主题：窗口中的table 这两个的数据如何做到自动求和

Dim str1 As String = ""
Dim t As Table = CurrentTable
Dim hadString As Boolean = False
For i As Integer = t.LeftCol To t.RightCol
    If t.cols(i).IsString Then
        hadString = True
        Exit For
    End If
Next
Str1 = Str1 & "计数:" & t.Aggregate(AggregateEnum.Count, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
If hadString = False Then
    Str1 = Str1 & "累计:" & t.Aggregate(AggregateEnum.Sum, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "平均:" & t.Aggregate(AggregateEnum.Average, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "最大:" & t.Aggregate(AggregateEnum.Max, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "最小:" & t.Aggregate(AggregateEnum.Min, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "标准差:" & t.Aggregate(AggregateEnum.Std, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "总体标准差:" & t.Aggregate(AggregateEnum.StdPop, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "方差:" & t.Aggregate(AggregateEnum.Var, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "总体方差:" & t.Aggregate(AggregateEnum.VarPop, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
End If

StatusBar.Message3 = str1

上面代码运行会出错

用下代码就不出错

Dim str1 As String = ""
Dim t As Table = CurrentTable
Dim hadString As Boolean = False
For i As Integer = t.LeftCol To t.RightCol
    If t.cols(i).IsString Then
        hadString = True
        Exit For
    End If
Next
‘Str1 = Str1 & "计数:" & t.Aggregate(AggregateEnum.Count, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
If hadString = False Then

    Str1 = Str1 & "计数:" & t.Aggregate(AggregateEnum.Count, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "累计:" & t.Aggregate(AggregateEnum.Sum, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "平均:" & t.Aggregate(AggregateEnum.Average, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "最大:" & t.Aggregate(AggregateEnum.Max, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "最小:" & t.Aggregate(AggregateEnum.Min, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "标准差:" & t.Aggregate(AggregateEnum.Std, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "总体标准差:" & t.Aggregate(AggregateEnum.StdPop, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "方差:" & t.Aggregate(AggregateEnum.Var, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
    Str1 = Str1 & "总体方差:" & t.Aggregate(AggregateEnum.VarPop, t.TopRow, t.LeftCol, t.BottomRow, t.RightCol) & " "
End If

StatusBar.Message3 = str1