I'm trying to convert "~/Uploads/Images/" to an absolute path I can create a FileStream from. I've tried VirtualPathUtility and Path.Combine but nothing seems to give me the right path. The closest I got was VirtualPathUtility.ToAppRelative, but that was just the file's location as a direct child of C:.
There must be a way to do this.
You are looking for the MapPath method.
// get the path in the local file system that corresponds to ~/Uploads/Images
string localPath = HttpContext.Current.Server.MapPath("~/Uploads/Images/");
Use it together with Path.Combine to create a file path:
string fileName = Path.Combine(
HttpContext.Current.Server.MapPath("~/Uploads/Images/"),
"filename.ext");
using (FileStream stream = File.OpenRead(fileName))
{
// read the file
}
In ASP.Net Core MVC 6 This can be done as,
public class YourController : Controller
{
private readonly IWebHostEnvironment env;
public YourController(IWebHostEnvironment env)
{
this.env = env;
}
// Your action method for handling file upload
public IActionResult UploadFile(IFormFile imgFile)
{
var virtualFilePath = Path.Combine("data/products/imgs", Guid.NewGuid().ToString() + Path.GetExtension(imgFile.FileName));
var webRootPath = env.WebRootPath;
var imgFilePath = Path.Combine(webRootPath, virtualFilePath);
// atomic transaction
using (var stream = new FileStream(imgFilePath, FileMode.Create))
{
imgFile.CopyTo(stream);
}
return RedirectToAction("UploadSuccess");
}
}
