XmlAnyElementAttributes Class
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XmlAnyElementAttributes Class

 

Represents a collection of XmlAnyElementAttribute objects.

Namespace:   System.Xml.Serialization
Assembly:  System.Xml (in System.Xml.dll)

System.Object
  System.Collections.CollectionBase
    System.Xml.Serialization.XmlAnyElementAttributes

public class XmlAnyElementAttributes : CollectionBase

NameDescription
System_CAPS_pubmethodXmlAnyElementAttributes()

Initializes a new instance of the XmlAnyElementAttributes class.

NameDescription
System_CAPS_pubpropertyCapacity

Gets or sets the number of elements that the CollectionBase can contain.(Inherited from CollectionBase.)

System_CAPS_pubpropertyCount

Gets the number of elements contained in the CollectionBase instance. This property cannot be overridden.(Inherited from CollectionBase.)

System_CAPS_protpropertyInnerList

Gets an ArrayList containing the list of elements in the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_pubpropertyItem[Int32]

Gets or sets the XmlAnyElementAttribute at the specified index.

System_CAPS_protpropertyList

Gets an IList containing the list of elements in the CollectionBase instance.(Inherited from CollectionBase.)

NameDescription
System_CAPS_pubmethodAdd(XmlAnyElementAttribute)

Adds an XmlAnyElementAttribute to the collection.

System_CAPS_pubmethodClear()

Removes all objects from the CollectionBase instance. This method cannot be overridden.(Inherited from CollectionBase.)

System_CAPS_pubmethodContains(XmlAnyElementAttribute)

Gets a value that indicates whether the specified XmlAnyElementAttribute exists in the collection.

System_CAPS_pubmethodCopyTo(XmlAnyElementAttribute[], Int32)

Copies the entire collection to a compatible one-dimensional array of XmlElementAttribute objects, starting at the specified index of the target array.

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetEnumerator()

Returns an enumerator that iterates through the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodIndexOf(XmlAnyElementAttribute)

Gets the index of the specified XmlAnyElementAttribute.

System_CAPS_pubmethodInsert(Int32, XmlAnyElementAttribute)

Inserts an XmlAnyElementAttribute into the collection at the specified index.

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodOnClear()

Performs additional custom processes when clearing the contents of the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnClearComplete()

Performs additional custom processes after clearing the contents of the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnInsert(Int32, Object)

Performs additional custom processes before inserting a new element into the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnInsertComplete(Int32, Object)

Performs additional custom processes after inserting a new element into the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnRemove(Int32, Object)

Performs additional custom processes when removing an element from the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnRemoveComplete(Int32, Object)

Performs additional custom processes after removing an element from the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnSet(Int32, Object, Object)

Performs additional custom processes before setting a value in the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnSetComplete(Int32, Object, Object)

Performs additional custom processes after setting a value in the CollectionBase instance.(Inherited from CollectionBase.)

System_CAPS_protmethodOnValidate(Object)

Performs additional custom processes when validating a value.(Inherited from CollectionBase.)

System_CAPS_pubmethodRemove(XmlAnyElementAttribute)

Removes the specified XmlAnyElementAttribute from the collection.

System_CAPS_pubmethodRemoveAt(Int32)

Removes the element at the specified index of the CollectionBase instance. This method is not overridable.(Inherited from CollectionBase.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethodICollection.CopyTo(Array, Int32)

Copies the entire CollectionBase to a compatible one-dimensional Array, starting at the specified index of the target array.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIList.Add(Object)

Adds an object to the end of the CollectionBase.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIList.Contains(Object)

Determines whether the CollectionBase contains a specific element.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIList.IndexOf(Object)

Searches for the specified Object and returns the zero-based index of the first occurrence within the entire CollectionBase.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIList.Insert(Int32, Object)

Inserts an element into the CollectionBase at the specified index.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIList.Remove(Object)

Removes the first occurrence of a specific object from the CollectionBase.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyICollection.IsSynchronized

Gets a value indicating whether access to the CollectionBase is synchronized (thread safe).(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyICollection.SyncRoot

Gets an object that can be used to synchronize access to the CollectionBase.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIList.IsFixedSize

Gets a value indicating whether the CollectionBase has a fixed size.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIList.IsReadOnly

Gets a value indicating whether the CollectionBase is read-only.(Inherited from CollectionBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIList.Item[Int32]

Gets or sets the element at the specified index.(Inherited from CollectionBase.)

