suggestions appreciated. actually, have idea of code setting coordinates:

int x = 0; int y = 0; int[,] grid = new int[,] { { x }, { y } }; 

class grid {     public grid(int width, int length) {         coordinates = new list<coordinate>();         (int = 1; < width + 1; i++) {             (int k = 1; k < length + 1; k++) {                 coordinates.add(new coordinate(k,i));             }         }     }     list<coordinate> coordinates;     int width { get; set; }     int length { get; set; }     public int accesscoordinate(int x,int y) {         return coordinates.where(coord => coord.x == x && coord.y == y)                           .firstordefault().storedvalue;     }     public void assignvalue(int x, int y,int value) {         coordinates.where(coord => coord.x == x && coord.y == y)                    .firstordefault().storedvalue = value;     } } class coordinate {     public coordinate(int _x, int _y) {         x = _x;         y = _y;     }     public int x { get; set; }     public int y { get; set; }     public int storedvalue { get; set; } } 

and here simple example of how use in console application in case

        grid newgrid = new grid(5, 6);         newgrid.assignvalue(2, 3, 500);         var retrievedvalue = newgrid.accesscoordinate(2, 3);         console.writeline(retrievedvalue);         console.readline(); 

and note, might not efficient/best way of doing it, should simplify extent easy modify , understand quickly