VBA 命令按钮数组
VBA Command Button array
我目前正在进行一个项目，我将选择最多 5 个项目进行相互比较，结果显示在最大 5x5 的动态网格中。我的 objective 是让这个网格由命令按钮组成，每个按钮的标题是行和列项目之间的相似度百分比，单击按钮时，行和列之间的共同单位项目将显示在消息框中。
我或多或少知道如何生成实际的按钮阵列。但是，我读过的所有内容都表明我需要创建一个 class 来处理按钮点击，因为我不想制作 20 个都具有相同代码的子例程。我无法让这个 class 正常工作，我可以使用一些技巧。这是我到目前为止所拥有的。
在名为 DynButton 的 class 模块中：
Public Withevents CBevents as MSForms.CommandButton
Private Sub CBevents_Click()
DisplayOverlappedUnits 'Sub that will display the units that are the same
'between items i and j- may use Application.Caller
End Sub
在用户表单中：
Private Sub Userform_Initialize()
Dim NumItems as integer
Dim ComparisonArray() as DynButton
Dim ctlButton as MSForms.CommandButton
'QuestionList() is a public type that stores various attributes of the
'items I'm comparing.
'This code determines how many items were selected for comparison
'and resets the item array accordingly.
NumItems=0
For i=1 to 5
If QuestionList(i).Length>0 Then
NumItems=Numitems+1
QuestionList(NumItems)=QuestionList(i)
End If
Next
Redim ComparisonArray(1 to NumItems, 1 to NumItems)
For i = 1 to NumItems
For j=1 to NumItems
Set ctlButton=Me.Controls.Add("Forms.CommandButton.1", Cstr(i) & Cstr(j) & cb)
With ctlButton
.Height= CB_HEIGHT 'These are public constants defined elsewhere.
.Width= CB_WIDTH
.Top= TOP_OFFSET + (i * (CB_HEIGHT+ V_PADDING))
If i = j Then .visible = False
.Caption= CalculateOverlap(i,j) 'Runs a sub that calculates the overlap between items i and j
End With
Set ComparisonArray(i,j).CBevents = ctlButton
Next
Next
End Sub
目前，当我点击 Set ComparisonArray 行时，我得到一个 "Object with or Block variable not set"，但我遇到了困难。我只是在 class 模块中遗漏了什么吗？先谢谢您的帮助。
编辑添加：我尝试对本文的部分 class 代码进行建模，但同样我还没有让它工作。 http://www.siddharthrout.com/index.php/2018/01/15/vba-control-arrays/
您的代码看起来正确且有趣。我能看到的唯一（错误）是：
Redim ComparisonArray(1 to NumItems, 1 to NumItems)
...
Set ComparisonArray(i,j).CBevents = ctlButton
问题是您的数组包含空引用。您还没有创建 DynButton 对象。您必须在数组中显式创建对象。
Redim ComparisonArray(1 to NumItems, 1 to NumItems)
For i = 1 to NumItems
For j = 1 to NumItems
Set ComparisonArray(i,j) = new DynButton
Next
Next
...
Set ComparisonArray(i,j).CBevents = ctlButton
此外，将数组 ComparisonArray 声明为窗体的成员对象，而不是 Form_Initialize 中的局部变量。
Private Sub Userform_Initialize()
Dim NumItems as integer
Dim ComparisonArray() as DynButton '<<<< should be a Global variable
一旦 Userform_Initialize 完成，ComparisonArray() 将超出范围并且不再存在：您需要在表单中将其设为全局变量，以便它可以处理任何事件.
只能复制粘贴
Option Private Module
Option Explicit
Private Const i_total_channels As Integer = 100
Sub createArrayOfbuttons()
Application.ScreenUpdating = False
f_create_buttons 5, 5, 30, 5, True
End Sub
Sub clearArrayOfButtos()
Application.ScreenUpdating = False
f_clear_array_of_buttons
End Sub
Private Function f_create_buttons(Optional posLeft As Integer = 0, Optional posTop As Integer = 0, _
Optional sizeSquare As Integer = 20, Optional distBetween As Integer, Optional buttonColor As Boolean = False)
'create customized buttons to channel choice.
