Leaving Trace Precedents Turned On

by Allen Wyatt
(last updated July 5, 2014)

6

Gavin has a large worksheet that he works with, and he finds it helpful to use the Trace Precedents tool (on the Formulas tab of the ribbon) to figure out what is going on. Gavin would like the setting of the tool to be "turned on" even when he saves the workbook, but Excel doesn't let him do this. He wonders if there is a way to leave it turned on so that the precedents are always marked in the workbook.

One would think that it should be relatively easy to turn on the precedents, via macro, when you open a workbook. All you need to do is use a macro like the following:

Sub ShowTracePrecendents1()
    Dim rng As Range
    Dim c As Range

    With ActiveSheet.UsedRange
        Set rng = .Cells.SpecialCells(xlCellTypeFormulas, 23)
    End With
    Application.ScreenUpdating = False

    For Each c In rng
        c.ShowPrecedents
     Next
End Sub

The macro determines which cells in the worksheet contain formulas (only formula-containing cells can have precedents) and then steps through each of those cells, turning on the display of the precedents.

The problem, of course, is that this approach doesn't do exactly what Gavin wanted. It is probable that Gavin, when working with his data, doesn't turn on the precedents for every single cell, but only for some of the cells. The macro turns on precedent display for all possible cells in the worksheet. If you only want to display the precedents for some cells, you need to specify the cells in the macro.

Sub ShowTracePrecendents2()
    Dim rng As Range
    Dim c As Range

    Set rng = Range("G1:G5,G7:G8")
    For Each c In rng
        c.ShowPrecedents
    Next
End Sub

In order to use the macro effectively, you would need to change the line that sets the rng variable so that it references the cells for which you want precedents displayed.

Regardless of which macro you go with, you can create an "auto open" macro (as discussed in other ExcelTips) that will run it automatically whenever the workbook is opened.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (13161) applies to Microsoft Excel 2007, 2010, and 2013.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He  is president of Sharon Parq Associates, a computer and publishing services company. ...

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What is two more than 4?

2014-07-09 10:42:36

Patrick

Thanks Willy, that helps my understanding. Much appreciated.


2014-07-08 05:32:24

Willy Vanhaelen

The variable c stands for cell, read: For Each cell in rng.

As for the period before Cells: look in help for With Statement.


2014-07-07 13:58:38

Patrick

Just starting to experiment with VBA. Don't understand the variable c. Is the code statement interpreted as "for each range in range show precedents?" Also, why is there a period before the word Cells in the set rng statement?


2014-07-07 05:44:07

Steve Askins

Thanks Peter - that works!


2014-07-06 07:53:43

Peter

Try this
Sub ShowPrecendents3()
Dim rng As Range, c As Range
Set rng = Application.InputBox("Select or type Range", "Precendent Range", Type:=8)
For Each c In rng
c.ShowPrecedents
Next
End Sub
Sub ShowPrecendents3()


2014-07-05 07:46:42

Steve Askins

Allen,

It would be great if the range macro brought up a dialogue box (or similar) to ask the user what range (or ranges) to cover.

Is that do-able?

Happy 4th July holiday from London!


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