XsdDataContractImporter 类
定义
重要
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用于将一组 XML 架构文件 (.xsd) 转换为公共语言运行库 (CLR) 类型。
public ref class XsdDataContractImporter
public class XsdDataContractImporter
type XsdDataContractImporter = class
Public Class XsdDataContractImporter
- 继承
-
XsdDataContractImporter
示例
下面的示例创建了一个 XmlSchemaSet,并调用 Import 方法来创建一个 CodeCompileUnit。 然后,使用 CodeCompileUnit 来创建 Visual C# 和 Visual Basic 代码文件。
using System;
using System.CodeDom.Compiler;
using System.CodeDom;
using System.Runtime.Serialization;
using System.IO;
using System.Xml;
using System.Xml.Schema;
using System.Globalization;
namespace XsdContractImporterExample
{
class Program
{
static void Main(string[] args)
{
try
{
XmlSchemaSet schemas = Export();
CodeCompileUnit ccu = Import(schemas);
CompileCode(ccu, "Person.cs");
CompileCode(ccu, "Person.vb");
}
catch (Exception exc)
{
Console.WriteLine("{0}: {1}", exc.Message, exc.StackTrace);
}
finally
{
Console.WriteLine("Press <Enter> to end....");
Console.ReadLine();
}
}
static XmlSchemaSet Export()
{
XsdDataContractExporter ex = new XsdDataContractExporter();
ex.Export(typeof(Person));
return ex.Schemas;
}
static CodeCompileUnit Import(XmlSchemaSet schemas)
{
XsdDataContractImporter imp = new XsdDataContractImporter();
// The EnableDataBinding option adds a RaisePropertyChanged method to
// the generated code. The GenerateInternal causes code access to be
// set to internal.
ImportOptions iOptions = new ImportOptions();
iOptions.EnableDataBinding = true;
iOptions.GenerateInternal = true;
imp.Options = iOptions;
if (imp.CanImport(schemas))
{
imp.Import(schemas);
return imp.CodeCompileUnit;
}
else
{
return null;
}
}
static void CompileCode(CodeCompileUnit ccu, string sourceName)
{
CodeDomProvider provider = null;
FileInfo sourceFile = new FileInfo(sourceName);
// Select the code provider based on the input file extension, either C# or Visual Basic.
if (sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) == ".CS")
{
provider = new Microsoft.CSharp.CSharpCodeProvider();
}
else if (sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) == ".VB")
{
provider = new Microsoft.VisualBasic.VBCodeProvider();
}
else
{
Console.WriteLine("Source file must have a .cs or .vb extension");
}
if (provider != null)
{
CodeGeneratorOptions options = new CodeGeneratorOptions();
// Set code formatting options to your preference.
options.BlankLinesBetweenMembers = true;
options.BracingStyle = "C";
StreamWriter sw = new StreamWriter(sourceName);
provider.GenerateCodeFromCompileUnit(ccu, sw, options);
sw.Close();
}
}
}
[DataContract]
public class Person
{
[DataMember]
public string FirstName;
[DataMember]
public string LastName;
public Person(string newFName, string newLName)
{
FirstName = newFName;
LastName = newLName;
}
}
}
Imports System.CodeDom.Compiler
Imports System.CodeDom
Imports System.Runtime.Serialization
Imports System.IO
Imports System.Xml
Imports System.Xml.Schema
Imports System.Globalization
Class Program
Shared Sub Main(ByVal args() As String)
Try
Dim schemas As XmlSchemaSet = Export()
Dim ccu As CodeCompileUnit = Import(schemas)
CompileCode(ccu, "Person.cs")
CompileCode(ccu, "Person.vb")
Catch exc As Exception
Console.WriteLine("{0}: {1}", exc.Message, exc.StackTrace)
Finally
Console.WriteLine("Press <Enter> to end....")
Console.ReadLine()
End Try
End Sub
Shared Function Export() As XmlSchemaSet
Dim ex As New XsdDataContractExporter()
ex.Export(GetType(Person))
Return ex.Schemas
End Function
Shared Function Import(ByVal schemas As XmlSchemaSet) As CodeCompileUnit
Dim imp As New XsdDataContractImporter()
' The EnableDataBinding option adds a RaisePropertyChanged method to
' the generated code. The GenerateInternal causes code access to be
' set to internal.
Dim iOptions As New ImportOptions()
iOptions.EnableDataBinding = true
iOptions.GenerateInternal = true
imp.Options = IOptions
If imp.CanImport(schemas) Then
imp.Import(schemas)
Return imp.CodeCompileUnit
Else
Return Nothing
End If
End Function
Shared Sub CompileCode(ByVal ccu As CodeCompileUnit, ByVal sourceName As String)
Dim provider As CodeDomProvider = Nothing
Dim sourceFile As New FileInfo(sourceName)
' Select the code provider based on the input file extension, either C# or Visual Basic.
If sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) = ".CS" Then
provider = New Microsoft.CSharp.CSharpCodeProvider()
ElseIf sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) = ".VB" Then
provider = New Microsoft.VisualBasic.VBCodeProvider()
Else
Console.WriteLine("Source file must have a .cs or .vb extension")
End If
If Not (provider Is Nothing) Then
Dim options As New CodeGeneratorOptions()
' Set code formatting options to your preference.
options.BlankLinesBetweenMembers = True
options.BracingStyle = "C"
Dim sw As New StreamWriter(sourceName)
provider.GenerateCodeFromCompileUnit(ccu, sw, options)
sw.Close()
End If
End Sub
End Class
<DataContract()> _
Public Class Person
<DataMember()> _
Public FirstName As String
<DataMember()> _
Public LastName As String
Public Sub New(ByVal newFName As String, ByVal newLName As String)
FirstName = newFName
LastName = newLName
End Sub
End Class
注解
如果所创建的 Web 服务必须与现有 Web 服务交互操作,或者要从 XML 架构创建数据协定类型,请使用 XsdDataContractImporter。 XsdDataContractImporter将转换一组 XML 架构,并创建以所选编程语言表示数据协定的.NET Framework类型。 若要创建代码,请使用 System.CodeDom 命名空间中的类。
反过来,在已创建的 Web 服务包含由 CLR 类型表示的数据时,以及在需要为其他 Web 服务将使用的每个数据类型导出 XML 架构时,请使用 XsdDataContractExporter 类。 也就是说,XsdDataContractExporter 能够将一组 CLR 类型转换成一组 XML 架构。
注意
若要在设计时从 XML 架构生成 CLR 类型,请使用 ServiceModel 元数据实用工具 (Svcutil.exe) 。 若要从 XSD 文件生成代码,请使用 /dataContractOnly
工具的 开关。 此外,如果需要对进程进行更多控制或者需要以编程方式执行此操作,还可以使用 XsdDataContractImporter。
构造函数
XsdDataContractImporter() |
初始化 XsdDataContractImporter 类的新实例。 |
XsdDataContractImporter(CodeCompileUnit) |
使用将用于生成 CLR 代码的 XsdDataContractImporter 初始化 CodeCompileUnit 类的新实例。 |
属性
CodeCompileUnit |
获取一个用于存储已生成的 CLR 类型的 CodeCompileUnit。 |
Options |
获取或设置一个 ImportOptions,它包含导入操作的可设置选项。 |
方法
适用于
另请参阅
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