Dim i_ch_amount_x As Integer
Dim i_ch_amount_y As Integer
Dim i_size_X 'size of square button
Dim i_size_Y 'size of square button
Dim i_stp_X As Integer 'step in X
Dim i_stp_Y As Integer 'step in Y
Dim i_dist_bte_buttons As Integer 'distance between buttons, in X and Y
Dim i_pos_ini_X As Integer 'initial position
Dim i_pos_ini_Y As Integer
Dim it_x As Integer 'iterator
Dim it_y As Integer 'iterator
Dim amount As Integer 'channel acumulator
Dim FO_color As Integer 'index from 1 to 12 to change background color of button
f_clear_array_of_buttons
i_pos_ini_X = posLeft
i_pos_ini_Y = posTop
'create dimensions of square
i_size_X = sizeSquare
i_size_Y = i_size_X 'to create a square Y need same size of X
'distance between squares
i_dist_bte_buttons = i_size_X + distBetween 'to shift distance change laste value of expression
i_stp_X = i_pos_ini_X
i_stp_Y = i_pos_ini_Y
i_ch_amount_x = Int(Sqr(i_total_channels)) 'total channels in switch (i_ch_amount_y * i_ch_amount_x)
i_ch_amount_y = i_ch_amount_x
amount = 1
FO_color = 1
For it_y = 1 To i_ch_amount_x
For it_x = 1 To i_ch_amount_y
f_create_button amount, i_stp_X, i_stp_Y, CSng(i_size_X), CSng(i_size_Y), FO_color
i_stp_X = i_stp_X + i_dist_bte_buttons
amount = amount + 1
If buttonColor Then
FO_color = FO_color + 1
End If
If FO_color > 12 Then 'return FO to 1
FO_color = 1
End If
Next it_x
i_stp_X = i_pos_ini_X
i_stp_Y = i_stp_Y + i_dist_bte_buttons
Next it_y
amount = 0
i_ch_amount_x = 0
i_ch_amount_y = 0
i_size_X = 0
i_size_Y = 0
i_stp_X = 0
i_stp_Y = 0
i_pos_ini_X = 0
i_pos_ini_Y = 0
i_dist_bte_buttons = 0
FO_color = 0
End Function
Private Function f_create_button(index As Integer, posLeft As Integer, posRight As Integer, _
Box_width As Single, Box_height As Single, Optional FO As Integer)
ActiveSheet.Shapes.AddShape(msoShapeRectangle, posLeft, posRight, Box_width, Box_height). _
Select
With Selection
.Name = "ch_" & index
.Text = index
.Font.Name = "Arial"
.Font.Bold = True
If FO = 9 Then
.Font.Color = vbWhite
Else
.Font.ColorIndex = xlAutomatic
End If
.Font.Size = 10
.Interior.Color = fiber_color(FO)
.HorizontalAlignment = xlCenter
.VerticalAlignment = xlCenter
End With
End Function
Public Function fiber_color(Optional FO As Integer = 1) As Long
'use with a index in FO from 1 to 12
Select Case FO
Case 1
fiber_color = 65280 'green
Case 2
fiber_color = 65535 'yellow
Case 3
fiber_color = 16777215 'white
Case 4
fiber_color = 16711680 'blue
Case 5
fiber_color = 255 'red
Case 6
fiber_color = 16711823 'violt
Case 7
fiber_color = 19350 'brown
Case 8
fiber_color = 13353215 'pink
Case 9
fiber_color = 0 'black
Case 10
fiber_color = 16711680 'cinza
Case 11
fiber_color = 32767 'orange
Case 12
fiber_color = 16776960 'aqua
Case Else
fiber_color = 65280 'verde
End Select
End Function
Private Function f_clear_array_of_buttons()
Dim i_ch_amount_x As Integer
Dim it As Integer
i_ch_amount_x = i_total_channels
On Error GoTo sair
If ActiveSheet.Shapes.Count <> 0 Then
For it = 1 To i_ch_amount_x
ActiveSheet.Shapes("ch_" & it).Delete
Next it
End If
sair:
i_ch_amount_x = 0
it = 0
End Function
我目前正在进行一个项目，我将选择最多 5 个项目进行相互比较，结果显示在最大 5x5 的动态网格中。我的 objective 是让这个网格由命令按钮组成，每个按钮的标题是行和列项目之间的相似度百分比，单击按钮时，行和列之间的共同单位项目将显示在消息框中。
我或多或少知道如何生成实际的按钮阵列。但是，我读过的所有内容都表明我需要创建一个 class 来处理按钮点击，因为我不想制作 20 个都具有相同代码的子例程。我无法让这个 class 正常工作，我可以使用一些技巧。这是我到目前为止所拥有的。
在名为 DynButton 的 class 模块中：
Public Withevents CBevents as MSForms.CommandButton
Private Sub CBevents_Click()
DisplayOverlappedUnits 'Sub that will display the units that are the same
'between items i and j- may use Application.Caller
End Sub
在用户表单中：
Private Sub Userform_Initialize()
Dim NumItems as integer
Dim ComparisonArray() as DynButton
Dim ctlButton as MSForms.CommandButton
'QuestionList() is a public type that stores various attributes of the
'items I'm comparing.
