flex json使用需注意的
1.定义ArrayCollection,如下:??????????? [Bindable]
??????????? private var medalsAC:ArrayCollection = new ArrayCollection( [
???????????? { Country: "第22期", Gold: 5, Silver:0, Bronze: 0 },
??????????? { Country: "第23期", Gold: 2, Silver:0, Bronze: 0 },
???????????? { Country: "第24期", Gold: 6, Silver:0, Bronze: 0 },
??????????? { Country: "第25期", Gold: 8, Silver:0, Bronze: 0 },
???????????? { Country: "第26期", Gold: 1, Silver:0, Bronze: 0 },
??????????? { Country: "第27期", Gold: 5, Silver:0, Bronze: 0 },
???????????? { Country: "第28期", Gold: 1, Silver:0, Bronze: 0 },
??????????? { Country: "第29期", Gold: 9, Silver:0, Bronze: 0 },
??????????? { Country: "第30期", Gold: 3, Silver:0, Bronze: 0 } ]);//使用json生成ArrayCollection需要注意的是属性值需转义为字符串,如"Country"private function createXML(array:Array):void
??????????? {
????????????? var xmlString:String="[";
????????????? var a:int = array.length;
????????????? for(var i:int=0;i<a;i++)
????????????? {
????????????? ?if(i==a-1)
????????????? ?{
????????????? ??xmlString+="{"Country":""+array[i].Qs+"","Gold":"+array[i][head.select]?? +","Silver":0, "Bronze": 0}";
????????????? ?}else
????????????? ?{
????????????? ??xmlString+="{"Country":""+array[i].Qs+"", "Gold":"+array[i][head.select]+", "Silver":0, "Bronze": 0},";
????????????? ?}
????????????? ?
????????????? }
????????????? xmlString+="]";
????????????? var arr:Array = (JSON.decode(xmlString) as Array);
????????????? var dp:ArrayCollection = new ArrayCollection(arr);
????????????? column.dataProvider=dp;
??????????? }
