枚举转换为字符串

Question

我创建了Enum of Leave Reason,现在我想将其转换为字符串,但错误出现了.

实际上我想使用数据集在网格视图中绑定数据,我正在为此目的分层工作.

我知道我的问题的答案将是单行,但我没有从不同的网站找到确切的解决方案,这就是为什么决定在这里问

请帮助因为我是新的c#

这是自定义类型层中的枚举类:

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

namespace Sherserve.CustomTypeLayer
{
    public enum LeaveReason
    {
        Sick,
        Planned,
        Other
    }
}

最后这里是业务逻辑层:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Sherserve.DataAccessLayer;
using Sherserve.CustomTypeLayer;
using System.Data;

namespace Sherserve.BusinessLogicLayer
{
    public class LMSManager
    {

        LMSRepository objLMSRepository = new LMSRepository();

        public void EmployeeLeave(EmployeeLeave LeaveInsert)
        {
            objLMSRepository.InsertLeave(LeaveInsert);
        }

        public List<CustomTypeLayer.EmployeeLeave> GetLeaveRecord(int emplid)
        {

            DataSet ds = objLMSRepository.GetLeaveRecord(emplid);
            List<EmployeeLeave> leavelist = new List<EmployeeLeave>();
            if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)
            {
                for (int a; a < ds.Tables[0].Rows.Count; a++)
                {

                    DataRow dr = ds.Tables[0].Rows[a];
                    EmployeeLeave leave = new EmployeeLeave();
                    leave.DateFrom = Convert.ToDateTime(dr["dt_from"]);
                    leave.DateTo = Convert.ToDateTime(dr["dt_to"]);
                    leave.EmployeeId = Convert.ToInt32(dr["EmployeeID"]);
                    leave.Reason = Convert.ToString(dr["txt_reason"]);
                    //leave.LeaveType = Convert.ToString(dr["id_leave_type"]);
                    leavelist.Add(leave);
                }
            }
            return leavelist;
        }
    }
}

你可以在业务逻辑层看到我评论过的

leave.LeaveType = Convert.ToString(dr["id_leave_type"]);

实际上LeaveType是枚举,现在我想将它转换为字符串,所以不应出现任何错误....

Answer 1

使用Enum.Parse(Type,String,Boolean ignoreCase)或Enum.Parse(Type,String)方法.

leave.LeaveType=(LeaveReason)Enum.Parse(typeof(LeaveReason),
                                         dr["id_leave_type"].ToString(),true);