The HRule control is a MX component. It has no Spark component. The HRule is used to create a single horizontal line.

HRule control in Flex4:

The HRule control is a MX component. It has no Spark component. The HRule is used to create a single horizontal line. It is used for dividing a space. You can use the strokeWidth, strokeColor, shadowColor properties for set a style. If strokeWidth is 1 then you can use only strokeColor properties for set a color.
If strokeWidth is more than 1 then You can use strokeColor and shadowColor properties for set a color.
The tag of HRule control is <mx:HRule>.

Example:

<?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" minWidth="955" minHeight="600"> <s:Panel title="HRule Control Example" width="177"> <s:VGroup x="10" y="11" width="155" height="73"> <mx:Label text="Above portion of HRule"/> <mx:HRule strokeWidth="10" strokeColor="0x00ff00" shadowColor="0x0000ff" width="131"/> <mx:Label text="Below portion of HRule"/> </s:VGroup> </s:Panel> </s:Application>

In this example you can see how we can use a HRule control in Flex4.

Output:

Running Application:

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