Question

我正在使用条形码进入窗口wpf应用程序，它没有显示弹出＆＃34; MessageBox.Show（＆＃34; Item Not Found＆＃34;）;＆＃34;当项目不存在于db

中时

我已经实现了日志，根据日志它进入了其他循环，但没有显示消息框。

请让我知道你对同样的想法

我正在使用以下代码：

    private void txtBarcode_TextChanged(object sender, TextChangedEventArgs e)
    {

        string urlLogPath = @"C:\11VideoWorking\Log\CashDrawerLog.txt";           
        try
        {
            if (txtBarcode.Text.Length == 13)
            {
                File.AppendAllText(urlLogPath, "Befor Get Product \n");
                objProductList = ObjGasLogic.GetSearchedProduct();
                File.AppendAllText(urlLogPath, "Befor Product Check  \n");
                if (objProductList != null)
                {
                    File.AppendAllText(urlLogPath, "Before Condition \n");
                    if (objProductList.Any(CheckProduct => CheckProduct.Barcode == txtBarcode.Text.Trim()))
                    {
                        File.AppendAllText(urlLogPath, "Item Found \n");
                        objProductDetails = objProductList.Where(Product => Product.Barcode == txtBarcode.Text.Trim()).SingleOrDefault();
                        objProductDetails.Quantity = 0;
                        BindCurrentlySelectedProduct();
                    }
                    else
                    {
                        File.AppendAllText(urlLogPath, "Item Not Found ,\n");
                        MessageBox.Show("Item Not Found");
                        File.AppendAllText(urlLogPath, "After Item Not Found \n");
                    }
                    //ClearCurrentSelectedProductDetails();                           
                }
                else
                {
                    File.AppendAllText(urlLogPath, "6 \n");
                    MessageBox.Show("Item Not Found");
                    ClearCurrentSelectedProductDetails();                       
                }
            }
            File.AppendAllText(urlLogPath, "End of Try \n");

        }
        catch (Exception ex)
        {
            ObjExceptionLogic.LogException(ex.Message, Convert.ToInt32(User.Instance.User_ID));
            File.AppendAllText(urlLogPath, "In catch\n" + ex.Message);
        }
    }

Answer 1

好的，我试图稍微清理你的代码以减少cyclomatic complexity

private void txtBarcode_TextChanged(object sender, TextChangedEventArgs e)
    {
        try
        {
            if (txtBarcode.Text.Length == 13)
            {
                var product = ObjGasLogic.GetProduct(txtBarcode.Text.Trim());

                if (product != null)
                {
                    objProductDetails = product;
                    objProductDetails.Quantity = 0;
                    BindCurrentlySelectedProduct();                                             
                }
                else
                {                        
                    MessageBox.Show("Item Not Found");
                    ClearCurrentSelectedProductDetails();
                }
            }
        }
        catch (Exception ex)
        {
            ObjExceptionLogic.LogException(ex.Message, Convert.ToInt32(User.Instance.User_ID));                
        }
    }

这将要求您在objGasLogic类中创建一个新方法

ObjGasLogic.GetProduct(txtBarcode.Text.Trim())

采取条形码但应该降低此方法的复杂性。

有了这个实现，你应该更好地了解问题所在，我认为在这里写一个日志文件有点不必要，一个断点就足够了。

条形码进入窗口wpf应用程序

1 个答案: