Pausing my display

[mil1234]

Hi to all,
below i attached the sub i did using application.DoEvents and Thread.sleep so that letters(characters i'm generating in a richtextbox go into the same richtextbox with slow motion.Now i want that i do a button named (PAUSE),
by which i can pause this process or a checkbox which when checked the animation is displayed.i guesses something like while checkbox.checked = true
thread.sleep
application.doEvents
will work out for me but it didn't.Pls find below my code::any help is greatly appreciated::

' Display chars one by one in the RichTextBox during a interval of time.
' This interval produces the animation
Private Sub display_slow_motion(ByRef str As String)
RichTextBox1.Clear()
quit = False
For i As Integer = 0 To str.Length - 1
RichTextBox1.Text += str(i)
If quit Then
Exit For
Else
Thread.Sleep(speed)
Application.DoEvents()
End If
Next
End Sub

 

[TyB]

Look at this.

Not sure if I understand you method but, here is a link about thread sleep.

Thread.Sleep is a sign of a poorly designed program. - Peter Ritchie's MVP Blog

Why not just use a timer to place the letters one at a time in the tick event?

If that does not work you could play with async threading. Here is an excellent article that I used to create my threading processing.

Developing Long Running Tasks Using Asynchronous Programming with VB.NET 2005

Ty