narsil/Tanshu.Accounts.PointOfSale/Products/ProductListForm.cs

using System;
using System.Windows.Forms;
using Tanshu.Accounts.Entities;
using Tanshu.Accounts.Repository;
using System.Collections.Generic;

namespace Tanshu.Accounts.PointOfSale
{
    public partial class ProductListForm : Form
    {
        private IList<Product> _list;
        public ProductListForm()
        {
            InitializeComponent();
            dgvProducts.CellClick += new DataGridViewCellEventHandler(dgvProducts_CellClick);
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            using (var frm = new ProductForm(null))
                frm.ShowDialog();
            using (var bi = new ProductBI())
                _list = bi.List();
            bsList.DataSource = _list;
        }

        private void ProductListForm_Load(object sender, EventArgs e)
        {
            ShowGrid();
        }
        private void ShowGrid()
        {
            using (var bi = new ProductBI())
                switch (chkIsActive.CheckState)
                {
                    case CheckState.Checked:
                        _list = bi.List(x => x.IsActive == true);
                        break;
                    case CheckState.Unchecked:
                        _list = bi.List(x => x.IsActive == false);
                        break;
                    default:
                        _list = bi.List();
                        break;
                }
            bsList.DataSource = _list;
        }

        private void btnEdit_Click(object sender, EventArgs e)
        {
            var id = ((Product)bsList.Current).ProductID;
            using (var frm = new ProductForm(id))
                frm.ShowDialog();
            using (var bi = new ProductBI())
                _list = bi.List();
            bsList.DataSource = _list;
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void dgvProductTypes_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            var data = dgvProducts.Rows[e.RowIndex].DataBoundItem as Product;
            if (data == null)
                return;
            var tax = e.Value as Tax;
            if (tax != null)
            {
                e.Value = string.Format("{1:P} - {0}", tax.Name, tax.Rate); ;
                return;
            }
            var productGroup = e.Value as ProductGroup;
            if (productGroup != null)
            {
                e.Value = productGroup.Name;
            }
        }
        private void dgvProducts_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            // Ignore clicks that are not on button cells.  
            if (e.RowIndex < 0)
                return;

            // Ignore clicks that are not on button cells.  
            if (e.ColumnIndex == dgvProducts.Columns["moveUp"].Index)
            {
                var product = dgvProducts.Rows[e.RowIndex].DataBoundItem as Product;
                var index = _list.IndexOf(product);
                if (index == 0)
                    return;
                var previousProduct = _list[index - 1];
                if (previousProduct.ProductGroup.ProductGroupID != product.ProductGroup.ProductGroupID)
                    return;
                _list.RemoveAt(index);
                _list.Insert(index - 1, product);
                bsList.DataSource = _list;
                bsList.ResetBindings(false);
                bsList.CurrencyManager.Position -= 1;
            }
            if (e.ColumnIndex == dgvProducts.Columns["moveDown"].Index)
            {
                var product = dgvProducts.Rows[e.RowIndex].DataBoundItem as Product;
                var index = _list.IndexOf(product);
                if (index == _list.Count + 1)
                    return;
                var nextProduct = _list[index + 1];
                if (product.ProductGroup.ProductGroupID != nextProduct.ProductGroup.ProductGroupID)
                    return;
                _list.RemoveAt(index);
                _list.Insert(index + 1, product);
                bsList.DataSource = _list;
                bsList.ResetBindings(false);
                bsList.CurrencyManager.Position += 1;
            }
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            using (var bi = new ProductBI())
            {
                bi.UpdateSortOrder(_list);
                bi.SaveChanges();
                switch (chkIsActive.CheckState)
                {
                    case CheckState.Checked:
                        _list = bi.List(x => x.IsActive == true);
                        break;
                    case CheckState.Unchecked:
                        _list = bi.List(x => x.IsActive == false);
                        break;
                    default:
                        _list = bi.List();
                        break;
                }
                bsList.DataSource = _list;
            }
        }

        private void chkIsActive_CheckStateChanged(object sender, EventArgs e)
        {
            ShowGrid();
        }
    }
}