ContractBasedImportDefinition 构造函数

定义

命名空间:: System.ComponentModel.Composition.Primitives

程序集:: System.ComponentModel.Composition.dll

包:: System.ComponentModel.Composition v11.0.0-preview.4.26230.115

重要

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初始化 ContractBasedImportDefinition 类的新实例。

重载

名称	说明
ContractBasedImportDefinition()	初始化 ContractBasedImportDefinition 类的新实例。
ContractBasedImportDefinition(String, String, IEnumerable<KeyValuePair<String,Type>>, ImportCardinality, Boolean, Boolean, CreationPolicy)	使用指定的协定名称、所需的类型标识、所需的元数据、基数和创建策略初始化类的新实例 ContractBasedImportDefinition ，并指示导入定义是可重新编译还是先决条件。
ContractBasedImportDefinition(String, String, IEnumerable<KeyValuePair<String, Type>>, ImportCardinality, Boolean, Boolean, CreationPolicy, IDictionary<String, Object>)	使用指定的协定名称、所需的类型标识、必需和可选元数据、基数和创建策略初始化类的新实例 ContractBasedImportDefinition ，并指示导入定义是可重新编译还是先决条件。

ContractBasedImportDefinition()

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

初始化 ContractBasedImportDefinition 类的新实例。

protected:
 ContractBasedImportDefinition();

protected ContractBasedImportDefinition();

Protected Sub New ()

注解

向继承者记下

调用此构造函数的 ContractName派生类型可以选择重写、 RequiredTypeIdentity、 RequiredMetadata、 Cardinality、 IsPrerequisite、 IsRecomposable和 RequiredCreationPolicy 属性。

适用于

ContractBasedImportDefinition(String, String, IEnumerable<KeyValuePair<String,Type>>, ImportCardinality, Boolean, Boolean, CreationPolicy)

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

使用指定的协定名称、所需的类型标识、所需的元数据、基数和创建策略初始化类的新实例 ContractBasedImportDefinition ，并指示导入定义是可重新编译还是先决条件。

public:
 ContractBasedImportDefinition(System::String ^ contractName, System::String ^ requiredTypeIdentity, System::Collections::Generic::IEnumerable<System::Collections::Generic::KeyValuePair<System::String ^, Type ^>> ^ requiredMetadata, System::ComponentModel::Composition::Primitives::ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite, System::ComponentModel::Composition::CreationPolicy requiredCreationPolicy);

public ContractBasedImportDefinition(string contractName, string? requiredTypeIdentity, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<string,Type>>? requiredMetadata, System.ComponentModel.Composition.Primitives.ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite, System.ComponentModel.Composition.CreationPolicy requiredCreationPolicy);

public ContractBasedImportDefinition(string contractName, string requiredTypeIdentity, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<string,Type>> requiredMetadata, System.ComponentModel.Composition.Primitives.ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite, System.ComponentModel.Composition.CreationPolicy requiredCreationPolicy);

new System.ComponentModel.Composition.Primitives.ContractBasedImportDefinition : string * string * seq<System.Collections.Generic.KeyValuePair<string, Type>> * System.ComponentModel.Composition.Primitives.ImportCardinality * bool * bool * System.ComponentModel.Composition.CreationPolicy -> System.ComponentModel.Composition.Primitives.ContractBasedImportDefinition

Public Sub New (contractName As String, requiredTypeIdentity As String, requiredMetadata As IEnumerable(Of KeyValuePair(Of String, Type)), cardinality As ImportCardinality, isRecomposable As Boolean, isPrerequisite As Boolean, requiredCreationPolicy As CreationPolicy)

参数

contractName: String

导入定义所需的对象的协定名称 Export 。

requiredTypeIdentity: String

应为导出类型的类型标识。使用该方法 GetTypeIdentity(Type) 为给定类型生成类型标识。如果不需要特定类型，请使用 null。

requiredMetadata: IEnumerable<KeyValuePair<String,Type>>

包含导入定义所需的元数据名称和类型的键/值对的集合;或 null 将属性设置为 RequiredMetadata 空 IEnumerable<T> 集合。

cardinality: ImportCardinality

枚举值之一，指示导入定义所需的对象的基数 Export 。

isRecomposable: Boolean

如果指定导入定义可以在一个生存期内多次满足，则为 /&a; 。

isPrerequisite: Boolean

如果指定在开始生成导出的对象之前需要满足导入定义，则为 /&a0;否则为

requiredCreationPolicy: CreationPolicy

一个值，指示导入程序需要用于满足此导入的导出的特定创建策略。如果不需要特定的创建策略，则默认值为 Any。

例外

ArgumentNullException

contractName 是 null。

ArgumentException

contractName 是空字符串（“）。

-或-

requiredMetadata 包含一个元素，即 null.

-或-

cardinality 不是值 ImportCardinality 之一。

适用于

ContractBasedImportDefinition(String, String, IEnumerable<KeyValuePair<String, Type>>, ImportCardinality, Boolean, Boolean, CreationPolicy, IDictionary<String, Object>)

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

Source:: ContractBasedImportDefinition.cs

使用指定的协定名称、所需的类型标识、必需和可选元数据、基数和创建策略初始化类的新实例 ContractBasedImportDefinition ，并指示导入定义是可重新编译还是先决条件。

public:
 ContractBasedImportDefinition(System::String ^ contractName, System::String ^ requiredTypeIdentity, System::Collections::Generic::IEnumerable<System::Collections::Generic::KeyValuePair<System::String ^, Type ^>> ^ requiredMetadata, System::ComponentModel::Composition::Primitives::ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite, System::ComponentModel::Composition::CreationPolicy requiredCreationPolicy, System::Collections::Generic::IDictionary<System::String ^, System::Object ^> ^ metadata);

public ContractBasedImportDefinition(string contractName, string? requiredTypeIdentity, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<string,Type>>? requiredMetadata, System.ComponentModel.Composition.Primitives.ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite, System.ComponentModel.Composition.CreationPolicy requiredCreationPolicy, System.Collections.Generic.IDictionary<string,object?> metadata);

public ContractBasedImportDefinition(string contractName, string requiredTypeIdentity, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<string,Type>> requiredMetadata, System.ComponentModel.Composition.Primitives.ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite, System.ComponentModel.Composition.CreationPolicy requiredCreationPolicy, System.Collections.Generic.IDictionary<string,object> metadata);

new System.ComponentModel.Composition.Primitives.ContractBasedImportDefinition : string * string * seq<System.Collections.Generic.KeyValuePair<string, Type>> * System.ComponentModel.Composition.Primitives.ImportCardinality * bool * bool * System.ComponentModel.Composition.CreationPolicy * System.Collections.Generic.IDictionary<string, obj> -> System.ComponentModel.Composition.Primitives.ContractBasedImportDefinition

Public Sub New (contractName As String, requiredTypeIdentity As String, requiredMetadata As IEnumerable(Of KeyValuePair(Of String, Type)), cardinality As ImportCardinality, isRecomposable As Boolean, isPrerequisite As Boolean, requiredCreationPolicy As CreationPolicy, metadata As IDictionary(Of String, Object))