linq-to-xml

问题 I'm trying to get the value of the Address element from the following XML text, but it's not finding it unless I remove xmlns="http://www.foo.com" from the Root element. However, the XML is valid even with it. What's the problem here? Since I'm getting the XML text from a web service, I don't have control over it, but I can strip out the xmlns part if I have to as the last resort. <?xml version="1.0" encoding="utf-8"?> <Root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd=

问题 I have the following XML file. I want to get Max("NR") using LINQ . Could anyone help me to do this? I know how to do this for nodes, but attributes made me confused... :S <?xml version="1.0" encoding="utf-8"?> <SMPyramid LayerName="qwe" LayerPath="D:\#PYRAMID\qwe" Extension=".png" Meters="100000" RasterSize="4000"> <Level NR="0" RasterXSize="512" RasterYSize="512" LastTileXSize="416" LastTileYSize="416" MinX="400000" MaxX="500000" MinY="1200000" MaxY="1300000" ScaleFactor="25" TilesCountX="8

问题 I have the following XML file. I want to get Max("NR") using LINQ . Could anyone help me to do this? I know how to do this for nodes, but attributes made me confused... :S <?xml version="1.0" encoding="utf-8"?> <SMPyramid LayerName="qwe" LayerPath="D:\#PYRAMID\qwe" Extension=".png" Meters="100000" RasterSize="4000"> <Level NR="0" RasterXSize="512" RasterYSize="512" LastTileXSize="416" LastTileYSize="416" MinX="400000" MaxX="500000" MinY="1200000" MaxY="1300000" ScaleFactor="25" TilesCountX="8

问题 I have an XElement which has content like this. <Response xmlns="someurl" xmlnsLi="thew3url"> <ErrorCode></ErrorCode> <Status>Success</Status> <Result> <Manufacturer> <ManufacturerID>46</ManufacturerID> <ManufacturerName>APPLE</ManufacturerName> </Manufacturer> //More Manufacturer Elements like above here </Result> </Response> How will i read the Value inside Status element ? I tried XElement stats = myXel.Descendants("Status").SingleOrDefault(); But that is returning null. 回答1: XElement

问题 I have an XElement which has content like this. <Response xmlns="someurl" xmlnsLi="thew3url"> <ErrorCode></ErrorCode> <Status>Success</Status> <Result> <Manufacturer> <ManufacturerID>46</ManufacturerID> <ManufacturerName>APPLE</ManufacturerName> </Manufacturer> //More Manufacturer Elements like above here </Result> </Response> How will i read the Value inside Status element ? I tried XElement stats = myXel.Descendants("Status").SingleOrDefault(); But that is returning null. 回答1: XElement

问题 I have the following xml <root> <databases> <db1 name="Name1" /> <db2 name="Name2" server="myserver" /> <db3 name="Name3" /> </databases> <root> I've tried everything to read the name of the db2 (="Name2") with all possible combinations of XPath queries, but never get the expected result. My Code so far: var query = "root/databases/db2.. "; // here I've tried everything var doc = XDocument.Load("myconfig.xml"); var dbName = doc.XPathSelectElement(query); What's the correct query to get my

问题 I'm running into real difficulties validating XML with XSD. I should prefix all of this and state up front, I'm new to XSD and validation, so I'm not sure if it's a code issue or an XML issue. I've been to XML API hell and back with the bajillion different options and think that I've found what would be the ideal strategy for validating XML with XSD. Note, my XML and XSD are coming from a database, so I don't need to read anything from disk. I've narrowed my problem down into a simple sample

问题 <?xml version="1.0" encoding="utf-8" ?> <pages> <page id="56"> <img id="teaser" src="img/teaser_company.png"></img> </page> </pages> I have an xml file that defines additional resources for pages within a cms. What's the best way to guard for Null Reference exceptions when querying this file with LinqToXml? var page = (from tabElement in extensionsDoc.Descendants("page") where tabElement.Attribute("id").Value == tabId.ToString() select tabElement).SingleOrDefault(); This code could

问题 When you create a new XDocument using XDocument.Load , does it open the XML file and keep a local copy, or does it continuously read the document from the hard drive? If it does continuously read, is there a faster way to parse XML? XDocument x = XDocument.Load("file.xml"); 回答1: There are a couple of measurements to consider: Linear traversal speed (e.g. reading/loading) On-demand query speed To answer the immediate question: XDocument uses an XmlReader to load the document into memory by

问题 I'm basically brand new to LINQ. I've looked around a lot on here and am pretty confused. I've seen some examples that allow me to strong type objects using LINQ but I don't really understand them because they're in C#, which I guess lets you do different things with LINQ(I think?). Anyways, this is what I'm trying to do: Dim productXML As XDocument = XDocument.Load( _ Server.MapPath("~/App_Data/products.xml")) Dim products As List(Of Product) = 'some query to select all products ?' 'set up