<mx:TextInput id="TxtFileName" editable="false" width="200"/> <mx:Image id="btnBrowser" toolTip="Browser" buttonMode="true" click="fileBrowser(event)"
source="@Embed(source=‘../assets/icon/icon_browser.png‘)"/>
<mx:Button id="btnUpload" label="Upload" buttonMode="true" click="addAttachment(event)" skin="@Embed(source=‘../assets/skin/btn_skin.gif‘)" width="80" height="23" />
新建一个 textiput存储显示文件名和image来做button选取本地图片文件。
触发的事件代码
private var curfile:FileReference=new FileReference();
private var browerFlag:Boolean=false;
private function fileBrowser(event:Event):void { var imageTypes:FileFilter = new FileFilter("Images(*.jpg,*.jpeg,*.png,*.gif,*.bmp,*.pdf,*.tif)", "*.jpg;*.jpeg;*.png;*.gif;*.bmp;;*.pdf;*.tif"); curfile.browse([imageTypes]); }
程序initialize的时候为curfile加监听事件initialize="init()
private function init():void { curfile.addEventListener(Event.SELECT,addInTextinput); } private function addInTextinput(event:Event):void { TxtFileName.text = curfile.name; }
Button Upload的处理事件
private function addAttachment(event:Event):void { if(!browerFlag) { return; } if(!curfile.type) { browerFlag=false; TxtFileName.text=""; Alert.show(CONSTANT.VoidFileType,CONSTANT.PROJNAME,Alert.OK); return; } var type:String=curfile.type.toLowerCase(); if(type&&type!=‘.jpg‘&&type!=‘.png‘&&type!=‘.bmp‘&&type!=‘.gif‘&&type!=‘.pdf‘&&type!=‘.tif‘) { browerFlag=false; TxtFileName.text=""; Alert.show(CONSTANT.VoidFileType,CONSTANT.PROJNAME,Alert.OK); return; } /* if(curfile.size>4194304) */ if(curfile.size>10485760) { browerFlag=false; TxtFileName.text=""; Alert.show(CONSTANT.AttachmentMax,CONSTANT.PROJNAME,Alert.OK); return; } //---upload handler-------------- var url:String = "UploadFileHandler.aspx?TempFileID="+SysParm.expInfo.ExpenseGUID+"&StaffID="+SysParm.curStaffInfo.StaffID; var reqUrl:URLRequest = new URLRequest(url); curfile.upload(reqUrl); }
怎加两个上传结束以及捕捉错误的事件监听。
private function init():void { curfile.addEventListener(Event.SELECT,addInTextinput); curfile.addEventListener(Event.COMPLETE,uploadComplete); curfile.addEventListener(IOErrorEvent.IO_ERROR,uploadError); }
private function uploadComplete(event:Event):void { browerFlag=false; ExpenseFunction.removeBusy(); Alert.show(CONSTANT.UploadSuccess,CONSTANT.PROJNAME,Alert.OK,null,refreshAttachmentHandler); } private function uploadError(ioError:IOErrorEvent):void { browerFlag=false; TxtFileName.text=""; Alert.show(CONSTANT.UploadFail,CONSTANT.PROJNAME); } private function refreshAttachmentHandler(event:CloseEvent):void { TxtFileName.text=""; browerFlag=false; }