CODEWITHSUNDEEP
excelvb.netexcel-dna
david plotkin
david plotkin

Reputation: 33

Excel VB.Net - Convert array to range and set value to worksheet

I have been trying to find a solution for this error for a few hours, all the solutions I found didn't fix the error I get when setting Range.Value2 = Value while trying to populate an array into an excel spreadsheet. Currently the array has a length of only 1 in size, I've tried it with bigger array and so far it just throws me this exception in the last line of code:

System.Runtime.InteropServices.COMException: 'Exception from HRESULT: 0x800A03EC'

The code:

Imports ExcelDna.Integration
Imports Excel = Microsoft.Office.Interop.Excel

Public Function TestFunction()

    'Dim data = New Object(1, 2) {{1, 2, 3}, {2, 3, 4}}
    Dim app As Excel.Application = CType(ExcelDnaUtil.Application, Excel.Application)
    Dim worksheet As Excel.Worksheet = CType(app.ActiveWorkbook.ActiveSheet, Excel.Worksheet)
    Dim rng As Excel.Range = CType(worksheet.Cells(2, 1), Excel.Range)

    Dim arr() As String = New String() {"hello world"}

    'Tried this rng.Value2 = arr as well
    rng.Resize(1, arr.Length).Value2 = arr
End Function

My goal is to be able to copy a matrix to the excel spreadsheet but so far I just need help in fixing the error that the code throws with an array. Thank you for future replies!

Upvotes: 2

Views: 2022

Answers (1)

KekuSemau
KekuSemau

Reputation: 6856

Range.Value2 is a two-dimensional array/matrix, you have to use such an array, too.

Dim arrLine1() As String = {"Hello World!", "red", "green"}

' convert to 2-dimensional array
Dim arr(,) As String
Redim arr(1, arrLine1.Length)
For i = 0 To arrline1.Length - 1
    arr(0, i) = arrLine1(i)
Next

rng.Resize(1, arr.GetUpperBound(1)).Value2 = arr

Upvotes: 1

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