Use cell's value as part of macro

Question

I usually use a macro to show and hide columns using a checkbox. I set it up by defining the columns in the macro code.

Sub Hideshow()
    If Range("A1").Value = "True" Then
        ActiveSheet.Columns("B:C").Hidden = False
    ElseIf Range("A1").Value = "False" Then
        ActiveSheet.Columns("B:C").Hidden = True
    Else
    Return
    End If
    End Sub

For this code, A1 = the result of the checkbox (True/False) and B:C are the columns I am hiding or, if already hidden; showing.

However, now I am making a more dynamic version of this, because I am getting bored of scrolling through the macro code and changing each column reference when a new column is added or the column range changes.

I have now put the columns I want to hide within cell A2 on my sheet e.g B:C

I would like the macro code to use the value of that cell as a 'defined range'? to show and hide the column range I have defined in cell A2.

I've found lots of similar posts, but they are slightly different and I can't make it work for my specific scenario.

The new one would look something like this

Sub Hideshow()
    If Range("A1").Value = "True" Then
        ActiveSheet.Columns(" The Value in A2 ").Hidden = False
    ElseIf Range("A1").Value = "False" Then
        ActiveSheet.Columns(" The Value in A2").Hidden = True
    Else
    Return
    End If
    End Sub

Any ideas?

Answer 1

This code should do the trick:

Sub HideShow()

    Dim ColsToHide As String
    ColsToHide = Sheet1.Range("A2") 'This will always get the value from the sheet with the codename Sheet1.

    'Unhide if hidden, hide if not hidden.
    ActiveSheet.Columns(ColsToHide).Hidden = Not ActiveSheet.Columns(ColsToHide).Hidden

End Sub  

There are probably better ways to figure out which columns need hiding - is there anything specific about a column that decides if it should be hidden or not?