How Can I Keep My Splash Screen Visible Until Background Tasks Finish in .NET?

Ensuring Splash Screen Visibility During Background Processes in .NET

Many .NET applications face the challenge of a prematurely closing splash screen before lengthy background tasks (like server data downloads) are finished. This article demonstrates a solution to keep the splash screen displayed until these tasks complete, improving the user experience.

This method leverages .NET's built-in splash screen functionality. By including a reference to Microsoft.VisualBasic.ApplicationServices, you can create a custom splash screen form (frmSplash) and control its visibility through events within the MyApp class.

frmSplash.vb:

Public Class frmSplash
    Inherits System.Windows.Forms.Form
End Class

Project.cs:

using System;
using System.Windows.Forms;
using Microsoft.VisualBasic.ApplicationServices;

namespace WindowsFormsApplication1 {
  static class Program {
    [STAThread]
    static void Main(string[] args) {
      Application.EnableVisualStyles();
      Application.SetCompatibleTextRenderingDefault(false);
      new MyApp().Run(args);
    }
  }

  class MyApp : WindowsFormsApplicationBase {
    protected override void OnCreateSplashScreen() {
      this.SplashScreen = new frmSplash();
    }

    protected override void OnCreateMainForm() {
      // Execute time-consuming background tasks here...

      // Maintain splash screen visibility until tasks are finished.
      while (_serverFiles == null) { // Replace with your task completion check
        Application.DoEvents();
      }

      // Close the splash screen and display the main form.
      this.SplashScreen.Close();
      this.MainForm = new Form1();
    }
  }
}

This solution keeps the splash screen visible until the background operations are complete, resulting in a smoother and more polished application launch. Remember to replace _serverFiles == null with your specific condition indicating task completion.

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