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我有一个应用程序，用户在标题窗口弹出窗口中将所需信息放入文本输入中，并将输入的数据发送到数据网格中。这是我第一次调用弹出窗口并输入信息时，它工作正常。问题出在这里：下一次我调用组件弹出并弹出弹出窗口上的任何位置（包括textInputs）时，数组中的第一项会自动输入到textInput中，用户应该自己输入数据（顺便说一下，这个textInput也是一个自动完成的组件）。除非用户自己输入数据，否则我想要的只是输入textinput。我一直在调整它几个小时，并陷入困境。任何建议将不胜感激。组件在需要之前从数组中获取项目
下面的代码： （这是主页）
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
creationComplete="init()" >
<mx:Script>
<![CDATA[
import mx.managers.PopUpManager;
import mx.collections.ArrayCollection;
import mx.core.IFlexDisplayObject;
import com.AddTrade;
[Bindable]public var dgItems:ArrayCollection = new ArrayCollection();
private var addTradeScreen:AddTrade;
private function init():void
{
addTradeScreen = new AddTrade();
addTradeScreen.addEventListener("SaveTrade", saveTrade);
}
private function addTrade():void
{
PopUpManager.addPopUp(addTradeScreen, this, true);
PopUpManager.centerPopUp(addTradeScreen);
addTradeScreen.country.text = "";
addTradeScreen.Notes.text ="";
addTradeScreen.myDate.text="";
}
private function saveTrade(e:Event):void
{
var trade:Trade= new Trade();
trade.country = addTradeScreen.country.text;
trade.myDate = addTradeScreen.myDate.text;
trade.direction = addTradeScreen.combo.text;
dgItems.addItem(trade);
PopUpManager.removePopUp(addTradeScreen);
}
public function deleteItem(event:MouseEvent):void
{
dgItems.removeItemAt(myDG.selectedIndex);
dgItems.refresh();
}
public function myColStyleFunc(data:Object,col:AdvancedDataGridColumn):Object
{
if(data["myProfit"]<0)
{
return {color:0xFF0000};
}
else
{
return null;
}
}
]]>
</mx:Script>
<mx:AdvancedDataGrid x="10" y="10" dataProvider="{dgItems}" id="myDG" variableRowHeight="true" wordWrap="true" tabIndex="12" editable="false" height="429" width="942" doubleClickEnabled="true">
<mx:columns>
<mx:AdvancedDataGridColumn width="120" headerText="Country:" dataField="country"/>
<mx:AdvancedDataGridColumn width="120" headerText="Date:" dataField="myDate"/>
<mx:AdvancedDataGridColumn width="160" headerText="Notes:" dataField="tradeNotes"/>
<mx:AdvancedDataGridColumn width="129" headerText="Delete" >
<mx:itemRenderer>
<mx:Component id="deleteButton" >
<mx:Image click="outerDocument.deleteItem(event)" buttonMode="true" source="@Embed(source='Assets/trash2.png')" scaleContent="false" verticalAlign="middle" horizontalAlign="center" width="30" height="30"/>
</mx:Component>
</mx:itemRenderer>
</mx:AdvancedDataGridColumn>
</mx:columns>
</mx:AdvancedDataGrid>
<mx:Button x="733" y="447" click="addTrade();" label="Add New Trade" height="36" width="219" fontSize="14"/>
这里的弹出组件代码：
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute" width="422" height="294"
title="Log Ur Trade" showCloseButton="true" close="close(event)"
xmlns:comp="com.adobe.flex.extras.controls.*"
initialize="data1 = new ArrayCollection(countries);
data2 = new ArrayCollection(countries);">
<mx:Metadata>
[Event(name="SaveTrade")]
</mx:Metadata>
<mx:Script>
<![CDATA[
import mx.managers.PopUpManager;
import mx.events.CloseEvent;
import mx.events.FlexEvent;
import mx.collections.ArrayCollection;
