Custom DependencyProperty with RaisePropertyChanged-Event

CustomUserControlView.cs

using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;

public partial class CustomUserControlView : UserControl, INotifyPropertyChanged
{
    public CustomUserControlView()
    {
        InitializeComponent();
    }

    public event PropertyChangedEventHandler PropertyChanged;

    private void RaisePropertyChanged(string propertyName)
    {
        if (this.PropertyChanged != null)
            this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
    }

    public static readonly DependencyProperty SetTextProperty =
     DependencyProperty.Register("SetText", typeof(string), typeof(UserControl1), new
        PropertyMetadata(default(string), new PropertyChangedCallback(OnSetTextChanged)));

    public string SetText
    {
        get { return (string)GetValue(SetTextProperty); }
        set { SetValue(SetTextProperty, value); }
    }

    private static void OnSetTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
    {
        if (d is CustomUserControlView c)
        {
            c.RaisePropertyChanged(nameof(c.Text));
            c.RaisePropertyChanged(nameof(c.ReadOnly));
        }
    }
}