Retrieve all pictureboxes?

Question

Hi guys new to the forum :) I have a c# program that consists of only one form and am looking for a way of retrieving an array or list of all the picture boxes in that form. I am not really new to c# but have only increased my knowledge so far as to accommodate assignment work requirements i have not 'learnt' the language per se. I blundered in and attempted to use this.componants only to find that visual studio (which is what i am using) informed me there was no object reference in that statement by which i assume it means the form but i'm obviously not sure ;) Ideally it would be some form of 'foreach' however i would appreciate guidance onto any method :D Anyone have any ideas how i would go about doing this? Or is it even possible? Thankyou.

Sam Hobbs · Answer

What specific line gets that error? You said you are using this.componants but I don't see that in your code.

Frogleg · Answer

PictureBox [] pic = new PictureBox [9]; put setupPics(); in form load event public void setupPics() { pic[0] = pictureBox1; pic[1] = pictureBox2; pic[2] = pictureBox3; pic[3] = pictureBox4; pic[4] = pictureBox5; pic[5] = pictureBox6; pic[6] = pictureBox7; pic[7] = pictureBox8; pic[8]= pictureBox9; } private void button2_Click( object sender EventArgs e) { foreach ( PictureBox p in pic) { p.Image = null ; } }

Sam M · Answer

Hi Crish thanks for the reply :) However unless I am being stupid that code appears to be in VB ;) Any chance you have a c# example? Thanks :D

Crish · Answer

Hi you can check this below code to solve your issue. http://www.xtremevbtalk.com/showthread.php?t=143177

Sam M · Answer

Hi Subhendu Ah of course sorry i normally post on HTML forums so wasn't sure of what would be useful regarding c# :) Its just a basic tic-tac-toe game all that is in the form is 9 picture boxes the r1l = row1left and r1c = row1center etc :) they represent the 9 squares (made by the picture boxes) that make up the tic-tac-toe. Basically on the click of the btnReset i would like it to retrieve all the picture boxes and put them into a list or array. Its not hugely important to the functionality but i'm mainly making this program to improve my knowledge of deeper c# concepts :D Cheers :) 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 AI { public partial class Form1 : Form { bool isCross = false; public Form1() { InitializeComponent(); } private void r1r_Click(object sender EventArgs e) { changeImage(r1r); } private void changeImage(PictureBox p) { if (p.BackgroundImage != null) { return; } if (isCross) { p.BackgroundImage = new Bitmap(crossbg.jpg); isCross = false; } else { p.BackgroundImage = new Bitmap(circle.gif); isCross = true; } } private void r1c_Click(object sender EventArgs e) { changeImage(r1c); } private void r1l_Click(object sender EventArgs e) { changeImage(r1l); } private void r2l_Click(object sender EventArgs e) { changeImage(r2l); } private void r2c_Click(object sender EventArgs e) { changeImage(r2c); } private void r2r_Click(object sender EventArgs e) { changeImage(r2r); } private void r3l_Click(object sender EventArgs e) { changeImage(r3l); } private void r3c_Click(object sender EventArgs e) { changeImage(r3c); } private void r3r_Click(object sender EventArgs e) { changeImage(r3r); } private void btnReset_Click(object sender EventArgs e) { } } }

Subhendu De · Answer

If possible could you post the code. It would help me to give you the actual codebase that you are looking for. Thanks.....