Read about filter function it will be quite helpful. On Fri, Jan 22, 2010 at 4:39 AM, Aviral Sharma <[email protected]>wrote:
> Now, you can provide a dataprovider for combobox (using an > arraycollection is better than hardcoding the data). > Use filter function to remove duplicates as described in the link: > > http://blog.flexexamples.com/2007/08/05/removing-duplicate-items-from-an-array-using-the-arrayfilter-method/ > > Here is the code (visit the website link above to see a working > example) > > <!-- Start Code --> > > <?xml version="1.0" encoding="utf-8"?> > <!-- > http://blog.flexexamples.com/2007/08/05/removing-duplicate-items-from-an-array-using-the-arrayfilter-method/ > --> > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; > layout="vertical" > verticalAlign="middle" > backgroundColor="white" > creationComplete="init()"> > > <mx:Script> > <![CDATA[ > private var keys:Object = {}; > > /** > * Called by the Application container's creationComplete > * event handler. This method creates a new Array object > * which will be used as a data provider as well as a > * filtered view of that array which does not contain > * duplicated items. > */ > private function init():void { > /* Create a dummy data source with some semi-random > data. */ > var arr:Array = []; > arr.push({data:1, label:"one"}); > arr.push({data:1, label:"one"}); > arr.push({data:1, label:"one"}); > arr.push({data:1, label:"one"}); > arr.push({data:2, label:"two"}); > arr.push({data:2, label:"two"}); > arr.push({data:2, label:"two"}); > arr.push({data:1, label:"one"}); > arr.push({data:3, label:"three"}); > arr.push({data:3, label:"three"}); > > /* Filter the original array and call the > removeDuplicates() function on each item > in the array. */ > var filteredArr:Array = arr.filter(removedDuplicates); > > arrColl.source = arr; > dedupedArrColl.source = filteredArr; > } > > /** > * This method is used to filter an array so that no > * duplicate items are created. It works by first > * checking to see if a keys object already contains > * a key equal to the current value of the item.data > * value. If the key already exists, the current item > * will not be readded to the data provider. If the key > * does not already exist, add the key to the keys > * object and add this item to the data provider. > */ > private function removedDuplicates(item:Object, idx:uint, > arr:Array):Boolean { > if (keys.hasOwnProperty(item.data)) { > /* If the keys Object already has this property, > return false and discard this item. */ > return false; > } else { > /* Else the keys Object does *NOT* already have > this key, so add this item to the new data > provider. */ > keys[item.data] = item; > return true; > } > } > ]]> > </mx:Script> > > <mx:ArrayCollection id="arrColl" /> > <mx:ArrayCollection id="dedupedArrColl" /> > > <mx:HBox> > <mx:VBox> > <mx:Label text="Original ({arrColl.length} items):" /> > <mx:List dataProvider="{arrColl}" /> > </mx:VBox> > <mx:VBox> > <mx:Label text="Filtered ({dedupedArrColl.length} > items):" /> > <mx:List dataProvider="{dedupedArrColl}" /> > </mx:VBox> > </mx:HBox> > > </mx:Application> > > <!-- End Code --> > > On Dec 30 2009, 10:46 am, Kiran Kumar Vasireddy <[email protected]> > wrote: > > Thanks Safi for your response . If I do this I get duplicate elements in > > Mycombox , I want to avoid them. > > > > Regards > > Kiran > > > > > > > > On Sun, Dec 27, 2009 at 10:50 PM, saanaa safi <[email protected]> > wrote: > > > hi kiran, > > > i hope below example will help u. try this,i think this is what u r > > > expecting. > > > > > <?xml version="1.0" encoding="utf-8"?> > > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; > > > layout="absolute"> > > > <mx:ArrayCollection id="myColl"> > > > > > <mx:Object Company="GM" count="85" Model ="Saab" > ModelCount="20" > > > Year="2009" YearCount="10" /> > > > <mx:Object Company="GM" count="85" Model ="Saab" > ModelCount="20" > > > Year="2008" YearCount="5" /> > > > <mx:Object Company="GM" count="85" Model ="Saab" > ModelCount="20" > > > Year="2007" YearCount="5" /> > > > <mx:Object Company="GM" count="85" Model ="Chevi" > > > ModelCount="20" Year="2009" YearCount="20" /> > > > > > <mx:Object Company="FORD" count="43" Model ="Focus" > > > ModelCount="20" Year="2009" YearCount="5" /> > > > <mx:Object Company="FORD" count="43" Model ="Focus" > > > ModelCount="20" Year="2008" YearCount="3" /> > > > <mx:Object Company="FORD" count="43" Model ="Focs" > > > ModelCount="20" Year="2007" YearCount="2" /> > > > > > </mx:ArrayCollection> > > > <mx:ComboBox prompt="Company" dataProvider="{myColl}" > > > labelField="Company" x="44" y="21" width="100"/> > > > <mx:ComboBox prompt="Model" dataProvider="{myColl}" > labelField="Model" > > > x="153" y="21" width="100"/> > > > <mx:ComboBox prompt="Year" dataProvider="{myColl}" > labelField="Year" > > > x="275" y="21" width="100"/> > > > > > </mx:Application> > > > > > On Sat, Dec 26, 2009 at 4:00 PM, Kiran Kumar Vasireddy < > > > [email protected]> wrote: > > > > >> Dear All, > > > > >> I am getting the data in following format . Is there any way to load > it > > >> into comboxbox avoiding duplicates? First combobox I want to just load > > >> Company Name removing duplicates.Second combox box based on the > section I > > >> have to load Models and In the Thrid combox box based on company and > Model > > >> I have to load Years.Or if not Arraycollection , I can also get the > data in > > >> XMLCollection . Could some body please give me best solution? > > > > >> <ArrayCollection> > > > > >> <mx:Object Company="GM" count="85" Model ='Saab" > ModelCount=20 > > >> Year="2009" YearCount="10" /> > > >> <mx:Object Company="GM" count="85" Model ='Saab" > ModelCount=20 > > >> Year="2008" YearCount="5" /> > > >> <mx:Object Company="GM" count="85" Model ='Saab" > ModelCount=20 > > >> Year="2007" YearCount="5" /> > > >> <mx:Object Company="GM" count="85" Model ='Chevi" > > >> ModelCount=20 Year="2009" YearCount="20" /> > > > > >> <mx:Object Company="FORD" count="43" Model ='Focus" > > >> ModelCount=10 Year="2009" YearCount="5" /> > > >> <mx:Object Company="FORD" count="43" Model ='Focus" > > >> ModelCount=10 Year="2008" YearCount="3" /> > > >> <mx:Object Company="FORD" count="43" Model ='Focs" > > >> ModelCount=10 Year="2007" YearCount="2" /> > > > > >> </ArrayCollection> > > > > >> -- > > >> You received this message because you are subscribed to the Google > Groups > > >> "Flex India Community" group. > > >> To post to this group, send email to [email protected]. > > >> To unsubscribe from this group, send email to > > >> [email protected]<flex_india%[email protected]> > <flex_india%2bunsubscr...@googlegrou ps.com> > > >> . > > >> For more options, visit this group at > > >>http://groups.google.com/group/flex_india?hl=en. > > > > > -- > > > Warm Regards > > > Saanaa.... > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Flex India Community" group. > > > To post to this group, send email to [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]<flex_india%[email protected]> > <flex_india%2bunsubscr...@googlegrou ps.com> > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/flex_india?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Flex India Community" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<flex_india%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/flex_india?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Flex India Community" group. 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