How to Keep a Splash Screen Visible Until a Background Thread Finishes?

Ensuring Splash Screen Visibility Until Background Thread Completion

This article addresses the challenge of keeping a splash screen displayed until a background thread finishes its processing. The solution employs the BackgroundWorker class for efficient thread management.

Within the SplashScreen class's GetFromServer() method:

1. Instantiate BackgroundWorker:

   <code class="language-csharp">private BackgroundWorker worker = new BackgroundWorker();</code>

2. Assign DoWork Event Handler:

   <code class="language-csharp">worker.DoWork += new DoWorkEventHandler(worker_DoWork);</code>

3. Offload Time-Consuming Tasks: Relocate lengthy operations from GetFromServer() to the worker_DoWork event handler:

   <code class="language-csharp">private void worker_DoWork(object sender, DoWorkEventArgs e)
   {
       // Perform time-consuming operations here
       // ...
   
       _serverFiles = "added"; // Example: Set a flag indicating completion
   }</code>

4. Initiate Background Worker on Hide: Start the background worker when the splash screen is about to hide:

   <code class="language-csharp">private void SplashScreen_Hide(object sender, EventArgs e)
   {
       worker.RunWorkerAsync();
   }</code>

5. Hide Splash Screen on Completion: Hide the splash screen once the background worker finishes its work:

   <code class="language-csharp">private void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
   {
       this.Hide();
   }</code>

This method guarantees the splash screen's visibility until the background thread's task is complete, providing a smooth user experience. The inherent capabilities of the BackgroundWorker class simplify thread management and ensure a clean transition to the main application form.

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