/// <summary>
/// 获取对象的某一项属性错误
/// </summary>
/// <param name="obj">待校验的对象</param>
/// <param name="propertyName">待校验的属性名</param>
/// <param name="validator">FluentValidation验证器</param>
/// <returns>错误信息</returns>
public static ValidationResult GetPropertyErrorMsg(object obj, string propertyName, IValidator validator = null)
{
if (string.IsNullOrWhiteSpace(propertyName) || obj == null)
{
return(new ValidationResult(string.Empty));
}
if (validator != null)
{
var context = new ValidationContext(obj, null, new MemberNameValidatorSelector(new[] { propertyName }));
var result = validator.Validate(context);
var error = result.Errors.FirstOrDefault(x => x.PropertyName.Equals(propertyName))?.ErrorMessage;
if (!string.IsNullOrEmpty(error))
{
return(new ValidationResult(error));
}
}
var vc = new System.ComponentModel.DataAnnotations.ValidationContext(obj, null, null)
{
MemberName = propertyName
};
var res = new List <ValidationResult>();
Validator.TryValidateProperty(obj.GetType().GetProperty(propertyName)?.GetValue(obj, null), vc, res);
if (res.Any())
{
return(new ValidationResult(string.Join(Environment.NewLine,
res.Select(r => r.ErrorMessage).ToArray())));
}
return(new ValidationResult(string.Empty));
}
/// <summary>
/// 获取对象的整体错误信息
/// </summary>
/// <param name="obj">待校验的对象</param>
/// <param name="validator">FluentValidation验证器</param>
/// <returns>错误信息</returns>
public static ValidationResult GetErrorMsg(object obj, IValidator validator = null)
{
if (validator != null)
{
var result = validator.Validate(obj);
if (result.Errors.Any())
{
return(new ValidationResult(result.Errors.First().ErrorMessage));
}
}
if (obj != null)
{
var properties = obj.GetType().GetProperties();
foreach (var propertyInfo in properties)
{
var validationAttribute = propertyInfo.GetCustomAttribute(typeof(ValidationAttribute));
if (validationAttribute != null)
{
var vc = new System.ComponentModel.DataAnnotations.ValidationContext(obj, null, null)
{
MemberName = propertyInfo.Name
};
var res = new List <ValidationResult>();
Validator.TryValidateProperty(obj.GetType().GetProperty(propertyInfo.Name)?.GetValue(obj, null),
vc, res);
if (res.Count > 0)
{
return(new ValidationResult(string.Join(Environment.NewLine,
res.Select(r => r.ErrorMessage).ToArray())));
}
}
}
}
return(new ValidationResult(string.Empty));
}
public IEnumerable <System.ComponentModel.DataAnnotations.ValidationResult> Validate(System.ComponentModel.DataAnnotations.ValidationContext validationContext)
{
yield return(new System.ComponentModel.DataAnnotations.ValidationResult("Fail", new[] { "Name2" }));
}