FromServicesAttribute 类

定义

命名空间:

Microsoft.AspNetCore.Mvc

程序集:

Microsoft.AspNetCore.Mvc.Core.dll

包:

Microsoft.AspNetCore.App.Ref v8.0.0

Source:

FromServicesAttribute.cs

指定应使用请求服务绑定参数或属性。

public ref class FromServicesAttribute : Attribute, Microsoft::AspNetCore::Mvc::ModelBinding::IBindingSourceMetadata

[System.AttributeUsage(System.AttributeTargets.Parameter | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)]
public class FromServicesAttribute : Attribute, Microsoft.AspNetCore.Http.Metadata.IFromServiceMetadata, Microsoft.AspNetCore.Mvc.ModelBinding.IBindingSourceMetadata

[<System.AttributeUsage(System.AttributeTargets.Parameter | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)>]
type FromServicesAttribute = class
    inherit Attribute
    interface IBindingSourceMetadata
    interface IFromServiceMetadata

Public Class FromServicesAttribute
Inherits Attribute
Implements IBindingSourceMetadata, IFromServiceMetadata

继承

Attribute

FromServicesAttribute

属性

AttributeUsageAttribute

实现

IBindingSourceMetadata IFromServiceMetadata

示例

在此示例中，IProductModelRequestService 的实现注册为服务。 然后在 GetProduct 操作中， 参数绑定到从请求服务解析的 IProductModelRequestService 实例。

[HttpGet]
public ProductModel GetProduct([FromServices] IProductModelRequestService productModelRequest)
{
    return productModelRequest.Value;
}

构造函数

FromServicesAttribute()

指定应使用请求服务绑定参数或属性。

属性

BindingSource

获取 BindingSource。