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  • Flex 3 Value aware combo box error

    - by user1057094
    I am using a value aware combobox, it was working fine, but recently i started getting the below error, when I try to click on combobox, and the error is random. I am not sure of it is because of any changes i have done in the coding, or some changes in data provider etc any help is appreciated... TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::ComboBox/destroyDropdown() at mx.controls::ComboBox/styleChanged() at mx.core::UIComponent/setBorderColorForErrorString() at mx.core::UIComponent/commitProperties() at mx.controls::ComboBase/commitProperties() at mx.controls::ComboBox/commitProperties() at custom.controls::ComboBox/commitProperties()[D:\workspace\eclipse\indigo\ams\flex_src\custom\controls\ComboBox.mxml:13] at mx.core::UIComponent/validateProperties() at mx.managers::LayoutManager/validateProperties() at mx.managers::LayoutManager/doPhasedInstantiation() Debugger throws TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::ComboBox/destroyDropdown() at mx.controls::ComboBox/styleChanged() at mx.core::UIComponent/setBorderColorForErrorString() at mx.core::UIComponent/commitProperties() at mx.controls::ComboBase/commitProperties() at mx.controls::ComboBox/commitProperties() at custom.controls::ComboBox/commitProperties()[D:\workspace\eclipse\indigo\ams\flex_src\custom\controls\ComboBox.mxml:13] at mx.core::UIComponent/validateProperties() at mx.managers::LayoutManager/validateProperties() at mx.managers::LayoutManager/doPhasedInstantiation() at mx.managers::LayoutManager/validateNow() at mx.controls::ComboBox/displayDropdown() at mx.controls::ComboBox/downArrowButton_buttonDownHandler() at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent() at mx.controls::Button/http://www.adobe.com/2006/flex/mx/internal::buttonPressed() at mx.controls::Button/mouseDownHandler() at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent() at mx.controls::ComboBase/textInput_mouseEventHandler()

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  • Flex textarea control not updating properly.

    - by ielashi
    I am writing a flex application that involves modifying a textarea very frequently. I have encountered issues with the textarea sometimes not displaying my modifications. The following actionscript code illustrates my problem: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="955" minHeight="600"> <mx:TextArea x="82" y="36" width="354" height="291" id="textArea" creationComplete="initApp()"/> <mx:Script> <![CDATA[ private var testSentence:String = "The big brown fox jumps over the lazy dog."; private var testCounter:int = 0; private function initApp():void { var timer:Timer = new Timer(10); timer.addEventListener(TimerEvent.TIMER, playSentence); timer.start(); } private function playSentence(event:TimerEvent):void { textArea.editable = false; if (testCounter == testSentence.length) { testCounter = 0; textArea.text += "\n"; } else { textArea.text += testSentence.charAt(testCounter++); } textArea.editable = true; } ]]> </mx:Script> </mx:Application> When you run the above code in a flex project, it should repeatedly print, character by character, the sentence "The big brown fox jumps over the lazy dog.". But, if you are typing into the textarea at the same time, you will notice the text the timer prints is distorted. I am really curious as to why this happens. The single-threaded nature of flex and disabling user input for the textarea when I make modifications should prevent this from happening, but for some reason this doesn't seem to be working. I must note too that, when running the timer at larger intervals (around 100ms) it seems to work perfectly, so I am tempted to think it's some kind of synchronization issue in the internals of the flex framework. Any ideas on what could be causing the problem?

