private bool IsExisted()
{
SalesListDetail salesListDetail = null;
// linq查询判断商品明细中是否已经存在跟商品条码相同的商品
var pList = from p in salesListDetailList
where string.Equals(p.ProductId, this.textBoxProductId.Text.Trim())
select p;
// 在明细列表中找到了与添加的商品
if (pList.Count() > 0)
{
salesListDetail = pList.First();
// 数量累加
salesListDetail.Quantity += Convert.ToInt32(this.textBoxCount.Text.Trim());
// 计算合计
salesListDetail.SubTotalMoney = CalculateSubTotal(salesListDetail.UnitPrice,
salesListDetail.Discount,
salesListDetail.Quantity);
this.bs.ResetBindings(true);
return(true);
}
else
{
return(false);
}
}
protected void Button_DelItem_Click(object sender, EventArgs e) //删除一个选项
{
int[] arr = ListBox1.GetSelectedIndices();
int len = arr.Length;
for (int i = 0; i < len; ++i)
{
string strdel = ListBox1.Items[arr[i]].Text;
ListBox1.Items.Remove(strdel);
Response.Write(arr[i].ToString() + " " + strdel);
SalesListDetail sld = new SalesListDetail();
sld = saleslist[arr[i]];
decimal curTot = Convert.ToDecimal(TextBox_Cur_TotMoney.Text) - sld.SubTotalMoney;
TextBox_Cur_TotMoney.Text = curTot.ToString();
saleslist.Remove(sld);
string pid = sld.ProductId;
if (htProidToCnt.Contains(pid))
{
int preCnt = (int)htProidToCnt[pid];
htProidToCnt.Remove(pid);
if (preCnt > sld.Quantity)
{
htProidToCnt.Add(pid, preCnt - sld.Quantity);
}
}
}
}
//添加新商品到销售明细，返回false则表明失败
private bool AddProductList()
{
Product product = objProductService.GetProductInfo(this.txtProductId.Text.Trim());
if (product == null)//未查到商品的情况下，允许手工添加
{
DialogResult result = MessageBox.Show("未查询到商品信息，手工录入商品，请检查单价和折扣是否录入正确，确定吗？", "询问信息", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result != DialogResult.Yes)
{
return(false);
}
//先判断单价和折扣是否输入正确
if (!DataValidate.IsDecimalNum(this.txtUnitPrice.Text.Trim()) || Convert.ToDecimal(this.txtUnitPrice.Text.Trim()) == 0)
{
MessageBox.Show("手工录入商品，单价输入不正确", "提示信息");
this.txtUnitPrice.SelectAll();
this.txtUnitPrice.Focus();
return(false);
}
if (!DataValidate.IsDecimalNum(this.txtDiscount.Text.Trim()))
{
MessageBox.Show("手工录入商品，折扣输入不正确", "提示信息");
this.txtDiscount.SelectAll();
this.txtDiscount.Focus();
return(false);
}
product = new Product()
{
ProductId = this.txtProductId.Text.Trim(),
ProductFullName = "手工录入商品",
UnitPrice = Convert.ToDecimal(this.txtUnitPrice.Text.Trim()),
Discount = Convert.ToDouble(this.txtDiscount.Text.Trim())
};
}
SalesListDetail objSaleDetail = new SalesListDetail()
{
ProductId = product.ProductId,
ProductFullName = product.ProductFullName,
UnitPrice = product.UnitPrice,
Discount = product.Discount,
Quantity = Convert.ToInt32(this.txtQuantity.Text.Trim())
};
objSaleDetail.SubTotalMoney = objSaleDetail.Quantity * objSaleDetail.UnitPrice;
if (objSaleDetail.Discount != 0)
{
objSaleDetail.SubTotalMoney *= Convert.ToDecimal(objSaleDetail.Discount / 10);
objSaleDetail.SubTotalMoney = Decimal.Round(objSaleDetail.SubTotalMoney, 2);
}
objSaleDetail.Num = this.mainSaleList.SalesListDetail.Count + 1;
this.mainSaleList.SalesListDetail.Add(objSaleDetail);
return(true);
}
private void AddtoDetailList(Products objProduct, int count)
{
// 封装
SalesListDetail salesListDetail = new SalesListDetail()
{
// 封装流水号
SerialNumber = this.textBoxSerialNumber.Text,
ProductId = objProduct.ProductId,
ProductName = objProduct.ProductName,
UnitPrice = objProduct.UnitPrice,
Discount = objProduct.Discount,
Quantity = count
};
// 计算合计
salesListDetail.SubTotalMoney = CalculateSubTotal(salesListDetail.UnitPrice,
salesListDetail.Discount,
salesListDetail.Quantity);
this.salesListDetailList.Add(salesListDetail);
this.bs.ResetBindings(true);
}
private void TxtProductId_KeyDown(object sender, KeyEventArgs e)
{
if (this.txtProductId.Text.Trim().Length != 0 && e.KeyValue == 13) //回车键
{
if (!DataValidate.IsInteger(this.txtQuantity.Text.Trim())) //查找商品前先检查数量输入是否正确
{
MessageBox.Show("数量输入不正确", "校验提示");
this.txtQuantity.SelectAll();
this.txtQuantity.Focus();
return;
}
try
{
if (this.dgvProdutList.RowCount == 0 || this.lblSerialNum.Text.Length == 0)//第一次扫描生成序列号
{
this.lblTotalMoney.Text = "0.00";
this.lblReceivedMoney.Text = "0.00";
this.lblReturnMoney.Text = "0.00";
this.lblSerialNum.Text = CreateSerialNum();
}
var pList = from p in this.mainSaleList.SalesListDetail where p.ProductId.Equals(this.txtProductId.Text.Trim()) select p;
if (pList.Count() > 0)//已经在列表中
{
SalesListDetail objSalesDetail = pList.FirstOrDefault <SalesListDetail>();
objSalesDetail.Quantity += Convert.ToInt32(this.txtQuantity.Text.Trim());
objSalesDetail.SubTotalMoney = objSalesDetail.Quantity * objSalesDetail.UnitPrice;
if (objSalesDetail.Discount != 0)
{
objSalesDetail.SubTotalMoney *= Convert.ToDecimal(objSalesDetail.Discount / 10);
objSalesDetail.SubTotalMoney = Decimal.Round(objSalesDetail.SubTotalMoney, 2);
}
}
else
{
bool addResult = AddProductList();
if (!addResult)
{
return;
}
}
//显示数据（测试不使用BindingSource）
this.dgvProdutList.DataSource = null;
this.bs.DataSource = this.mainSaleList.SalesListDetail;
//if (this.mainSaleList.SalesListDetail != null && this.mainSaleList.SalesListDetail.Count > 0)//第一次绑定时候判断是否有值，否则会引发点击dgv异常
//this.dgvProdutList.DataSource = this.mainSaleList.SalesListDetail;
this.dgvProdutList.DataSource = this.bs;
this.bs.MoveLast();
//更新商品总金额
this.lblTotalMoney.Text = (from d in this.mainSaleList.SalesListDetail select d.SubTotalMoney).Sum().ToString();
//还原输入列表
this.txtProductId.Clear();
this.txtQuantity.Text = "1";
this.txtUnitPrice.Text = "0.00";
this.txtDiscount.Text = "0";
}
catch (Exception ex)
{
MessageBox.Show("扫码出现异常，请重试" + ex.Message, "错误提示");
return;
}
}
}