[Bindable] private var data1: ArrayCollection;
[Bindable] private var data2: ArrayCollection;
[Bindable]
public var countries: Array = [
{id: 0, name:"Monaco"},
{id: 1, name:"Macau"},
{id: 2, name:"Hong Kong"},
{id: 3, name:"Singapore"},
{id: 4, name:"Gibraltar"},
{id: 5, name:"Vatican City"},
{id: 6, name:"Malta"},
{id: 7, name:"Bermuda"},
{id: 8, name:"Maldives"},
{id: 9, name:"Bahrain"},
{id: 10, name:"Bangladesh"},
{id: 11, name:"Channel Islands"},
{id: 12, name:"Nauru"},
{id: 13, name:"Taiwan"},
{id: 14, name:"Barbados"},
{id: 15, name:"Palestinian territories"},
{id: 16, name:"Mauritius"},
{id: 17, name:"Aruba"},
{id: 18, name:"South Korea"},
{id: 19, name:"San Marino"},
{id: 20, name:"Puerto Rico"},
{id: 21, name:"Tuvalu"},
{id: 22, name:"Netherlands"},
{id: 23, name:"Martinique"},
{id: 24, name:"Comoros"},
{id: 25, name:"Lebanon"},
{id: 26, name:"Rwanda"},
{id: 27, name:"Marshall Islands"},
{id: 28, name:"Belgium"},
{id: 29, name:"Japan"},
{id: 30, name:"India"},
{id: 31, name:"El Salvador"},
{id: 32, name:"American Samoa"},
{id: 33, name:"U.S. Virgin Islands"},
{id: 34, name:"Sri Lanka"},
{id: 35, name:"R union"},
{id: 36, name:"Guam"},
{id: 37, name:"Haiti"},
{id: 38, name:"Saint Vincent and the Grenadines"},
{id: 39, name:"Israel"},
{id: 40, name:"Saint Lucia"},
{id: 41, name:"Philippines"},
{id: 42, name:"Burundi"},
{id: 43, name:"Guadeloupe"},
{id: 44, name:"Grenada"},
{id: 45, name:"Trinidad and Tobago"},
{id: 46, name:"Vietnam"},
{id: 47, name:"United Kingdom"},
{id: 48, name:"Jamaica"},
{id: 49, name:"Germany"},
{id: 50, name:"Netherlands Antilles"},
{id: 51, name:"Liechtenstein"},
{id: 52, name:"Pakistan"},
{id: 53, name:"Italy"},
{id: 54, name:"North Korea"},
{id: 55, name:"Nepal"},
{id: 56, name:"Antigua and Barbuda"},
{id: 57, name:"Dominican Republic"},
{id: 58, name:"Luxembourg"},
{id: 59, name:"Seychelles"},
{id: 60, name:"Switzerland"},
{id: 61, name:"Northern Mariana Islands"},
{id: 62, name:"Cayman Islands"},
{id: 63, name:"Saint Kitts and Nevis"},
{id: 64, name:"Sao Tome and Principe"},
{id: 65, name:"Federated States of Micronesia"},
{id: 66, name:"Kuwait"},
{id: 67, name:"British Virgin Islands"},
{id: 68, name:"Andorra"},
{id: 69, name:"Nigeria"},
{id: 70, name:"People's Republic of China"},
{id: 71, name:"Tonga"},
{id: 72, name:"Kiribati"},
{id: 73, name:"The Gambia"},
{id: 74, name:"Anguilla"},
{id: 75, name:"Isle of Man"},
{id: 76, name:"Czech Republic"},
{id: 77, name:"Denmark"},
{id: 78, name:"Cape Verde"},
{id: 79, name:"Thailand"},
{id: 80, name:"Moldova"},
{id: 81, name:"Uganda"},
{id: 82, name:"Poland"},
{id: 83, name:"Indonesia"},
{id: 84, name:"Guatemala"},
{id: 85, name:"Tokelau"},
{id: 86, name:"Portugal"},
{id: 87, name:"Slovakia"},
{id: 88, name:"France (Metropolitan)"},
{id: 89, name:"Albania"},
{id: 90, name:"Malawi"},
{id: 91, name:"Hungary"},
{id: 92, name:"Togo"},
{id: 93, name:"Serbia"},
{id: 94, name:"Dominica"},
{id: 95, name:"Syria"},
{id: 96, name:"Cuba"},
{id: 97, name:"Armenia"},
{id: 98, name:"Austria"},
{id: 99, name:"Azerbaijan"},
{id: 100, name:"Slovenia"},
