Index Of Active Worksheet

I've been a somewhat casual Excel user and now need to do some VBA with a workbook that has several worksheets in it. In particular, the workbook has sheets that have been added "out of order", that is, the leftmost sheet is not the first one added to the book.

I need to write a VBA routine that looks "backward" from the current worksheet to "previous" sheets, i.e., sheets to the left of the current worksheet, but not to the right, so I can't refer to them as Sheet1, Sheet2, etc. and they actual display names that are not of that form anyway. I am aware of the "Worksheets" collection and the fact that I can "subscript" that to refer to the sheets in a left-to-right form.

I know that I can refer to the current sheet as "ActiveSheet" and I can determine properties like its name with "ActiveSheet.Name", but is it possible to find its index in the Worksheets collection? I'm looking for a function or property such that "ActiveSheet.Index" will allow me to refer to it as "Worksheets(Index)" and particularly to allow me to refer to preceding sheets as, e.g., "Worksheets(Index-1)".

If worse comes to worst, I can always cycle through the worksheets and check the name of each worksheet like this:


Sub Button1_Click()
Dim index As Integer
Dim strASName As String
strASName = ActiveSheet.Name
index = 0
Do
index = index + 1
Loop Until Worksheets(index).Name = strASName
MsgBox "Index of current worksheet is " & index
End Sub

And while I'm at it, is it possible in Excel to rename a control like "Button1" to something more sensible and mnemonic, like "btnRecalculate" or whatever?