'This code determines how many items were selected for comparison
'and resets the item array accordingly.
NumItems=0
For i=1 to 5
If QuestionList(i).Length>0 Then
NumItems=Numitems+1
QuestionList(NumItems)=QuestionList(i)
End If
Next
Redim ComparisonArray(1 to NumItems, 1 to NumItems)
For i = 1 to NumItems
For j=1 to NumItems
Set ctlButton=Me.Controls.Add("Forms.CommandButton.1", Cstr(i) & Cstr(j) & cb)
With ctlButton
.Height= CB_HEIGHT 'These are public constants defined elsewhere.
.Width= CB_WIDTH
.Top= TOP_OFFSET + (i * (CB_HEIGHT+ V_PADDING))
If i = j Then .visible = False
.Caption= CalculateOverlap(i,j) 'Runs a sub that calculates the overlap between items i and j
End With
Set ComparisonArray(i,j).CBevents = ctlButton
Next
Next
End Sub
目前，当我点击 Set ComparisonArray 行时，我得到一个 "Object with or Block variable not set"，但我遇到了困难。我只是在 class 模块中遗漏了什么吗？先谢谢您的帮助。
编辑添加：我尝试对本文的部分 class 代码进行建模，但同样我还没有让它工作。 http://www.siddharthrout.com/index.php/2018/01/15/vba-control-arrays/
您的代码看起来正确且有趣。我能看到的唯一（错误）是：
Redim ComparisonArray(1 to NumItems, 1 to NumItems)
...
Set ComparisonArray(i,j).CBevents = ctlButton
问题是您的数组包含空引用。您还没有创建 DynButton 对象。您必须在数组中显式创建对象。
Redim ComparisonArray(1 to NumItems, 1 to NumItems)
For i = 1 to NumItems
For j = 1 to NumItems
Set ComparisonArray(i,j) = new DynButton
Next
Next
...
Set ComparisonArray(i,j).CBevents = ctlButton
此外，将数组 ComparisonArray 声明为窗体的成员对象，而不是 Form_Initialize 中的局部变量。
Private Sub Userform_Initialize()
Dim NumItems as integer
Dim ComparisonArray() as DynButton '<<<< should be a Global variable
一旦 Userform_Initialize 完成，ComparisonArray() 将超出范围并且不再存在：您需要在表单中将其设为全局变量，以便它可以处理任何事件.
只能复制粘贴
Option Private Module
Option Explicit
Private Const i_total_channels As Integer = 100
Sub createArrayOfbuttons()
Application.ScreenUpdating = False
f_create_buttons 5, 5, 30, 5, True
End Sub
Sub clearArrayOfButtos()
Application.ScreenUpdating = False
f_clear_array_of_buttons
End Sub
Private Function f_create_buttons(Optional posLeft As Integer = 0, Optional posTop As Integer = 0, _
Optional sizeSquare As Integer = 20, Optional distBetween As Integer, Optional buttonColor As Boolean = False)
'create customized buttons to channel choice.
