Flex：将 XML 转换为具有多个节点的 ArrayCollection

发布于 2024-11-26 23:31:03 字数 1514 浏览 0 评论 0原文

我正在读取一个 XML 文件，其中树的分支如下所示：

    <data id="Shallow" label="Show Shallow Imagery (1 m)">
      <layer name="Bathymetry" url="OtherImagery" type="Dynamic" legendurl="">
        <visiblelayers>1</visiblelayers>
        <visiblelayers>4</visiblelayers>
      </layer>
      <layer name="Backscatter" url="OtherImagery" type="Dynamic" legendurl="">
        <visiblelayers>2</visiblelayers>
      </layer>
      <layer name="PCA" url="BUIS_Imagery" type="Dynamic" legendurl="">
        <visiblelayers>3</visiblelayers>
        <visiblelayers>4</visiblelayers>
      </layer>
    </data>

用户使用单选按钮选择图层，并在单击事件中传递图层。(@name==e.target.label)。 visiblelayers 为将 XML 转换为 ArrayCollection 的函数。

 private function convertXMLtoArrayCollection(file:XMLList):ArrayCollection{
    var xml:XMLDocument = new XMLDocument(file);
    var decoder:SimpleXMLDecoder = new SimpleXMLDecoder;
    var data:Object = decoder.decodeXML((xml));
    var array:Array = ArrayUtil.toArray(data);

    return new ArrayCollection(array);
}

对于只有一个visiblelayers节点的“Backscatter”层，我得到了预期的ArrayCollection返回值。在此处输入图像描述

但其他两层返回一个 ArrayCollection，其中添加了visibleLayers 节点。在此处输入图像描述

为什么它不返回这样的 ArrayCollection？在此处输入图像描述

原文

I have an XML file I'm reading in where a branch of the tree looks like this:

    <data id="Shallow" label="Show Shallow Imagery (1 m)">
      <layer name="Bathymetry" url="OtherImagery" type="Dynamic" legendurl="">
        <visiblelayers>1</visiblelayers>
        <visiblelayers>4</visiblelayers>
      </layer>
      <layer name="Backscatter" url="OtherImagery" type="Dynamic" legendurl="">
        <visiblelayers>2</visiblelayers>
      </layer>
      <layer name="PCA" url="BUIS_Imagery" type="Dynamic" legendurl="">
        <visiblelayers>3</visiblelayers>
        <visiblelayers>4</visiblelayers>
      </layer>
    </data>

The user selects the layer using a radiobutton and in the click event, I pass layer.(@name==e.target.label).visiblelayers to a function that converts XML to an ArrayCollection.

 private function convertXMLtoArrayCollection(file:XMLList):ArrayCollection{
    var xml:XMLDocument = new XMLDocument(file);
    var decoder:SimpleXMLDecoder = new SimpleXMLDecoder;
    var data:Object = decoder.decodeXML((xml));
    var array:Array = ArrayUtil.toArray(data);

    return new ArrayCollection(array);
}

For the "Backscatter" layer with only one visiblelayers node, I get the expected ArrayCollection returned.
enter image description here

But the other two layers returns an ArrayCollection with the visibleLayers node added in.
enter image description here

Why isn't it returning an ArrayCollection like this?
enter image description here

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神爱温柔 2024-12-03 23:31:03

我最终使用以下函数返回适合我的代码的 ArrayCollection：

private function convertXMLtoArrayCollection1(file:XMLList):ArrayCollection
{
    var arrcol:ArrayCollection = new ArrayCollection;

    for each (var value:* in file)
    {
        arrcol.addItem(value)
    }

    return arrcol;
}

I ended up using the following function to return an ArrayCollection that was suitable for my code:

private function convertXMLtoArrayCollection1(file:XMLList):ArrayCollection
{
    var arrcol:ArrayCollection = new ArrayCollection;

    for each (var value:* in file)
    {
        arrcol.addItem(value)
    }

    return arrcol;
}

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