IMEX.mes.wcf/DK.Basics/BaseControls/UserControls/DKCheckBoxComboBox/DKCheckedListBoxComboBox.cs

/*******************************************************************************
 * Copyright(c) 2014 DongkeSoft All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：DKCheckedListBoxComboBox.cs
 *      2.功能描述：下拉列表控件：可以多项选择
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      陈晓野          2014/09/04          1.00            新建
 *******************************************************************************/

using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace Dongke.IBOSS.PRD.Basics.BaseControls
{
    /// <summary>
    /// 下拉列表控件：可以多项选择
    /// </summary>
    public partial class DKCheckedListBoxComboBox : PopupComboBox
    {
        #region 委托声明
        #endregion

        #region 事件声明

        #endregion

        #region 常量
        #endregion

        #region 成员变量

        /// <summary>
        /// 多选控件
        /// </summary>
        private C_CheckedListBoxEx _checkedListBox;

        #endregion

        #region 构造函数

        /// <summary>
        /// 构造函数
        /// </summary>
        public DKCheckedListBoxComboBox() : base()
        {
            InitializeComponent();

            this._checkedListBox = new C_CheckedListBoxEx();
            ListControlContainer containerControl = new ListControlContainer();
            containerControl.Controls.Add(_checkedListBox);
            containerControl.Padding = new Padding(0, 0, 0, 12);
            this._checkedListBox.Dock = DockStyle.Fill;
            this._checkedListBox.IntegralHeight = false;
            this.DropDownControl = containerControl;
            this.dropDown.Resizable = true;

            this._checkedListBox.ItemChecked += CheckedListBox_ItemChecked;
            this.dropDown.Opening += dropDown_Opening;
        }

        #endregion

        #region 单例模式
        #endregion

        #region 属性
        
        /// <summary>
        /// 获取或设置控件的数据源
        /// </summary>
        public new object DataSource
        {
            get
            {
                return this._checkedListBox.DataSource;
            }
            set
            {
                this._checkedListBox.DataSource = value;
            }
        }

        /// <summary>
        /// 获取或设置一个字符串，该字符串指定要显示其内容的列表框中所含对象的属性
        /// </summary>
        public new string DisplayMember
        {
            get
            {
                return this._checkedListBox.DisplayMember;
            }
            set
            {
                this._checkedListBox.DisplayMember = value;
            }
        }

        /// <summary>
        /// 获取或设置一个字符串，该字符串指定要从中取值的数据源的属性
        /// </summary>
        public new string ValueMember
        {
            get
            {
                return this._checkedListBox.ValueMember;
            }
            set
            {
                this._checkedListBox.ValueMember = value;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        [Browsable(true)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
        public new CheckedListBox.ObjectCollection Items
        {
            get
            {
                return this._checkedListBox.Items;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        [Browsable(true)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
        public C_CheckedListBoxEx CheckedListBox
        {
            get
            {
                return this._checkedListBox;
            }
        }

        public new string Text
        {
            get
            {
                return base.Text;
            }
        }

        #endregion

        #region 事件处理

        private void CheckedListBox_ItemChecked(object sender, ItemCheckEventArgs e)
        {
            base.Text = this._checkedListBox.GetCheckedText();
        }

        private void dropDown_Opening(object sender, CancelEventArgs e)
        {
            this._checkedListBox.ClearSelected();
        }

        #endregion

        #region 公有方法/函数

        #endregion

        #region 受保护方法/函数

        protected override void OnResize(EventArgs e)
        {
            // When the ComboBox is resized, the width of the dropdown 
            // is also resized to match the width of the ComboBox. I think it looks better.
            Size Size = new Size(Width, DropDownControl.Height);
            dropDown.Size = Size;
            base.OnResize(e);
        }

        protected override void OnKeyPress(KeyPressEventArgs e)
        {
            base.OnKeyPress(e);
            if (copy)
            {
                copy = false;
            }
            else
            {
                e.Handled = true;
            }
        }
        bool copy = false;
        protected override bool ProcessCmdKey(ref   Message msg, Keys keyData)
        {
            if (keyData == (Keys.Control | Keys.C))
            {
                copy = true;
                return base.ProcessCmdKey(ref msg, keyData);
            }
            else
            {
                copy = false;
                return base.ProcessCmdKey(ref msg, keyData);
            }
        }
        #endregion

        #region 私有方法/函数
        #endregion
    }
}