public Form1()
{
InitializeComponent();
CheckForIllegalCrossThreadCalls = false;
coins = new List <CoinData>();
//standaard state
state = new SortState();
}
private void button2_Click(object sender, EventArgs e)
{
state = new FilterState();
state.Handle(this);
}
private void button1_Click(object sender, EventArgs e)
{
state = new SortState();
state.Handle(this);
}