基于PARAMS动态XML过滤 [英] Dynamic XML filtering based on params

问题描述

跟进<一个问题href="http://stackoverflow.com/questions/9183734/filtering-xml-based-on-multiple-params-flex">Filtering基于多PARAMS XML - Flex的

我试图动态创建查询部分，使PARAMS和按键接管建设标准的一部分。只是为了说明：

I was trying to create the Query part dynamically so that params and the keys take over for building the criteria part. Just to show:

 //building a dynamic query like this 
var q1:String = "descendants (\"E1" ) == \"111\" )"; 
Alert.show("Query>>"+q1.toString());     // Output: descendants ("E1" ) == "111"

var r2:XMLList = xmlData..*.(descendants ("E1" ) == "111"); //returns correct result 
var r1:XMLList = xmlData..*.(q1.toString());  // weird response, 
                                              // doesn't filter out anything

在这里<一个注释href="http://stackoverflow.com/questions/9183734/filtering-xml-based-on-multiple-params-flex#comment11557459_9184132">Filtering基于多PARAMS XML - Flex的说，括号内的前pression不应该是一个字符串。答应了。

A comment here Filtering XML based on multiple params - Flex says that the expression inside the parentheses should not be a string. Agreed.

那么，还有没有其他的方法来筛选出多个参数中的XML，而不是使用 的后裔（），目前没有工作，因为我们是动态生成的搜索查询的基础上，PARAMS搜索？

So, is there any other approach to filter out multiple parameters in XML than to use the descendants(), which currently is not working out because we are building the search query dynamically, based on the params searched?

任何指针/想法将有很大的帮助。

Any pointers/ideas would be of great help.

推荐答案

如何做过滤在一个循环？

How about doing the filtering in a loop?

var filters : Array = [ { key : "E1", value : "333" }, { key : "D1", value : "333" } ];

var searchItem : XMLList = xmlData.*;
for each (var filter:Object in filters)
    searchItem = searchItem.( descendants ( filter.key ) == filter.value);

trace (searchItem);

这篇关于基于PARAMS动态XML过滤的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！