prs/prs.desktop/Panels/Customers/CustomerInvoiceLine.cs

using System.Windows;
using System.Windows.Controls;
using Comal.Classes;
using InABox.Core;
using InABox.DynamicGrid;

namespace PRSDesktop
{
    internal class CustomerInvoiceLine : DynamicOneToManyGrid<Invoice, InvoiceLine>
    {
        public CustomerInvoiceLine()
        {
            AddButton("Calculate", null, CalculateInvoice);
        }

        private bool CalculateInvoice(Button arg1, CoreRow[] arg2)
        {
            var res = MessageBox.Show("Summarise Time and Materials?", "Confirm Action", MessageBoxButton.YesNoCancel, MessageBoxImage.Question,
                MessageBoxResult.Yes, MessageBoxOptions.None);
            if (res == MessageBoxResult.Cancel)
                return false;
            //EditorGrid
            var invoice = Item;
            if (invoice != null)
            {
                Utility.CalculateInvoice(invoice, res == MessageBoxResult.Yes);
                return true;
            }

            MessageBox.Show("Please Select or Create an Invoice First!");
            return false;
        }
    }
}