VBA - 在“IF 语句”内嵌套“With 语句”

语言：VBA - MS Access

我在代码中使用用户定义类型 (UDT)。 我希望能够根据状态变量确定我正在将数据加载到 UDT 的哪个部分。我的第一次尝试是使用嵌套在“IF”语句中的“With”语句。这不起作用（我收到一个编译器错误，显示 Else without if）。有办法让这项工作发挥作用吗？或者使用状态变量来确定我正在加载 UDT 的哪个部分的另一种方法？

Type MyOtherType
    Name as String
    Age as Integer    
End Type

Type MyType
    aMyOtherType() as MyOtherType
    X as Integer
    Y as Integer
    Z as Integer  
End Type

Sub QuestionableCode()
Dim UDT(0 To 0) as MyType
Dim State as String
ReDim Preserve UDT(0).X(0 to 0) as MyOtherType
ReDim Preserve UDT(0).Y(0 to 0) as MyOtherType
ReDim Preserve UDT(0).Z(0 to 0) as MyOtherType

    State = "B"

    If State = "A" Then
        With UDT(0).X(0)
    ElseIf State = "B" Then
        With UDT(0).Y(0)
    Else 
        With UDT(0).Z(0)
    End If
            .Name = "George"
            .Age = 30
        End With
End Sub

你不能与With那样。编译器不允许这种有条件嵌套的代码。不与With，不与For，不与其他任何东西一起。

但是，您可以使用变量来确定要在 with 中使用哪个值：

Sub QuestionableCode()
    Dim UDT(0 To 0) as MyType
    Dim State as String
    ReDim Preserve UDT(0).X(0 to 0) as MyOtherType
    ReDim Preserve UDT(0).Y(0 to 0) as MyOtherType
    ReDim Preserve UDT(0).Z(0 to 0) as MyOtherType

    State = "B"
    Dim myWithVariable
    If State = "A" Then
        myWithVariable = UDT(0).X(0)
    ElseIf State = "B" Then
        myWithVariable = UDT(0).Y(0)
    Else 
        myWithVariable = UDT(0).Z(0)
    End If
    With myWithVariable 
        .Name = "George"
        .Age = 30
    End With
End Sub