protected bool HandleChangeQuantity(int index, int quantity)
{
try
{
if (index >= m_listItem.Count)
{
return(false);
}
ProductGridEntity item = m_listItem[index];
if (quantity < 0)
{
MessageBox.Show("Số lượng không được nhỏ hơn 0", "Cảnh báo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
else
{
item.Quantity = quantity;
item.Total = quantity * (item.Price - item.Discount);
//updateGridData(); //avoid error "...result is a reentrant...."
//update total
m_gridView.Rows[index].Cells["m_colTotal"].Value = item.Total;
return(true);
}
}
catch (Exception exc)
{
AppLogger.logError(this.GetType().Name, exc);
return(false);
}
}
public void HandleAddProductItem(ProductGridEntity item)
{
try
{
if (item != null)
{
bool isExist = false;
foreach (ProductGridEntity product in m_listItem)
{
if (product.Id == item.Id)
{
product.Quantity++;
product.Total = product.Quantity * product.Price;
isExist = true;
}
}
if (!isExist)
{
m_listItem.Add(item);
}
updateGridData();
}
}
catch (Exception exc)
{
AppLogger.logError(this.GetType().Name, exc);
}
}
private void m_gridView_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
try
{
DataGridViewCell cell = m_gridView.Rows[e.RowIndex].Cells[e.ColumnIndex];
if (cell == null)
{
return;
}
bool result = false;
//change quantity
if (e.ColumnIndex == 4)
{
result = HandleChangeQuantity(e.RowIndex, int.Parse(StringUtil.ToEmpty(cell.Value)));
}
//apply discount
else if (e.ColumnIndex == 5)
{
result = HandleDiscount(e.RowIndex, int.Parse(StringUtil.ToEmpty(cell.Value)));
}
else
{
ProductGridEntity item = null;
//search product by barcode
if (e.ColumnIndex == 1)
{
item = SearchProductByBarcode(StringUtil.ToEmpty(cell.Value));
}
//search product by Name
else if (e.ColumnIndex == 2)
{
item = SearchProductByName(StringUtil.ToEmpty(cell.Value));
}
if (item != null)
{
HandleAddProductItem(item);
result = true;
}
else
{
result = false;
}
}
if (result == false && m_gridView.Rows.Count > 1 && e.RowIndex < m_gridView.Rows.Count - 1)
{
m_gridView.Rows.RemoveAt(e.RowIndex);
}
}
catch (Exception exc)
{
AppLogger.logError(this.GetType().Name, exc);
}
}
private void m_gridView_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
ProductGridEntity item = SearchProductByBarcode(m_cacheBarcodeKey);
if (item != null)
{
HandleAddProductItem(item);
}
m_cacheBarcodeKey = "";
}
}
protected ProductGridEntity SearchProductByBarcode(string barcode)
{
try
{
AppLogger.logInfo(this.GetType().Name, " ENTER SearchProductByBarcode");
BindingProductEntity searchResult;
SearchProductView searchComp = new SearchProductView(barcode, "", true);
if (searchComp.getUniqueItem() != null)
{
searchResult = searchComp.getUniqueItem();
}
else
{
searchComp.ShowDialog();
searchResult = searchComp.SelectedProduct;
}
if (searchResult != null)
{
ProductGridEntity product = new ProductGridEntity();
product.Id = searchResult.Id;
product.Barcode = searchResult.Barcode;
product.Name = searchResult.Name;
product.Price = searchResult.Price;
product.Quantity = 1;
product.Discount = 0;
product.Total = product.Quantity * product.Price;
return(product);
}
return(null);
}
catch (Exception exc)
{
AppLogger.logError(this.GetType().Name, exc);
return(null);
}
}
protected ProductGridEntity SearchProductByName(string name)
{
try
{
AppLogger.logInfo(this.GetType().Name, " ENTER SearchProductByName");
ProductFinderView searchComp = isBarcode ? new ProductFinderView(barcode: _model.Barcode, isSearchBarcode: true) : new ProductFinderView(name: _model.Name, isSearchBarcode: false);
Product searchResult = null;
if (searchComp.getUniqueItem() != null)
{
searchResult = searchComp.getUniqueItem();
}
else
{
searchComp.ShowDialog();
searchResult = searchComp.SelectedProduct;
}
if (searchResult != null)
{
ProductGridEntity product = new ProductGridEntity();
product.Id = searchResult.Id;
product.Barcode = searchResult.Barcode;
product.Name = searchResult.Name;
product.Price = searchResult.Price;
product.Quantity = 1;
product.Discount = 0;
product.Total = product.Quantity * product.Price;
return(product);
}
return(null);
}
catch (Exception exc)
{
AppLogger.logError(this.GetType().Name, exc);
return(null);
}
}
private bool HandleDiscount(int index, double discount)
{
try
{
ProductGridEntity item = m_listItem[index];
if (index >= m_listItem.Count)
{
return(false);
}
if (discount < 0)
{
MessageBox.Show("Giá giảm không được nhỏ hơn 0", "Cảnh báo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
else if (discount > item.Price)
{
MessageBox.Show("Giá giảm không được nhiều hơn giá bán", "Cảnh báo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
else
{
item.Discount = discount;
item.Total = item.Quantity * (item.Price - discount);
//updateGridData();
// update total
m_gridView.Rows[index].Cells["m_colTotal"].Value = item.Total;
return(true);
}
}
catch (Exception exc)
{
AppLogger.logError(this.GetType().Name, exc);
return(false);
}
}