我需要将图像路径上传到数据库 [英] I need to Upload image path to database

问题描述

我使用以下查询上传照片

I used following query to upload a photo

objPhoto.MembershipID = Convert.ToInt32(Session["MembershipID"]);
                 DataTable dt = objPhoto.ViewRecord();
                 string file = imgUpload.FileName;
                 string fname = Session["MembershipID"].ToString();
                 string st = "~/UploadImages/";
                 string str = "-";
                 if (dt.Rows.Count > 0)
                 {
                     imgUpload.PostedFile.SaveAs(Server.MapPath("~/UploadImages/") + fname + str + dt.Rows.Count + Path.GetExtension(file));
                     objPhoto.UploadImages = st + fname + str + dt.Rows.Count + Path.GetExtension(file);
                     objPhoto.ImageID = objPhoto.ViewData();
                     imgPreview.ImageUrl = "~/UploadImages/" + fname + str + dt.Rows.Count + Path.GetExtension(file) + "";
                 }

上面提到的编码工作正常。但是我在另一种形式中使用相同的编码它显示以下错误



fileStream不会打开Win32设备，如磁盘分区和磁带驱动器。避免在路径中使用\\.\。

推荐答案

检查文件是否存在名字有保留字。您将无法创建具有保留名称的文件。



使用System.IO.Path.GetInvalidPathChars（）&System.IO.Path.GetInvalidFileNameChars（）;

这样您就可以获得无效字符的完整列表，这些字符不能是有效的文件名。在创建文件之前，你需要从文件名中替换那些字符。

Check if the file name has reserved words. You won't be able to create files with reserved names.

Use System.IO.Path.GetInvalidPathChars()& System.IO.Path.GetInvalidFileNameChars();
So that you can get full list of invalid charecters which cannot be a valid file name. You need to replace those chars from the filename before you create the file.

你好，你可以参考这是MVC但是你可以参考这个...它可以帮助你
..

Hello,YOu Can Refer This Is Of MVC But You Can Refer this ...It Might Help You
..

public ActionResult Display(HttpPostedFileBase file)
        {
            if (file != null)
            {
                EmployeeEntities context = new EmployeeEntities();
                string ImageName = System.IO.Path.GetFileName(file.FileName);
                string physicalPath = Server.MapPath("~/Images/" + ImageName);

                // save image in folder
                file.SaveAs(physicalPath);

                //save new record in database
                Image newRecord = new Image
                    {
                        fname = Request.Form["fname"],
                        lname = Request.Form["lname"],
                        ImageUrl = ImageName
                    };
                _imgRepo.Insert(newRecord);
                context.SaveChanges();

                PhotoForSingleItem tempmodel = new PhotoForSingleItem();
                tempmodel.Images = _imgRepo.GetEntities().ToList();

                return View("Display",tempmodel);
            }

            return null;

..

此代码是控制器...它肯定会帮助你..



在_imgRepo.insert（newrecord）

context.savechanges（）; ////你可以写您的插入代码..

但主要部分是物理路径..

谢谢

..
This Code Is OF Controller...It Will surely Help You..

In _imgRepo.insert(newrecord)
context.savechanges();////You Can Write Your Insert Code ..
But Main Part Is Of PhysicalPath..
Thanks

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