{id: 101, name:"Turkey"},
{id: 102, name:"Ghana"},
{id: 103, name:"Romania"},
{id: 104, name:"Cyprus"},
{id: 105, name:"Spain"},
{id: 106, name:"Costa Rica"},
{id: 107, name:"Greece"},
{id: 108, name:"Croatia"},
{id: 109, name:"Republic of Macedonia"},
{id: 110, name:"Cambodia"},
{id: 111, name:"Wallis and Futuna"},
{id: 112, name:"Sierra Leone"},
{id: 113, name:"Ukraine"},
{id: 114, name:"Malaysia"},
{id: 115, name:"Bosnia and Herzegovina"},
{id: 116, name:"Cook Islands"},
{id: 117, name:"Benin"},
{id: 118, name:"Myanmar"},
{id: 119, name:"Egypt"},
{id: 120, name:"Qatar"},
{id: 121, name:"Morocco"},
{id: 122, name:"Ethiopia"},
{id: 123, name:"Bulgaria"},
{id: 124, name:"Iraq"},
{id: 125, name:"Samoa"},
{id: 126, name:"Brunei"},
{id: 127, name:"Honduras"},
{id: 128, name:"Georgia"},
{id: 129, name:"French Polynesia"},
{id: 130, name:"Jordan"},
{id: 131, name:"East Timor"},
{id: 132, name:"Tunisia"},
{id: 133, name:"Turks and Caicos Islands"},
{id: 134, name:"Swaziland"},
{id: 135, name:"Uzbekistan"},
{id: 136, name:"Senegal"},
{id: 137, name:"Lesotho"},
{id: 138, name:"Ireland"},
{id: 139, name:"Kenya"},
{id: 140, name:"te d'Ivoire"},
{id: 141, name:"Mexico"},
{id: 142, name:"United Arab Emirates"},
{id: 143, name:"Lithuania"},
{id: 144, name:"Burkina Faso"},
{id: 145, name:"Belarus"},
{id: 146, name:"Ecuador"},
{id: 147, name:"Fiji"},
{id: 148, name:"Bhutan"},
{id: 149, name:"Afghanistan"},
{id: 150, name:"Tajikistan"},
{id: 151, name:"Montenegro"},
{id: 152, name:"Montserrat"},
{id: 153, name:"Guinea-Bissau"},
{id: 154, name:"Palau"},
{id: 155, name:"Panama"},
{id: 156, name:"Nicaragua"},
{id: 157, name:"Iran"},
{id: 158, name:"Tanzania"},
{id: 159, name:"Saint Helena"},
{id: 160, name:"Colombia"},
{id: 161, name:"Yemen"},
{id: 162, name:"South Africa"},
{id: 163, name:"Guinea"},
{id: 164, name:"Eritrea"},
{id: 165, name:"Latvia"},
{id: 166, name:"Cameroon"},
{id: 167, name:"Djibouti"},
{id: 168, name:"Faroe Islands"},
{id: 169, name:"Zimbabwe"},
{id: 170, name:"Madagascar"},
{id: 171, name:"United States"},
{id: 172, name:"Estonia"},
{id: 173, name:"Liberia"},
{id: 174, name:"Venezuela"},
{id: 175, name:"Kyrgyzstan"},
{id: 176, name:"Laos"},
{id: 177, name:"Mozambique"},
{id: 178, name:"Democratic Republic of the Congo"},
{id: 179, name:"Saint-Pierre and Miquelon"},
{id: 180, name:"The Bahamas"},
{id: 181, name:"Brazil"},
{id: 182, name:"Peru"},
{id: 183, name:"Chile"},
{id: 184, name:"Sweden"},
{id: 185, name:"Uruguay"},
{id: 186, name:"Equatorial Guinea"},
{id: 187, name:"Vanuatu"},
{id: 188, name:"Solomon Islands"},
{id: 189, name:"Finland"},
{id: 190, name:"Zambia"},
{id: 191, name:"Paraguay"},
{id: 192, name:"New Zealand"},
{id: 193, name:"Sudan"},
{id: 194, name:"Argentina"},
{id: 195, name:"Algeria"},
{id: 196, name:"Pitcairn Islands"},
{id: 197, name:"Somalia"},
{id: 198, name:"Angola"},
{id: 199, name:"New Caledonia"},
{id: 200, name:"Papua New Guinea"},
{id: 201, name:"Norway"},
{id: 202, name:"Belize"},
{id: 203, name:"Republic of the Congo"},
{id: 204, name:"Saudi Arabia"},
{id: 205, name:"Niger"},