NameDescription
System_CAPS_pubmethodAsParallel()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethodAsQueryable()

Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.)

System_CAPS_pubmethodCast<TResult>()

Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.)

System_CAPS_pubmethodOfType<TResult>()

Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.)

Use the XmlAnyElementAttributes to override the behavior of a set of XmlAnyElementAttribute objects. Multiple instances of the XmlAnyElementAttribute class can be applied to a class member, as long as each instance has a distinct Name property value; this instructs the XmlSerializer to collect unknown elements under the named element into the appropriate array. It is for this reason that multiple instances of the XmlAnyElementAttribute class can be added to the XmlAnyElementAttributes.

To override a set of XmlAnyElementAttribute objects:

  1. Create an XmlAnyElementAttributes.

  2. Create the set of XmlAnyElementAttribute objects, and add each object to the collection using the Add method.

  3. Create an XmlAttributes.

  4. Set the XmlAnyElements property to the XmlAnyElementAttributes.

  5. Create an XmlAttributeOverrides.

  6. Add the XmlAttributes to the XmlAttributeOverrides using the Add method.

  7. Create an instance of the XmlSerializer using the XmlAttributeOverrides.

  8. Serialize or deserialize an object that contains the set of XmlAnyElementAttribute objects.

The following example creates a new XmlAnyElementAttribute and adds it to the collection of objects accessed through the XmlAnyElements property. The XmlAttributes is then added to a XmlAttributeOverrides which is used to create an XmlSerializer. The XmlSerializer is used to serialize or deserialize an object. To see the effect of using the XmlAnyElementAttributes property, create an XML document named UnknownElements.xml by running the SerializeObject method in the Main method. Edit the resulting document to include other (unknown) elements. Comment out the SerializeObject call in the Main method, and uncomment the call to the DeserializeObject method, which prints out the name and value of any unknown XML element.

using System;
using System.IO;
using System.Xml.Serialization;
using System.Xml;

public class Group{
   public string GroupName;
   [XmlAnyElement]
   public object[]Things;

}

public class Test{
   static void Main(){
      Test t = new Test();
      // 1 Run this and create the XML document.
      // 2 Add new elements to the XML document.
      // 3 Comment out the new line, and uncomment
      // the DeserializeObject line to deserialize the
      // XML document and see unknown elements.
      t.SerializeObject("UnknownElements.xml");

      // t.DeserializeObject("UnknownElements.xml");
   }

   private void SerializeObject(string filename){
      XmlSerializer ser = new XmlSerializer(typeof (Group));
      TextWriter writer = new StreamWriter(filename);
      Group g = new Group();
      g.GroupName = "MyGroup";
      ser.Serialize(writer, g);
      writer.Close();
   }


   private void DeserializeObject(string filename){

      XmlSerializer ser = CreateOverrideSerializer();
      // A FileStream is needed to read the XML document.
      FileStream fs = new FileStream(filename, FileMode.Open);
     Group g = (Group)
     	ser.Deserialize(fs);
     fs.Close();
     Console.WriteLine(g.GroupName);
     Console.WriteLine(g.Things.Length);
     foreach(XmlElement xelement in g.Things){
     Console.WriteLine(xelement.Name + ": " + xelement.InnerXml);
     }
   }

   private XmlSerializer CreateOverrideSerializer(){
      XmlAnyElementAttribute myAnyElement = 
      new XmlAnyElementAttribute();
      XmlAttributeOverrides xOverride = 
      new XmlAttributeOverrides();
      XmlAttributes xAtts = new XmlAttributes();
      xAtts.XmlAnyElements.Add(myAnyElement);
      xOverride.Add(typeof(Group), "Things", xAtts);
      return new XmlSerializer(typeof(Group) , xOverride);
   }
}

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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