CODEWITHSUNDEEP
flashapache-flexflex3
ICR
ICR

Reputation: 14162

Adding scrollbars to TextArea with fixed height

I have a TextArea that I want to give a fixed height to, and have scrollbars appear if the text overflows that height.

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:TextArea
        height="34"
        text="Line 1&#13;Line 2&#13;Line 3&#13;Line 4&#13;Line 5&#13;Line 6&#13;Line 7"/>
</mx:Application>

However, if I give it a height, no scrollbars appear (though I can scroll the text with the mousewheel or by selecting text). Even forcing scrollbars to always appear using verticalScrollPolicy="on" doesn't work.

Upvotes: 0

Views: 574

Answers (1)

Trish Rempel
Trish Rempel

Reputation: 563

If you look at the source for TextArea, you can see that the verticalScrollPolicy is hardcoded to be OFF if less than or equal to 40 pixels:

override public function get verticalScrollPolicy():String
{
    return height <= 40 ? ScrollPolicy.OFF : _verticalScrollPolicy;
}

You have a few options:

  • Set the TextArea height to 41 or greater

  • Create a custom control that inherits mx TextArea and override this method:

    override public function get verticalScrollPolicy():String
{
    return _verticalScrollPolicy;
}

  • Use the Spark TextArea instead and use the property heightInLines

I found the answer in the following thread: http://tech.groups.yahoo.com/group/flexcoders/message/112148

Upvotes: 1

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