I want to check if a range in Excel is empty.
How do I write in VBA code:
If Range("A38":"P38") is empty
Found a solution from the comments I got.
Sub Empty()
If WorksheetFunction.CountA(Range("A38:P38")) = 0 Then
MsgBox "Empty"
Else
MsgBox "Not Empty"
End If
End Sub
IsEmpty returns True if the variable is uninitialized, or is explicitly set to Empty; otherwise, it returns False. False is always returned if expression contains more than one variable. IsEmpty only returns meaningful information for variants. (https://msdn.microsoft.com/en-us/library/office/gg264227.aspx) . So you must check every cell in range separately:
Dim thisColumn as Byte, thisRow as Byte
For thisColumn = 1 To 5
For ThisRow = 1 To 6
If IsEmpty(Cells(thisRow, thisColumn)) = False Then
GoTo RangeIsNotEmpty
End If
Next thisRow
Next thisColumn
...........
RangeIsNotEmpty:
Of course here are more code than in solution with CountA function which count not empty cells, but GoTo can interupt loops if at least one not empty cell is found and do your code faster especially if range is large and you need to detect this case. Also this code for me is easier to understand what it is doing, than with Excel CountA function which is not VBA function.
Dim M As Range
Set M = Selection
If application.CountIf(M, "<>0") < 2 Then
MsgBox "Nothing selected, please select first BOM or Next BOM"
Else
'Your code here
End If
From experience I just learned you could do:
If Selection.Rows.Count < 2
Then End If`
Clarification to be provided a bit later (right now I'm working)
If you find yourself in a situation where it's absolutely necessary that you loop through each cell in a range instead of using CountA, then it's much faster to first convert that range into an array and loop on that array's values than to loop on many ranges/cells.
Function IsRangeEmpty(ByVal rng As Range) As Boolean
'Converts a range to an array and returns true if a value is found in said array
Dim area As Range
For Each area In rng.Areas
If area.Cells.Count > 1 Then
'save range as array
Dim arr As Variant
arr = area.value
'loop through array
Dim cel As Variant
For Each cel In arr
'if cell is not empty then
If Len(Trim(cel)) > 0 Then
IsRangeEmpty = False
Exit Function
End If
Next cel
Else 'cannot loop on array with one value
'if cell is not empty then
If Len(Trim(area.Value2)) > 0 Then
IsRangeEmpty = False
Exit Function
End If
End If
Next area
IsRangeEmpty = True
End Function
Example of how to use it:
Sub Test()
Debug.Print IsRangeEmpty(Range("A38:P38"))
End Sub
If Range("A38:P38") is empty, it would print True; otherwise it'd print False.
Dim cel As Range, hasNoData As Boolean
hasNoData = True
For Each cel In Selection
hasNoData = hasNoData And IsEmpty(cel)
Next
This will return True if no cells in Selection contains any data. For a specific range, just substitute RANGE(...) for Selection.
Another possible solution. Count empty cells and subtract that value from the total number of cells
Sub Emptys()
Dim r As range
Dim totalCells As Integer
'My range To check'
Set r = ActiveSheet.range("A1:B5")
'Check for filled cells'
totalCells = r.Count- WorksheetFunction.CountBlank(r)
If totalCells = 0 Then
MsgBox "Range is empty"
Else
MsgBox "Range is not empty"
End If
End Sub
This just a slight addition to @TomM's answer/ A simple function to check
if your Selection's cells are empty
Public Function CheckIfSelectionIsEmpty() As Boolean
Dim emptySelection As Boolean:emptySelection=True
Dim cell As Range
For Each cell In Selection
emptySelection = emptySelection And isEmpty(cell)
If emptySelection = False Then
Exit For
End If
Next
CheckIfSelectionIsEmpty = emptySelection
End Function
来源：https://stackoverflow.com/questions/10811121/detect-if-range-is-empty