我正在尝试将整个Excel表格添加到数据表中并声明如下变量:
workbook = APP.Workbooks.Open(fileString)
worksheet = workbook.Worksheets("Report")
能够从Excel文件中读取。我已使用消息框进行了检查:
MsgBox(worksheet.Cells(1, 1).Value)
这样可行,但我找不到将Excel文件中的值添加到数据表中的方法:
Dim table As New DataTable
table.Columns.Add("DATE")
table.Columns.Add("VALUE")
任何人都可以帮我吗?
答案 0 :(得分:1)
您可以使用某些库来执行此操作 例如NPOI(example)或Epplus(example) 或use OleDb provider
答案 1 :(得分:1)
您可以使用oledb
将Excel导出到datatable注意:强>
因为我们要使用oledb连接,所以我们必须进口 System.Data.OleDb
尝试以下代码
Dim dt As New DataTable
dt.Columns.Add("date")
dt.Columns.Add("value")
Dim dr As DataRow = dt.NewRow()
Time = System.DateTime.Now
Try
XLDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\name.xls;Extended Properties=""Excel 8.0;IMEX=1;HDR=YES;""") 'give your file path in source
Catch ex As Exception
Throw (ex)
Exit Sub
End Try
XLDbConnection.Open()
Try
XLDbCommand = New OleDbCommand("select * from [sheet1$]", XLDbConnection) 'sheet1 is name of the excel sheet
XLDbDataReader = XLDbCommand.ExecuteReader
Catch ex As Exception
Throw (ex)
Exit Sub
End Try
If XLDbDataReader.HasRows = True Then
'Assign excel data to datacolumn of our datatable
While XLDbDataReader.Read
Try
dr("date") = XLDbDataReader.Item("date").ToString() 'column name as it is in excel file
dr("value") = XLDbDataReader.Item("value").ToString()
dt.Rows.Add(dr)
Catch ex As Exception
Throw (ex)
End Try
End While
End If
希望这会有所帮助