如何查询地址？ （LINQ to XML）

Question

<Response xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.microsoft.com/search/local/ws/rest/v1">
<Copyright>
Copyright © 2011 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.
</Copyright>
<BrandLogoUri>
[http://dev.virtualearth.net/Branding/logo_powered_by.png]
</BrandLogoUri>
<StatusCode>200</StatusCode>
<StatusDescription>OK</StatusDescription>
<AuthenticationResultCode>ValidCredentials</AuthenticationResultCode>
<TraceId>
50230e70257e4ed5a5002a3d4a625c83|LTSM001156|02.00.159.1700|LTSMSNVM001471, LTSMSNVM001477
</TraceId>
<ResourceSets>
<ResourceSet>
<EstimatedTotal>1</EstimatedTotal>
<Resources>
<Location>
<Name>1 Microsoft Way, Redmond, WA 98052</Name>
<Point>
<Latitude>47.640568390488625</Latitude>
<Longitude>-122.1293731033802</Longitude>
</Point>
<BoundingBox>
<SouthLatitude>47.636705672917948</SouthLatitude>
<WestLongitude>-122.137016420622</WestLongitude>
<NorthLatitude>47.6444311080593</NorthLatitude>
<EastLongitude>-122.1217297861384</EastLongitude>
</BoundingBox>
<EntityType>Address</EntityType>
<Address>
<AddressLine>1 Microsoft Way</AddressLine>
<AdminDistrict>WA</AdminDistrict>
<AdminDistrict2>King Co.</AdminDistrict2>
<CountryRegion>United States</CountryRegion>
<FormattedAddress>1 Microsoft Way, Redmond, WA 98052</FormattedAddress>
<Locality>Redmond</Locality>
<PostalCode>98052</PostalCode>
</Address>
<Confidence>Medium</Confidence>
</Location>
</Resources>
</ResourceSet>
</ResourceSets>
</Response>

如何从地址查询地点。 我想这是LINQ to XML对象的文本。 我在xmlLocation.Elements（“地址”）中尝试了var asdf = from q选择q.Element（“Locality”）。Value; 但不行，为什么？

如果你知道请写信给我谢谢

Answer 1

Xml名称空间; 由于您的数据不在默认命名空间中，因此您需要：

XNamespace ns = "http://schemas.microsoft.com/search/local/ws/rest/v1";

然后在所有查询中使用它，即

var asdf = from q in xmlLocation.Elements(ns + "Address")
           select (string) q.Element(ns + "Locality");

Answer 2

var ns = XNamespace.Get("http://schemas.microsoft.com/search/local/ws/rest/v1");
var asdf = from q in xmlLocation.Descendants(ns + "Address") 
           select q.Element(ns + "Locality").Value;