遍历 VBA 下拉列表 [英] Iterate through VBA dropdown list

问题描述

我有三个下拉验证列表，我正在尝试编写一些代码来遍历所有可用的管理方法"排列.

我可以找出遍历一个列表的第一步(例如

这是遍历作物类型下拉列表，但返回相同的害虫和管理方法.我用来创建下拉列表的代码如下:

选项显式Private Sub Worksheet_Change(ByVal Target As Range)如果 Target.Cells.Count >1 然后退出子如果不相交(目标，范围(C6"))什么都没有范围(D6:E6").清除内容万一结束子

解决方案

执行将遍历所有可能组合的循环的最简单方法是使用 For Each 循环.您可以在此处和此处 和 这里 和 这里....... !!!等等....

这将遍历 3 个下拉列表的每个组合.您需要在我的代码中更改下拉菜单的位置.

Sub LoopThroughList()Dim Dropdown1、Dropdown2、Dropdown3 作为字符串将范围 1、范围 2、范围 3 调暗为范围将选项 1、选项 2、选项 3 调暗为范围' *** 在此处设置下拉位置 ***' ***************************************Dropdown1 =D8"Dropdown2 =E8"Dropdown3 = "F8"' ***************************************' ***************************************设置 Range1 = Evaluate(Range(Dropdown1).Validation.Formula1)设置 Range2 = Evaluate(Range(Dropdown2).Validation.Formula1)设置 Range3 = Evaluate(Range(Dropdown3).Validation.Formula1)对于范围 1 中的每个选项 1对于 Range2 中的每个 option2对于 Range3 中的每个 option3' *** 在这里执行代码 ***' 例子' Sheets(1).Cells(1, 1) = option1' Sheets(1).Cells(2, 1) = option2' 等等...下一个选项3下一个选项 2下一个选项 1结束子

Sub LoopThroughList()Dim Dropdown1、Dropdown2、Dropdown3 作为字符串将范围 1、范围 2、范围 3 调暗为范围将选项 1、选项 2、选项 3 调暗为范围Dim 计数器只要计数器 = 1' *** 在此处设置下拉位置 ***' ***************************************Dropdown1 = "C6"Dropdown2 =D6"Dropdown3 = "E6"' ***************************************' ***************************************设置 Range1 = Evaluate(Range(Dropdown1).Validation.Formula1)设置 Range2 = Evaluate(Range(Dropdown2).Validation.Formula1)设置 Range3 = Evaluate(Range(Dropdown3).Validation.Formula1)对于范围 1 中的每个选项 1对于 Range2 中的每个 option2对于 Range3 中的每个 option3Sheets(2).Cells(Counter, 1) = option1Sheets(2).Cells(Counter, 2) = option2Sheets(2).Cells(Counter, 3) = option3计数器 = 计数器 + 1下一个选项3下一个选项 2下一个选项 1结束子

I have three dropdown validation lists and I am trying to write some code that iterates through all of the "Management Methods" permutations that are available.

I can figure out the first step of iterating through one list (for example Iterate through an Excel dropdown/validation list and others) but I can't work out how to go through three of them.

Ideally, I would like this to be written in a way that works even if you add more options.

To achieve this I figure you want a way of counting how many options there are in each list and then iterating through from 0-n.

Any help would be much appreciated.

Sub LoopThroughList()
Dim Dropdown1, Dropdown2, Dropdown3 As String
Dim Range1, Range2, Range3 As Range
Dim option1, option2, option3 As Range

' *** SET DROPDOWN LOCATIONS HERE ***
' ***********************************

    Dropdown1 = "C6"
    Dropdown2 = "D6"
    Dropdown3 = "E6"

' ***********************************
' ***********************************

Set Range1 = Evaluate(Range(Dropdown1).Validation.Formula1)
Set Range2 = Evaluate(Range(Dropdown2).Validation.Formula1)
Set Range3 = Evaluate(Range(Dropdown3).Validation.Formula1)

For Each option1 In Range1
    For Each option2 In Range2
        For Each option3 In Range3

            Worksheets("Sheet1").Range("C6:E6").Copy
            With Sheets("Sheet2").Range("A" & Rows.Count).End(xlUp).Offset(1)
                .PasteSpecial Paste:=xlPasteColumnWidths
                .PasteSpecial Paste:=xlPasteValues
            End With


        Next option3
    Next option2
Next option1


End Sub

At the moment I get this:

This is iterating through the crop type dropdown but returning the same for pest and management methods. The code I used to create the dropdown list is as below:

Option Explicit

Private Sub Worksheet_Change(ByVal Target As Range)

    If Target.Cells.Count > 1 Then Exit Sub

    If Not Intersect(Target, Range("C6")) Is Nothing Then
        Range("D6:E6").ClearContents
    End If

End Sub

解决方案

The easiest way to perform loops that will iterate through every possible combination is to use a For Each loop. You can find more info about them here and here and here and here....... !!! Etcetera....

This will loop through every combination of 3 dropdown lists. You will need to change the location of the dropdowns in my code.

Sub LoopThroughList()
Dim Dropdown1, Dropdown2, Dropdown3 As String
Dim Range1, Range2, Range3 As Range
Dim option1, option2, option3 As Range

' *** SET DROPDOWN LOCATIONS HERE ***
' ***********************************

    Dropdown1 = "D8"
    Dropdown2 = "E8"
    Dropdown3 = "F8"

' ***********************************
' ***********************************

Set Range1 = Evaluate(Range(Dropdown1).Validation.Formula1)
Set Range2 = Evaluate(Range(Dropdown2).Validation.Formula1)
Set Range3 = Evaluate(Range(Dropdown3).Validation.Formula1)

For Each option1 In Range1
    For Each option2 In Range2
        For Each option3 In Range3

            ' *** PERFORM CODE HERE ***
            ' EXAMPLE
            ' Sheets(1).Cells(1, 1) = option1
            ' Sheets(1).Cells(2, 1) = option2
            ' etc...

        Next option3
    Next option2
Next option1


End Sub

EDIT:

Sub LoopThroughList()
Dim Dropdown1, Dropdown2, Dropdown3 As String
Dim Range1, Range2, Range3 As Range
Dim option1, option2, option3 As Range

Dim Counter As Long

Counter = 1

' *** SET DROPDOWN LOCATIONS HERE ***
' ***********************************

    Dropdown1 = "C6"
    Dropdown2 = "D6"
    Dropdown3 = "E6"

' ***********************************
' ***********************************

Set Range1 = Evaluate(Range(Dropdown1).Validation.Formula1)
Set Range2 = Evaluate(Range(Dropdown2).Validation.Formula1)
Set Range3 = Evaluate(Range(Dropdown3).Validation.Formula1)

For Each option1 In Range1
    For Each option2 In Range2
        For Each option3 In Range3

            Sheets(2).Cells(Counter, 1) = option1
            Sheets(2).Cells(Counter, 2) = option2
            Sheets(2).Cells(Counter, 3) = option3
            Counter = Counter + 1

        Next option3
    Next option2
Next option1


End Sub

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