Question

I’m trying to make something of a Tile-Map editor in C# using picture-boxes (the simplest way i could think to throw tiles into a form)

The code that Generates the picture boxes is:

public void Generate_Tiles(int width, int height)
        {
            for (int x = 0; x < width; x++)
            {
                for (int y = 0; y < height; y++)
                {
                    System.Windows.Forms.PictureBox picturebox = new PictureBox();
                    picturebox.BackColor = SystemColors.ActiveCaption;
                    picturebox.Cursor = Cursors.Cross;
                    picturebox.Location = new System.Drawing.Point((x*32) + 4, (y*32) + 4);
                    picturebox.Name = x+y+"tile";
                    picturebox.Size = new System.Drawing.Size(32, 32);
                    picturebox.TabIndex = 0;
                    picturebox.TabStop = false;
                    picturebox.Click += new System.EventHandler(TileBox_Clicked));
                    map.Controls.Add(picturebox);
                }
            }
            MessageBox.Show("Done");
        }

That part works, as long as i use a small number of picture boxes at a time (8 by 8 seems to be the maximum that it wants to display in a decent amount of time)

I want to perform some action when the user clicks on a specified picture-box, which is why i have a onclick method, that’s where i run into problems, all the picture-boxes are called… picture-box. As far as i can tell, there’s no way for me to tell which picture-box the user clicked.

I will probably need to remake the way the dynamic form works anyway, since i cant get very many picture boxes, but I think the main problem will still be there, as long as i want it to be dynamic (which i do), not all of the tile-maps will be the same size.

Ive never done anything like this, and I’ve looked for ways to override the onclick event… which i couldn’t find, and i couldn’t find a good tile-engine that’s up to date to use (except for XNA, but that’s a little over the top for a simple tile-editor, i think)

Im likely going in the opposite direction then what i need to be doing.

Answer 1

The sender in your event handler will be the PictureBox which was clicked.

    void TileBox_Clicked(object sender, EventArgs e)
    {
        PictureBox pictureBox = sender as PictureBox;
        if(pictureBox != null)
        {
            //do stuff with your pictureBox
        }
    }