如何检查VBA中的数组是否为空？ [英] How to check if an array is empty in VBA?

问题描述

我有一个函数，该函数检查数组是否为空。从今天开始，我遇到了运行时错误9。我不知道为什么。

I have a function, which checks whether the array is empty or not. Since today I'm getting an runtime error 9. I don't know why.

这里是代码：

When db table contains data, pass it to the variable => arrItems
arrItems as Variant
ArrEmpty as Boolean

With rs
  If Not .EOF Then
      arrItems = .GetRows
      .Close
  End If
End With

ArrEmpty = IsArrayEmpty(arrItems) 

Private Function IsArrayEmpty(parArray As Variant) As Boolean
    IsArrayEmpty = IIf(UBound(parArray) > 0, False, True) //Here is invoked the runtime error 9
End Function

如何检查数组是否为空？

How can I check if the array is empty?

推荐答案

好，我没有找到更好的解决方案像这样：

Ok I haven't found a better solution like this:

With rs
  If Not .EOF Then
      arrItems = .GetRows
  Else
      arrItems = Array()
  End If
  .Close
End With

ArrEmpty = IsArrayEmpty(arrItems) 

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