Difference between canvas and panel?

[Priti Gupta]

Hi all,

i did not find anywhere the difference between canvas and panel in flex. please explain it.....

[sampath 123]

Hi ,
  In panel  you can use the layout for aligning the components where as in canvas we cant use the layouts we can manually align the components by using the x and y properties and  you can easily identify the panel with with the titlebar whereas a canvas has  no titlebar  and has no border .

On Tue, Jun 12, 2012 at 1:35 AM, Priti Gupta <mailtopr...@gmail.com> wrote:

Hi all,

i did not find anywhere the difference between canvas and panel in flex. please explain it.....

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[Divya Agarwal]

A panel has fixed layout you cannot placed its child components to any
position in panel but in canvas you can place its child component
anywhere with in the canvas it have auto layout default. Also canvas
is not a visible container by default but panel is.


Regards
Divya

[sampath 123]

 You are saying that panel has a fixed layout ok but inside panel  we may use the skinnablecontainers inside the containers we define the layout   so we can overcome the fixed laout like this

[abhishekchess1]

hey r u talking abt flex 3 canvas and panel  ?

[gourav kumar]

Hi ,
If you still have issue , do contact me via mail.

Thanks

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[Priti Gupta]

yes...generally if some interviewer ask..then what should the reply?

[Ali Hasan]

hi,   Panel and Canvas are definitely not the same. Panel can layout its children for you based on the layout property. Its also got a title bar. 

Canvas will not layout its children. Please find more details below. 

http://livedocs.adobe.com/flex/3/langref/mx/containers/Panel.html 
http://livedocs.adobe.com/flex/3/langref/mx/containers/Canvas.html 

Hope this helps 

[gourav kumar]

Hii Priti,

Ok let see is this this infor is enough for you or not?

1.Canvas extends Container implements IConstraintLayout & Panel extends Container
2.A Panel container consists of a title bar, a caption, a border,
   and a  content area for its children.
   Typically, you use Panel containers to wrap top-level application modules.
   For example, you could include a Any Title in a Panel container.
 
But

   A Canvas layout container defines a rectangular region
   in which you place child containers and controls.
   It is the only container that lets you explicitly specify the location
   of its children within the container by using the <code>x</code> and
   <code>y</code> properties of each child. 


If you want to  give perfect ans to interviewer read  property's of both of Component they both have some diff properys explain this
if you still have any issue feel free to mail me.

One more thing  have my personal blog for interview if wana some more q? i will mail u.


Bye tc  

[rahul iyer]

Hi .

Basically , Panel arranges your components based on layout you specify.

 It has an caption , title bar , border to it. Hence visible by itself

Canvas on other hand , uses absolute layout       .So have to specify x nad y co-ordinates. If you dont it will use auto layout.

Canvas is not visible by itself

Thanks
Rahul