请高手看看关于variant的问题
我想判断getxdata返回的variant 是否empty，然后将里面的东西变成字符串返回，怎么不行啊？发生致命错误．请高手指点一下．Private Sub CommandButton2_Click()
Dim ssetObj As AcadSelectionSet
Dim elem As AcadObject
Dim DataType As Variant
Dim Data As Variant
On Error Resume Next
ThisDrawing.SelectionSets("text").Delete
Set ssetObj = ThisDrawing.SelectionSets.Add("text")
Err.Clear
On Error GoTo 0
' Add objects to a selection set by prompting user to select on the screen
'While (True)
selectagain:
ssetObj.SelectOnScreen
For Each elem In ssetObj
If Right(elem.ObjectName, 4) = "Text" Then
elem.GetXData ApplicationName, DataType, Data
If IsEmpty(Data)True Then
'Label1.Caption = CStr(Data(0)) + " " + CStr(Data(1)) + " " + CStr(Data(2))
Label1.Caption = CStr(Data(0))
End If
End If
Next
' Wend
If ssetObj.Count0 Then
ssetObj.Clear
GoTo selectagain
End If
ssetObj.Delete
End Sub
用If IsArray(DataType) then就可以了
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