ValidationContext 建構函式

定義

命名空間:: System.ComponentModel.DataAnnotations

組件:: System.ComponentModel.Annotations.dll, System.ComponentModel.DataAnnotations.dll

組件:: System.ComponentModel.Annotations.dll

組件:: System.ComponentModel.DataAnnotations.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

初始化 ValidationContext 類別的新執行個體。

多載

名稱	Description
ValidationContext(Object)	使用指定的物件實例初始化該 ValidationContext 類別的新實例。
ValidationContext(Object, IDictionary<Object,Object>)	使用指定的物件和可選的屬性袋初始化該類別的新實例 ValidationContext 。
ValidationContext(Object, IServiceProvider, IDictionary<Object,Object>)	利用服務提供者與服務使用者字典初始化該 ValidationContext 類別的新實例。
ValidationContext(Object, String, IServiceProvider, IDictionary<Object,Object>)	為給定物件實例構造一個 ValidationContext 包含 `displayName`、、可選 `serviceProvider`性、及可選屬性袋的 `items`。

ValidationContext(Object)

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

使用指定的物件實例初始化該 ValidationContext 類別的新實例。

public:
 ValidationContext(System::Object ^ instance);

public ValidationContext(object instance);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")]
public ValidationContext(object instance);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")]
public ValidationContext(object instance);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")]
public ValidationContext(object instance);

new System.ComponentModel.DataAnnotations.ValidationContext : obj -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj -> System.ComponentModel.DataAnnotations.ValidationContext

Public Sub New (instance As Object)

參數

instance: Object

要驗證物件實例。它不能 null。

屬性: RequiresUnreferencedCodeAttribute

例外狀況

ArgumentNullException

instance 是 null。

適用於

ValidationContext(Object, IDictionary<Object,Object>)

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

使用指定的物件和可選的屬性袋初始化該類別的新實例 ValidationContext 。

public:
 ValidationContext(System::Object ^ instance, System::Collections::Generic::IDictionary<System::Object ^, System::Object ^> ^ items);

public ValidationContext(object instance, System.Collections.Generic.IDictionary<object,object> items);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")]
public ValidationContext(object instance, System.Collections.Generic.IDictionary<object,object?>? items);

public ValidationContext(object instance, System.Collections.Generic.IDictionary<object,object?>? items);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")]
public ValidationContext(object instance, System.Collections.Generic.IDictionary<object,object?>? items);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")]
public ValidationContext(object instance, System.Collections.Generic.IDictionary<object,object?>? items);

new System.ComponentModel.DataAnnotations.ValidationContext : obj * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

Public Sub New (instance As Object, items As IDictionary(Of Object, Object))

參數

instance: Object

要驗證物件實例。它不能 null。

items: IDictionary<Object,Object>

一組可選的鍵值對，供消費者使用。

屬性: RequiresUnreferencedCodeAttribute

例外狀況

ArgumentNullException

instance 是 null。

備註

若 items 為， null則會建立一個空字典。若 items 非空，鍵值對集合會被複製到新的字典中，防止使用者修改原始字典。

適用於

ValidationContext(Object, IServiceProvider, IDictionary<Object,Object>)

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

來源:: ValidationContext.cs

利用服務提供者與服務使用者字典初始化該 ValidationContext 類別的新實例。

public:
 ValidationContext(System::Object ^ instance, IServiceProvider ^ serviceProvider, System::Collections::Generic::IDictionary<System::Object ^, System::Object ^> ^ items);

public ValidationContext(object instance, IServiceProvider serviceProvider, System.Collections.Generic.IDictionary<object,object> items);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")]
public ValidationContext(object instance, IServiceProvider? serviceProvider, System.Collections.Generic.IDictionary<object,object?>? items);

public ValidationContext(object instance, IServiceProvider? serviceProvider, System.Collections.Generic.IDictionary<object,object?>? items);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")]
public ValidationContext(object instance, IServiceProvider? serviceProvider, System.Collections.Generic.IDictionary<object,object?>? items);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")]
public ValidationContext(object instance, IServiceProvider? serviceProvider, System.Collections.Generic.IDictionary<object,object?>? items);

new System.ComponentModel.DataAnnotations.ValidationContext : obj * IServiceProvider * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj * IServiceProvider * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj * IServiceProvider * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")>]
new System.ComponentModel.DataAnnotations.ValidationContext : obj * IServiceProvider * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

Public Sub New (instance As Object, serviceProvider As IServiceProvider, items As IDictionary(Of Object, Object))

參數

instance: Object

要驗證的對象。此為必要參數。

serviceProvider: IServiceProvider

實作 IServiceProvider 介面的物件。這是選擇性參數。

items: IDictionary<Object,Object>

一本鍵值對字典，供服務消費者使用。這是選擇性參數。

屬性: RequiresUnreferencedCodeAttribute

例外狀況

ArgumentNullException

instance 是 null。

備註

參數 serviceProvider 代表方法可用 GetService 來執行自訂驗證的服務。

若參數 items 為 null，則會建立一個空字典。若參數不 null符，則該鍵值對集合會被複製到新的字典中，防止服務使用者修改原始字典。

適用於

ValidationContext(Object, String, IServiceProvider, IDictionary<Object,Object>)

來源:: ValidationContext.cs

來源:: ValidationContext.cs

為給定物件實例構造一個 ValidationContext 包含 displayName、、可選 serviceProvider性、及可選屬性袋的 items。

public:
 ValidationContext(System::Object ^ instance, System::String ^ displayName, IServiceProvider ^ serviceProvider, System::Collections::Generic::IDictionary<System::Object ^, System::Object ^> ^ items);

public ValidationContext(object instance, string displayName, IServiceProvider? serviceProvider, System.Collections.Generic.IDictionary<object,object?>? items);

new System.ComponentModel.DataAnnotations.ValidationContext : obj * string * IServiceProvider * System.Collections.Generic.IDictionary<obj, obj> -> System.ComponentModel.DataAnnotations.ValidationContext

Public Sub New (instance As Object, displayName As String, serviceProvider As IServiceProvider, items As IDictionary(Of Object, Object))

參數

instance: Object

物件實例正在驗證。它不能 null。

displayName: String

與物件實例相關的顯示名稱。

serviceProvider: IServiceProvider

可選 IServiceProvider 在被叫到時使用 GetService(Type) 。

若為 null， GetService(Type) 則將永遠返回 null。

items: IDictionary<Object,Object>

可選的鍵值對集合，透過提供給消費者 Items。

若 null，則會建立一個空字典。若不符合 null，該鍵/值對集合將被複製到新的字典中，防止消費者修改原始字典。

例外狀況

ArgumentNullException

當 instance 是 null

備註

此建構器是修飾安全的，因為它不使用反射來解析的 instance 類型，支援設定 DisplayName。

適用於

意見反應

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