我对这个答案做了一些假设，所以它可能不适合你开箱即用，但我认为它会让你在不使用任何 Thread.Sleep 电话的情况下走上正轨，因为我个人不喜欢故意放慢速度我的应用程序，但这确实是个人喜好。
所以对于我的示例，我只使用了一堆textboxes，因为我没有任何方便的图片可以摆弄。但基本上是为了让用户在移动发生时仍然可以与程序交互，我使用了一个由用户启动的后台工作线程，一旦启动它就会将textboxes 向下移动到用户告诉它停下来，否则它会碰到我编造的任意边界。所以理论上开始是你的应用程序中的空格键，我的停止是向集合中添加另一个控件。对于您的内容，您需要在添加任何内容之前以及在更新位置时锁定集合，但这取决于您的判断。
所以肉和土豆：
在表单设计器中，我有三个按钮，btnGo、btnStop 和 btnReset。下面的代码处理这些按钮上的点击事件，因此您需要先创建这些按钮才能工作。
Public Class Move_Test
'Flag to tell the program whether to continue or to stop the textboxes where they are at that moment.
Private blnStop As Boolean = False
'Worker to do all the calculations in the background
Private WithEvents bgWorker As System.ComponentModel.BackgroundWorker
'Controls to be moved.
Private lstTextBoxes As List(Of TextBox)
'Dictionary to hold the y positions of the textboxes.
Private dtnPositions As Dictionary(Of Integer, Integer)
Public Sub New()
' Default code. Must be present for VB.NET forms when overwriting the default constructor.
InitializeComponent()
' Here I instantiate all the pieces. The background worker to do the adjustments to the position collection, the list of textboxes to be placed and moved around the form
' and the dictionary of positions to be used by the background worker thread and UI thread to move the textboxes(because in VB.NET you can not adjust controls created on the UI thread from a background thread.
bgWorker = New System.ComponentModel.BackgroundWorker()
Me.lstTextBoxes = New List(Of TextBox)
Me.dtnPositions = New Dictionary(Of Integer, Integer)
For i As Integer = 0 To 10
Dim t As New TextBox()
t.Name = "txt" & i
t.Text = "Textbox " & i
'I used the tag to hold the ID of the textbox that coorelated to the correct position in the dictionary,
' technically you could use the same position for all of them for this example but if you want to make the things move at different speeds
' you will need to keep track of each individually and this would allow you to do it.
t.Tag = i
dtnPositions.Add(i, 10)
'Dynamically position the controls on the form, I used 9 textboxes so i spaced them evenly across the form(divide by 10 to account for the width of the 9th text box).
t.Location = New System.Drawing.Point(((Me.Size.Width / 10) * i) + 10, dtnPositions(i))
Me.lstTextBoxes.Add(t)
Next
'This just adds the controls to the form dynamically
For Each r In Me.lstTextBoxes
Me.Controls.Add(r)
Next
End Sub
Private Sub Move_Test_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Try
'Don't need to do anything here. Placeholder
Catch ex As Exception
MessageBox.Show("Error: " & ex.Message)
End Try
End Sub
Private Sub btnGo_Click(sender As Object, e As EventArgs) Handles btnGo.Click
Try
If Not bgWorker.IsBusy Then
'User starts the movement.
bgWorker.RunWorkerAsync()
End If
Catch ex As Exception
MessageBox.Show("Error: " & ex.Message)
End Try
End Sub
Private Sub btnReset_Click(sender As Object, e As EventArgs) Handles btnReset.Click
Try
'Reset the positions and everything else on the form for the next time through
' I don't set the blnStop value to true in here because it looked cooler to keep reseting the textboxes
' and have them jump to the top of the form and keep scrolling on their own...
For Each r In Me.lstTextBoxes
r.Location = New System.Drawing.Point(r.Location.X, 10)
Next
For i As Integer = 0 To dtnPositions.Count - 1
dtnPositions(i) = 10
Next
Catch ex As Exception
MessageBox.Show("Error: " & ex.Message)
End Try
End Sub
Private Sub bgWorker_DoWork(sender As Object, e As System.ComponentModel.DoWorkEventArgs) Handles bgWorker.DoWork
Try
'This is where we do all the work.
' For this test app all its doing is scrolling through each value in the dictionary and incrementing the value
' You could make the dictionary hold a custom class and have them throttle themselves using variables on the class(or maybe travel at an angle?)
For i As Integer = 0 To dtnPositions.Count - 1
dtnPositions(i) += 1
Next
Catch ex As Exception
blnStop = True
End Try
End Sub
Private Sub bgWorker_RunWorkerCompleted(sender As Object, e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles bgWorker.RunWorkerCompleted
Try
'Once the background worker is done updating the positions this function scrolls through the textboxes and assigns them their new positions.
' We have to do it in this event because we don't have access to the textboxes on the backgroun thread.
For Each r In Me.lstTextBoxes
r.Location = New System.Drawing.Point(r.Location.X, dtnPositions(CInt(r.Tag)))
Next
'use linq to find any textboxes whose position is beyond the threshhold that signifies they are down far enough.
' I chose the number 100 arbitrarily but it could really be anything.
Dim temp = From r In Me.lstTextBoxes Where r.Location.Y > (Me.Size.Height - 100)
'If we found any textboxes beyond our threshold then we set the top boolean
If temp IsNot Nothing AndAlso temp.Count > 0 Then
Me.blnStop = True
End If
'If we don't want to stop yet we fire off the background worker again and let the code go otherwise we set the stop boolean to false without firing the background worker
' so we will be all set to reset and go again if the user clicks those buttons.
If Not Me.blnStop Then
bgWorker.RunWorkerAsync()
Else
Me.blnStop = False
End If
Catch ex As Exception
MessageBox.Show("Error: " & ex.Message)
End Try
End Sub
Private Sub btnStop_Click(sender As Object, e As EventArgs) Handles btnStop.Click
Try
'The user clicked the stop button so we set the boolean and let the bgWorker_RunWorkerCompleted handle the rest.
Me.blnStop = True
Catch ex As Exception
MessageBox.Show("Error: " & ex.Message)
End Try
End Sub
End Class
那里有很多代码，但其中很多是 cmets，我试图尽可能清楚，所以它们可能有点啰嗦。但是您应该能够将该代码放在新表单上，并且无需任何更改即可工作。我的表格尺寸很大（1166 x 633）。所以我认为那是它最有效的时候，但任何尺寸都应该有效（较小的形式只会更混乱）。
如果这不适用于您的应用程序，请告诉我。