backgroundworker

I have the following problem: I have a Form named MainForm. I have a long operation to be taken place on this form. While this long operation is going on, I need to show another from named ProgressForm on top of the MainForm. ProgressForm contains a progress bar which needs to be updated while the long operation is taking place. After the long operation is completed, the ProgressForm should be closed automatically. I have written the following code: using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; using System.Threading; namespace ClassLibrary {

I've gone through this SO question but it didn't help. The case here is different. I'm using Backgroundworkers. 1st backgroundworker starts operating on the image input of user and inside firstbackgroundworker_runworkercompleted() I'm using calling 3 other backgroundworkers algo1backgroundworker.RunWorkerAsync(); algo2backgroundworker.RunWorkerAsync(); algo3backgroundworker.RunWorkerAsync(); this is the code for each: algo1backgroundworker_DoWork() { Image img = this.picturebox.Image; imgclone = img.clone(); //operate on imgclone and output it } algo2backgroundworker_DoWork() { Image img =

I can remember that many years ago (in 2005) I was using BackgroundWorker in my code without using a visual component for it, but I can't remember how (unfortunately I am very forgetful and forget everything very soon after I stop using it). Perhaps I was extending BackgroundWorker class. Can you link to a good example of using BackgroundWorker this way? CharithJ This article explains everything you need clearly. Here are the minimum steps in using BackgroundWorker: Instantiate BackgroundWorker and handle the DoWork event. Call RunWorkerAsync, optionally with an object argument. This then sets

Currently working with Oracle, but will also need a solution for MS SQL. I have a GUI that allows users to generate SQL that will be executed on the database. This can take a very long time, depending on the search they generate. I want the GUI/App to responsive during this search and I want the user to be able to cancel the search. I'm using a Background Worker Thread. My problem is that, when the user cancels the search, I can't interrupt the call to the database. It waits until it is finished and then, it can poll the 'CancelationPending' property. Not only does this waste resources on the

Would this be a proper way to dispose of a BackGroundWorker? I'm not sure if it is necesary to remove the events before calling .Dispose(). Also is calling .Dispose() inside the RunWorkerCompleted delegate ok to do? public void RunProcessAsync(DateTime dumpDate) { BackgroundWorker worker = new BackgroundWorker(); worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted); worker.DoWork += new DoWorkEventHandler(worker_DoWork); worker.RunWorkerAsync(dumpDate); } void worker_DoWork(object sender, DoWorkEventArgs e) { // Do Work here } void worker