Thread: C# beginner windows form app problem

Intro.

Hi, I am new to programming. In school we now learn C#. We got an assignment that says make the game Seabattle. Ofcourse i am not going to ask here what the code is for such program. That would be silly and i would learn nothing from that.. However i am stuck with some parts. Maybe you guys could point out some mistakes i make or help me over something.

In advance my appologies for the bad English, I do my best.

Problem:

Using the windows form i am trying to make a playfield. This playfield needs to grow or shrink depending on the level the player choses. I let the player choose the level or (niveau in my code) in a menu toolstrip.

the problem is the folowing: when i select a larger level ex. low=> medium it works, my playfield grows. But when i go from high to lower my playfield does not shrink. I have been staring and trying but i cant seem to find the solution. Can anyone take a look and give me some hints on how to solve this problem?

Thx in advance.

the code :

Code:

{    public partial class Form1 : Form
    {
        private string level="Low";
        private Label[,] labelArr;
        private int nrRows;
        private int nrColoms;
        private int Guesses=0;
        //constructor
        public Form1()
        {
            InitializeComponent();
            createPlayfield();
        }


        //properties
        //methods
        private void determineSizePlayfield()
        {
            if (level == "Low")
            {
                nrRows = 5;
                nrColoms = 7;
            }
            if (level == "Medium")
            {
                nrRows = 7;
                nrColoms = 9;
            }
            if (level == "High")
            {
                nrRows = 10;
                nrColoms = 9;
            }
        }
        private void createPlayfield()
        {
            
            determineSizePlayfield();
            
            labelArr = new Label[nrRows, nrColoms];
            int xpositie = 1;
            int ypositie = 1;


            for (int r = 0; r < nrRows; r++)
            {
                for (int k = 0; k < nrColoms; k++)
                {
                    labelArr[r, k] = new Label();
                    labelArr[r, k].Left = xpositie;
                    labelArr[r, k].Top = ypositie;
                    labelArr[r, k].Width = 30;
                    labelArr[r, k].Height = 30;
                    labelArr[r, k].Tag = (char)('A' + r) + " " + k; 
                    labelArr[r, k].BackColor = Color.SkyBlue;
                    labelArr[r, k].BorderStyle = BorderStyle.FixedSingle;
                    labelArr[r, k].MouseClick += labelArr_Click;
                    panel_Speelveld.Controls.Add(labelArr[r, k]);
                    xpositie += labelArr[r, k].Width;
                }
                xpositie = 1;
                ypositie += labelArr[r, nrColoms - 1].Height;


            }
        }


        //click events
        private void labelArr_Click(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                MessageBox.Show("LeftmouseButton");
                Guesses++;
                textBox_Guesses.Text = Guesses.ToString();
            }
            if (e.Button == MouseButtons.Right)
            {
                MessageBox.Show("RightMouseButton");
            }




        }


        private void exitToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Close();
        }


        private void rulesOfTheGameToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Rules of the game");
        }


        private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MessageBox.Show("About");
        }


        private void newGameToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Guesses = 0;
            MessageBox.Show("New game");
        }


        private void lowToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (lowToolStripMenuItem.Checked == false)
            {
                lowToolStripMenuItem.Checked = true;
                mediumToolStripMenuItem.Checked = false;
                highToolStripMenuItem.Checked = false;
            }
            level = "Low";


            createPlayfield();
            
        }


        private void mediumToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (mediumToolStripMenuItem.Checked == false)
            {
                lowToolStripMenuItem.Checked = false;
                mediumToolStripMenuItem.Checked = true;
                highToolStripMenuItem.Checked = false;
            }
            level = "Medium";
            
            createPlayfield();
            
        }


        private void highToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (highToolStripMenuItem.Checked == false)
            {
                lowToolStripMenuItem.Checked = false;
                mediumToolStripMenuItem.Checked = false;
                highToolStripMenuItem.Checked = true;
            }
            level = "High";
            createPlayfield();
            
        }
    }
}

What i believe that might be a solution is update the Panel or labelArr somehow? but how could i do that?

that indead solves the problem. thx alot.