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  • Auto-sizing and positioning in Flex

    - by Addsy
    I am working on a flex app that uses XML templates to dynamically create DisplayObjects. These templates define different layouts that can be used for each page of content in the app (ie , 2 columns, 3 columns etc etc). The administrator can select from one of these and populate each area with their content. The templates add one of 3 types of DisplayObject - HBox, VBox or a third component - LibraryContentContainer (an mxml component that is defined as part of the app) - which is effectively a canvas element with a TextArea inside. The problem that I am getting is that I need each of these areas to automatically resize to fit the length of the content but don't seem to be able to find an effective way to do so. In the LibraryContentContainer, when the value of the TextArea is set, I am calling .validateNow() on the LibraryContentContainer. I then set the height property on both the TextArea and LibraryContentContainer to match the textHeight property of the TextArea. In the following example, this is the LibraryContentContainer, viewer is the TextArea and the value property of the TextArea is bound to this.__Value. v is the variable containing the content for the textarea this.__Value = v; this.validateNow(); this.viewer.height = this.viewer.textHeight; this.height = this.viewer.height; This works to a degree in that the TextArea grows or shrinks depending on the length of content, but it's still not great - sometimes there are still vertical scrollbars even tho the size of the TextArea has grown. Anyone got any ideas? Thanks Adam

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  • How do I get Flex Builder to use the selected framework?

    - by Michael Prescott
    I'm attempting to create a Flex Project that will cause the Flash Player to cache the Flex framework. Flex Builder comes with Flex SDK 3.2.0.3958 and setting the Framework Linkage to use Runtime shared Library (RSL) under Project Properties - Flex Build Path will separate the framework from my main application and I see that my project's bin-debug directory contains framework_3.2.0.3958.swf and *.swz for distribution. Flex SDK 3.4 fixes a few bugs, so I configured it as another available sdk and set it as the default SDK. When I compile, I expect the bin-debug directory to contain framework_3.4.0.9271.swf and *.swz; however, Flex Builder is still writing framework_3.2.0.3958.swf and *.swz. How do I configure Flex Builder to package the correct framework files for Flash Player caching?

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  • How do I stop a datagrid's first-row itemRenderer from instantiating/adding/initializing/etc twice?

    - by Michael Prescott
    In a Flex DataGrid's first row, the itemRenderer will initialize twice. Tracing the results reveals that the flex framework is possibly creating two instances of the first row's itemRenderer. In a more complex application, where the itemRenderer contains a data-bound ColorPicker, we're seeing an infinite loop occur because of this problem. Only the first row's itemRenderer is initialized twice. Is there a way to override flex's behavior and stop this from occurring? The following code demonstrates the problem: Main Application: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="on_initialize(event);"> <mx:Script> <![CDATA[ /** * This experiment shows how the first row's itemrenderer is instantiated/added/initialized twice. * We've never even noticed this before we found that a data-bound ColorPicker enters a infinite * loop when it is within an itemRenderer. */ import mx.collections.ArrayCollection; import mx.events.FlexEvent; private var dg_array:Array; private var dg_arrayCollection:ArrayCollection; private function on_initialize(event:FlexEvent):void { dg_array = new Array(); dg_arrayCollection = new ArrayCollection(); dg_arrayCollection.addItem("item 1"); dg_arrayCollection.addItem("item 2"); dg.dataProvider = dg_arrayCollection; } ]]> </mx:Script> <mx:DataGrid id="dg" width="100%" height="100%" rowCount="5"> <mx:columns> <mx:DataGridColumn headerText="Name" itemRenderer="SimpleItemRenderer"/> </mx:columns> </mx:DataGrid> </mx:Application> SimpleItemRenderer: <?xml version="1.0" encoding="utf-8"?> <mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300" initialize="//on_initialize(event);"> <mx:Script> <![CDATA[ import mx.events.FlexEvent; [Bindable] override public function set data(value:Object):void { _data = value; } override public function get data():Object { return _data; } private var _data:Object; private function on_initialize_textInput(event:FlexEvent):void { trace("initialize:event.target="+event.target+", " + _data); // runs twice, for the first item only } private function on_creationComplete_textInput(event:FlexEvent):void { trace("creationComplete:event.target="+event.target+", " + _data); // runs twice, for the first item only } ]]> </mx:Script> <mx:TextInput text="{data}" id="textInput" initialize="on_initialize_textInput(event);" creationComplete="on_creationComplete_textInput(event);"/> </mx:Canvas> Abbreviated Output: initialize:event.target=ItemRenderers0.dg...SimpleItemRenderer12.textInput, null initialize:event.target=ItemRenderers0.dg...SimpleItemRenderer24.textInput, null creationComplete:event.target=ItemRenderers0.dg...SimpleItemRenderer24.textInput, item 1 initialize:event.target=ItemRenderers0.dg...SimpleItemRenderer29.textInput, null creationComplete:event.target=ItemRenderers0.dg...SimpleItemRenderer29.textInput, item 2 creationComplete:event.target=ItemRenderers0.dg...SimpleItemRenderer12.textInput, item 1

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  • Flex Error: Repeater is not executing.

