One class of variables, two sets of variables

[DanWebb314]

My C# program has 3 files of program code:
Form.h
chessPlayer.cs
ColorLevelForm.cs
This line of code:

ChessPlayer chessGame = new ChessPlayer();

in Form.h allows me to access public variables and arrays in Chessplayer().
That same line of code in ColorLevelForm.cs also allows me to access variables and arrays in Chessplayer(). The problem is that two separate variable sets are created by the code in each file when I run the program. If I store a number in ‘PlyMax’ (a public variable in chessPlayer.cs) with the ColorLevelForm.cs code, That same variable remains unchanged in Form.h! Let me know if you need more detailed info the help me solve this problem.

Thank you
Dan

[michaeldebruin]

If I understand it correctly then this might help, otherwise please give me some more details. I might be able to help.
So is it correct that the file names standing above your code are 3 totally different files and that you want to put 1 variable from Chessplayer.cs and one from ColorLevelForm.cs in the Form.h? If this is the case then try to make a settings file and store the 2 variables in there and store the values in the settings file.
If I am totally wrong, again give me some more details. Also posting your code would help.

[DanWebb314]

Thanks for your reply. I tried your idea of making a settings file. I put the variable ‘PlyMax’ in it. It did not help. I don’t know if I did it right. But I don’t think a settings file is what I need to solve my problem. Here is some code from the three files;

Form1.h :

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
 
namespace Sargon_C_sharp_2011
{
    public partial class Form1 : Form
    {
        ChessPlayer chessGame = new ChessPlayer();  //links data and routines in ChessPlayer.cpp to this form
 
        public Form1()
        {
            InitializeComponent();
 
            chessGame.InitBoard(); //Initialize Board[] array...InitBoard() is found in Chessplayer.cpp
                // ... more code
        }
 
 
 
        private void MseClickSquare(object sender, MouseEventArgs e)
        {
          // code here gets players move and runs the chess engine in chessPlayer()
         }
 
        private void PaintChessBoard(object sender, PaintEventArgs e)
        {   //Paint the chessboard and add chess pieces
 
            // more code
 
                            bc = chessGame.Board[bix++];// gets value from Board[] in chessPlayer.cpp
 

chessPlayer.cpp

Code from ChessPlayer.cs:
 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace Sargon_C_sharp_2011
{
   public class ChessPlayer
    {
        //this has all the data and routines use by the chess engine
 
       public int[] Board = new int[120];  //Internal chess board
       public int PlyMax = 1;  //level of play
 
       //...   Much more code
 

ColorLevelForm2.cpp

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
 
namespace Sargon_C_sharp_2011
{
    public partial class ColorLevelForm2 : Form
    {
 
        ChessPlayer chessGame = new ChessPlayer();  //this makes different set of variables from Form1
 
 
        public ColorLevelForm2()
        {
            InitializeComponent();
        }
 
 
        private void LevelRBclicked(object sender, MouseEventArgs e)
        {
           // other code
            if (this.rBLevel2.Checked)  // radio button in the form show when selected with the Menu
            {
                this.chessGame.PlyMax = 2; //Does not change this variable in Form1
                return;
            }
 

These two comment lines in ColorLevelForm2.cpp:
//this makes different set of variables from Form1
//Does not change this variable in Form1
Sum up the problem.

Any ideas as to what code I need to add?

[michaeldebruin]

Oke what are you trying to make? And what is the code which sum up the problem supposed to do?

[DanWebb314]

Thank you again for responding. Here is the answer to that question as best I can.

When the user goes to the menu there is a choice called 'Color/Level'. This brings up a little window with radio buttons. When the user clicks on a radio button, the code in 'Colorform2.cpp' is activated.
Here three variables can be set. On of which is 'PlyMax' This determines the level of play. In 'chessPlayer.cpp' where the heart of to chess program is, there is a line of code:

public int PlyMax = 1;  //level of play

Form1.cpp can change this variable:

chessGame.PlyMax = i;  // 'i' is an integer between 1 and 8

But when 'Colorform2.cpp' tries to do the same thing:

chessGame.PlyMax = 2 // = 2 or any integer between 1 and 8

a different memory location gets changed.

This line of code in 'Colorform2.cpp'

        ChessPlayer chessGame = new ChessPlayer();  //this .....

sets a side a different(new) set of memory locations for chessPlayer.cpp which is useless.

I need a line or two of code somewhere to allow 'Colorform2.cpp' to get to same set of memory locations (for important variables) as the other two files of code.

Got any ideas?
Dan

[DanWebb314]

I though you mike like to know that I found a solution to my problem.
This form/website:
http://forum.codecall.net/c-programm...hild-form.html
gave me the solution. In my program Form1 is the Parent and Colorlevelform2 is the child.

[arie]

There is easier solution.

in Form1 (main form) do:

Form2 frm = new Form2();
frm.ShowDialog(this); 
// or frm.Show(this); if you don't want it to be modal
 

This code makes Form1 instance the Owner of Form2 instance.
Then in Form2 you just do:

this.Owner.chessGame.PlyMax = 2;
 

[DanWebb314]

Bye gosh your are right. Your Idea piggybacks on top of the first Idea. I needed to add public to:

 public ChessPlayer chessGame = new ChessPlayer();

in Form1
and in ColorLeverForm2:

this.cHandle.chessGame.PlyMax = 2;

line of code will work.

But

By doing it this way:
In ColorLevelForm2.cs I have:

 if (this.rBLevel3.Checked)
            {
                cHandle.LevelPub = 3;
                cHandle.LinkLevel();
                return;
            }
 

and in Form1.cs
I have:

 public void LinkLevel()
        {
            string Leveltextstr = "Level: ";
            chessGame.PlyMax = LevelPub;
            LevelLabel.Text = Leveltextstr + (char)('0' + LevelPub);     
        }
 

This allows me to execute a few lines of code that are much easier to execute in Form1.cs

PS in some places I have used .cpp when I should have used .cs

Anyway, Thank you for your help
Dan Webb