重写DEV的DateEdit控件的类只选择年月

　　最新在做CRM的报表，查询条件只需要年月，DateEdit 以及几个时间控件都用的不顺，强迫症犯了一怒之下起了重写DateEdit的想法



新建一个类

　　CXDateEdit

using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Calendar;
using DevExpress.XtraEditors.Controls;
using DevExpress.XtraEditors.Popup;
using DevExpress.XtraEditors.Repository;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace MLTY.Business.Report
{
public class CXDateEdit : DateEdit
{
public CXDateEdit()
{
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 CXDateEdit.DateResultModeEnum DateMode

{

get { return ((CXDateEdit)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 == CXDateEdit.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);

}

}

}

　　然后在窗体xxx上拖一个dateedit ，进入xxx.Designer.cs 将设计器代码 this.dateedit =new DevExpress.XtraEditors.DateEdit();

改成 重写的类


原博地址：http://www.cnblogs.com/axing/p/3201066.html