{id: 206, name:"Mali"},
{id: 207, name:"Turkmenistan"},
{id: 208, name:"Russia"},
{id: 209, name:"Bolivia"},
{id: 210, name:"Oman"},
{id: 211, name:"Chad"},
{id: 212, name:"Central African Republic"},
{id: 213, name:"Niue"},
{id: 214, name:"Kazakhstan"},
{id: 215, name:"Gabon"},
{id: 216, name:"Guyana"},
{id: 217, name:"Libya"},
{id: 218, name:"Canada"},
{id: 219, name:"Botswana"},
{id: 220, name:"Mauritania"},
{id: 221, name:"Iceland"},
{id: 222, name:"Suriname"},
{id: 223, name:"Australia"},
{id: 224, name:"Namibia"},
{id: 225, name:"French Guiana"},
{id: 226, name:"Mongolia"},
{id: 227, name:"Western Sahara"},
{id: 228, name:"Falkland Islands"},
{id: 229, name:"Greenland"}
];
private function save():void
{
this.dispatchEvent(new Event("SaveTrade"));
}
private function close(evt:CloseEvent):void
{
PopUpManager.removePopUp(this);
}
]]>
</mx:Script>
<mx:Button x="197" y="203" label="Submit" width="114" id="submitTrade" click="save()" tabIndex="11"/>
<mx:TextArea x="12" y="118" height="107" id="Notes" tabIndex="10" fontStyle="normal"/>
<mx:Label x="10" y="97" text="Notes:" fontWeight="bold" height="18" fontFamily="Georgia" fontSize="12"/>
<mx:DateField x="83" y="40" width="89" height="20" id="myDate" tabIndex="2"/>
<mx:Label x="10" y="42" text="Date:" fontWeight="bold" height="20" width="87" fontFamily="Georgia"/>
<comp:AutoCompleteModified
width="80"
dataProvider="{data2}"
labelField="name"
x="83" y="68" height="21" id="country" tabIndexChange="2" tabIndex="3"/>
<mx:Label x="10" y="70" text="Instrument:" width="75" fontWeight="bold" fontFamily="Georgia"/>
<mx:ComboBox id = "combo" x="83" y="10" width="89" rowCount="2" tabIndex="1">
<mx:ArrayCollection>
<mx:String>Long</mx:String>
<mx:String>Short</mx:String>
</mx:ArrayCollection>
</mx:ComboBox>
<mx:Label x="10" y="12" text="Direction:" width="65" fontWeight="bold" fontFamily="Georgia"/>
最后的自动完成功能的代码组件（AutocompleteModified）：
package com.adobe.flex.extras.controls
{
import flash.events.Event;
import flash.events.FocusEvent;
import flash.events.KeyboardEvent;
import flash.net.SharedObject;
import flash.ui.Keyboard;
import mx.collections.ListCollectionView;
import mx.controls.ComboBox;
import mx.core.UIComponent;
[Event(name="typedTextChange", type="flash.events.Event")]
public class AutoCompleteModified extends ComboBox
{
public function AutoCompleteModified()
{
super();
//Make ComboBox look like a normal text field
editable = true;
if(keepLocalHistory)
addEventListener("focusOut",focusOutHandler);
setStyle("arrowButtonWidth",0);
setStyle("fontWeight","normal");
setStyle("cornerRadius",0);
setStyle("paddingLeft",0);
setStyle("paddingRight",0);
rowCount = 7;
}
private var cursorPosition:Number=0;
private var prevIndex:Number = -1;
private var removeHighlight:Boolean = false;
private var showDropdown:Boolean=false;
private var showingDropdown:Boolean=false;
private var tempCollection:Object;
private var usingLocalHistory:Boolean=false;
private var dropdownClosed:Boolean=true;
//----------------------------------
// editable
//----------------------------------
/**
