private void Button_Click(object sender, RoutedEventArgs e)
{
NewContactWindow newContactWindow = new NewContactWindow();
newContactWindow.ShowDialog();
ReadDataBase();
}
private void buttonNewContact_Click(object sender, RoutedEventArgs e)
{
NewContactWindow newContactWindow = new NewContactWindow()
{
Owner = this
};
newContactWindow.ShowDialog();
ReadDatabase();
}