.NET Language-Integrated Query for XML Data

 

XNamespace myNs = "http://mycompany.com";XElement contacts =   new XElement(myNs + "contacts",      new XElement(myNs + "contact",         new XElement(myNs + "name", "Patrick Hines"),         new XElement(myNs + "phone", "206-555-0144",              new XAttribute("type", "home")),         new XElement(myNs + "phone", "425-555-0145",             new XAttribute("type", "work")),         new XElement(myNs + "address",            new XElement(myNs + "street1", "123 Main St"),            new XElement(myNs + "city", "Mercer Island"),            new XElement(myNs + "state", "WA"),            new XElement(myNs + "postal", "68042")         )      )   );

 

产生如下文件：在最上层指定命名空间，分节点默认还有父节点的命名空间*继承性）

        
            
       
        Patrick Hines
             
       
        206-555-0144
             
       
        425-555-0145
             
       
         
        
         123 Main St
                 
        
         Mercer Island
                 
        
         WA
                 
        
         68042
              
   
      
     

 

 XML Namespaces

Code Project:

private Dictionary
     
      
       , KeyValuePair
       
        > RetriveDataFromXmLFile(string xmlFilePath, out KeyValuePair
        
          guidComment, out KeyValuePair
         
           guidDescription)        {            // XML format            //
          
            //
           
             //
            
              //
             
              EvaluationRule
              //
             
              Update
              //
             
              1055
              //
             
               //
              
               1055
               //
              
               AddPI_ACHCHECK_USs
               //
              //
             //
            //
           
            TestByBob3
            //
           
            TestByBob3
            //
           
            86b6d584-2fb9-45fe-aea7-acc4479a3b3f
            //
                      Dictionary
          
           
            , KeyValuePair
            
             > groupsChange = new Dictionary
             
              
               , KeyValuePair
               
                >(); XNamespace urnl = "urn:schemas.amc.com/Cdefce/Name/Mode/2011/04"; XNamespace i = "http://www.w3.org/2001/XMLSchema instance"; XElement elem = XElement.Load(xmlFilePath); string changeGuid = elem.Element(urnl + "GroupId").Value; string comments = elem.Element(urnl + "Comments").Value; string description = elem.Element(urnl + "Description").Value; guidComment = new KeyValuePair
                
                 (changeGuid, comments); guidDescription = new KeyValuePair
                 
                  (changeGuid, description); var configChanges = elem.Elements(urnl + "Changes").Elements(urnl + "ConfigChange"); foreach (var change in configChanges) { string key = change.Element(urnl + "Key").Value; string configObjectType = change.Element(urnl + "ConfigObjectType").Value; string text = change.ToString(); KeyValuePair
                  
                    idXml = new KeyValuePair
                   
                    (changeGuid, text); KeyValuePair
                    
                      typeKey = new KeyValuePair
                     
                      (configObjectType, key); groupsChange.Add(typeKey, idXml); } return groupsChange; }