Question

我有一个非常简单的代码行，可以在Excel VBA中运行，但我不能在我的生活中弄清楚它在VB.NET中是如何工作的。任何帮助将不胜感激。

 Selection.AutoFilter Field:=8, Criteria1:=">=" & sdate

编辑：完整代码

 Dim sDate as Date
 Dim xlapp As New Excel.Application
 sdate = DateTimePicker1.Value.Date
 OpenFileDialog1.Filter = "Excel Documents | *.xls; *.xlsx; *.xlsxm"
 If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
 xlWB= xlapp.Workbooks.Open(OpenFileDialog1.FileName)

 xlWB.Worksheets("Data").Range("H1").Select()
 xlapp.Selection.AutoFilter()               
 xlapp.Selection.AutoFilter(Field:=8, Criteria1:="=>" & sDate)

Answer 1

首先，您必须使用DateTimePicker1将日期从DateSerial转换为日期格式，并使用OLE Automation将日期值转换为ToOADate

您还必须将条件"=>"的运算符更改为">="，=符号必须在之后。

Dim sDate As Date
Dim xlapp As New Excel.Application
Dim xlWB As Excel.Workbook
Dim dpDate As Date = DateTimePicker1.Value.Date
sDate = DateSerial(dpDate.Year, dpDate.Month, dpDate.Day)
OpenFileDialog1.Filter = "Excel Documents | *.xls; *.xlsx; *.xlsxm"
If OpenFileDialog1.ShowDialog = DialogResult.OK Then
    xlWB = xlapp.Workbooks.Open(OpenFileDialog1.FileName)

    xlWB.Worksheets("Data").Range("H1").Select()
    xlapp.Selection.AutoFilter()
    xlapp.Selection.AutoFilter(Field:=8, Criteria1:=">=" & sDate.ToOADate)
End If

在VB.net中过滤excel日期

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