Cut an Image into 9 pieces C#

Question

Possible Duplicate:
Image splitting into 9 pieces

Though I googled enough but unfortunately failed to find a help. This Code Project Tutorial also failed to serve me what I actually need.

I have an Image and 9 PictureBox(s) in a WinForm.

Image img = Image.FromFile("media\\a.png"); // a.png has 312X312 width and height
//          some code help, to get
//          img1, img2, img3, img4, img5, img6, img7, img8, img9
//          having equal width and height
//          then...
pictureBox1.Image = img1;
pictureBox2.Image = img2;
pictureBox3.Image = img3;
pictureBox4.Image = img4;
pictureBox5.Image = img5;
pictureBox6.Image = img6;
pictureBox7.Image = img7;
pictureBox8.Image = img8;
pictureBox9.Image = img9;

Here is an example Image for you:

This is a part of my Picture Puzzle class project. I have done with photoshop images, now want to dynamically cut.

Thanks in advance.

Answer 1

First off, instead of using img1, img2... use an array with a size of 9. Then it's much easier to do this using a couple of loops like this:

var imgarray = new Image[9];
var img = Image.FromFile("media\\a.png");
for( int i = 0; i < 3; i++){
  for( int j = 0; j < 3; j++){
    var index = i*3+j;
    imgarray[index] = new Bitmap(104,104);
    var graphics = Graphics.FromImage(imgarray[index]);
    graphics.DrawImage( img, new Rectangle(0,0,104,104), new Rectangle(i*104, j*104,104,104), GraphicsUnit.Pixel);
    graphics.Dispose();
  }
}

Then you can fill your boxes like this:

pictureBox1.Image = imgarray[0];
pictureBox2.Image = imgarray[1];
...