DINO_SCRUM/Magazyn_Client/Magazyn/App.xaml.cs

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;

namespace Magazyn
{
	/// <summary>
	/// Interaction logic for App.xaml
	/// </summary>
	public partial class App : Application
	{
		protected override void OnStartup(StartupEventArgs e)
		{
			ChangeTheme(2);
			base.OnStartup(e);
		}

		public void ChangeTheme(int index)
		{
			Resources.MergedDictionaries.Clear();
			Uri[] uris = new Uri[4];

			uris[1] = new Uri("pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml");

			switch (index % 3) {
				case 0:
					uris[0] = new Uri("pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml");
					uris[2] = new Uri("pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.Blue.xaml");
					uris[3] = new Uri("pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Cyan.xaml");
					break;

				case 1:
					uris[0] = new Uri("pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml");
					uris[2] = new Uri("pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.Lime.xaml");
					uris[3] = new Uri("pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Green.xaml");
					break;

				case 2:
					uris[0] = new Uri("pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Dark.xaml");
					uris[2] = new Uri("pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.DeepOrange.xaml");
					uris[3] = new Uri("pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Orange.xaml");
					break;
			}

			Resources.MergedDictionaries.Add(new ResourceDictionary() { Source = uris[0] });
			Resources.MergedDictionaries.Add(new ResourceDictionary() { Source = uris[1] });
			Resources.MergedDictionaries.Add(new ResourceDictionary() { Source = uris[2] });
			Resources.MergedDictionaries.Add(new ResourceDictionary() { Source = uris[3] });

		}

	}
}