XmlSchemaGroup Class
Represents the group element from XML Schema as specified by the World Wide Web Consortium (W3C). This class defines groups at the schema level that are referenced from the complex types. It groups a set of element declarations so that they can be incorporated as a group into complex type definitions.
Assembly: System.Xml (in System.Xml.dll)
System.Xml.Schema.XmlSchemaObject
System.Xml.Schema.XmlSchemaAnnotated
System.Xml.Schema.XmlSchemaGroup
| Name | Description | |
|---|---|---|
![]() | XmlSchemaGroup() | Initializes a new instance of the XmlSchemaGroup class. |
| Name | Description | |
|---|---|---|
![]() | Annotation | Gets or sets the annotation property.(Inherited from XmlSchemaAnnotated.) |
![]() | Id | Gets or sets the string id.(Inherited from XmlSchemaAnnotated.) |
![]() | LineNumber | Gets or sets the line number in the file to which the schema element refers.(Inherited from XmlSchemaObject.) |
![]() | LinePosition | Gets or sets the line position in the file to which the schema element refers.(Inherited from XmlSchemaObject.) |
![]() | Name | Gets or sets the name of the schema group. |
![]() | Namespaces | Gets or sets the XmlSerializerNamespaces to use with this schema object.(Inherited from XmlSchemaObject.) |
![]() | Parent | Gets or sets the parent of this XmlSchemaObject.(Inherited from XmlSchemaObject.) |
![]() | Particle | Gets or sets one of the XmlSchemaChoice, XmlSchemaAll, or XmlSchemaSequence classes. |
![]() | QualifiedName | Gets the qualified name of the schema group. |
![]() | SourceUri | Gets or sets the source location for the file that loaded the schema.(Inherited from XmlSchemaObject.) |
![]() | UnhandledAttributes | Gets or sets the qualified attributes that do not belong to the current schema's target namespace.(Inherited from XmlSchemaAnnotated.) |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
The following example shows the use of the XmlSchemaGroup class.
using System; using System.Xml; using System.Xml.Schema; class XMLSchemaExamples { public static void Main() { XmlSchema schema = new XmlSchema(); // <xs:element name="thing1" type="xs:string"/> XmlSchemaElement elementThing1 = new XmlSchemaElement(); schema.Items.Add(elementThing1); elementThing1.Name = "thing1"; elementThing1.SchemaTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema"); // <xs:element name="thing2" type="xs:string"/> XmlSchemaElement elementThing2 = new XmlSchemaElement(); schema.Items.Add(elementThing2); elementThing2.Name = "thing2"; elementThing2.SchemaTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema"); // <xs:element name="thing3" type="xs:string"/> XmlSchemaElement elementThing3 = new XmlSchemaElement(); schema.Items.Add(elementThing3); elementThing3.Name = "thing3"; elementThing3.SchemaTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema"); // <xs:attribute name="myAttribute" type="xs:decimal"/> XmlSchemaAttribute myAttribute = new XmlSchemaAttribute(); schema.Items.Add(myAttribute); myAttribute.Name = "myAttribute"; myAttribute.SchemaTypeName = new XmlQualifiedName("decimal", "http://www.w3.org/2001/XMLSchema"); // <xs:group name="myGroupOfThings"> XmlSchemaGroup myGroupOfThings = new XmlSchemaGroup(); schema.Items.Add(myGroupOfThings); myGroupOfThings.Name = "myGroupOfThings"; // <xs:sequence> XmlSchemaSequence sequence = new XmlSchemaSequence(); myGroupOfThings.Particle = sequence; // <xs:element ref="thing1"/> XmlSchemaElement elementThing1Ref = new XmlSchemaElement(); sequence.Items.Add(elementThing1Ref); elementThing1Ref.RefName = new XmlQualifiedName("thing1"); // <xs:element ref="thing2"/> XmlSchemaElement elementThing2Ref = new XmlSchemaElement(); sequence.Items.Add(elementThing2Ref); elementThing2Ref.RefName = new XmlQualifiedName("thing2"); // <xs:element ref="thing3"/> XmlSchemaElement elementThing3Ref = new XmlSchemaElement(); sequence.Items.Add(elementThing3Ref); elementThing3Ref.RefName = new XmlQualifiedName("thing3"); // <xs:complexType name="myComplexType"> XmlSchemaComplexType myComplexType = new XmlSchemaComplexType(); schema.Items.Add(myComplexType); myComplexType.Name = "myComplexType"; // <xs:group ref="myGroupOfThings"/> XmlSchemaGroupRef myGroupOfThingsRef = new XmlSchemaGroupRef(); myComplexType.Particle = myGroupOfThingsRef; myGroupOfThingsRef.RefName = new XmlQualifiedName("myGroupOfThings"); // <xs:attribute ref="myAttribute"/> XmlSchemaAttribute myAttributeRef = new XmlSchemaAttribute(); myComplexType.Attributes.Add(myAttributeRef); myAttributeRef.RefName = new XmlQualifiedName("myAttribute"); XmlSchemaSet schemaSet = new XmlSchemaSet(); schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallbackOne); schemaSet.Add(schema); schemaSet.Compile(); XmlSchema compiledSchema = null; foreach (XmlSchema schema1 in schemaSet.Schemas()) { compiledSchema = schema1; } XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable()); nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema"); compiledSchema.Write(Console.Out, nsmgr); } public static void ValidationCallbackOne(object sender, ValidationEventArgs args) { Console.WriteLine(args.Message); } }
The following XML file is generated for the preceding code example.
<?xml version="1.0" encoding="IBM437"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="thing1" type="xs:string"/> <xs:element name="thing2" type="xs:string"/> <xs:element name="thing3" type="xs:string"/> <xs:attribute name="myAttribute" type="xs:decimal"/> <xs:group name="myGroupOfThings"> <xs:sequence> <xs:element ref="thing1"/> <xs:element ref="thing2"/> <xs:element ref="thing3"/> </xs:sequence> </xs:group> <xs:complexType name="myComplexType"> <xs:group ref="myGroupOfThings"/> <xs:attribute ref="myAttribute"/> </xs:complexType> </xs:schema>
Available since 1.1
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


