顯示用戶控件在Popoup

Question

我有一個按鈕，並放置在用戶控件 我想點擊的用戶控件的比頓時，下面的按鈕控制蹦出所有其他控件的TOPP另一個控制

Answer 1

你可以將任何類型的Control在ToolStripControlHost然後將其添加到ToolStripDropDown項目，然後顯示在下拉：

Dim dropdown As ToolStripDropDown = New ToolStripDropDown() 
Dim c As UserControl1 = New UserControl1() 
Dim host As ToolStripControlHost = New ToolStripControlHost(c) 
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _ 
    Handles Button2.Click 
    If (dropdown.Items.Count = 0) Then 
     host.BackColor = Color.White 
     host.Margin = New Padding(2) 
     c.MinimumSize = New Size(120, 100) 
     dropdown.Padding = New Padding(0) 
     dropdown.Margin = New Padding(0) 
     dropdown.Items.Add(host) 
    End If 
    dropdown.Show(Button2, 0, Button1.Height) 
End Sub