Biegral Blog

1.执行sql前数据验证，如果失败抛出异常，验证失败信息，在注释方法中可以自定义

/// <summary>
/// 模型验证
/// </summary>
public bool IsValided<T>(T model) where T : class
{
    DbEntityValidationResult vResult = Context.Entry<T>(model).GetValidationResult();
    if (vResult == null)
        return true;
    if (vResult.IsValid)
        return true;
    StringBuilder builder = new StringBuilder();
    foreach (DbValidationError item in vResult.ValidationErrors)
    {
        builder.Append("出错字段：" + item.PropertyName);
        builder.Append("<br/>");
        builder.Append("错误描述：" + item.ErrorMessage);
        builder.Append("<br />");
    }
    throw new Exception("数据验证失败，" + builder.ToString());
}

        [StringLength(32,ErrorMessage ="最大长度为32")]
        public string UpperCase32 { get; set; }