Loop through worksheets and create tables - excel

Question

I have 10 worksheets.
I want to create a table for each. every table has a different amount of data, ive been using the following code for each, but i was wondering how to do it with a loop.
I would truly apreciate some help :)
Sub table()
Dim sht As Worksheet
Dim lastrow As Long
Dim LastColumn As Long
Dim StartCell As Range
Set sht = Worksheets("m9")
Set StartCell = Range("A1")
lastrow = sht.Cells(sht.Rows.Count, StartCell.Column).End(xlUp).Row
LastColumn = sht.Cells(StartCell.Row, sht.Columns.Count).End(xlToLeft).Column
sht.Range(StartCell, sht.Cells(lastrow, LastColumn)).Select
Dim objTable As ListObject
Set objTable = ActiveSheet.ListObjects.Add(xlSrcRange, Selection, , xlYes)
End Sub
Tried the following, but with no luck
Sub loop_test()
Dim i As Integer
Dim ws_num As Integer
Dim starting_ws As Worksheet
Set starting_ws = ActiveSheet
ws_num = ThisWorkbook.Worksheets.Count
For i = 1 To ws_num
ThisWorkbook.Worksheets(i).Activate
'
Dim lastrow As Long
Dim LastColumn As Long
Dim StartCell As Range
Set StartCell = Range("A1")
lastrow = Cells(Rows.Count, StartCell.Column).End(xlUp).Row
Range(StartCell, Cells(lastrow, LastColumn)).Select
Dim objTable As ListObject
Set objTable = ActiveSheet.ListObjects.Add(xlSrcRange, Selection, , xlYes)
Next
starting_ws.Activate
End Sub

Answer 1

You should avoid Activate and Select statements. The following will loop through all worksheets in the workbook and add a ListObject to each sheet. It will also test to see whether there is an already existing ListObject. If the existing ListObject overlaps with the range that you're going to add the table into to, it will convert it to a range before recreating the ListObject
Sub loop_test()
Dim ws As Worksheet
Dim StartCell As Range, TblRng As Range
Dim LastRow As Long, LastColumn As Long
Dim objTable As ListObject
For Each ws In ThisWorkbook.Sheets
Set objTable = Nothing
With ws
Set StartCell = .Range("A1")
LastRow = .Cells(.Rows.Count, StartCell.Column).End(xlUp).Row
LastColumn = .Cells(StartCell.Row, .Columns.Count).End(xlToLeft).Column
Set TblRng = .Range(StartCell, .Cells(LastRow, LastColumn))
' Test if table exists on sheet
On Error Resume Next
Set objTable = .ListObjects(1)
On Error GoTo 0
' If table overlaps with TblRng - Convert to Range
If Not Intersect(objTable.Range, TblRng) Is Nothing Then
objTable.Unlist
End If
' Create Table
Set objTable = .ListObjects.Add(xlSrcRange, TblRng, , xlYes)
End With
Next ws
End Sub

Answer 2

Try this. As Zac says, steer clear of activating and selecting and include sheet references.
Sub loop_test()
Dim i As Long 'use Long, integer only goes up to c32k
Dim ws_num As Long
Dim starting_ws As Worksheet
Set starting_ws = ActiveSheet
ws_num = ThisWorkbook.Worksheets.Count
Dim lastrow As Long
Dim LastColumn As Long
Dim StartCell As Range, r As Range
Dim objTable As ListObject
For i = 1 To ws_num
With ThisWorkbook.Worksheets(i) 'don't need to activate
Set StartCell = .Range("A1")
lastrow = .Cells(.Rows.Count, StartCell.Column).End(xlUp).Row
Set r = .Range(StartCell, .Cells(lastrow, LastColumn))
Set objTable = .ListObjects.Add(xlSrcRange, r, , xlYes)
End With
Next i
End Sub