TextFlowUtil's export method is not setting whiteSpaceCollapse to "collapse"

Question

I'm trying to convert some 'regular/normal' text with  embedded images to TextFlow format. During the conversion process, I want the  final TextFlow formatted text to have its whiteSpaceCollapse property as  'collapse'. However, when I user TextFlowUtil's export method,  whiteSpaceCollapse property is set to 'preserve'. What am I doing wrong  here?
Here is the simple program with trace statement that  shows that the converted text has  whiteSpaceCollapse="preserve" even when the TextFlow object's whiteSpaceCollapse is set to 'collapse': I'm using Flex 4.1 (build 16076).
<?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="600" minHeight="600"
    creationComplete="application1_creationCompleteHandler(event)"
    >
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <s:RichText
        width="500"
        textFlow="{textFlow}"
        />
    <fx:Script>
        <![CDATA[
            import flashx.textLayout.conversion.TextConverter;
            import flashx.textLayout.elements.Configuration;
            import flashx.textLayout.elements.TextFlow;
            import flashx.textLayout.formats.TextLayoutFormat;
            import flashx.textLayout.formats.WhiteSpaceCollapse;
            import mx.events.FlexEvent;
            import spark.utils.TextFlowUtil;
            [Bindable]
            private var textFlow:TextFlow;
            protected function application1_creationCompleteHandler(event:FlexEvent):void
                var inputString:String =
                    "How come this <img height='95' width='275' source='http://www.google.com/intl/en_com/images/srpr/logo2w.png'/> doesn't work?";
                var textFlowInitialFormat:TextLayoutFormat = new TextLayoutFormat();
                textFlowInitialFormat.whiteSpaceCollapse =     flashx.textLayout.formats.WhiteSpaceCollapse.COLLAPSE;
                var config:Configuration = TextFlow.defaultConfiguration;
                config.textFlowInitialFormat = textFlowInitialFormat;
                TextFlow.defaultConfiguration = config;
                textFlow = TextFlowUtil.importFromString(inputString, WhiteSpaceCollapse.COLLAPSE);
                textFlow.whiteSpaceCollapse = flashx.textLayout.formats.WhiteSpaceCollapse.COLLAPSE;
                var outputString:String = TextFlowUtil.export(textFlow).toXMLString();
                trace(outputString);
                textFlow =
                    TextConverter.importToFlow(
                        outputString,
                        TextConverter.TEXT_LAYOUT_FORMAT
        ]]>
    </fx:Script>
</s:Application> 

Answer 1

Hi,
According to your description, you want to remain the filtered data after sorting.
You need to save each FilterExpression to a string collection for sort and filter methods.
I did a test with code in the link below and it works properly:
http://sharethefrustration.blogspot.com/2010/02/spgridview-webpart-with-multiple-filter.html
Feel free to reply if there are still any questions.
Thanks
Patrick Liang
Forum Support
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