Updating listbox using a thread in

Sometimes it is not necessary to update the user interface that quickly. Send is a synchronous operation and will wait for an answer or action completed from the call, where as Post is asynchronous where it makes the call to the UI thread and continues without waiting for a reply.In this example it wouldn’t appear to make much difference which of the 2 you use, but we have used Post as we do not require to wait for a reply as we are just posting some data to be shown on the screen.Thank you can do in a shorter (most of the time) and simpler syntax, which one to use is up to you, or rather whichever you find easier to write, your example isn't that complex so both of those concepts should do the job, without any major performance Output. Although there are well know ways to update the GUI from a background thread not running in the GUI thread, I looked for an easiest to use solution. The final solution uses a Message Window inside a control based class with a worker thread.An GUI update from the worker thread is done with the help of Update List Box() and that invokes Worker Update and that function finally updates the GUI.So four places are tight together with function names and definitions. For example with declaring a delegate first and then Invoke from background thread (see here): But this solution also needs your background thread to know the delegate name (Set Text(string s)).When a task is finished, the form receives a progress report (that can be seen here as a notification) via the I have around 200 items in list-view, so would it create up-to 200 Tasks at once and start making requests to the web server ?

With my bg Thread classes (yes there are three predefined ones), you can simply use this construction: public partial class Thread Test2 : Form { private bg Thread _bg Thread; ... From the eventhandler you can directly update the GUI. The first class, bg Thread1 class, only uses the Int Ptr’s usable with Send Message to transfer data.After some experiments I got a background thread class that is very easy to use. As the control and the Message Window is part of the GUI thread, there is no need to use Invokes.Inside the thread I use Send Message to transfer background thread informations to the control, which then fires an event you can subscribe in the GUI thread.//start and link the thread private void btn_bg Thread Test_Click(object sender, Event Args e) void _bg Thread_bg Thread Event(object sender, bg Thread. //in your exit function you MUST dispose existing threads if (_bg Thread ! So you can transfer a maximum of two integers or so.In a previous article on async and await, I showed a very simple example of how to run some code asynchronously.

Search for updating listbox using a thread in:

updating listbox using a thread in-26updating listbox using a thread in-81updating listbox using a thread in-24updating listbox using a thread in-11

Leave a Reply

Your email address will not be published. Required fields are marked *

One thought on “updating listbox using a thread in”

  1. Despite police crackdowns and the courts handing out stiff sentences to those involved, nearly two thirds of boroughs in London report problems with Thai women working as sex workers in the UK sex industry.