我正在使用多个ComboBox'在excel中创建用户表单。第一个ComboBox列出了表的第1列和以下ComboBox的值。列出以下列中的值。 ComboBox 2以后也只列出取决于前一个框的值。所有ComboBox'仅显示唯一值。
以下是我正在使用的当前代码:
Option Explicit
Private Sub ComboBox1_Change()
Call cValues(ComboBox1.Value, ComboBox2, 2)
End Sub
Private Sub ComboBox2_Change()
Call cValues(ComboBox2.Value, ComboBox3, 3)
End Sub
Private Sub ComboBox3_Change()
Call cValues(ComboBox3.Value, ComboBox4, 4)
End Sub
Private Sub ComboBox4_Change()
Call cValues(ComboBox4.Value, ComboBox5, 5)
End Sub
Private Sub ComboBox5_Change()
Call cValues(ComboBox5.Value, ComboBox6, 6)
End Sub
Private Sub UserForm_Initialize()
Dim Rng As Range
Dim Dn As Range
Dim Dic As Object
With Sheets("Listuni")
Set Rng = .Range(.Range("A2"), .Range("A" & Rows.Count).End(xlUp))
End With
Set Dic = CreateObject("scripting.dictionary")
Dic.CompareMode = vbTextCompare
For Each Dn In Rng: Dic(Dn.Value) = Empty: Next
Me.ComboBox1.List = Application.Transpose(Dic.keys)
End Sub
Sub cValues(txt As String, Obj As Object, col As Integer)
Dim Dn As Range
Dim Rng As Range
Dim Dic As Object
With Sheets("Listuni")
Set Rng = .Range(.Cells(2, col), .Cells(Rows.Count, col).End(xlUp))
End With
Set Dic = CreateObject("Scripting.Dictionary")
Dic.CompareMode = 1
For Each Dn In Rng
If Dn.Offset(, -1).Value = txt Then
If Not Dic.exists(Dn.Value) Then
Dic(Dn.Value) = Empty
End If
End If
Next Dn
Obj.List = Application.Transpose(Dic.keys)
End Sub
当用户重新选择前面的ComboBox时,我遇到了问题。所有现有选择都保留,而不是清除后续框。
我正在寻找一种方法来清除/默认每次重新选择前一个ComboBox时后续ComboBox的值。例如,如果我在ComboBox 1和2中进行选择,但随后在ComboBox 1中更改我的选择,我希望ComboBox 2清除而不是显示我之前的选择。请注意,启动时用户表单的默认位置在任何ComboBox中都不显示任何值。
我尝试过使用.clear方法进行更改,但这总是挂在:
Obj.List = Application.Transpose(Dic.keys)
我怀疑这是因为明确在技术上是一种变化,因此它无法根据空值将值列表转换为其他框。
答案 0 :(得分:2)
这将清除所有后续的ComboBox - 如果Combo1更改,则清除Combo2,3,4,5和6
Option Explicit
Private ws As Worksheet
Private d As Object
Private Sub UserForm_Initialize()
Dim cel As Range, txt As String, rng As Range
Set ws = Worksheets("Listuni")
Set d = CreateObject("Scripting.Dictionary"): d.CompareMode = vbTextCompare
Set rng = ws.Range(ws.Cells(2, 1), ws.Cells(ws.Rows.Count, 1).End(xlUp))
For Each cel In rng: d(cel.Value) = Empty: Next
ComboBox1.List = Application.Transpose(d.keys)
End Sub
Private Function setList(ByVal txt As String, ByRef cmb As ComboBox) As Object
Dim xID As Long, rng As Range, cel As Range, x As Control
xID = Right(cmb.Name, 1)
For Each x In Me.Controls
If TypeName(x) = "ComboBox" Then If Val(Right(x.Name, 1)) > xID - 1 Then x.Clear
Next
Set rng = ws.Range(ws.Cells(2, xID), ws.Cells(ws.Rows.Count, xID).End(xlUp))
d.RemoveAll
For Each cel In rng
If cel.Offset(, -1) = txt Then
If Not d.exists(cel.Value) Then
d(cel.Value) = Empty
End If
End If
Next
If d.Count > 0 Then cmb.List = Application.Transpose(d.keys) Else cmb.Clear
End Function
Private Sub ComboBox1_Change()
setList ComboBox1.Value, ComboBox2
End Sub
Private Sub ComboBox2_Change()
setList ComboBox2.Value, ComboBox3
End Sub
Private Sub ComboBox3_Change()
setList ComboBox3.Value, ComboBox4
End Sub
Private Sub ComboBox4_Change()
setList ComboBox4.Value, ComboBox5
End Sub
Private Sub ComboBox5_Change()
setList ComboBox5.Value, ComboBox6
End Sub