ExportOptions Class

Definition

public ref class ExportOptions

public class ExportOptions

type ExportOptions = class

Public Class ExportOptions

Inheritance

Object

ExportOptions

Examples

The following example creates an instance of the ExportOptions class and adds a type (Possessions) to the collection returned by the KnownTypes property.

The XsdDataContractExporter then exports the schemas of the types, including the Possessions type added to the collection.

using System;
using System.Xml;
using System.Runtime.Serialization;
using System.Xml.Schema;

public class Program
{
    public static void Main()
    {
        try
        {
            ExportXSD();
        }
        catch (Exception exc)
        {
            Console.WriteLine("Message: {0} StackTrace:{1}", exc.Message, exc.StackTrace);
        }
        finally
        {
            Console.ReadLine();
        }
    }

    static void ExportXSD()
    {
        XsdDataContractExporter exporter = new XsdDataContractExporter();
        if (exporter.CanExport(typeof(Employee)))
        {
            exporter.Export(typeof(Employee));
            Console.WriteLine("number of schemas: {0}", exporter.Schemas.Count);
            Console.WriteLine();
            XmlSchemaSet mySchemas = exporter.Schemas;

            XmlQualifiedName XmlNameValue = exporter.GetRootElementName(typeof(Employee));
            string EmployeeNameSpace = XmlNameValue.Namespace;

            foreach (XmlSchema schema in mySchemas.Schemas(EmployeeNameSpace))
            {
                schema.Write(Console.Out);
            }
        }
    }

    static void GetXmlElementName()
    {
        XsdDataContractExporter myExporter = new XsdDataContractExporter();
        XmlQualifiedName xmlElementName =myExporter.GetRootElementName(typeof(Employee));
        Console.WriteLine("Namespace: {0}", xmlElementName.Namespace);
        Console.WriteLine("Name: {0}", xmlElementName.Name);
        Console.WriteLine("IsEmpty: {0}", xmlElementName.IsEmpty);
    }

    [DataContract(Namespace = "www.Contoso.com/Examples/")]
    public class Employee
    {
        [DataMember]
        public string EmployeeName;
        [DataMember]
        private string ID;
    }
}

Imports System.Collections
Imports System.Xml
Imports System.Runtime.Serialization
Imports System.Xml.Schema

Public Class Program
    Public Shared Sub Main() 
        Try
            ExportXSD()
        Catch exc As Exception
            Console.WriteLine("Message: {0} StackTrace:{1}", exc.Message, exc.StackTrace)
        Finally
            Console.ReadLine()
        End Try
    
    End Sub 
    
    
    Shared Sub ExportXSD() 

        Dim exporter As New XsdDataContractExporter()

        ' Use the ExportOptions to add the Possessions type to the 
        ' collection of KnownTypes. 
        Dim eOptions As New ExportOptions()
        eOptions.KnownTypes.Add(GetType(Possessions))        
        exporter.Options = eOptions

        If exporter.CanExport(GetType(Employee)) Then
            exporter.Export(GetType(Employee))
            Console.WriteLine("number of schemas: {0}", exporter.Schemas.Count)
            Console.WriteLine()
            Dim mySchemas As XmlSchemaSet = exporter.Schemas
            
            Dim XmlNameValue As XmlQualifiedName = _
               exporter.GetRootElementName(GetType(Employee))
            Dim EmployeeNameSpace As String = XmlNameValue.Namespace
            
            Dim schema As XmlSchema
            For Each schema In  mySchemas.Schemas(EmployeeNameSpace)
                schema.Write(Console.Out)
            Next schema
        End If
    
    End Sub 
    
    
    Shared Sub GetXmlElementName() 
        Dim myExporter As New XsdDataContractExporter()
        Dim xmlElementName As XmlQualifiedName = myExporter. _
            GetRootElementName(GetType(Employee))
        Console.WriteLine("Namespace: {0}", xmlElementName.Namespace)
        Console.WriteLine("Name: {0}", xmlElementName.Name)
        Console.WriteLine("IsEmpty: {0}", xmlElementName.IsEmpty)
    
    End Sub 
    
    <DataContract([Namespace] := "www.Contoso.com/Examples/")>  _
    Public Class Employee

        <DataMember()>  _
        Public EmployeeName As String
        <DataMember()>  _
        Private ID As String
        ' This member may return a Possessions type.
        <DataMember> _
        public Miscellaneous As Hashtable 

    End Class 

    <DataContract> _
    Public Class Possessions

        <DataMember> _
        Public ItemName As String
    End Class

End Class

Remarks

The XsdDataContractExporter is used to generate XSD schemas from a type or assembly. You can also use the XsdDataContractImporter to generate .NET Framework code from a schema document.

For more information about importing and exporting schemas, see Schema Import and Export and Exporting Schemas from Classes.

The KnownTypes property is used by the DataContractSerializer to include types that can be read in an object graph. For more information about the data contract and known types, see Data Contract Known Types.

For more information about data contracts, see Using Data Contracts.

Constructors

Properties

Methods

Applies to

See also

• XsdDataContractImporter
• ExportOptions
• DataContractSerializer
• Schema Import and Export
• Importing Schema To Generate Classes
• Exporting Schemas From Classes
• Data Contract Known Types
• Using Data Contracts