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("20160316121212", "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);
}
}
}
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