I have an MDI application in which I want the user to drag the child forms to put them in order. I will have to write some mouse handling code for that I know. However when you click on the child forms, before you even capture the mouse , they change their order! I want them to stay still and move only when the code tells them to.
Try it! Just put this code into a default form1 - I'm using C# Express 2008. Then click on a child form and watch it move to the bottom - slippery little devil.

using System;
using System.Text;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
for (int ii = 1; ii < 5; ii++)
{
Form cForm = new Form();
cForm.MdiParent=this;
cForm.Dock = DockStyle.Top;
cForm.Size = new Size(120, 40);
cForm.Text = "Child " + ii.ToString();
cForm.MouseDown += new MouseEventHandler(cForm_MouseDown);
cForm.Show();
}
}

void cForm_MouseDown(object sender, MouseEventArgs e)
{
MessageBox.Show("Mouse Down");
}
}
}

I want the child forms to stay still and the mouse click to simply trigger the Event handler.

Any help greatly appreciated,
Andrew Parsons

Many thanks indeed for your kind solution to this. It gives me a very promising direction to pursue and I'm pretty sure I can now get were I want to go.
My aim is for the user to arrange ( and size ) the child forms by clicking and dragging - very much the way it works in Sony Vegas. Any pointers on best practice for achieving this would be handy - I will continue to code it anyway. Thanks again,
Kind Regards,
Andrew Parsons