Extending an existing component

[Mister Quest]

Hi...I'm trying to create a custom and I'm having problems adding child
components to it, even though I think I"ve followed all the documentation I've
read to create it. Here's my setup:

- I extend TitleWindow in a class called MiniView. MiniView is defined in a
class file called MiniView.as.

- I attempt to add a ControlBar as a child component by overriding
createChildren() in MiniView.as. I also add a call to super.createChildren().
function createChildren(): Void {
super.createChildren();

- I create a child component via the recommended procedure
var toolBar:ControlBar;
toolBar = ControlBar(createClassObject(ControlBar, "toolBar1", 1,
{width:"100%", backgroundColor:"#ff00ff", height:"25", marginTop:"0",
marginBottom:"0", marginLeft:"0", horizontalAlign:"right"}));

- At this point, I would expect my toolbar to be the only component visibile
when I instantiate a MiniView object. That didn't work, but I continued on. Now
I add two buttons to the toolbar
toolBar.createChild(Button, "btnFreeze", 0, {label:"Freeze",
backgroundColor:"#00ff00"});
toolBar.createChild(Button, "btnResume", 0, {label:"Resume",
backgroundColor:"#ff0000"});

- Per some documentation I came across, I make a call to invalidate(). I also
tried invalidateLayout(), but it had no effect either.
//invalidateLayout();
invalidate();

- Debug to verifiy this method was called and made it to the end
Alert.show("done creating children...");


- In my main.mxml file, I add MiniView component to my application dynamically
depending on a selection in a ComboBox.
function doSomething(event): Void {
var strTitle:String = event.target.selectedItem;
views.createChild(MiniView, undefined, {title:strTitle, id:"view1",
width:"100%", height:"290"})//, backgroundImage:strTitle + ".jpg"});
}

- While I do get the TitleWindow on the screen and the Alert box to display,
none of my sub-components are visible. Am I missing something? I did come
across a different procedure that tells how to use the compile tool to compile
a class into a .swc file, but it's my impression that's completely optional.
Since no one else posted regarding this, I'm assuming that I'm missing a vital
step when it comes to overriding a component. Would appreciate the assistance...

Thanks,

Quest
General Dynamics


Any ideas???



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class vmoc.MiniView extends mx.containers.TitleWindow {
import mx.containers.ControlBar;
import mx.controls.Alert;
import mx.controls.Button;
import mx.controls.Label;

/*
The local value of _myName is private, while the getter and setter methods
are public.
In getters and setters, you cannot use the same name of the property in the
function name.
As a result, you should use some convention, such as prefixing the member
name with an underscore character (_).
*/

private var _myName:String = "abc";

public function get myName():String {
return _myName;
}

public function set myName(name:String) {
_myName = name;
}
/*
function MiniView() {
super.TitleWindow();
// var toolBar:ControlBar = ControlBar(createChild(ControlBar, "toolBar",
{width:"100%", backgroundColor:"#ff00ff", height:"25", marginTop:"0",
marginBottom:"0", marginLeft:"0", horizontalAlign:"left"}));
}
*/
function createChildren(): Void {
super.createChildren();

var toolBar:ControlBar;
var buttonPress:Button;

toolBar = ControlBar(createClassObject(ControlBar, "toolBar1", 1,
{width:"100%", backgroundColor:"#ff00ff", height:"25", marginTop:"0",
marginBottom:"0", marginLeft:"0", horizontalAlign:"right"}));
toolBar.createChild(Button, "btnFreeze", 0, {label:"Freeze",
backgroundColor:"#00ff00"});
toolBar.createChild(Button, "btnResume", 0, {label:"Resume",
backgroundColor:"#ff0000"});
// invalidateLayout();
invalidate();
Alert.show("done creating children...");
}
}

[insguy]

Your problem here may be that the third argument to your calls to
createClassObject are both zero, they should be different values. The third
argument is the z index of the child created, if they're both zero, you
effectively replace the first child at index 0 with 2nd child.