XL: Non-Loop Array Transfer to a Worksheet

• Microsoft Excel for Windows versions 5.0, 5.0c
• Microsoft Excel for Windows 95, version 7.0

SUMMARY

The most common way to transfer the contents of a named array to a worksheet is through a loop such as a For Next loop. A For Next loop indexes the array and inserts one element of the array to the destination address at a time.

You can accomplish this same result without a loop using the Visual Basic, Applications Edition, FormulaArray property of the Range object.

MORE INFORMATION

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In Visual Basic, Applications Edition, the orientation of a one-dimensional array is horizontal. Therefore, if the range of cells on the worksheet that are to receive the contents of the array are also in the same orientation (that is, one row by several columns), the contents can be transferred with a single FormulaArray statement.

For example:

'For a One dimensional horizontal array
Sub arraydump1()

    'Declares an array of size 10
    Dim x(1 To 10) As Double

    'Calculates random values
    For j = 1 To 10

        x(j) = j * j

    Next j

    'Transfers array contents to a horizontal area
    Range(Cells(2, 1), Cells(2, 10)).FormulaArray = x

End Sub

In the event that multiple rows of data are within the two-dimensional array, you must change the orientation of the array. To do this, you can declare the array a two-dimensional array with dimensions of several rows by one column.

For example:

'For a two dimensional vertical array
Sub arraydump2()

    'Declares an array ten rows by one column
    Dim x(1 To 10, 1 To 1) As Double

    'Calculates random values
    For j = 1 To 10

        x(j, 1) = j * j

    Next j

    'Transfers array contents to a vertical area
    Range(Cells(1, 2), Cells(10, 2)).FormulaArray = x

End Sub

REFERENCES

For more information about FormulaArray choose the Search button in Visual Basic Help and type:

   FormulaArray