using System;
using System.Collections.Generic;
using DevExpress.XtraEditors.Controls;
using DevExpress.XtraEditors.Repository;

namespace SiwiFms.Helper
{
    public sealed class ColumnEditEx : RepositoryItemLookUpEdit
    {
        public ColumnEditEx()
        {
        }

        /// <summary>
        /// </summary>
        /// <param name="source">数据源</param>
        /// <param name="value">值字段</param>
        /// <param name="displayName">显示字段</param>
        /// <param name="columns">需要显示的列</param>
        /// <param name="nullText">空值</param>
        /// <param name="autoSearchColumnIndex">以该列作为筛选</param>
        /// <param name="textEditStyles">文本编辑模式</param>
        /// <param name="searchMode">搜索模式</param>
        public ColumnEditEx(object source, string value = "", string displayName = "",
            IEnumerable<string> columns = null, string nullText = "", int autoSearchColumnIndex = 0,
            TextEditStyles textEditStyles = TextEditStyles.Standard, SearchMode searchMode = SearchMode.OnlyInPopup)
        {
            if (source.GetType().BaseType == typeof (Enum))
            {
                value = "Key";
                displayName = "Value";
                columns = new[] {"Value", "Key"};
                source = EnumUtil.EnumToDictionary(source.GetType());
            }

            DataSource = source;
            DisplayMember = displayName;
            ValueMember = value;
            if (columns != null)
            {
                Columns.Clear();

                foreach (string column in columns)
                {
                    Columns.Add(new LookUpColumnInfo(column));
                }
            }
            AutoSearchColumnIndex = autoSearchColumnIndex;
            NullText = nullText;
            TextEditStyle = textEditStyles; //要使用户可以输入，这里须设为Standard
            SearchMode = searchMode; //自动过滤掉不需要显示的数据，可以根据需要变化
        }
    }
}