Asp.net core 绑定动作参数模型时ValidationContext.set_DisplayName中的ArgumentNullException

将表单发布到.net core MVC操作时，我得到一个ArgumentNullException，其调用堆栈如下：

System.ComponentModel.DataAnnotations.ValidationContext.set_DisplayName(string value)
Microsoft.AspNetCore.Mvc.DataAnnotations.Internal.DataAnnotationsModelValidator.Validate(ModelValidationContext validationContext)
Microsoft.AspNetCore.Mvc.ModelBinding.Validation.ValidationVisitor.ValidateNode()
Microsoft.AspNetCore.Mvc.ModelBinding.Validation.ValidationVisitor.Visit(ModelMetadata metadata, string key, object model)
Microsoft.AspNetCore.Mvc.ModelBinding.Validation.ValidationVisitor.VisitChildren(IValidationStrategy strategy)
Microsoft.AspNetCore.Mvc.ModelBinding.Validation.ValidationVisitor.VisitComplexType(IValidationStrategy defaultStrategy)
Microsoft.AspNetCore.Mvc.ModelBinding.Validation.ValidationVisitor.Visit(ModelMetadata metadata, string key, object model)
Microsoft.AspNetCore.Mvc.ModelBinding.ObjectModelValidator.Validate(ActionContext actionContext, ValidationStateDictionary validationState, string prefix, object model)

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问题是其中一个模型属性具有

[Display（Name=”“）]

属性。空字符串导致活页夹代码中出现此异常。替换为

[Display（Name=”“）]

（用空格代替空字符串）解决了这个问题