Databases
StackOverflow2013
Postsdbo
POExecute the last thread in threadloop
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POExecute the last thread in threadloop
    primarykey
    data
    text
    <p>I am implementing a comic reader in C# 4.0, and browsing from one image to the next takes some time because of some processes I implemented. </p> <p>Therefore, I implemented it in such a way that the UI thread will show first the unprocessed image whilst the background thread is processing the image and will later replace the unprocessed image.</p> <p>It all works fine but now, some users will crazily like to click next image continusly and this causes the background worker to processes all those clicks and display all the images.</p> <p>WHAT I WANT: if a user clicks multiple times, I want the background worker to process the last thread only.</p> <p>WHAT I HAVE DONE: Now, I have implemented a function to check the number of active threads, if the active threads is greater than 1, background thread will not process but returns the previous image(THAT IS NOT GOOD, because the unprocessed image will be one index ahead)</p> <p>If you have idea please explain to me like a beginner!</p> <pre><code>private void button4_Click(object sender, EventArgs e) { Bitmap b = new Bitmap(this.CurrImage); if (!shutdown) { process_updateThread = new Thread(new ThreadStart(process_update)); process_updateThread.Start(); } pictureBox1.Image = b; //image will be replaced by worker thread image pictureBox1.Location = ImageEdit.CalculateLocationImage(b); SetBackColor(b); ShowPageCount(); updateNavButtons(); } void StopThread() { if(((IEnumerable)System.Diagnostics.Process.GetCurrentProcess().Threads).OfType&lt;System.Diagnostics.ProcessThread&gt;() .Where(t =&gt; t.ThreadState == System.Diagnostics.ThreadState.Running).Count() &gt; 1) shutdown = true; else shutdown = false; } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USBrian Rasmussen
    1. USelectricalbah
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POExecute the last thread in threadloop
      1. USbas
      1. VTFavorite
    1. CO1. Can you estimate the time taken for the process update to complete? If yes, then you can have a timer for that time and allow the user click to create new thread only after the past thread is completed. 2. Set a flag when the Thread is completed. Check the flag value, to enable user to create another new thread. This way you allow user to create thread one by one, irrespective of how many clicks. Rather than all the threads at a time.
      singulars
      1. POExecute the last thread in threadloop
      1. USMullaly
    2. COThanks Brian for editing and responding to my question. The process takes 2 seconds on average to complete. I think I will try this one first. My head is all mixed up at the moment
      singulars
      1. POExecute the last thread in threadloop
      1. USelectricalbah
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload