c# - 使用 XMLTextReader，我如何知道我在哪个元素上？

Question

我的代码是这样的:

case "Creator":
    br.Read();
    br.MoveToContent();  // gives the content of the role
    tbComposer.Text = br.Value;
    br.Read();
    br.MoveToContent();  // gives the content of the role
    tbConductor.Text = br.Value;
    br.Read();
    br.MoveToContent();  // gives the content of the role
    tbOrchestra.Text = br.Value;
    break;

这是工作代码:(感谢大家的输入……没有你我做不到!)Spokane-Dude

                case "Creator":
                    br.MoveToFirstAttribute();
                    if (br.Value == "Composer") {
                        br.Read();
                        tbComposer.Text = br.Value;
                    }
                    if (br.Value == "Conductor") {
                        br.Read();
                        tbConductor.Text = br.Value;
                    }
                    if (br.Value == "Orchestra") {
                        br.Read();
                        tbOrchestra.Text = br.Value;
                    }
                    break;

这是我的 XML 的样子:

<ItemLookupResponse>
    <OperationRequest/>
    <Items>
        <Request/>
        <Item>
            <ItemAttributes>
                <Binding>Audio CD</Binding>
                <CatalogNumberList>
                    <CatalogNumberListElement>43850</CatalogNumberListElement>
                </CatalogNumberList>
                <Creator Role="Composer">Gioachino Rossini</Creator>
                <Creator Role="Conductor">Riccardo Chailly</Creator>
                <Creator Role="Orchestra">National Philharmonic Orchestra</Creator>
            </ItemAttributes>
        </Item>
    </Items>
</ItemLookupResponse>

我需要知道我正在阅读元素 Creator Role="Composer" 还是 Creator Role="Conductor" 等

那么，使用 XMLTextReader，我如何确定元素文本是什么？

Answer 1

这个样本怎么样？希望对你有用

   static void Main(string[] args)
    {

        string xmlStr = "<?xml version=\"1.0\" encoding=\"utf-8\" ?><Creators><Creator Role=\"Composer\">Gioachino Rossini</Creator><Creator Role=\"Conductor\">Riccardo Chailly</Creator><Creator Role=\"Orchestra\">National Philharmonic Orchestra</Creator></Creators>";
        using (XmlReader xmlReader = XmlTextReader.Create(new StringReader(xmlStr)))
        {
            xmlReader.MoveToContent();
            xmlReader.ReadStartElement("Creators" , "");
            SomeMethod("Composer", xmlReader);
            SomeMethod("Conductor", xmlReader);
            SomeMethod("Orchestra", xmlReader);
        }

        Console.WriteLine("........");
        Console.Read();
    }

    static void SomeMethod(string role, XmlReader xmlReader)
    {
        xmlReader.MoveToAttribute("Role");

        switch (role)
        {
            case "Composer":
                {
                    xmlReader.MoveToContent();
                    Console.WriteLine(string.Format("Composer:{0}", xmlReader.ReadElementContentAsString()));

                } break;
            case "Conductor":
                {
                    xmlReader.MoveToContent();
                    Console.WriteLine(string.Format("Conductor:{0}", xmlReader.ReadElementContentAsString()));

                } break;
            case "Orchestra":
                {
                    xmlReader.MoveToContent();
                    Console.WriteLine(string.Format("Orchestra:{0}", xmlReader.ReadElementContentAsString()));

                } break;

            default: break;
        }
    }