* @private
*/
override public function set editable(value:Boolean):void
{
//This is done to prevent user from resetting the value to false
super.editable = true;
}
/**
* @private
*/
override public function set dataProvider(value:Object):void
{
super.dataProvider = value;
if(!usingLocalHistory)
tempCollection = value;
}
//----------------------------------
// labelField
//----------------------------------
/**
* @private
*/
override public function set labelField(value:String):void
{
super.labelField = value;
invalidateProperties();
invalidateDisplayList();
}
//--------------------------------------------------------------------------
//
// Properties
//
//--------------------------------------------------------------------------
//----------------------------------
// filterFunction
//----------------------------------
/**
* @private
* Storage for the filterFunction property.
*/
private var _filterFunction:Function = defaultFilterFunction;
/**
* @private
*/
private var filterFunctionChanged:Boolean = true;
[Bindable("filterFunctionChange")]
[Inspectable(category="General")]
/**
* A function that is used to select items that match the
* function's criteria.
* A filterFunction is expected to have the following signature:
*
* <pre>f(item:~~, text:String):Boolean</pre>
*
* where the return value is <code>true</code> if the specified item
* should displayed as a suggestion.
* Whenever there is a change in text in the AutoComplete control, this
* filterFunction is run on each item in the <code>dataProvider</code>.
*
* <p>The default implementation for filterFunction works as follows:<br>
* If "AB" has been typed, it will display all the items matching
* "AB~~" (ABaa, ABcc, abAc etc.).</p>
*
* <p>An example usage of a customized filterFunction is when text typed
* is a regular expression and we want to display all the
* items which come in the set.</p>
*
* @example
* <pre>
* public function myFilterFunction(item:~~, text:String):Boolean
* {
* public var regExp:RegExp = new RegExp(text,"");
* return regExp.test(item);
* }
* </pre>
*
*/
public function get filterFunction():Function
{
return _filterFunction;
}
/**
* @private
*/
public function set filterFunction(value:Function):void
{
//An empty filterFunction is allowed but not a null filterFunction
if(value!=null)
{
_filterFunction = value;
filterFunctionChanged = true;
invalidateProperties();
invalidateDisplayList();
dispatchEvent(new Event("filterFunctionChange"));
}
else
_filterFunction = defaultFilterFunction;
}
//----------------------------------
// filterFunction
//----------------------------------
/**
* @private
* Storage for the keepLocalHistory property.
*/
private var _keepLocalHistory:Boolean = false;
/**
* @private
*/
private var keepLocalHistoryChanged:Boolean = true;
[Bindable("keepLocalHistoryChange")]
[Inspectable(category="General")]
/**
* When true, this causes the control to keep track of the
* entries that are typed into the control, and saves the
* history as a local shared object. When true, the
* completionFunction and dataProvider are ignored.
