Delete checkbox from a Specific Cell with VBA - excel

Question

I'm putting together a spreadsheet that should populate checkboxes in a specific column when the spreadsheet opens if the appropriate A Column/Row is not empty. It should also remove checkboxes when it finds that same A column to be empty. My VB is correctly creating the checkboxes, but I cannot figure out how to tell the code to delete the checkbox from a specific cell.
Most articles I find mention removed ALL checkboxes, but I'm looking to do it conditionally. Any guidance would be greatly appreciated.
Private Sub Workbook_Open()
'declare a variable
Dim ws As Worksheet
Set ws = Worksheets("Sheet1")
'calculate if a cell is not blank across a range of cells with a For Loop
For x = 2 To 1000
If ws.Cells(x, 1) <> "" Then
Call Add_CheckBox(CInt(x))
Else
Call Delete_CheckBox(CInt(x))
End If
Next x
End Sub
Private Sub Add_CheckBox(Row As Integer)
ActiveSheet.CheckBoxes.Add(Cells(Row, "T").Left, Cells(Row, "T").Top, 72, 12.75).Select
With Selection
.Caption = ""
.Value = xlOff '
.LinkedCell = "AA" & Row
.Display3DShading = False
End With
End Sub
Private Sub Delete_CheckBox(Row As Integer)
Dim cb As CheckBox
If cb.TopLeftCell.Address = (Row, "T") Then cb.Delete
End Sub

Answer 1

Naming the CheckBoxes will make it easier to maintain your code.
Private Sub Workbook_Open()
Const CheckBoxPrefix As String = "Sheet1TColumnCheckBox"
'declare a variable
Dim CheckBoxName As String
Dim ws As Worksheet
Set ws = Worksheets("Sheet1")
'calculate if a cell is not blank across a range of cells with a For Loop
Dim r As Long
For r = 2 To 1000
CheckBoxName = CheckBoxPrefix & r
If Len(ws.Cells(r, 1)) > 0 Then
If Not WorksheetContainsCheckBox(CheckBoxName, ws) Then Add_CheckBox CheckBoxName, ws.Cells(r, 1), ws.Cells(r, "AA")
Else
If WorksheetContainsCheckBox(CheckBoxName, ws) Then ws.CheckBoxes(CheckBoxName).Delete
End If
Next
End Sub
Private Sub Add_CheckBox(CheckBoxName As String, Cell As Range, LinkedCell As Range)
With Cell.Worksheet.CheckBoxes.Add(Cell.Left, Cell.Top, 72, 12.75)
.Caption = ""
.Value = xlOff '
.LinkedCell = LinkedCell
.Display3DShading = False
.Name = CheckBoxName
End With
End Sub
Function WorksheetContainsCheckBox(CheckBoxName As String, ws As Worksheet)
Dim CheckBox As Object
On Error Resume Next
Set CheckBox = ws.CheckBoxes(CheckBoxName)
WorksheetContainsCheckBox = Err.Number = 0
On Error GoTo 0
End Function

Answer 2

Try something like this (put a checkbox "in" A1 but not C1)
Sub tester()
Debug.Print Delete_CheckBox([A1])
Debug.Print Delete_CheckBox([C1])
End Sub
'Return True if able to delete a checkbox from range `rng`
Private Function Delete_CheckBox(rng As Range) As Boolean
Dim cb As CheckBox
For Each cb In rng.Worksheet.CheckBoxes
If Not Application.Intersect(cb.TopLeftCell, rng) Is Nothing Then
Debug.Print "Deleting checkbox in " & cb.TopLeftCell.Address
cb.Delete
Delete_CheckBox = True
Exit For 'if only expecting one matched checkbox
End If
Next cb
End Function