Flex - BorderContainer


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Introduction

The BorderContainer class defines a set of CSS styles that control the appearance of the border and background fill of the container.

Class Declaration

Following is the declaration for spark.components.BorderContainer class −

public class BorderContainer 
   extends SkinnableContainer

Public Properties

S.No Property & Description
1

backgroundFill : IFill

Defines the background of the BorderContainer.

2

borderStroke : IStroke

Defines the stroke of the BorderContainer container.

Public Methods

S.No Method & Description
1

BorderContainer()

Constructor.

Methods Inherited

This class inherits methods from the following classes −

  • spark.components.SkinnableContainer
  • spark.components.supportClasses.SkinnableContainerBase
  • spark.components.supportClasses.SkinnableComponent
  • mx.core.UIComponent
  • mx.core.FlexSprite
  • flash.display.Sprite
  • flash.display.DisplayObjectContainer
  • flash.display.InteractiveObject
  • flash.display.DisplayObject
  • flash.events.EventDispatcher
  • Object

Flex BorderContainer Example

Let us follow the following steps to check usage of BorderContainer in a Flex application by creating a test application −

Step Description
1 Create a project with a name HelloWorld under a package com.tutorialspoint.client as explained in the Flex - Create Application chapter.
2 Modify HelloWorld.mxml as explained below. Keep rest of the files unchanged.
3 Compile and run the application to make sure business logic is working as per the requirements.

Following is the content of the modified mxml file src/com.tutorialspoint/HelloWorld.mxml.

<?xml version = "1.0" encoding = "utf-8"?>
<s:Application xmlns:fx = "http://ns.adobe.com/mxml/2009"
   xmlns:s = "library://ns.adobe.com/flex/spark"
   xmlns:mx = "library://ns.adobe.com/flex/mx
   width = "100%" height = "100%" minWidth = "500" minHeight = "500">  
   
   <fx:Style source = "/com/tutorialspoint/client/Style.css" />
   <fx:Script>
      <![CDATA[
         private function applyBorderContainerProperties():void {
            borderContainer.setStyle("borderWeight",weightStepper.value);
            borderContainer.setStyle("borderColor",colorPicker.selectedColor);
            borderContainer.setStyle("dropShadowVisible",chkShadow.selected);
         }		
      ]]>
   </fx:Script>
   
   <s:BorderContainer width = "630" height = "480" id = "mainContainer" 
      styleName = "container">
      <s:VGroup width = "100%" height = "100%" gap = "50" 
         horizontalAlign = "center" verticalAlign = "middle">
         <s:Label id = "lblHeader" text = "Layout Panels Demonstration" 
            fontSize = "40" color = "0x777777" styleName = "heading" />
         
         <s:Panel id = "borderContainerPanel" 
            title = "Using BorderContainer" width = "500" 
            height = "300" includeInLayout = "true" visible = "true">
            <s:layout>
               <s:VerticalLayout  gap = "10" verticalAlign = "middle" 
                  horizontalAlign = "center" />
            </s:layout>				
               
            <s:HGroup>
               <s:VGroup>
                  <s:HGroup verticalAlign = "middle" >
                     <s:Label text = "Border Weight:" width = "100" />
                     <s:NumericStepper id = "weightStepper" value = "1" />
                  </s:HGroup>
                  
                  <s:HGroup verticalAlign = "middle">
                     <s:Label text = "Border Color:" width = "100" />
                     <mx:ColorPicker id = "colorPicker" color = "0x323232" />
                  </s:HGroup>
                  
                  <s:HGroup verticalAlign = "middle">
                     <s:Label text = "Drop Shadow:" width = "100" />
                     <s:CheckBox id = "chkShadow" selected = "false" />
                  </s:HGroup>    
                  
                  <s:Button label = "Apply Properties" 
                     click = "applyBorderContainerProperties()" />
               </s:VGroup>
               
               <s:BorderContainer id = "borderContainer" width = "200"
                  backgroundColor = "0xff99ff">
               </s:BorderContainer>    
            </s:HGroup>
         </s:Panel>				
      </s:VGroup>	 
   </s:BorderContainer>	
</s:Application>

Once you are ready with all the changes done, let us compile and run the application in normal mode as we did in Flex - Create Application chapter. If everything is fine with your application, it will produce the following result: [ Try it online ]

Flex BorderContainer
flex_layout_panels.htm

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