HOWTO: Pass a Visual Basic Array to an Excel Worksheet

ID: Q153090

The information in this article applies to:

Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, version 6.0
Microsoft Visual Basic Control Creation, Learning, Professional, and Enterprise Editions for Windows, version 5.0
Microsoft Visual Basic Standard, Professional, and Enterprise Editions, 16-bit and 32-bit, for Windows, version 4.0

SUMMARY

One of the enhancements of Visual Basic is the ability to pass an array of values to a Microsoft Excel spreadsheet with a single command. This is done by a simple assignment of an array to a Microsoft Excel range.

MORE INFORMATION

Step-by-Step Example

Method 1:

Start a new project. Form1 is created by default.

Place a Command button on the form.

Add the following code to the Form1 code window:


      Option Explicit

      Private Sub Command1_Click()
        Dim o As Object
        Dim i As Integer
        Dim iNumbers(1 To 10) As Integer
        For i = LBound(iNumbers) To UBound(iNumbers)
          iNumbers(i) = Int(Rnd * 100) + 1
        Next i
        Set o = CreateObject("excel.application")
        o.Visible = True
        o.Workbooks.Add
        o.sheets("sheet1").Range("A1:J1").Value = iNumbers
      End Sub

Press the F5 key or select Start from the Run menu to start the program. You should see a new instance of Microsoft Excel created with the first row of the sheet populated with random numbers.

Method 2:

The code sample above uses a hard-coded range. You can change the UBound of the Array making your code more flexible so you can specify the Starting column and Row for output on the spreadsheet. The array will then be entered irrespective of its size. Instead of simply using the range object, you incorporate the cells object to build up the relevant strings. To implement this behavior, use the following code:


   Private Sub Command1_Click()
     Dim o As Object
     Dim i As Integer
     Dim iNumbers(1 To 10) As Integer
     Dim iStartRow As Integer
     Dim iStartCol As Integer
     iStartRow = 1
     iStartCol = 1
     For i = LBound(iNumbers) To UBound(iNumbers)
       iNumbers(i) = Int(Rnd * 100) + 1
     Next i
     Set o = CreateObject("excel.application")
     o.Visible = True
     o.Workbooks.Add
     o.sheets("sheet1").range(o.cells(iStartRow, iStartCol).address, _
       o.cells(iStartRow, ((iStartCol - 1) + _
       UBound(iNumbers))).address).Value = iNumbers
   End Sub

Additional query words:

Keywords : kbinterop kbVBp kbVBp400 kbVBp500 kbVBp600 kbGrpVB
Version : WINDOWS:4.0,5.0,6.0
Platform : WINDOWS
Issue type : kbhowto