主题：[求助]起始日期

窗口的起始日期和结束日期默认为上个月21日和本月20日,红色部分怎么写,或是有没有更简单的代码,谢谢

Dim dt As Date = Date.Today
Dim dy As Integer = dt.year
Dim dm As Integer = dt.month

Dim FirstDay As Date = New Date(dy,dm-1,21)
Dim LastDay As Date = New Date(dy,dm,20)

e.Form.Controls("报表起始日期").value = firstday
e.Form.Controls("报表结束日期").value = lastday

Dim dt As Date = Date.Today
Dim dy As Integer = dt.year
Dim dm As Integer = dt.month

Dim dts As Date = Date.Today.AddMonths(-1)
Dim dys As Integer = dts.year
Dim dms As Integer = dts.month

Dim FirstDay As Date = New Date(dys,dms,21)
Dim LastDay As Date = New Date(dy,dm,20)

e.Form.Controls("报表起始日期").value = firstday
e.Form.Controls("报表结束日期").value = lastday

用笨办法解决了,不知道有没有简洁的

Dim dt As Date = Date.Today
Dim dy As Integer = dt.year
Dim dm As Integer = dt.month

Dim LastDay As Date = New Date(dy,dm,20)
Dim FirstDay As Date = LastDay.AddMonths(-1).AddDays(1)

受教了