using System;
using System.Collections.Generic;
using System.Text;

namespace Appointment.Entity.ValidateAttribute
{
    /// <summary>
    /// 必填项
    /// </summary>
    /// <remarks>
    /// Add:yuangb 2019-3-11
    /// [StringRequired(ErrorMessage ="状态不能为空")]
    /// </remarks>
    public class StringRequiredAttribute : ValidateAttribute
    {
        /// <summary>
        /// 报错提示信息
        /// </summary>
        public string ErrorMessage { get; set; }

        public override string Validate(object oValue)
        {
            if (oValue == null || string.IsNullOrWhiteSpace(oValue.ToString()))
            {
                return ErrorMessage;
            }
            else
            {
                return null;
            }
        }
    }
}