    - by creativepragmatic
    Hello Everyone, I have been trying to get a Repeater to work since yesterday. It works the first time it has been loaded with data but the second time, it is loaded, the following error results with the debugger higlighting a row with the statement isHandlingEvent = false; in the watcherFired method of the Binding class. This happens whether the Repeater is updated by setting its dataProvider or if a bound variable is changed. Thank you in advance for any help, Orville Error: Repeater is not executing. at mx.core::Repeater/get currentItem()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Repeater.as:305] at ()[F:\Projects\Flex\PrintPortal\src\ch\printportal\site\view\Shop.mxml:362] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.binding::Binding/wrapFunctionCall()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Binding.as:287] at ()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\RepeatableBinding.as:139] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.binding::Binding/wrapFunctionCall()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Binding.as:287] at mx.binding::RepeatableBinding/recursivelyProcessIDArray()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\RepeatableBinding.as:148] at mx.binding::RepeatableBinding/execute()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\RepeatableBinding.as:105] at mx.binding::BindingManager$/executeBindings()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\BindingManager.as:138] at mx.core::Container/executeBindings()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:3252] at mx.core::Container/createComponentFromDescriptor()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:3726] at mx.core::Container/createComponentsFromDescriptors()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:3536] at mx.core::Container/createChildren()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:2632] at mx.core::UIComponent/initialize()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\UIComponent.as:5370] at mx.core::Container/initialize()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:2569] at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::childAdded()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\UIComponent.as:5267] at mx.core::Container/http://www.adobe.com/2006/flex/mx/internal::childAdded()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:3348] at mx.core::Container/addChildAt()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:2260] at mx.core::Container/addChild()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:2183] at mx.core::Container/createComponentFromDescriptor()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:3724] at mx.core::Repeater/createComponentFromDescriptor()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Repeater.as:734] at mx.core::Repeater/createComponentsFromDescriptors()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Repeater.as:786] at mx.core::Repeater/recreate()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Repeater.as:1075] at mx.core::Repeater/execute()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Repeater.as:1095] at mx.core::Repeater/set dataProvider()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Repeater.as:402] at ()[F:\Projects\Flex\PrintPortal\src\ch\printportal\site\view\Shop.mxml:358] at Function/http://adobe.com/AS3/2006/builtin::call() at mx.binding::Binding/innerExecute()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Binding.as:375] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.binding::Binding/wrapFunctionCall()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Binding.as:287] at mx.binding::Binding/execute()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Binding.as:230] at mx.binding::Binding/watcherFired()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Binding.as:396] at mx.binding::Watcher/notifyListeners()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\Watcher.as:299] at mx.binding::PropertyWatcher/eventHandler()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\binding\PropertyWatcher.as:327] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at ch.printportal.site.model::ModelLocator/dispatchEvent()[F:\Projects\Flex\PrintPortal\src\ch\printportal\site\model\ModelLocator.as:73] at ch.printportal.site.model::ModelLocator/set arrCategoryView2Products()[F:\Projects\Flex\PrintPortal\src\ch\printportal\site\model\ModelLocator.as:71] at ch.printportal.site.command::GetProductsCommand/result()[F:\Projects\Flex\PrintPortal\src\ch\printportal\site\command\GetProductsCommand.as:47] at mx.rpc::AsyncToken/http://www.adobe.com/2006/flex/mx/internal::applyResult()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\rpc\AsyncToken.as:199] at mx.rpc.events::ResultEvent/http://www.adobe.com/2006/flex/mx/internal::callTokenResponders()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\rpc\events\ResultEvent.as:172] at mx.rpc::AbstractOperation/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\rpc\AbstractOperation.as:199] at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:263] at mx.rpc::Responder/result()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\rpc\Responder.as:46] at mx.rpc::AsyncRequest/acknowledge()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:74] at NetConnectionMessageResponder/resultHandler()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\messaging\channels\NetConnectionChannel.as:514] at mx.messaging::MessageResponder/result()[C:\autobuild\galaga\frameworks\projects\rpc\src\mx\messaging\MessageResponder.as:199]

