System.ComponentModel.Component

The Component class provides the base implementation for the IComponent interface and enables object composition. It is the base class for all components that can be placed on a design surface.

System.Object
   └─ System.MarshalByRefObject
         └─ System.ComponentModel.Component

System.ComponentModel

System.dll

Gets or sets the ISite associated with the Component.

public virtual System.ComponentModel.ISite? Site { get; set; }

Indicates whether the component is currently being used in a design environment.

public bool DesignMode { get; }

Releases all resources used by the component.

public void Dispose()

This method calls Dispose(true) and then suppresses finalization.

using System;
using System.ComponentModel;

public class MyComponent : Component
{
    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            // free managed resources
        }
        // free unmanaged resources
        base.Dispose(disposing);
    }
}

Releases the unmanaged resources used by the component and optionally releases the managed resources.

protected virtual void Dispose(bool disposing)

Occurs when the component is disposed.

public event EventHandler? Disposed;

The Component class implements IComponent and provides a basic implementation for component lifecycle management. It is commonly used as a base class for controls, services, and other reusable objects.

Creating a custom component that overrides Dispose:

using System;
using System.ComponentModel;

public class CustomTimer : Component
{
    private System.Timers.Timer _timer;

    public CustomTimer()
    {
        _timer = new System.Timers.Timer(1000);
        _timer.Start();
    }

    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            _timer?.Stop();
            _timer?.Dispose();
        }
        base.Dispose(disposing);
    }
}