检查工作表是否存在，如果不存在则创建-VBA

Question

我已经测试了许多代码来检查工作表是否存在（基于名称），如果不存在则创建一个。其中一些循环所有工作表，有些引用工作表，如果创建错误意味着该工作表不存在。哪个是最合适 - 正统 - 更快的方式来完成这项任务？

目前我正在使用：

Option Explicit

Sub test()     
    Dim ws As Worksheet
    Dim SheetName As String
    Dim SheetExists As Boolean
    
    SheetName = "Test"
    SheetExists = False
    
    With ThisWorkbook
        'Check if the Sheet exists
        For Each ws In .Worksheets
            If ws.Name = SheetName Then
                SheetExists = True
                Exit For
            End If   
        Next
        
        If SheetExists = False Then
            'If the sheet dont exists, create
            .Sheets.Add(After:=.Sheets(.Sheets.Count)).Name = SheetName
        End If
    End With 
End Sub

Answer 1

这就是我使用的。无需循环。直接尝试分配给一个对象。如果成功，则表示该工作表存在:)

Function DoesSheetExists(sh As String) As Boolean
    Dim ws As Worksheet

    On Error Resume Next
    Set ws = ThisWorkbook.Sheets(sh)
    On Error GoTo 0

    If Not ws Is Nothing Then DoesSheetExists = True
End Function

用法

Sub Sample()
    Dim s As String: s = "Sheet1"

    If DoesSheetExists(s) Then
        '
        '~~> Do what you want
        '
    Else
        MsgBox "Sheet " & s & " does not exist"
    End If
End Sub