Dim i_ch_amount_x As Integer
Dim i_ch_amount_y As Integer
Dim i_size_X 'size of square button
Dim i_size_Y 'size of square button
Dim i_stp_X As Integer 'step in X
Dim i_stp_Y As Integer 'step in Y
Dim i_dist_bte_buttons As Integer 'distance between buttons, in X and Y
Dim i_pos_ini_X As Integer 'initial position
Dim i_pos_ini_Y As Integer
Dim it_x As Integer 'iterator
Dim it_y As Integer 'iterator
Dim amount As Integer 'channel acumulator
Dim FO_color As Integer 'index from 1 to 12 to change background color of button
f_clear_array_of_buttons
i_pos_ini_X = posLeft
i_pos_ini_Y = posTop
'create dimensions of square
i_size_X = sizeSquare
i_size_Y = i_size_X 'to create a square Y need same size of X
'distance between squares
i_dist_bte_buttons = i_size_X + distBetween 'to shift distance change laste value of expression
i_stp_X = i_pos_ini_X
i_stp_Y = i_pos_ini_Y
i_ch_amount_x = Int(Sqr(i_total_channels)) 'total channels in switch (i_ch_amount_y * i_ch_amount_x)
i_ch_amount_y = i_ch_amount_x
amount = 1
FO_color = 1
For it_y = 1 To i_ch_amount_x
For it_x = 1 To i_ch_amount_y
f_create_button amount, i_stp_X, i_stp_Y, CSng(i_size_X), CSng(i_size_Y), FO_color
i_stp_X = i_stp_X + i_dist_bte_buttons
amount = amount + 1
If buttonColor Then
FO_color = FO_color + 1
End If
If FO_color > 12 Then 'return FO to 1
FO_color = 1
End If
Next it_x
i_stp_X = i_pos_ini_X
i_stp_Y = i_stp_Y + i_dist_bte_buttons
Next it_y
amount = 0
i_ch_amount_x = 0
i_ch_amount_y = 0
i_size_X = 0
i_size_Y = 0
i_stp_X = 0
i_stp_Y = 0
i_pos_ini_X = 0
i_pos_ini_Y = 0
i_dist_bte_buttons = 0
FO_color = 0
End Function
Private Function f_create_button(index As Integer, posLeft As Integer, posRight As Integer, _
Box_width As Single, Box_height As Single, Optional FO As Integer)
ActiveSheet.Shapes.AddShape(msoShapeRectangle, posLeft, posRight, Box_width, Box_height). _
Select
With Selection
.Name = "ch_" & index
.Text = index
.Font.Name = "Arial"
.Font.Bold = True
If FO = 9 Then
.Font.Color = vbWhite
Else
.Font.ColorIndex = xlAutomatic
End If
.Font.Size = 10
.Interior.Color = fiber_color(FO)
.HorizontalAlignment = xlCenter
.VerticalAlignment = xlCenter
End With
End Function
Public Function fiber_color(Optional FO As Integer = 1) As Long
'use with a index in FO from 1 to 12
Select Case FO
Case 1
fiber_color = 65280 'green
Case 2
fiber_color = 65535 'yellow
Case 3
fiber_color = 16777215 'white
Case 4
fiber_color = 16711680 'blue
Case 5
fiber_color = 255 'red
Case 6
fiber_color = 16711823 'violt
Case 7
fiber_color = 19350 'brown
Case 8
fiber_color = 13353215 'pink
Case 9
fiber_color = 0 'black
Case 10
fiber_color = 16711680 'cinza
Case 11
fiber_color = 32767 'orange
Case 12
fiber_color = 16776960 'aqua
Case Else
fiber_color = 65280 'verde
End Select
End Function
Private Function f_clear_array_of_buttons()
Dim i_ch_amount_x As Integer
Dim it As Integer
i_ch_amount_x = i_total_channels
On Error GoTo sair
If ActiveSheet.Shapes.Count <> 0 Then
For it = 1 To i_ch_amount_x
ActiveSheet.Shapes("ch_" & it).Delete
Next it
End If
sair:
i_ch_amount_x = 0
it = 0
End Function