Events for Developer Integration

This feature exposes events that allow developers to respond to key changes in the control's state, such as value updates and encryption key rotations.

Overview

The Events for Developer Integration feature provides notifications for significant state changes within the control. Developers can subscribe to events like OnNumbersChanged, OnEncryptionKeyRotated, and PropertyChanged to integrate custom logic, update UI components, or trigger further processing when the number conversion or encryption status changes.

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Key Points

Key Point	Description
Real-time updates	The OnNumbersChanged event fires when the numeric value or its word representation changes, providing immediate feedback.
Encryption key notifications	The OnEncryptionKeyRotated event notifies subscribers when the encryption keys are rotated, including details such as timestamp and key hash.
Data binding support	The PropertyChanged event implements the standard .NET property change notification, facilitating data binding in UI frameworks.

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Best Practices

Best Practice	Description
Subscribe to events early	Subscribe to events such as OnNumbersChanged and OnEncryptionKeyRotated during initialization to capture all updates.
Use event data to update UI responsively	Use the event arguments to update labels, logs, or other UI components as soon as the underlying data changes.
Implement robust error handling in event handlers	Ensure that exceptions in event handlers do not affect the core functionality of the control.
Leverage PropertyChanged for data binding	Bind the PropertyChanged event to automatically update UI elements when property values change.

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Common Pitfalls

Pitfall	Description
Not unsubscribing from events	Failing to detach event handlers when no longer needed can lead to memory leaks in long-running applications.
Overloading event handlers with heavy logic	Performing resource-intensive tasks directly in event handlers can block the UI thread or cause performance issues.
Ignoring event data validation	Not validating or properly using the event arguments may result in inconsistent or unexpected behavior in the application.
Relying solely on events without proper fallback	Depending only on events without additional checks (e.g., periodic polling) might lead to missed updates in edge cases.

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Usage Scenarios

Scenario	Description
Live UI updates	Use the OnNumbersChanged event to update UI components such as labels or text boxes in real time as the numeric value changes.
Security monitoring	Subscribe to OnEncryptionKeyRotated to log key rotation events and enforce additional security protocols when keys change.
Data binding in complex forms	Leverage the PropertyChanged event to automatically propagate changes to bound UI elements in WinForms or other frameworks.

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Real Life Usage Scenarios

Scenario	Description
Dashboard applications	In financial or data monitoring dashboards, subscribe to OnNumbersChanged to refresh charts or graphs as values update.
Security audit systems	Use the OnEncryptionKeyRotated event to maintain a log of key rotations, assisting in security audits and compliance.
Dynamic form updates	Bind form controls to the control’s properties via the PropertyChanged event to ensure that the UI reflects the latest data.

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Troubleshooting Tips

Issue	Possible Cause	Recommended Action
UI not updating on value change	The application may not have subscribed to the OnNumbersChanged event, or the event handler may be improperly implemented.	Verify that event handlers are correctly attached and that the UI is updated inside the event callbacks.
Missing encryption key rotation notifications	The OnEncryptionKeyRotated event might not be subscribed, or key rotation might not be triggered as expected.	Ensure that key rotation is explicitly called and that event subscriptions are in place to capture the notifications.
Inconsistent data binding updates	The PropertyChanged event may not be correctly propagated to bound UI elements.	Confirm that data binding is properly configured and that the control implements INotifyPropertyChanged correctly.

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Code Examples

Example 1: Subscribing to OnNumbersChanged for Real-Time UI Updates

using System;
using System.Windows.Forms;
using SiticoneNetFrameworkUI;

public class MainForm : Form
{
    private Label lblWords;
    private SiticoneHumanizerLong humanizer;

    public MainForm()
    {
        lblWords = new Label { Location = new System.Drawing.Point(20, 20), Width = 400 };
        Controls.Add(lblWords);

        // Initialize the control and subscribe to the OnNumbersChanged event
        humanizer = new SiticoneHumanizerLong();
        humanizer.OnNumbersChanged += Humanizer_OnNumbersChanged;
        
        // Simulate a change in value
        humanizer.Value = 1234;
    }

    private void Humanizer_OnNumbersChanged(object sender, NumberChangedEventArgs e)
    {
        // Update UI label with the new word representation
        lblWords.Text = "Converted: " + e.Words;
    }
}

Example 2: Handling Encryption Key Rotation Notifications

using System;
using SiticoneNetFrameworkUI;

public class EncryptionMonitor
{
    public EncryptionMonitor()
    {
        var humanizer = new SiticoneHumanizerLong { UseAESEncryption = true };

        // Subscribe to the encryption key rotation event
        humanizer.OnEncryptionKeyRotated += (sender, e) =>
        {
            Console.WriteLine($"Encryption key rotated at {e.RotationTimestamp}. New key hash: {e.KeyHash}");
        };

        // Rotate keys to simulate the event
        humanizer.RotateEncryptionKeys();
    }
}

Example 3: Utilizing PropertyChanged for Data Binding

using System;
using System.ComponentModel;
using SiticoneNetFrameworkUI;

public class DataBindingExample : INotifyPropertyChanged
{
    private SiticoneHumanizerLong humanizer;

    public DataBindingExample()
    {
        humanizer = new SiticoneHumanizerLong();
        humanizer.PropertyChanged += Humanizer_PropertyChanged;

        // Initialize with a value
        humanizer.Value = 5678;
    }

    public string ConvertedWords => humanizer.Words;

    public event PropertyChangedEventHandler PropertyChanged;

    private void Humanizer_PropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        // Propagate the property change notification to the bound UI
        if (e.PropertyName == nameof(humanizer.Words))
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ConvertedWords)));
        }
    }
}

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Review

Aspect	Review Comments
Real-time feedback	The OnNumbersChanged event provides immediate notifications for value changes, enabling dynamic UI updates.
Security notifications	The OnEncryptionKeyRotated event ensures that changes in encryption keys are tracked, supporting enhanced security measures.
Standard data binding support	Implementing PropertyChanged allows for seamless integration with data-binding frameworks in WinForms.

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Summary

Summary Statement	Description
Events for Developer Integration provide a robust mechanism for tracking changes and integrating custom logic	This feature enables developers to subscribe to key control events, facilitating real-time UI updates, security monitoring, and effective data binding through a standardized event model.

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Additional Useful Sections

Integration Checklist

Checklist Item	Status/Notes
Subscribe to OnNumbersChanged	Ensure that event handlers are attached to capture real-time value and word conversion updates.
Handle OnEncryptionKeyRotated appropriately	Implement logging or security measures in response to key rotation events.
Utilize PropertyChanged for data binding	Bind UI elements to control properties via the PropertyChanged event to automatically reflect state changes.
Unsubscribe from events when not needed	Detach event handlers during disposal to avoid memory leaks, particularly in long-running applications.

FAQ

Question	Answer
How do I receive notifications when the number changes?	Subscribe to the OnNumbersChanged event, which provides both the updated numeric value and its word representation.
Can I track encryption key rotations?	Yes, subscribe to the OnEncryptionKeyRotated event to get notifications, including the rotation timestamp and key hash.
How does the PropertyChanged event help with UI updates?	It implements the standard INotifyPropertyChanged interface, making it easy to bind control properties to UI elements in WinForms.
What should I do to avoid memory leaks with events?	Unsubscribe from events when the control is disposed or when the event handling is no longer needed to prevent memory leaks.

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This comprehensive documentation for the Events for Developer Integration feature provides developers with detailed guidance on how to harness the control’s event-driven architecture to create dynamic, responsive, and secure .NET WinForms applications.