Binding Property "Size" Works But Not "Width" -- Please Explain

[Tom]

Can someone please explain the non-working aspect of binding to Width?
See code below.

Thanks !!

-- Tom
===================================================

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;

public class FormParent : Form
{
[STAThread]
public static void Main()
{
Application.EnableVisualStyles();
Application.Run(new FormParent());
}
FormParent()
{
Text = "The Parent Form";

Form FormChild = new Form();
FormChild.Text = "The Child Form";
FormChild.Show();

// The following works!!
FormChild.DataBindings.Add("Size", this, "Size");

// The following does NOT!
//FormChild.DataBindings.Add("Width", this, "Width");
}
}

 

[Marc Gravell]

Simple; bindings depend on change-notification for the "observer"
behavior. The simplest form of this is a {property name}Changed event.
There *is* a SizeChanged event, but there *isn't* a WidthChanged
event. The binding will look for a suitable event and attempt to
subscribe if possible (usually via the PropertyDescriptor). However,
it can't do this for Width as it can't find a suitable notification
mechanism.

Marc

 

[Tom]

Thanks Marc --

That hits like a lightnin bolt!!

I'm just now exploring bindings and I tripped on the first obstacle!!

I appreciate your help.

Happy Holidays.

-- Tom

 

[Marc Gravell]

No problem,

Marc