Centering an Alert box.

Question

I have a flex web application in which the flex components are embedded inside portal jsps. When the user clicks on a datagrid (clicks on item renderer inside the datagrid), the Alert box has to notify the user. However the alert box centers itself wrt the flex application and it goes out of the user's view. Because the user can view only a portion of the large datagrid at a particular time (scrollbars for the page are present, not for the datagrid).
I have tried assigning absolute and relative values, but nothing seems to work.
Any suggestions woudl be greatly appreaciated.
Thanks in advance.

Answer 1

I've run into a similar situation and here is what I did to resolve it without using the move method...
Say you have an application that has a layout container which contains a custom component in it somewhere
Application
       |--->HGroup
                    |---> CustomComponent (the one that calls the alert box)
if your alert box code looks like this:
Alert.show(
"Your Alert Message Here!","Your Alert Title Here...",0x4,this,null,null);
Your alert box will appear centered over the custom component which called it.
Add an id to the container you want the alert box centered on:
Application
       |--->HGroup id="myContainer"
                    |---> CustomComponent (the one that calls the alert box)
Change your alert box code to look like this:
Alert.show(
"Your Alert Message Here!","Your Alert Title Here...",0x4,this.parentApplication.myContainer,null,null);
This will center the alert box over the HGroup layout container that has its id property set to myContainer.
The example above sets the parent property of of the Alert class show method:
public static function show(text:String = "", title:String = "", flags:uint = 0x4, parent:Sprite = null, closeHandler:Function = null, iconClass:Class = null, defaultButtonFlag:uint = 0x4):Alert
So if I'm understanding your issue correctly... regardless of the size of your viewport you'll maybe want a dynamic method to determine the id porperty of the layout container currently being displayed within the viewport, and then center your alert box over that container via the method above.
I hope this helps.