override in inherited control to disable property

[wey97]

I'm inheriting a control from TextBox and I want to disable the MaxLength property and fix it at 5. MaxLength is a virtual property of Control so I should override it.

public FixedTextBox() {
	base.MaxLength = 5;
}

[Browsable(false)]
[DefaultValue(5)]
public override int MaxLength {
	get {
		return 5;
	}
}

Now the MaxLength property should be read-only since I only have a 'get' modifier, right? If I assign to the MaxLength property of an instance of FixedTextBox there are no compile errors.

fixedTextBox1.MaxLength = 0;

Why does this not generate a compile error? Is it because the override modifier only overrides the 'get' modifier of Control.MaxLength but leaves the 'set' modifier alone?

Using the 'new' modifier fixes this issue and I understand why, I just don't understand why 'override' does not work.