สอบถามเรื่องปัญหาการส่งค่าข้อมูล ระหว่าง method c# ว่าส่งอย่างไร

namespace Wave_simulation
{
    
    public partial class Form1 : Form
    {
        float DataMax, DataMin;
        int MapH;
        int MapW;
        float[,] Topo;
        float[] TopoFloat;

        public Form1()
        {
            InitializeComponent();
            simpleOpenGlControl1.InitializeContexts();
        }

        private void btnReadMap_Click(object sender, EventArgs e)
        {
            string MapHight = null;
            string MapWidth = null;       
            
            int i,j;

            FileStream FileInput = new FileStream("D:\\Wave_Simulation\\Wave_simulation\\test2.txt", FileMode.Open);  /
            StreamReader sr = new StreamReader(FileInput);  
            
            MapWidth = sr.ReadLine();  
            MapW = Convert.ToInt32(MapWidth); 

            MapHight = sr.ReadLine(); 
            MapH = Convert.ToInt32(MapHight); 
            sr.Close(); 
            FileInput.Close();

            string buffer;
            buffer = File.ReadAllText("D:\\Wave_Simulation\\Wave_simulation\\test.txt");
			
            TopoFloat = new float[MapH * MapW];
            Topo = new float[MapH, MapW];
            string[] Z_S = new string[MapH*MapW];
			
            int M = MapH * MapW;
            DataMax = -9999;
            DataMin = 1F+10;

            string[] TopoStr = buffer.Split(' '); //SubString
           
            for (i = 0; i < M; i++)
            {
                TopoFloat[i] = Convert.ToSingle(TopoStr[i]);
            }

            for (i = 0; i < MapH; i++)
            {
                for (j = 0; j < MapW; j++)
                {
                    Topo[i, j] = TopoFloat[i * MapW + j];
                    Console.Write(Topo[i, j] + " ");
                }
                Console.Write("\n");
            }

            for (i = 0; i < MapH; i++)
            {
                for (j = 0; j < MapW; j++)
                {
                    if (Topo[i, j] == -9999)
                    {
                        Topo[i, j] = -3;
                    }
                    if (DataMin > Topo[i, j])
                    {
                        DataMin = Topo[i, j];
                    }
                    else if (DataMax < Topo[i, j])
                    {
                        DataMax = Topo[i, j];
                    }                   
                }
            }
           
        }


        private void simpleOpenGlControl1_Paint(object sender, PaintEventArgs e)
        {

             Console.Write(MapH + "\n");
             Console.Write(MapW + "\n");

            for (i = 0; i < MapH; i++)
            {
                for (j = 0; j < MapW; j++)
                {
                    
                    Console.Write(Topo[i, j] + " ");
                }
                Console.Write("\n");
            }
        }

        
    }