C# Windows Form Application: Reminder System

Overview

Welcome to the Reminder System Windows Forms application! This tool helps you manage and track reminders in a simple and effective way. You can add, view, and delete reminders, with the ability to categorize them based on the due date.

Features

Add a New Reminder

• Reminder Title: Enter the title for your reminder.
• Reminder Description: Add a detailed description for the task.
• Due Date and Time: Set the date and time when the reminder is due.

Reminders are saved in a text file and displayed in a list. Each reminder is associated with a title, description, and due time.

View Existing Reminders

• The application loads existing reminders from a text file and displays them in a list.
• Each item in the list shows the title, description, and due date of the reminder.

Delete a Reminder

• You can delete reminders from the list by selecting them and clicking the "Delete" button.
• Reminders are removed both from the display and from the stored data in the text file.

Reminder Status

• The status of each reminder is displayed based on whether the reminder's due date has passed or not:
  • Not Done Yet: If the reminder's due date has not passed.
  • Oops, You Forgot: If the reminder's due date has passed.

UI Components

• Textboxes: For entering the reminder title and description.
• DateTimePicker: To set the reminder's due date and time.
• ListBox: Displays the list of all reminders.
• ErrorProvider: Shows error messages if title or description fields are empty.
• ToolTips: Provide real-time information about the status of each reminder.

Data Storage

• All reminders are stored in a text file (ReminderData.txt).
• Each reminder is saved with the title, description, and due date in a |-separated format.

How to Use

1. Adding a New Reminder:
   • Enter a title and description for your reminder.
   • Set a due date and time.
   • Click the "Add" button to save the reminder.

2. Viewing Reminders:
   • The existing reminders will be displayed in the list. Each item shows the title, description, and due date.

3. Deleting a Reminder:
   • Select the reminder you want to delete from the list.
   • Click the "Delete" button to remove it from the list and the text file.

4. Reminder Status:
   • For each reminder, the application will display whether it is still pending or overdue.

Feel free to explore and manage your reminders efficiently with this easy-to-use Windows Forms application!