#region

using System;
using System.ComponentModel;
using System.Data;
using System.Windows.Forms;
using CSFrameworkV5.Core;
using DevExpress.XtraEditors.Controls;
using ItemCheckEventArgs = DevExpress.XtraEditors.Controls.ItemCheckEventArgs;

#endregion

namespace CSFrameworkV5.Library.UserControls
{
    /// <summary>
    ///     绑定带分隔符字符串的数据
    /// </summary>
    public partial class ucCheckedListBoxBinding : UserControl
    {
        private string _EditValue = "";

        private EventHandler _OnCheckStateChanged;
        private string _Seperator = ",";

        public ucCheckedListBoxBinding()
        {
            InitializeComponent();
        }

        [Description("返回列表中已勾选的值,以分隔符隔开。")]
        public string EditValue
        {
            get
            {
                _EditValue = GetItemCheckedValue();
                return _EditValue;
            }
            set
            {
                _EditValue = value;
                SetItemChecked(value);
            }
        }

        [DefaultValue(",")]
        [Description("多个值中间的分隔符.如:AA,BB,CC。")]
        public string ItemSeperator
        {
            get => _Seperator;
            set => _Seperator = value;
        }

        [Description("返回的文本。")]
        public override string Text
        {
            get => EditValue;
            set => EditValue = value;
        }

        /// <summary>
        ///     绑定数据源
        /// </summary>
        /// <param name="items"></param>
        public void BindingDataSource(string[] items)
        {
            foreach (var item in items)
                lists.Items.Add(item, item, CheckState.Unchecked, true);
        }

        /// <summary>
        ///     绑定数据源
        /// </summary>
        /// <param name="dataSource"></param>
        /// <param name="valueMember"></param>
        /// <param name="displayMember"></param>
        public void BindingDataSource(DataTable dataSource, string valueMember,
            string displayMember)
        {
            foreach (DataRow row in dataSource.Rows)
                lists.Items.Add(row[valueMember],
                    row[displayMember].ToStringEx(), CheckState.Unchecked,
                    true);
        }

        /// <summary>
        ///     获取所有已勾选项目的值，中间用分隔符分开
        /// </summary>
        /// <returns></returns>
        private string GetItemCheckedValue()
        {
            var result = "";
            foreach (CheckedListBoxItem item in lists.Items)
                if (item.CheckState == CheckState.Checked)
                    result = result + "," + item.Value;

            return result == "" ? "" : result + _Seperator;
        }

        private void lists_ItemCheck(object sender, ItemCheckEventArgs e)
        {
            if (_OnCheckStateChanged != null) _OnCheckStateChanged(lists, e);
        }

        private void lists_SelectedValueChanged(object sender, EventArgs e)
        {
            if (_OnCheckStateChanged != null) _OnCheckStateChanged(lists, e);
        }

        /// <summary>
        ///     当勾选状态改变时发生。
        /// </summary>
        [Description("当勾选状态改变时发生。")]
        public event EventHandler OnCheckStateChanged
        {
            add => _OnCheckStateChanged += value;
            remove => _OnCheckStateChanged -= value;
        }

        /// <summary>
        ///     设置指定项目为勾选状态
        /// </summary>
        /// <param name="value"></param>
        private void SetItemChecked(string value)
        {
            var items = value.Split(new[] { _Seperator },
                StringSplitOptions.None);

            lists.UnCheckAll();
            foreach (CheckedListBoxItem item in lists.Items)
            foreach (var s in items)
                if (s.ToLower() == item.Value.ToStringEx().ToLower())
                {
                    item.CheckState = CheckState.Checked;
                    break;
                }
        }
    }
}