reading excel data by column using VB.NET
I have never read from an excel file in VB.NET before so sorry if anything is off.
I am downloading an .csv file from a vendors ftp service that has 8 columns ( style # - mfr.item # - description - metal type - availability - center weight - total weight - retail value )
I am trying to retrieve all data in the rows bellow style # and retail value there are roughly 4,649 rows
I am not sure how to do this.
I load the excel file using the microsoft.office.interop.excel:
Dim eApp As excel.Application
Dim eBook As excel.Workbook
Di开发者_如何学Pythonm eSheet As excel.Worksheet
Dim eCell As excel.Range
eApp = New excel.Application
eBook = eApp.Workbooks.Open(localFile)
eSheet = eBook.Worksheets(1)
eCell = eSheet.UsedRange
Can anyone help me on what I need to do next? I have browsed google for a few hours now and have not gotten anything to work, just return an object name.
Thanks
You are so almost there! Here are two ways.
Way #1: Add the following, after the eCell = eSheet.UsedRange
:
Dim eCellArray as System.Array = eCell.Value
Then get the values via eCellArray(r,c)
, where r is the row and c is the column (each starting from 1).
Way #2: Use this expression to get the value of a cell:
CType(eCell(r,c),Excel.Range).Value ' For Option Strict, or just to get IntelliSense to work.
or simply
eCell(r,c).Value
HTH
You can, for example, access the cells in a range like this:
Dim iRow as Integer = 1
Dim iCol as Integer
Dim rng as Excel.Range = getYourRangeFromSomewhere()
Dim rngCell as Excel.Range
For iCol = 1 To 10
rngCell = rng.Cells(iRow,iCol)
Debug.Print rngCell.Value
Next
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