Determine if cell contains data validation

Question

I am writing a VBA code that goes through a range of cells checking if each cell has data validation (drop down menu) and if not assign one to it from a list on another shee

Answer 1

If you only want to test the activecell, then:

Sub dural()
    Dim r As Range
    On Error GoTo noval
    Set r = Cells.SpecialCells(xlCellTypeAllValidation)
    If Intersect(r, ActiveCell) Is Nothing Then GoTo noval
    MsgBox "Active cell has validation."
    Exit Sub
noval:
    MsgBox "Active cell has no validation."
    On Error GoTo 0
End Sub

Answer 2

Also, if you'd like to get the validation Source you can use the following...

Dim cell as Range
Dim rng as Range
Set rng = Range("A1:A10") 'enter your range

On Error Resume Next 'will skip over the cells with no validation

For Each cell In rng
    msgbox cell.Validation.Formula1
Next cell

Answer 3

Looking for a way to handle this avoiding the error resume next this is the way I implement it:

Option Explicit
' https://stackoverflow.com/questions/18642930/determine-if-cell-contains-data-validation
' Use this if you want to omit doing something to the cell added: http://dailydoseofexcel.com/archives/2007/08/17/two-new-range-functions-union-and-subtract/
Sub ValidationCells()

    Dim theSheet As Worksheet
    Dim lastCell As Range
    Dim validationRange As Range
    Dim validationCell As Range

    Application.EnableEvents = False ' optional

    Set theSheet = ThisWorkbook.Worksheets(1)

    theSheet.Unprotect ' optional

    ' Add a cell with a value and some validation to bypass specialcells error
    Set lastCell = theSheet.Cells(1, theSheet.Cells.Columns.Count)
    With lastCell
        .Value2 = 1
        .Validation.Add xlValidateWholeNumber, xlValidAlertInformation, xlEqual, "1"
    End With

    ' If usedrange is greater than 1 (as we added a single cell previously)
    If theSheet.UsedRange.Rows.Count > 1 Or theSheet.UsedRange.Columns.Count > 1 Then

        Set validationRange = theSheet.UsedRange.SpecialCells(xlCellTypeAllValidation)

        MsgBox validationRange.Address

        For Each validationCell In validationRange
            If validationCell.Address <> lastCell.Address Then
                MsgBox validationCell.Address
            End If
        Next validationCell

    End If

    lastCell.Clear

    Set validationRange = Nothing
    Set lastCell = Nothing

    theSheet.Protect ' optional

    Application.EnableEvents = True ' optional


End Sub

Answer 4

This works for me

Sub test()
    On Error Resume Next
        If ActiveCell.SpecialCells(xlCellTypeSameValidation).Cells.Count < 1 Then
            MsgBox "validation"
        Else
            MsgBox "no Validation"
        End If
    On Error GoTo 0
End Sub

Answer 5

About 4 years later, I am looking for cell validation as well. Combining a few from the answers here, this is what I came up with:

Option Explicit

Public Sub ShowValidationInfo()

    Dim rngCell             As Range
    Dim lngValidation       As Long

    For Each rngCell In ActiveSheet.UsedRange

        lngValidation = 0

        On Error Resume Next
        lngValidation = rngCell.SpecialCells(xlCellTypeSameValidation).Count
        On Error GoTo 0

        If lngValidation <> 0 Then
            Debug.Print rngCell.Address
            Debug.Print rngCell.Validation.Formula1
            Debug.Print rngCell.Validation.InCellDropdown
        End If
    Next

End Sub

Answer 6

Dim cell As Range, v As Long

For Each cell In Selection.Cells
    v = 0
    On Error Resume Next
    v = cell.SpecialCells(xlCellTypeSameValidation).Count
    On Error GoTo 0

    If v = 0 Then
        Debug.Print "No validation"
    Else
        Debug.Print "Has validation"
    End If
Next