IMEX.mes.wcf/DK.Basics/WFControls/11_Standard/00_Label/LblLabel.cs


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

namespace Dongke.WinForm.Controls
{
    /// <summary>
    /// 标准标签控件
    /// </summary>
    [ToolboxBitmap(typeof(Label))]
    public class LblLabel : Label, IDKControl, IMustInput
    {
        #region 成员变量
        /// <summary>
        /// 控件是否是必须输入项目
        /// </summary>
        private bool _mustInput = false;
        private bool _showMustInputAlert = true;
        #endregion

        #region 构造函数
        /// <summary>
        /// 标准标签控件
        /// </summary>
        public LblLabel()
        {
            this.BackColor = Color.Transparent;
            this.AutoSize = true;
        }
        #endregion

        #region 属性
        /// <summary>
        /// 获取或设置控件是否是必须输入项目
        /// </summary>
        [DefaultValue(false)]
        [Description("获取或设置控件是否是必须输入项目。"), Category("CustomerEx")]
        public bool MustInput
        {
            get
            {
                return this._mustInput;
            }
            set
            {
                if (this._mustInput != value)
                {
                    this._mustInput = value;
                    this.Invalidate();
                }
            }
        }
        #endregion

        #region 重写属性
        /// <summary>
        /// 获取或设置控件的前景色
        /// </summary>
        public override Color ForeColor
        {
            get
            {
                if (this._mustInput)
                {
                    return Constant.LABEL_FORECOLOR_MUSTINPUT;
                }
                return base.ForeColor;
            }
            //set
            //{
            //    //if (!this._mustInput)
            //    //{
            //    //    base.ForeColor = value;
            //    //}
            //}
        }

        /// <summary>
        /// 获取或设置一个值，该值指示是否自动调整控件的大小以完整显示其内容
        /// </summary>
        [DefaultValue(true)]
        public override bool AutoSize
        {
            get
            {
                return base.AutoSize;
            }
            set
            {
                base.AutoSize = value;
            }
        }

        /// <summary>
        /// 获取或设置控件的背景色
        /// </summary>
        [DefaultValue(typeof(Color), "Transparent")]
        public override Color BackColor
        {
            get
            {
                return base.BackColor;
            }
            set
            {
                base.BackColor = value;
            }
        }

        /// <summary>
        /// 获取或设置控件是否显示必须输入项目提示
        /// </summary>
        [Description("获取或设置控件是否显示必须输入项目提示。"), Category("CustomerEx")]
        [DefaultValue(true)]
        [Bindable(false)]
        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        [EditorBrowsable(EditorBrowsableState.Never)]
        public bool ShowMustInputAlert
        {
            get
            {
                return this._showMustInputAlert;
            }
            set
            {
                if (this._showMustInputAlert != value)
                {
                    this._showMustInputAlert = value;
                }
            }
        }

        /// <summary>
        /// 清除输入项
        /// </summary>
        public virtual void ClearValue()
        {
            this.Text = string.Empty;
        }
        #endregion
    }
}