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IsMissing Function
Hello,
I'm trying to write (what I assumed would be) a relatively simple function. I want it to return the sheet name of a cell or range included in an argument or, if no argument is supplied, return the sheet name that the cell is on that the function resides in. However, I can't seem to make the function recognize whether the argument has been supplied or not. Here's what I have: Function SheetNme(Optional ChkCell As Range) As String On Error GoTo error_handler If IsMissing(ChkCell) = True Then SheetNme = ActiveSheet.Name Exit Function Else SheetNme = ChkCell.Worksheet.Name End If Exit Function error_handler: MsgBox Err.Number & vbLf & Err.Description End Function I've also tried IsEmpty, IsNull, IsObject and IsError...none of which make a distinction between a supplied variable or not. I tried assigning a value to the variable at declaration, e.g. Optional ChkCell as Range = ActiveCell.AddressLocal; and various permutations thereof, but I always got an error that it had to be a constant. Assigning a constant didn't work well with the range object. There has to be something that I'm missing, but I couldn't find it in help. If anyone has any ideas, I'd love the input. Thanks, Mike |
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