C# Drag and drop controls within a container

Question

I've been using the drag and drop controls within a container example but could do with some help. If I want to drag and drop more than one button, say multiple buttons created at runtime and held in an arraylist how would I go about this?

Answer 1

Still having trouble with the heavy cpu when dragging. How can I put this control on a seperate thread?

Answer 2

Im guessing it involves threads, but being new to c# im not sure where to start.

Answer 3

Jumps to 99% cpu utilisation. How do I go about stopping this heavy cpu usage?

Answer 4

I'm glad it worked for you , As to your other question try opening up the "Windows task manager" and have a look at what the performance is on the processor while your dragging the pictureBox . FMartin

Answer 5

I've come across one more problem. When I drag the picturebox's(with a background image) across a panel the image isnt displayed whilst dragging, when dragging with a button it works fine.

Answer 6

Excellent, that works a charm.

Answer 7

This is how I would do it if you want to move controls around in a container : private int xDown; private int yDown; private bool moving; private void Form1_Load(object sender, System.EventArgs e) { foreach(Control c in this.Controls) { c.MouseDown+=new MouseEventHandler(c_MouseDown); c.MouseMove+=new MouseEventHandler(c_MouseMove); c.MouseUp+=new MouseEventHandler(c_MouseUp); } } private void c_MouseDown(object sender, MouseEventArgs e) { yDown=0; if(e.Button.ToString()=="Left") { moving=true; xDown=e.X; yDown=e.Y; } } private void c_MouseMove(object sender, MouseEventArgs e) { Point w=new Point(); if(moving) { Control d=(Control)sender; w.X=d.Location.X+(e.X-xDown); w.Y=d.Location.Y+(e.Y-yDown); d.Location=w; } } private void c_MouseUp(object sender, MouseEventArgs e) { moving=false; }