一首先創建一個Button類型控件數組
．創建Windows應用程序類型的工程添加名為ButtonArray的類並使該類繼承 SystemCollectionCollectionBase 類SystemCollectionsCollectionBase類是NET框架類庫中為集合操作提供抽象的基類通過對它的繼承可以為我們的ButtonArray類具備集合增加刪除索引的功能
．為ButtonArray類添加ParentForm屬性即控件組所在窗體創建初始化函數（構造函數）
．為控件數組類增加AddItem方法該方法在控件數組類中添加成員
．為控件數組類增加RemoveItem方法該方法在控件數組中刪除一個成員
示例代碼
Public Class ButtonArray
Inherits SystemCollectionsCollectionBase
Private ReadOnly ParentForm As SystemWindowsFormsForm
Public Sub New(ByVal pForm As SystemWindowsFormsForm)
ParentForm = pForm
End Sub
Default Public ReadOnly Property Item(ByVal index As Integer) As SystemWindowsFormsButton
Get
Return MeListItem(index) ButtonArray的List 屬性從CollectionBase 繼承
End Get
End Property
Public Sub AddItem()
Dim btnItem As New SystemWindowsFormsButton
MeListAdd(btnItem)
ParentFormControlsAdd(btnItem) 向窗體中增加控件
btnItemTag = MeCount Count屬性從CollectionBase 繼承
btnItemTop = MeCount *
btnItemLeft =
btnItemText = Button & MeCountToString
AddHandler btnItemClick AddressOf btnItem_Click 綁定事件處理程序
End Sub
Public Sub AddItem(ByVal btnItem As SystemWindowsFormsButton)
MeListAdd(btnItem)
AddHandler btnItemClick AddressOf btnItem_Click 綁定事件處理程序
End Sub
Public Sub RemoveItem()
If MeCount > Then
ParentFormControlsRemove(Me(MeCount ))
MeListRemoveAt(MeCount )
End If
End Sub
Public Sub btnItem_Click(ByVal sender As Object ByVal e As SystemEventArgs)
在這裡編寫控件數組對點擊事件的響應
例如
MsgBox(點擊 & senderGetType()ToString & CType(CType(sender Button)Tag String))
End Sub
End Class
二使用創建的控件數組
在Form中放置兩個按鈕ButtonButton分別測試控件數組的增添刪除
雙擊Form添加代碼
Public Class Form
Inherits SystemWindowsFormsForm
Windows窗體設計器生成的代碼
Dim Buttons As New ButtonArray(Me)
Private Sub Button_Click(ByVal sender As SystemObject ByVal e As SystemEventArgs) Handles ButtonClick
ButtonsAddItem()
End Sub
Private Sub Button_Click(ByVal sender As SystemObject ByVal e As SystemEventArgs) Handles ButtonClick
ButtonsRemoveItem()
End Sub
End Class
其他的控件數組也可以用類似的方式來實現
例如 Label控件數組
LabelArrayvb代碼如下
Public Class LabelArray
Inherits SystemCollectionsCollectionBase
Private ReadOnly ParentForm As SystemWindowsFormsForm
Public Sub New(ByVal pForm As SystemWindowsFormsForm)
ParentForm = pForm
End Sub
Default Public ReadOnly Property Item(ByVal index As Integer) As SystemWindowsFormsLabel
Get
Return MeListItem(index) ButtonArray的List 屬性從CollectionBase 繼承
End Get
End Property
Public Sub AddItem(ByVal btnItem As SystemWindowsFormsLabel)
MeListAdd(btnItem)
AddHandler btnItemClick AddressOf btnItem_Click 綁定事件處理程序
End Sub
Public Sub btnItem_Click(ByVal sender As Object ByVal e As SystemEventArgs)
在這裡編寫控件數組對點擊事件的響應
例如
MsgBox(點擊 & senderGetType()ToString & CType(CType(sender Label)Tag String))
End Sub
End Class
三使用創建的Label控件
在Form中放置兩個按鈕LabelLabel
雙擊Form添加代碼
Public Class Form
Inherits SystemWindowsFormsForm
#Region Windows 窗體設計器生成的代碼
Public Sub New()
MyBaseNew()
該調用是 Windows 窗體設計器所必需的
InitializeComponent()
在 InitializeComponent() 調用之後添加任何初始化
用來綁定label
BindArray()
End Sub
Windows窗體設計器生成的其他代碼
#End Region
Dim Labels As New LabelArray(Me)
Public Sub BindArray()
MeLabelTag =
MeLabelTag =
LabelsAddItem(MeLabel)
LabelsAddItem(MeLabel)
End Sub
End Class
然後可以測試點擊兩個label可以顯示相應的Tag的信息
From:http://tw.wingwit.com/Article/program/net/201311/15141.html
