FluentValidation 一個Model多個驗證方式

.Net Core驗證方式FluentValidation通常都會用以下方式
新增一個Validator Class，撰寫驗證要輸入的欄位

public XXXValidator()
{      
  RuleFor(x => x.xxxfiled).NotEmpty().WithMessage("請輸入欄位");          
}

DI注入Service

services.AddTransient<IValidator<AAAViewModel>, XXXValidator>();         

然後前端驗證

FluentValidation.Results.ValidationResult vResult = this._xxxValidator.Validate(model);
if (!vResult.IsValid)
{
  throw new Exception(Function_ModelStateError.FormatToString(vResult));
}        

但是如果有另一個Service也是要用AAAViewModel但是驗證的欄位不一樣呢?
先新增一個Class如下

//來源https://stackoverflow.com/questions/11607476/two-validators-for-one-model
public static class ValidationExtensions
{
     public static FluentValidation.Results.ValidationResult ValidateModel<TModel, TValidator>(this TModel model, TValidator validator, ModelStateDictionary modelState)
         where TModel : class
         where TValidator : AbstractValidator<TModel>
     {
         var result = validator.Validate(model);
         return result;
     }
}

新增另一個Validator Class，撰寫驗證要輸入的欄位

public YYYValidator()
{      
  RuleFor(x => x.yyyfiled).NotEmpty().WithMessage("請輸入欄位");          
}

DI注入另一個Service

services.AddTransient<IValidator<AAAViewModel>, YYYValidator>();         

然後前端驗證

FluentValidation.Results.ValidationResult vResult = model.ValidateModel(new YYYValidator(), ModelState);//修改這
if (!vResult.IsValid)
{
  throw new Exception(Function_ModelStateError.FormatToString(vResult));
}        

參考來源
Two Validators for one Models