专家坐堂-[求助]DateTimePicker类型转化无效Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

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--  专家坐堂  (http://foxtable.net/bbs/list.asp?boardid=2)
----  [求助]DateTimePicker类型转化无效  (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=133590)

--  作者：bashanren
--  发布时间：2019/4/16 21:40:00
--  [求助]DateTimePicker类型转化无效

老师晚上辛苦！！
请老师帮忙看一下下面的代码，执行时，总是提示“dtp”类型转化无效，不知代码 dr2("进度终止日期") = "#dtp#"应该如何修改，谢老师指导！！

Dim str As String = e.form.controls("combobox2").Value
MessageBox.show(str)
Dim Cols1() As String = {"清单项目","工程名称","工程分部","单位","合同工程量","清单单价"}
Dim Cols2() As String = {"清单项目","工程名称","工程分部","单位","合同工程量","清单单价"}
For Each dr1 As DataRow In DataTables("清单目录").Select("[工程名称] = \'" & str & "\'")
Dim dtp As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker1")
Dim dr2 As DataRow = DataTables("合同执行").AddNew()
For Each dc As DataCol In DataTables("清单目录").DataCols
For i As Integer = 0 To Cols1.Length -1
dr2(Cols2(i)) = dr1(Cols1(i))
dr2("进度终止日期") = "#dtp#"
Next
Next
Next

--  作者：有点蓝
--  发布时间：2019/4/16 21:55:00
--

Dim str As String = e.form.controls("combobox2").Value
MessageBox.show(str)
Dim Cols1() As String = {"清单项目","工程名称","工程分部","单位","合同工程量","清单单价"}
Dim Cols2() As String = {"清单项目","工程名称","工程分部","单位","合同工程量","清单单价"}
Dim dtp As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker1")
For Each dr1 As DataRow In DataTables("清单目录").Select("[工程名称] = \'" & str & "\'")
Dim dr2 As DataRow = DataTables("合同执行").AddNew()
dr2("进度终止日期") = dtp.Value
For Each dc As DataCol In DataTables("清单目录").DataCols
dr2(dc.Name)= dr1(dc.Name)
Next
Next

--  作者：bashanren
--  发布时间：2019/4/16 22:12:00
--
非常感谢老师，老师辛苦了！！！