Macro To Prevent Changing The Value Within A Cell

Jan 11, 2007

I would like to write a macro that performs the following function:

I have a value in cell A1

In cell A2, I have the formula "=A1"

I want to make it so that cell A2 can never be directly changed; the only way to change the value in A2 is by changing A1. A2 should always equal A1.

I want a message box to pop up and alert the user whenever they attempt to modify A2, instructing them that if they wish to change A2, they have to change A1.

I had written this macro, and it kinda does the trick:



Private Sub Worksheet_SelectionChange(ByVal Target As Range)


If Range("a2") Range("a1") Then
MsgBox "text goes here"
Range("a2").Value = Range("a1")
End If

End Sub

When I attempt to change cell A2, I get the MsgBox popup and it works how I want it to. However, when I alter cell A1, I get the same popup before cell A2 updates (to be precise, the popup occurs after I click another cell). I would like this to be immediate and without a MsgBox.

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I want to allow users to select a cell in a column, but not allow them to change the contents of the cell. Also, don't want to allow them to select all the cells on the sheet.

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Is there a better way to do this?

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In other words, I need to prevent the formulas from changing to reference the moved data values and keep referencing the initial cell with the new values. xample of change that occurs with update:

Correct:

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Private Sub Worksheet_Change(ByVal Target As Range)
Static lngRow As Long
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[Code]....

Defined range names: "Header" in cell A1 and "Totals" in cell A12

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The problem is that when the data on sheet 2 gets updated and more lines added, the computer changes my formula for the cell on sheet 1 as well. the new formula will change to

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Now everything was great when using protections/ validations, to the where they fill in the information, but the problem occur when they are allowed to delete and remove rows.

This is something that I want to allow them, even though I do realise that this is something that many advice against it.

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Original Code: Unedited.

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