DevExpress之时间控件

dateEdit和timeEdit

基本属性

DisplayFormat.FormatString-------失去焦点是控件显示的格式，timeEdit用不上

EditMask--------------------------获取焦点时也就是在编辑状态时控件的显示格式

ShowToday-----------------------控件编辑状态时是否在编辑框中显示当天日期，dateEdit的控件

Text------------------------------获取控件的值

SelectedText---------------------获取选中的值，一般是用在timeEdit，timeEdit编辑状态时可以选中 小时/分钟/秒

显示到天

dateEdit1.Properties.DisplayFormat.FormatString = "yyyy-MM-dd";
dateEdit1.Properties.EditMask = "yyyy-MM-dd";

显示到月

dateEdit1.Properties.DisplayFormat.FormatString = "yyyy-MM";
dateEdit1.Properties.EditMask = "yyyy-MM";

显示到年

dateEdit1.Properties.DisplayFormat.FormatString = "yyyy";
dateEdit1.Properties.EditMask = "yyyy";

字符串转DateTime

DateTime.Parse("2016-3-16 12:12:12")

字符串根据指定格式转换为DateTime

IFormatProvider ifp = new CultureInfo("zh-CN", true);
DateTime.ParseExact("", "yyyyMMddHHmmss", ifp);

ifp是一个区域特定格式字符串信息

注意：大写MM是指月，小写mm是指分钟，小时二十四制要用大写HH，十二小时制用小写hh

DateTime转换指定格式字符串

DateTime datetime = DateTime.Now;
string timeString = datetime.ToString("yyyyMMddHHmmss");

旧版本在显示到月或者是年的时候有点麻烦，需要自己重载dateEdit控件

using System;

using System.Collections;

using System.Collections.Generic;

using System.Data;

using System.Diagnostics;

using DevExpress.XtraEditors;

using DevExpress.XtraEditors.Calendar;

using DevExpress.XtraEditors.Popup;

using DevExpress.XtraEditors.Controls;

using DevExpress.XtraEditors.Repository;

namespace LZJA.Common

{

    public class DateEditEx : DateEdit

    {

        public DateEditEx()

        {

            Properties.VistaDisplayMode = DevExpress.Utils.DefaultBoolean.True;

            Properties.DisplayFormat.FormatString = "yyyy-MM";

            Properties.DisplayFormat.FormatType = DevExpress.Utils.FormatType.DateTime;

            Properties.Mask.EditMask = "yyyy-MM";

            Properties.ShowToday = false;

        }

        protected override PopupBaseForm CreatePopupForm()

        {

            if (Properties.VistaDisplayMode == DevExpress.Utils.DefaultBoolean.True)

                return new CustomVistaPopupDateEditForm(this);

            return new PopupDateEditForm(this);

        }

        private DateResultModeEnum _dateMode = DateResultModeEnum.FirstDayOfMonth;

        public DateResultModeEnum DateMode

        {

            get { return _dateMode; }

            set { _dateMode = value; }

        }

        public enum DateResultModeEnum : int

        {

            //虽然是年月控件，但日期Datetime肯定是2012-01-01这种格式

            //所以，这个枚举定义了年月控件返回本月的第一天，还是本月的最后一天作为DateEditEx的值

            FirstDayOfMonth = 1,

            LastDayOfMonth = 2

        } 

    }

    public class CustomVistaPopupDateEditForm : VistaPopupDateEditForm

    {

        public CustomVistaPopupDateEditForm(DateEdit ownerEdit) : base(ownerEdit) { }

        protected override DateEditCalendar CreateCalendar()

        {

            return new CustomVistaDateEditCalendar(OwnerEdit.Properties, OwnerEdit.EditValue);

        }

    }

    public class CustomVistaDateEditCalendar : VistaDateEditCalendar

    {

        public CustomVistaDateEditCalendar(RepositoryItemDateEdit item, object editDate) : base(item, editDate) { }

        protected override void Init()

        {

            base.Init();

            this.View = DateEditCalendarViewType.YearInfo;

