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我需要在运行时从数据库中填充上下文菜单。我不知道列表中的项目数量，所以我想在一个地方处理点击事件。如何声明处理程序，以便知道哪个菜单项实际触发了点击。

Public Function GetBookmarkContextMenu(ByVal aBookmark As Bookmark) As System.Windows.Controls.ContextMenu

    Dim myContextMenu As New Controls.ContextMenu
    myContextMenu.Name = "BookmarkMenu" 

             For Each aMailingList As MasterService.FalconBookmarkMailingListType In GlobalUserSettings.MailingLists

                Dim mySubMenuItem As New Controls.MenuItem
                mySubMenuItem.Name = "MailingListName" & aMailingList.ID.ToString
                mySubMenuItem.Header = aMailingList.Title
                AddHandler (myMenuItem.Click), AddressOf ForwardToList_Click
                mySubMenuItem.IsEnabled = True
                myMenuItem.Items.Add(mySubMenuItem)
            Next
            myContextMenu.Items.Add(myMenuItem)

            return myContextMenu
End Function

Public Sub ForwardToList_Click()
    'How do I know which of the dynamically created items was clicked?
End Sub
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3 回答 3

2

无法添加评论，所以我将其放在这里。AundyKarthick 的出色回复很容易说明我的结果是这样的：

在这种情况下首先在表单上创建一个上下文菜单条 ContextMenuStrip1

Private Sub Form1_Load(sender As Object, e As System.EventArgs) Handles Me.Load
  NamesTableAdapter.Fill(DataSet.Names)
  For Each element In DataSet.Names
     Dim mnuitem As New ToolStripMenuItem
     mnuitem.Name = element.Item(1)
     mnuitem.Text = element.Item(1)
     AddHandler (mnuitem.Click), AddressOf ToolMenuItem_Click
     ContextMenuStrip1.Items.Add(mnuitem)
  Next
End Sub

Private Sub ToolMenuItem_Click(sender As Object, ByVal e As EventArgs) 
    textbox1.Text = sender.name
End Sub
于 2014-01-03T11:05:35.780 回答
1 
Dim mnuitm As New ToolStripMenuItem
mnuitm.Name = name_cbk.Items(i)
mnuitm.Text = name_cbk.Items(i)
AddHandler (mnuitm.Click), AddressOf item_Click
menulist.Items.Add(mnuitm)
于 2010-12-25T06:53:11.793 回答
0

您的 ForwardToList_Click() 应包含发送者和事件参数的参数：

Public Sub ForwardToList_Click(sender As Object, e As EventArgs)
'...
End Sub

“发件人”是导致事件的控件，我相信您正在寻找它。

于 2008-11-17T20:19:06.647 回答