Free VB.NET Source Code: Mastering File Management & System Initialization!

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โปรเจกต์นี้พัฒนาด้วย Visual Studio 2022
🖥️✨ อาจารย์แนะนำให้ติดตั้งพร้อมกับ .NET 8
🚀 หรือเวอร์ชันใหม่ล่าสุด
🔄 ตามวิดีโอสอนฟรีด้านล่างนี้เลยครับ 🎬👇

This project was developed using Visual Studio 2022.
I recommend installing it along with .NET 8
or the latest version.
Check out the free tutorial video below! 🎥👇


Here’s an example of Visual Basic .NET source code in the Main module of the project:

' Main module for the Enterprise Grade Inventory Management System
Module Program
    ' Entry point of the application
    Sub Main(args As String())
        Try
            ' Display application title and header
            Console.WriteLine("Enterprise Grade Inventory Management System")
            Console.WriteLine("----------------------------------------")
            Console.WriteLine()

            ' Synchronously execute the asynchronous application initialization
            InitializeApplicationAsync().Wait()

            ' Handle user-initiated cancellation of the initialization process
        Catch ex As OperationCanceledException
            Console.WriteLine(Environment.NewLine & "Program terminated by user.")
            Environment.Exit(1)

            ' Environment.Exit(1) is a method in .NET that immediately terminates
            ' the current running application with a specific exit code.
        Catch ex As Exception
            Console.WriteLine(Environment.NewLine & "Critical Error")
            Console.WriteLine("--------------")
            Console.WriteLine("An unexpected error has occurred:")
            Console.WriteLine(ex.Message)
            Console.WriteLine(Environment.NewLine & "The application needs to close.")
            Console.WriteLine("Please contact system administrator if this persists.")
            Environment.Exit(1)
        End Try

        ' Prompt user to press any key before application closes
        Console.WriteLine(Environment.NewLine & "Press any key to exit...")
        Console.ReadKey()
    End Sub

    ' Asynchronous method to initialize the entire application
    Private Async Function InitializeApplicationAsync() As Task
        ' Attempt system initialization with retry mechanism
        Await InitializeWithRetryAsync()

        ' Start the main program loop (menu system)
        Await MainProgramLoopAsync()
    End Function

    ' Implements a retry mechanism for system initialization
    Private Async Function InitializeWithRetryAsync() As Task
        ' Maximum number of initialization attempts
        Const MaxRetries As Integer = 3
        Dim retryCount As Integer = 0

        Do
            Try
                ' Attempt to initialize the system
                Await SystemInitialization.InitializeSystemAsync()

                ' Verify the system's integrity
                If Await SystemInitialization.VerifySystemIntegrityAsync() Then
                    ' System initialization successful
                    Console.WriteLine("System verification passed. Ready to start.")
                    Console.WriteLine(Environment.NewLine & "Press any key to continue...")
                    Console.ReadKey(True)  ' Pause for user acknowledgment
                    Exit Do  ' Exit retry loop if successful
                Else
                    ' Throw exception if system verification fails
                    Throw New Exception("System verification failed.")
                End If

            Catch ex As Exception
                ' Increment retry counter
                retryCount += 1

                ' Check if maximum retry attempts have been reached
                If retryCount >= MaxRetries Then
                    Console.WriteLine(Environment.NewLine & "Initialization Failed")
                    Console.WriteLine("---------------------")
                    Console.WriteLine($"Failed to initialize after {MaxRetries} attempts.")
                    Console.WriteLine("Error: " & ex.Message)
                    Throw  ' Throw final error if all attempts fail
                End If

                ' Inform user about retry attempt
                Console.WriteLine(Environment.NewLine & $"Initialization attempt {retryCount} of {MaxRetries} failed.")
                Console.WriteLine("Press any key to retry or Esc to cancel...")

                ' Get user input for retry or cancel
                Dim key = Console.ReadKey(True)
                If key.Key = ConsoleKey.Escape Then
                    ' Allow user to cancel initialization
                    Throw New OperationCanceledException("Initialization cancelled by user.")
                End If
            End Try
        Loop
    End Function

    ' Main program loop to display and handle the menu system
    Private Async Function MainProgramLoopAsync() As Task
        ' Main program logic here
        ' This is where you'll add your menu system
        Console.WriteLine(Environment.NewLine & "System ready for operation.")
        Await Task.CompletedTask

        ' Call the main menu display method from MenuSystem module
        ' Await MenuSystem.DisplayMainMenuAsync()
    End Function

End Module

🌟 📜 ฟรี! โปรเจกต์ VB.NET: การเขียนโปรแกรมอะซิงโครนัส & การจัดการไฟล์ & โฟลเดอร์

Free VB.NET Source Code: Mastering File Management & System Initialization!

Are you a beginner looking to understand file handling, folder management, and asynchronous programming in VB.NET? This free source code is a great learning resource to strengthen your fundamentals! Let's explore what you’ll gain from studying this structured and well-commented code.

🎯 What Will You Learn?
✅ Folder & File Management

  • How to create folders dynamically using Directory.CreateDirectory().
  • How to generate CSV files with predefined headers.
  • Understanding the importance of file structure organization.

✅ Error Handling & Logging

  • Learn to use Try...Catch blocks to handle exceptions gracefully.
  • Manage common errors like UnauthorizedAccessException and IOException.

✅ Asynchronous Programming

  • Use Async & Await to create non-blocking file operations.
  • Improve performance by preventing UI freezes and lagging in large applications.

✅ Structured Data Storage

  • Learn how CSV files are used for storing tabular data.
  • Understand the importance of headers to maintain data consistency.

✅ Basic System Verification Techniques

  • Learn how to validate file existence before accessing them.
  • Implement a retry mechanism for system initialization.

✅ Backup & Data Safety

  • Automatically backup files before modification to prevent data loss.
  • Use timestamped directories to maintain version control.


This is a great resource for beginners to practice real-world programming concepts before diving into enterprise applications. 💡


📌 Note 1: This free source code is for members only.
📌 Note 2: This free Visual Studio 2022 project is for members only.


ขอบคุณสำหรับการสนันสนุน สมาชิกสามารถดาวน์โหลดโปรเจกต์ได้ที่ลิงค์นี้

Thank you for your support! You can download the project at this link

For members only!

Download project


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