Events for Control Updates
Events for Custom Animations & Theme Updates allow developers to hook into key moments during the button's visual and theme transition processes, etc.
Overview
This feature exposes several events that notify subscribers when specific animation effects and theme updates occur within the SiticoneButton control. The events include notifications for when an animation has completed, when an animation effect is initiated, and when the system or control theme has changed. These events allow developers to integrate custom behaviors, update other UI elements, or log changes based on the control's dynamic visual state.
The table below summarizes the events available for custom animations and theme updates:
AnimationCompleted
Fired when a specific animation (such as ripple, particle, or state transition) has completed.
After an animation effect ends
button.AnimationCompleted += (s, e) => { /* handle completion */ };
AnimationEffectStarted
Raised when an animation effect (e.g., ripple or particle effect) is initiated.
When an animation effect begins
button.AnimationEffectStarted += (s, e) => { /* log start time */ };
ThemeChanged
Notifies subscribers when the control detects a change in its theme mode, providing both the old and new theme values.
When the control’s theme changes
button.ThemeChanged += (s, e) => { /* update UI elements */ };
SystemThemeChanged
Fired when the operating system’s theme is updated, allowing the control and other elements to adjust accordingly.
When a system theme change is detected
button.SystemThemeChanged += (s, e) => { /* refresh settings */ };
Key Points
Real-Time Notifications
Events provide immediate feedback on both visual and system-level transitions, enabling responsive updates.
Customization Opportunities
Developers can extend or customize behavior by subscribing to these events to synchronize other UI components.
Fine-Grained Control
Separate events for animation completion, animation start, and theme updates allow precise control over visual feedback.
Enhanced Logging and Debugging
These events can be used to log detailed animation and theme change information for troubleshooting and performance tuning.
Best Practices
Subscribe to Animation Events for Coordinated UI Updates
Use AnimationCompleted and AnimationEffectStarted events to trigger changes in related UI elements when animations run.
csharp<br>button.AnimationCompleted += (s, e) => { UpdateStatus(e.FinalState); };<br>
Use Theme Events to Synchronize Application Look
Update additional components (e.g., menus, panels) when ThemeChanged or SystemThemeChanged events are raised.
csharp<br>button.ThemeChanged += (s, e) => { AdjustOtherControls(e.NewTheme); };<br>
Avoid Heavy Processing in Event Handlers
Keep event handler code lightweight to avoid blocking the UI thread during animations or theme transitions.
csharp<br>button.AnimationEffectStarted += (s, e) => { Task.Run(() => LogAnimationStart(e.Location)); };<br>
Log Events for Debugging and Analytics
Utilize these events to record performance metrics and user interactions with animations and theme changes.
csharp<br>button.SystemThemeChanged += (s, e) => { Debug.WriteLine("System theme updated to: " + e.SystemTheme); };<br>
Common Pitfalls
Overly Complex Event Handlers
Handlers performing heavy computations or blocking operations can delay animations and theme updates.
Offload heavy processing to background threads or use asynchronous methods in event handlers.
Ignoring Event Parameters
Not utilizing the detailed information provided by event argument classes can lead to missed opportunities for UI updates.
Carefully inspect event arguments (e.g., old vs. new theme values, animation type, duration) in your handlers.
Failing to Unsubscribe Event Handlers
Neglecting to unsubscribe event handlers when the control is disposed may cause memory leaks.
Always unsubscribe from events in the control’s Dispose method or when the subscriber is no longer needed.
Usage Scenarios
Coordinating UI Transitions
Update other UI elements (such as status indicators or progress bars) when an animation completes on the button.
csharp<br>button.AnimationCompleted += (s, e) => { statusLabel.Text = $"Transition to {e.FinalState} complete."; };<br>
Custom Animation Logging
Log the start and completion of animations for debugging purposes, tracking user interactions with visual effects.
csharp<br>button.AnimationEffectStarted += (s, e) => { Debug.WriteLine($"Animation {e.EffectType} started at {e.Location}"); };<br>
Dynamic Theme Adaptation
Adjust the color scheme of an entire form or multiple controls based on system or control theme updates.
csharp<br>button.SystemThemeChanged += (s, e) => { ApplyTheme(e.SystemTheme); };<br>
Enhanced Feedback Mechanism
Combine animation events with audio or additional visual cues to signal the end of an interactive transition.
csharp<br>button.AnimationCompleted += (s, e) => { System.Media.SystemSounds.Exclamation.Play(); };<br>
Code Examples
Example 1: Coordinated UI Update on Animation Completion
// Initialize a SiticoneButton with animation events for coordinated UI feedback
var animationButton = new SiticoneButton
{
Text = "Animate Me",
Size = new Size(150, 50)
};
// Subscribe to the AnimationCompleted event
animationButton.AnimationCompleted += (sender, e) =>
{
// For instance, update a label with the final state of the button
myStatusLabel.Text = $"Animation completed. State: {e.FinalState}";
};
// Add the button to the form
this.Controls.Add(animationButton);Example 2: Logging Animation Effect Starts
// Create a SiticoneButton and log when an animation effect starts
var logButton = new SiticoneButton
{
Text = "Log Animation",
Size = new Size(150, 50)
};
logButton.AnimationEffectStarted += (sender, e) =>
{
// Log details about the animation effect, such as type and expected duration
Debug.WriteLine($"Animation {e.EffectType} started at {e.Location} with duration {e.ExpectedDuration.TotalMilliseconds}ms");
};
this.Controls.Add(logButton);Example 3: Responding to Theme Changes
// Initialize a SiticoneButton and update its related UI when a theme change is detected
var themedButton = new SiticoneButton
{
Text = "Themed Button",
Size = new Size(160, 60)
};
// Subscribe to the ThemeChanged event
themedButton.ThemeChanged += (sender, e) =>
{
// Adjust additional UI elements based on the new theme
if(e.NewTheme == SiticoneButton.ThemeMode.Dark)
{
this.BackColor = Color.FromArgb(45, 45, 45);
}
else
{
this.BackColor = Color.White;
}
};
this.Controls.Add(themedButton);Review
Responsiveness
These events ensure that custom logic can be executed immediately after animations or theme updates, leading to a dynamic UI.
Flexibility
The variety of events enables fine-grained control over both visual effects and theme changes across the application.
Maintainability
By centralizing animation and theme update logic in event handlers, the code remains modular and easier to manage.
Summary
Events for Custom Animations & Theme Updates in the SiticoneButton control offer a powerful mechanism to extend the button's built-in animation and theming capabilities. By leveraging events such as AnimationCompleted, AnimationEffectStarted, ThemeChanged, and SystemThemeChanged, developers can implement synchronized UI updates, logging, and custom behavior that respond immediately to visual transitions and system-wide theme changes. This event-driven approach enhances the overall interactivity and consistency of your .NET WinForms applications.
Additional Resources
Integration Tips
Use these events to build a coordinated UI experience where multiple controls respond in unison to animations and theme changes.
Troubleshooting
Ensure that event handlers are optimized to avoid delays in the UI and are properly unsubscribed to prevent memory leaks.
Extending Functionality
Consider combining animation and theme events with other features (such as state management and visual styling) for a fully dynamic interface.
This comprehensive guide on Events for Custom Animations & Theme Updates should assist you in effectively integrating and customizing the animation and theme response mechanisms of the SiticoneButton control in your .NET WinForms applications.
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