从同一工作簿中的两个工作表中进行单元格值比较

Question

我有一个excel组合框创建为一个带有datavalidation的列表来显示状态。我在sheet3中保持相同的状态。当用户单击sheet1上的Validate按钮时，我需要比较sheet1和sheet3的状态，如果有更改，我必须显示一个警告，为更改添加Date。此外，我需要确保给定区域中的所有单元格都已填充，并且没有空白。这是我到目前为止所做的，但无法进行比较。

Sub Button2_Click()
Dim LastRow As Long
Dim NoOfCols As Long
Dim NoOfCells As Long
Dim StartRow As Integer
Dim EmpNo As Long
Dim NewStatus As String
Dim ActualStatus As String
Dim Wb As Workbook
Dim ws As Worksheet

    With ActiveSheet
        LastRow = .Cells(.Rows.Count, "A").End(xlUp).row
    End With
    LastRow = LastRow - 8
    NoOfCols = Range("A5:G" & LastRow).Columns.Count
    NoOfCells = LastRow * NoOfCols
    LastRow = LastRow + 4
If WorksheetFunction.CountA(Range("A5:G" & LastRow)) < NoOfCells Then
        MsgBox "Please fill in all details"
    Else
        Set Wb = ThisWorkbook
        Set ws = Wb.Sheets("Sheet3")
        For StartRow = 5 To LastRow
            EmpNo = Cells.Item(StartRow, 3)
            NewStatus = Cells.Item(StartRow, 6)
            With ws
                Set FindRow = .Range("A:A").Find(What:=EmpNo, LookIn:=xlValues)
                MsgBox FindRow
            End With
        Next StartRow
        MsgBox "Data Successfully Validated"
    End If
End Sub
End Sub