如何从Excel文件中导入所有Sheet到DataTable中？

如果需要从外部存储的测试数据文件例如 Excel 中导入 Sheet 页到 DataTable 中，并且判断 DataTable 中是否存在指定的 Sheet ，如果不存在则添加 Sheet 。可以例如 DataTable 对象的 GetSheet 、 AddSheet 以及 Excel 的 COM 对象编程来实现：

Function ImportAllSheets(ByVal FileName)

Dim oExcel, oBook

'Launch excel

Set oExcel = GetObject("", "Excel.Application")

'Open the file in read only mode

Set oBook = oExcel.WorkBooks.Open(FileName,,True)

'Enumerate through all the sheets present in the file

For each oSheet in oBook.WorkSheets

'Check if a DataTable with current name already exists

If Not IfDataSheetExist(oSheet.Name) Then

'DataTable cannot be imported if the sheet does not exist

DataTable.AddSheet oSheet.Name

End If

'Import the sheet

DataTable.ImportSheet FileName, oSheet.Name,oSheet.Name

Next

Set oBook = Nothing

'Quit Excel

oExcel.Quit

Set oExcel = Nothing

End Function

Function IfDataSheetExist(ByVal SheetName)

IfDataSheetExist = True

On error resume next

Dim oTest

Set oTest = DataTable.GetSheet(SheetName)

If err.number Then IfDataSheetExist = False

On error goto 0

End Function