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  • Flex - Custom Component - Percentage Width/Height

    - by Hamish
    I am trying to create a Custom Flex Component using the Flex Component framework: http://www.adobe.com/livedocs/flex/3/html/help.html?content=ascomponents_advanced_3.html. All good components allow you to define their dimensions using percentage values using: MXML: TextInput width="100%" or Actionscript at runtime: textinp.percentWidth = 100; My question is how do you implement percentage width/height in the measure() method of your custom component? More specifically, these percentages are converted to pixels values at some stage, how is this done?

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  • Get content of a single cell from a DataGrid in Flex 3

    - by Captain Phoenix
    I want to select information in a single cell from my DataGrid in Flex 3. Specifically, I'm displaying three phone numbers per line and the user needs to be able to select one of those numbers, from any row, but not the whole row. While similar to this, I am displaying the DataGrid to the user. The answer for that question was to manipulate the dataProvider, how can I know what cell I've selected in order to do that?

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  • Flex 3 ComboBox skin, limiting text width

    - by Rhys Causey
    I've created a ComboBox skin by extending mx.skins.ProgrammaticSkin. It's working fine, except I can't figure out how to limit the width of the text. Is there a way to control this within the skin? See the attached image for an example of the text going too far. I would like it to stop before the separator line to the left of the down arrow.

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  • Issues with Flex 4 SDK under Flex Builder 3

    - by user252160
    I have managed to adjust Flex Builder 3 to work with the Flex 4 SDK thanks to this article. However, some strange things are happening. I changed all the namespaces as suggested, but I cannot get anything from the fx: namespace using the Flex Builder code completion, as well as the spark List class.

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  • HTTPService/ResultEvent with Flex 3.2 versus Flex >= 3.5

    - by Julian
    Hey everybody, through a design decission or what-so-ever Adobe changed the content of the ResultEvent fired by a HTTPService Object. Take a look at following example: var httpService:HTTPService = myHTTPServices.getResults(); httpService.addEventListener(ResultEvent.RESULT,resultHandler); httpService.send(); /** * Handels the login process */ function resultHandler(event:ResultEvent):void { // get http service var httpService = (event.target as HTTPService); // do something } It works like a charm with Flex 3.2. But when I try to compile it with Flex 3.5 or Flex 4.0 event.target as HTTPService is null. I figured out that event.target is now an instance of HTTPOperation. That is interesting because I can't find HTTPOperation in the langref. However, I think what Flash Builder's debugger means is mx.rpc.http.Operation. The debugger also shows that event.target has a private attribute httpService which is the instance I expected to get with event.target. But it's private, so event.target.httpService doesn't work. If I only want to remove the EventListener I can cast event.target as EventDispatcher. But I need to use methods from HTTPService. So: How can I get the HTTPService instance from the ResultEvent? Any help would be appreciated. Thanks! J.

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  • How to mask image with another image in ActionScript 3.0

    - by Nicola
    Hi Gurus, my issue is this, my users import an image with FileReference and I need to mask it and then send it to server. My problem is this: I'm be able do keep the filereference event and transfer the image data into my canvas. I'm be able to send to server the result of masking. But I'm NOT be able to mask the image that my users have load in my canvas. There are any help/example?? Thanks Nicola

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  • Automatically call httpservice.send

    - by Matt Robinson
    I have an application that displays the data from 3 xml files (auto generated from SQL table) using httpservices to get them. The first xml file is small and contains around 30 items, the second and thrid contain around 200-300 items each. The first dataset loads quickly and is invoked on creationComplete. The second and third are called from click events and take quite a few seconds to load. A user of the application will take at least 2-3 minutes reading the data from the first dataset so is there a way I can have the httpservice.send for the second and third xml files called automatically, straight after the first file has finished loading to be able to show the first dataset immediateley and get rid of the waiting times between dataset views. An answer doesnt need to be specific, just a point in the right direction would be great. All answers greatly appreciated Matt

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  • Where to register mediator in puremvc ?

