VBA执行时间过长

时间:2018-06-12 18:47:27

标签: excel vba

 

我写了一个宏来清除活动单元格行的内容,然后调用一个模块来移动剩余的行。我正在经历漫长的等待时间让宏完成运行。不确定这是否可以写得更好,以便更快地执行。当用户单击用户表单上的“删除客户端”时,将调用第一个模块。任何帮助,将不胜感激。谢谢!

'Called when user clicks Remove Client on User Form
Sub letsgo()

Dim ws As Worksheet
Dim wb As Workbook
Set wb = ThisWorkbook
Set ws = wb.Sheets("contactunder")

ws.Range("C" & ActiveCell.Row & ":BJ" & ActiveCell.Row).ClearContents

Call shiftmeup
End Sub

Sub shiftmeup()

Dim ws As Worksheet
Dim wb As Workbook
Set wb = ThisWorkbook
Set ws = wb.Sheets("contactunder") '/// The underhood of my contacts

With ws.Range("D11:BJ392")
For i = .Rows.Count To 1 Step -1
If IsEmpty(.Cells(i, 1)) Then .Rows(i).Delete Shift:=xlUp
Next
End With
End Sub

2 个答案:

答案 0 :(得分:2)

为什么不改变这一行:

ws.Range("C" & ActiveCell.Row & ":BJ" & ActiveCell.Row).ClearContents

对此:

ws.Range("C" & ActiveCell.Row & "BJ" & ActiveCell.Row).EntireRow.Delete

通过这种方式,您可以避免将第二个子组合在一起(或者将其保留为偶尔使用的清洁器,而不是每次只需删除1行时运行它。)

如果你确实需要两个潜艇,效率的常见第一步是在使用Application.ScreenUpdating = False进入循环之前禁用屏幕更新,然后在循环结束时通过将False更改为重新激活它True

答案 1 :(得分:0)

这是urdearboy答案的后续行动......

问题在于您的第二个功能和使用的静态范围。您删除了最后的所有行,超过了您的数据(最多约380个额外的删除行调用)。要解决它,你应该做两件事

  1. 仅循环到最后一行数据
  2. 限制对前端的呼叫;将要删除的所有单元格放入一个范围并删除一次
  3. Sub ShiftMeUp()
    Dim wb As Workbook
    Dim ws As Worksheet
    Dim DeleteRowRange As Range
        Set wb = ThisWorkbook
        Set ws = wb.Sheets("contactunder") '/// The underhood of my contacts
    
        For i = 1 To GetLastRow(1, ws)
            If IsEmpty(ws.Cells(i, 1)) Then Set DeleteRowRange = MakeUnion(ws.Rows(i), DeleteRowRange)
        Next
        If Not DeleteRowRange Is Nothing Then DeleteRowRange.EntireRow.Delete Shift:=xlUp
    End Sub
    

    我在常用函数上使用2来保持代码清洁......

    <强> MakeUnion

    Public Function MakeUnion(Arg1 As Range, Arg2 As Range) As Range
        If Arg1 Is Nothing Then
            Set MakeUnion = Arg2
        ElseIf Arg2 Is Nothing Then
            Set MakeUnion = Arg1
        Else
            Set MakeUnion = Union(Arg1, Arg2)
        End If
    End Function
    

    <强> GetLastRow

    Public Function GetLastRow(Optional Col As Integer = 1, Optional Sheet As Excel.Worksheet) As Long
        If Sheet Is Nothing Then Set Sheet = Application.ActiveSheet
        GetLastRow = Sheet.Cells(Sheet.Rows.Count, Col).End(xlUp).Row
    End Function
    
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