*
* @default "false"
*/
public function get keepLocalHistory():Boolean
{
return _keepLocalHistory;
}
/**
* @private
*/
public function set keepLocalHistory(value:Boolean):void
{
_keepLocalHistory = value;
}
//----------------------------------
// lookAhead
//----------------------------------
/**
* @private
* Storage for the lookAhead property.
*/
private var _lookAhead:Boolean=false;
/**
* @private
*/
private var lookAheadChanged:Boolean;
[Bindable("lookAheadChange")]
[Inspectable(category="Data")]
/**
* lookAhead decides whether to auto complete the text in the text field
* with the first item in the drop down list or not.
*
* @default "false"
*/
public function get lookAhead():Boolean
{
return _lookAhead;
}
/**
* @private
*/
public function set lookAhead(value:Boolean):void
{
_lookAhead = value;
lookAheadChanged = true;
}
//----------------------------------
// typedText
//----------------------------------
/**
* @private
* Storage for the typedText property.
*/
private var _typedText:String="";
/**
* @private
*/
private var typedTextChanged:Boolean;
[Bindable("typedTextChange")]
[Inspectable(category="Data")]
/**
* A String to keep track of the text changed as
* a result of user interaction.
*/
public function get typedText():String
{
return _typedText;
}
/**
* @private
*/
public function set typedText(input:String):void
{
_typedText = input;
typedTextChanged = true;
invalidateProperties();
invalidateDisplayList();
dispatchEvent(new Event("typedTextChange"));
}
override protected function commitProperties():void
{
super.commitProperties();
if(!dropdown)
selectedIndex=-1;
if(dropdown)
{
if(typedTextChanged)
{
cursorPosition = textInput.selectionBeginIndex;
updateDataProvider();
//In case there are no suggestions there is no need to show the dropdown
if(collection.length==0 || typedText==""|| typedText==null)
{
dropdownClosed=true;
showDropdown=false;
}
else
{
showDropdown = true;
selectedIndex = 0;
}
}
}
}
override protected function focusOutHandler(event:FocusEvent):void
{
super.focusOutHandler(event)
if(keepLocalHistory && dataProvider.length==0)
addToLocalHistory();
}
override public function getStyle(styleProp:String):*
{
if(styleProp != "openDuration")
return super.getStyle(styleProp);
else
{
if(dropdownClosed)
return super.getStyle(styleProp);
else
return 0;
}
}
override protected function keyDownHandler(event:KeyboardEvent):void
{
super.keyDownHandler(event);
if(!event.ctrlKey)
{
//An UP "keydown" event on the top-most item in the drop-down
//or an ESCAPE "keydown" event should change the text in text
// field to original text
if(event.keyCode == Keyboard.UP && prevIndex==0)
{
textInput.text = _typedText;
textInput.setSelection(textInput.text.length, textInput.text.length);
selectedIndex = -1;
}
else if(event.keyCode==Keyboard.ESCAPE && showingDropdown)
{
textInput.text = _typedText;
textInput.setSelection(textInput.text.length, textInput.text.length);
showingDropdown = false;
dropdownClosed=true;
}
else if(event.keyCode == Keyboard.ENTER)
{
if(keepLocalHistory && dataProvider.length==0)
addToLocalHistory();
/*
textInput.text = selectedLabel;
textInput.setSelection(cursorPosition, textInput.text.length);
textInput.setSelection(textInput.text.length,_typedText.length);
*/
}
else if(lookAhead && event.keyCode == Keyboard.BACKSPACE
|| event.keyCode == Keyboard.DELETE)
removeHighlight = true;
}
else
if(event.ctrlKey && event.keyCode == Keyboard.UP)
dropdownClosed=true;
prevIndex = selectedIndex;
}
override protected function measure():void
{
super.measure();
measuredWidth = mx.core.UIComponent.DEFAULT_MEASURED_WIDTH;
}
override protected function updateDisplayList(unscaledWidth:Number,
unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
//An UP "keydown" event on the top-most item in the drop
//down list otherwise changes the text in the text field to ""
if(selectedIndex == -1)
textInput.text = typedText;
if(dropdown)
{
if(typedTextChanged)
{
//This is needed because a call to super.updateDisplayList() set the text
// in the textInput to "" and thus the value
//typed by the user losts
if(lookAhead && showDropdown && typedText!="" && !removeHighlight)
{
var label:String = itemToLabel(collection[0]);
var index:Number = label.toLowerCase().indexOf(_typedText.toLowerCase());
if(index==0)
{
textInput.text = _typedText+label.substr(_typedText.length);
textInput.setSelection(textInput.text.length,_typedText.length);
}
else
{
textInput.text = _typedText;
textInput.setSelection(cursorPosition, cursorPosition);
removeHighlight = false;
}
}
else
{
textInput.text = _typedText;
textInput.setSelection(cursorPosition, cursorPosition);
removeHighlight = false;
}
typedTextChanged= false;
}
else if(typedText)
textInput.setSelection(_typedText.length,textInput.text.length);
}
if(showDropdown && !dropdown.visible)
{
super.open();
showDropdown = false;
showingDropdown = true;
if(dropdownClosed)
dropdownClosed=false;
}
}
override protected function textInput_changeHandler(event:Event):void
{
super.textInput_changeHandler(event);
//Stores the text typed by the user in a variable
typedText=text;
}
private function addToLocalHistory():void
{
if (id != null && id != "" && text != null && text != "")
{
var so:SharedObject = SharedObject.getLocal("AutoCompleteData");
var savedData : Array = so.data.suggestions;
//No shared object has been created so far
if (savedData == null)
savedData = new Array();
var i:Number=0;
var flag:Boolean=false;
//Check if this entry is there in the previously saved shared object data
for(i=0;i<savedData.length;i++)
if(savedData[i]==text)
{
flag=true;
break;
}
if(!flag)
{
//Also ensure it is not there in the dataProvider
for(i=0;i<collection.length;i++)
if(defaultFilterFunction(itemToLabel(ListCollectionView(collection).getItemAt(i)),text))
{
flag=true;
break;
}
}
if(!flag)
savedData.push(text);
so.data.suggestions = savedData;
//write the shared object in the .sol file
so.flush();
}
}
private function defaultFilterFunction(element:*, text:String):Boolean
{
var label:String = itemToLabel(element);
return (label.toLowerCase().substring(0,text.length) == text.toLowerCase());
}
private function templateFilterFunction(element:*):Boolean
{
var flag:Boolean=false;
if(filterFunction!=null)
flag=filterFunction(element,typedText);
return flag;
}
private function updateDataProvider():void
{
dataProvider = tempCollection;
collection.filterFunction = templateFilterFunction;
collection.refresh();
if(collection.length==0 && keepLocalHistory)
{
var so:SharedObject = SharedObject.getLocal("AutoCompleteData");
usingLocalHistory = true;
dataProvider = so.data.suggestions;
usingLocalHistory = false;
collection.filterFunction = templateFilterFunction;
collection.refresh();
}
}
//--------------------------------------------------------------------------
//
// modified source
//
//--------------------------------------------------------------------------
/**
* Closes the combox and set the selection which is lost using Flex 3
*
* @event Event Trigger event to close the combobox
*/
override public function close(event:Event = null):void
{
super.close(event);
if(selectedIndex == 0)
{
// set the text using the selected label
textInput.text = selectedLabel;
// select the text from typed text position to texts length
textInput.setSelection(cursorPosition, textInput.text.length);
}
}
}
}
你想做什么，请详细说明。 – Eugene 2010-09-07 23:04:57