Bridging windows and web applications using JSON

JavaScriptToCSharp.cs

function SelectItem(orderID)
{
    window.external.SelectItem(orderID);
}

public void SelectItem(string orderID)
{
    int id = Convert.ToInt32(orderID);
    foreach (ListViewItem li in listOrders.Items)
    {
        if (((Order)li.Tag).OrderID == id)
        {                    
            li.Font = new Font(li.Font, FontStyle.Bold);
            li.BackColor = Color.Maroon;
            li.ForeColor = Color.White;
            li.Checked = true;
        }
    }
}