Question

在这里，我添加产品并保存图像路径，一切正常，图像路径已保存

public ActionResult AddProduct(Product p, HttpPostedFileBase prodImg, decimal[] price)
                    {
                        try
                        {
                            string absoluthFolderPath = Server.MapPath("\\Images");
                            string pathOfImage = System.IO.Path.GetExtension(prodImg.FileName);
                            string newFileName = Guid.NewGuid() + pathOfImage;
                            absoluthFolderPath += "\\" + newFileName;
                            prodImg.SaveAs(absoluthFolderPath);

                            string relitivePath = @"\Images\" + newFileName;
                            p.ImagePath = relitivePath;
                            p.Blocked = false;
                            new ProductsBL().AddProduct(p);
                            ViewData\["msg"\] = "Successfuly";
                        }
                        catch(Exception ex)
                        {

                        }
                        ModelState.Clear();
                        return View();
                    }

尝试更新图片路径时，它会在屏幕截图中显示错误

 public ActionResult Update(Product modifieDetails, HttpPostedFileBase updImg)
            {
                string absoluthFolderPath = Server.MapPath("\\Images");
                string pathOfImage = System.IO.Path.GetExtension(updImg.FileName);
                string newFileName = Guid.NewGuid() + pathOfImage;
                absoluthFolderPath += "\\" + newFileName;
                updImg.SaveAs(absoluthFolderPath);

                string relitivePath = @"\Images\" + newFileName;
                modifieDetails.ImagePath = relitivePath;
                modifieDetails.Blocked = false;
                new ProductsBL().UpdateProduct(modifieDetails);
                return RedirectToAction("ListProduct");
            }

[1]: http://i.stack.imgur.com/wgE88.png

Answer 1

您需要将其拆分：

select date, 
(select COUNT(1) FROM dbo.TASKS WHERE
OPENDATE<=date AND
(CLSDDATE>=date Or CLSDDATE is null))as 'Pending jobs',
(select COUNT(1) FROM dbo.TASKS WHERE
month(CLSDDATE)=MONTH(date) AND YEAR(clsddate)=YEAR(date)) as 'Completed jobs',
(select AVG(datediff(DAY,OPENDATE, CLSDDATE)) as avgDays FROM dbo.TASKS WHERE
month(CLSDDATE)=MONTH(date) AND YEAR(clsddate)=YEAR(date)) as 'AvgDays'
from dbo.CalendarMonths

where date<=GETDATE()

为了将实体的更新保存回商店，您必须设置＆＃34; IsModified＆＃34;在实体上，然后保存上下文。像这样......

 new ProductsBL().AddProduct(p);

实际上，您正在创建一个新实体并将其添加到商店，而不是更新现有实体。

而且，如果你用英语编码，请修改拼写：修改，相对，绝对。

如何更新图像路径并将其保存回数据库

1 个答案: