CodeDomSerializer 类
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
将对象图序列化为一系列 CodeDOM 语句。 此类为序列化程序提供抽象基类。
public ref class CodeDomSerializer abstractpublic ref class CodeDomSerializer : System::ComponentModel::Design::Serialization::CodeDomSerializerBasepublic abstract class CodeDomSerializerpublic class CodeDomSerializer : System.ComponentModel.Design.Serialization.CodeDomSerializerBasetype CodeDomSerializer = classtype CodeDomSerializer = class
inherit CodeDomSerializerBasePublic MustInherit Class CodeDomSerializerPublic Class CodeDomSerializer
Inherits CodeDomSerializerBase- 继承
-
CodeDomSerializer
- 继承
- 派生
示例
下面的代码示例演示如何创建派生自 CodeDomSerializer的自定义 CodeDOM 序列化程序。
#using <System.Drawing.dll>
#using <System.dll>
#using <System.Design.dll>
using namespace System;
using namespace System::CodeDom;
using namespace System::ComponentModel;
using namespace System::ComponentModel::Design;
using namespace System::ComponentModel::Design::Serialization;
using namespace System::Drawing;
using namespace System::Windows::Forms;
namespace CodeDomSerializerSample
{
ref class MyComponent;
private ref class MyCodeDomSerializer: public CodeDomSerializer
{
public:
Object^ Deserialize( IDesignerSerializationManager^ manager, Object^ codeObject ) new
{
// This is how we associate the component with the serializer.
CodeDomSerializer^ baseClassSerializer = (CodeDomSerializer^)(
manager->GetSerializer(
MyComponent::typeid->BaseType, CodeDomSerializer::typeid ));
/* This is the simplest case, in which the class just calls the base class
to do the work. */
return baseClassSerializer->Deserialize( manager, codeObject );
}
Object^ Serialize( IDesignerSerializationManager^ manager, Object^ value ) new
{
/* Associate the component with the serializer in the same manner as with
Deserialize */
CodeDomSerializer^ baseClassSerializer = (CodeDomSerializer^)(
manager->GetSerializer(
MyComponent::typeid->BaseType, CodeDomSerializer::typeid ));
Object^ codeObject = baseClassSerializer->Serialize( manager, value );
/* Anything could be in the codeObject. This sample operates on a
CodeStatementCollection. */
if ( (CodeStatementCollection^)(codeObject) )
{
CodeStatementCollection^ statements = (CodeStatementCollection^)(codeObject);
// The code statement collection is valid, so add a comment.
String^ commentText = "This comment was added to this object by a custom serializer.";
CodeCommentStatement^ comment = gcnew CodeCommentStatement( commentText );
statements->Insert( 0, comment );
}
return codeObject;
}
};
[DesignerSerializer(CodeDomSerializerSample::MyCodeDomSerializer::typeid,
CodeDomSerializer::typeid)]
public ref class MyComponent: public Component
{
private:
String^ localProperty;
public:
MyComponent()
{
localProperty = "Component Property Value";
}
property String^ LocalProperty
{
String^ get()
{
return localProperty;
}
void set( String^ value )
{
localProperty = value;
}
}
};
}
using System;
using System.CodeDom;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Drawing;
using System.Windows.Forms;
namespace CodeDomSerializerSample
{
internal class MyCodeDomSerializer : CodeDomSerializer {
public override object Deserialize(IDesignerSerializationManager manager, object codeObject) {
// This is how we associate the component with the serializer.
CodeDomSerializer baseClassSerializer = (CodeDomSerializer)manager.
GetSerializer(typeof(MyComponent).BaseType, typeof(CodeDomSerializer));
/* This is the simplest case, in which the class just calls the base class
to do the work. */
return baseClassSerializer.Deserialize(manager, codeObject);
}
public override object Serialize(IDesignerSerializationManager manager, object value) {
/* Associate the component with the serializer in the same manner as with
Deserialize */
CodeDomSerializer baseClassSerializer = (CodeDomSerializer)manager.
GetSerializer(typeof(MyComponent).BaseType, typeof(CodeDomSerializer));
object codeObject = baseClassSerializer.Serialize(manager, value);
/* Anything could be in the codeObject. This sample operates on a
CodeStatementCollection. */
if (codeObject is CodeStatementCollection) {
CodeStatementCollection statements = (CodeStatementCollection)codeObject;
// The code statement collection is valid, so add a comment.
string commentText = "This comment was added to this object by a custom serializer.";
CodeCommentStatement comment = new CodeCommentStatement(commentText);
statements.Insert(0, comment);
}
return codeObject;
}
}
[DesignerSerializer(typeof(MyCodeDomSerializer), typeof(CodeDomSerializer))]
public class MyComponent : Component {
private string localProperty = "Component Property Value";
public string LocalProperty {
get {
return localProperty;
}
set {
localProperty = value;
}
}
}
}
Imports System.CodeDom
Imports System.ComponentModel
Imports System.ComponentModel.Design
Imports System.ComponentModel.Design.Serialization
Imports System.Drawing
Imports System.Windows.Forms
Namespace CodeDomSerializerSample
Friend Class MyCodeDomSerializer
Inherits CodeDomSerializer
Public Overrides Function Deserialize(ByVal manager As IDesignerSerializationManager, _
ByVal codeObject As Object) As Object
' This is how we associate the component with the serializer.
Dim baseClassSerializer As CodeDomSerializer = CType(manager.GetSerializer( _
GetType(MyComponent).BaseType, GetType(CodeDomSerializer)), CodeDomSerializer)
' This is the simplest case, in which the class just calls the base class
' to do the work.
Return baseClassSerializer.Deserialize(manager, codeObject)
End Function 'Deserialize
Public Overrides Function Serialize(ByVal manager As IDesignerSerializationManager, _
ByVal value As Object) As Object
' Associate the component with the serializer in the same manner as with
' Deserialize
Dim baseClassSerializer As CodeDomSerializer = CType(manager.GetSerializer( _
GetType(MyComponent).BaseType, GetType(CodeDomSerializer)), CodeDomSerializer)
Dim codeObject As Object = baseClassSerializer.Serialize(manager, value)
' Anything could be in the codeObject. This sample operates on a
' CodeStatementCollection.
If TypeOf codeObject Is CodeStatementCollection Then
Dim statements As CodeStatementCollection = CType(codeObject, CodeStatementCollection)
' The code statement collection is valid, so add a comment.
Dim commentText As String = "This comment was added to this object by a custom serializer."
Dim comment As New CodeCommentStatement(commentText)
statements.Insert(0, comment)
End If
Return codeObject
End Function 'Serialize
End Class
<DesignerSerializer(GetType(MyCodeDomSerializer), GetType(CodeDomSerializer))> _
Public Class MyComponent
Inherits Component
Private localProperty As String = "Component Property Value"
Public Property LocalProp() As String
Get
Return localProperty
End Get
Set(ByVal Value As String)
localProperty = Value
End Set
End Property
End Class
End Namespace
注解
你可以实现自定义 CodeDomSerializer 来控制在设计时为某个类型的组件生成组件初始化代码。
若要实现类型的自定义 CodeDomSerializer ，必须：
定义派生自 CodeDomSerializer. 的类。
实现序列化或反序列化方法的方法替代。 （有关详细信息，请参阅以下信息。
使用 DesignerSerializerAttribute.. 将自定义CodeDomSerializer实现与组件类型相关联。
若要实现用于为组件生成配置代码的序列化方法，请执行以下操作：
在派生自 CodeDomSerializer的类中，重写基类的相应序列化或反序列化方法。
如果希望默认序列化程序生成执行默认组件配置的代码语句，则必须获取并调用组件的基本序列化程序。 若要获取组件的基序列化程序，请调用 GetSerializer 传递给方法重写的方法 IDesignerSerializationManager 。 GetSerializer传递组件类型以序列化其配置的方法，以及所请求的序列化程序的基类型，即CodeDomSerializer。 使用 IDesignerSerializationManager 传递给方法重写的对象调用在基本序列化程序上重写的相同名称的方法。 如果要实现 Serialize 该方法， Serialize 则基本序列化程序的方法将返回一个对象。 此对象的类型取决于基本序列化程序的类型，具体取决于要序列化其值的组件类型。 如果要实现SerializeEvents或SerializePropertiesSerializePropertiesToResources方法，则必须创建一个新CodeStatementCollection方法来包含生成的代码语句，并将其传递给该方法。
如果已调用基本序列化程序方法，将具有一个 CodeStatementCollection 包含要生成的语句来初始化组件。 否则应创建一个 CodeStatementCollection。 可以将表示语句的对象添加到 CodeStatement 此集合的组件配置代码中生成。
返回表示 CodeStatementCollection 要生成的源代码以配置组件。
实施者说明
从 CodeDomSerializer中继承时，必须重写以下成员： Deserialize(IDesignerSerializationManager, Object) 和 Serialize(IDesignerSerializationManager, Object)。
构造函数
| 名称 | 说明 |
|---|---|
| CodeDomSerializer() |
初始化 CodeDomSerializer 类的新实例。 |