    - by Silent Warrior
    Currently I am working on flex using puremvc framework. Actually my question is related to where to register mediator in puremvc framework. One of my colleague is registering mediator in views(components) creationComplete method only (inside view). While my preference is send some notification from creationComplete method which could be handle by some command and command will register mediator. So which one is better approach in terms of best practice ?

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  • Integrate flex 3.5 projects in flash builder 4 beta 2

    - by Cyrill Zadra
    Hi I'm currently using Flex Builder 3 and Flex SDK 3.5 for my projects. But I'd like to try out the new Flash Builder 4. So I downloaded and installed the new software, configured all the additional software like subversion, server adapter .. and finally a importet my 2 projects. 1) Main Project (includes a swc generated by the Library Project) (flex sdk 3.5) 2) Library Project (flex sdk 3.4) After the import and project cleanup the project is running perfectly. But as soon as I replace the existing LibraryProject.swc through a new one (compiled with flash builder 4 beta 2 sdk 3.4) VerifyError: Error #1014: class mx.containers::Canvas not found. VerifyError: Error #1014: class mx.containers::HBox not found. VerifyError: Error #1014: class IWatcherSetupUtil not found. ... and several others not found errors. Does anyone has the same error. How can I get my project running again? thanks & regards cyrill

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  • How to unpack, update and repack Adobe air file?

    - by Abhishek Jain
    I need to unpack air file, update it and repack it. Can anybody please help me in this regard? In java, for jar file we can use winrar utlity for this kind. Please suggest how can we do for air.Is there any utility for adobe air. I tried with winzip/winrar. I changed its extension to .zip file and opened it in winzip and winrar. When I tried to update it, it got corrupted. -Abhishek

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  • Is there a Maven plugin to generate AS3 classes from Java for BlazeDS ?

    - by Maskime
    Hi, I'm looking for a maven plugin that would generate ActionScript3 classes from Java classes in order to access them by object remoting. I've seen FlexMojo but it uses the GraniteDS generator wich create some problems when it comes to map Enum objects (wich can be fix through a workaround that is describe here : http://dev.c-ware.de/confluence/display/PUBLIC/Flexmojos+generated+AS3+model+with+Enum+support+using+BlazeDS?focusedCommentId=7634946&#comment-7634946 if you've googled your way here this might be useful) when working with BlazeDS. Everything that i found so far are people who explain how to generate VO classes on flex side using Flash Builder 4, but this solution can not be used in an industrial developpement environnement. Thanks in advance for any leads on this matter.

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  • Always importing too many classes... I think!

    - by Bill
    I have a basic problem with knowing which classes to import for a given application, renderer, AS package, mxml component, etc. There seems to be hundreds of classes (both mx and flash) and I'm never sure which one(s) to import... so I just keep adding import statements until the errors go away. Is there a reference somewhere that I don't know about? Or does this just come with experience? Also... does importing a load of classes actually make the file size larger or does Flex only import the classes used nregardless of what I specify? If it only uses what is needed, why wouldn't everyone just do: import mx.*;

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  • Advanced Data Grid sorting

    - by Ravi K Chowdary
    Hi, I have using AdvancedDataGrid and using sorting fucntionality. By default the grid sorting is decending. I want to make a sorting is ascending. I write a sorting function and click on the header on the advanced datagrid, the first and second time it is not working ,it is working on thrid time. It is not remembering the first sorting call. It is remember the call after 3 clicks. Please any one of you can answer it asap. Thanks, ravi

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