        }

        public DateEditEx.DateResultModeEnum DateMode

        {

            get { return ((DateEditEx)this.Properties.OwnerEdit).DateMode; }

        }

        protected override void OnItemClick(DevExpress.XtraEditors.Calendar.CalendarHitInfo hitInfo)

        {

            DayNumberCellInfo cell = hitInfo.HitObject as DayNumberCellInfo;

            if (View == DateEditCalendarViewType.YearInfo)

            {

                DateTime dt = new DateTime(DateTime.Year, cell.Date.Month, 1, 0, 0, 0);

                if (DateMode == DateEditEx.DateResultModeEnum.FirstDayOfMonth)

                {

                    OnDateTimeCommit(dt, false);

                }

                else

                {

                    DateTime tempDate = dt.AddMonths(1).AddDays(-1);

                    tempDate = new DateTime(tempDate.Year, tempDate.Month, tempDate.Day, 23, 59, 59);

                    OnDateTimeCommit(tempDate, false);

                }

            }

            else

                base.OnItemClick(hitInfo);

        }

    }

}

这是网上的一个例子，原文链接https://www.devexpress.com/Support/Center/Question/Details/CQ60337/control-for-selecting-month，下面这个是我稍微改了一下，只显示年面板的代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Calendar;
using DevExpress.XtraEditors.Popup;
using DevExpress.XtraEditors.Controls;
using DevExpress.XtraEditors.Repository;
namespace  LZJA.Common
{
    public class DateEditEx : DateEdit
    {

        public DateEditEx()
        {

            Properties.VistaDisplayMode = DevExpress.Utils.DefaultBoolean.True;

            Properties.DisplayFormat.FormatString = "yyyy";

            Properties.DisplayFormat.FormatType = DevExpress.Utils.FormatType.DateTime;

            Properties.Mask.EditMask = "yyyy";

            Properties.ShowToday = false;

        }

        protected override PopupBaseForm CreatePopupForm()
        {

            if (Properties.VistaDisplayMode == DevExpress.Utils.DefaultBoolean.True)

                return new CustomVistaPopupDateEditForm(this);

            return new PopupDateEditForm(this);

        }

        private DateResultModeEnum _dateMode = DateResultModeEnum.FirstDayOfMonth;

        public DateResultModeEnum DateMode
        {

            get { return _dateMode; }

            set { _dateMode = value; }

        }

        public enum DateResultModeEnum : int
        {

            //虽然是年月控件，但日期Datetime肯定是2012-01-01这种格式

            //所以，这个枚举定义了年月控件返回本月的第一天，还是本月的最后一天作为DateEditEx的值

            FirstDayOfMonth = 1,

            LastDayOfMonth = 2

        }

    }

    public class CustomVistaPopupDateEditForm : VistaPopupDateEditForm
    {

        public CustomVistaPopupDateEditForm(DateEdit ownerEdit) : base(ownerEdit) { }

        protected override DateEditCalendar CreateCalendar()
        {

            return new CustomVistaDateEditCalendar(OwnerEdit.Properties, OwnerEdit.EditValue);

        }

    }

    public class CustomVistaDateEditCalendar : VistaDateEditCalendar
    {

        public CustomVistaDateEditCalendar(RepositoryItemDateEdit item, object editDate) : base(item, editDate) { }

        protected override void Init()
        {

            base.Init();

            this.View = DateEditCalendarViewType.YearsInfo;

        }

        public DateEditEx.DateResultModeEnum DateMode
        {

            get
            {
                return ((DateEditEx)this.Properties.OwnerEdit).DateMode;
            }

        }

        protected override void OnItemClick(DevExpress.XtraEditors.Calendar.CalendarHitInfo hitInfo)
        {

            DayNumberCellInfo cell = hitInfo.HitObject as DayNumberCellInfo;

            //DateTime dt = new DateTime(DateTime.Year, 1, 1, 0, 0, 0);
            OnDateTimeCommit(cell.Date, false);
            //base.OnItemClick(hitInfo);

        }

    }
}