public async Task <IActionResult> OnPostUploadImageAsync(string returnUrl = null)
{
returnUrl ??= Url.Content("~/");
var group = await _context.Group
.OfType <MultiuserGroup>()
.FirstOrDefaultAsync(g => g.GroupID == UploadImageInput.GroupID);
if (UploadImageInput.GroupImage.Length < 10485760L) //10 MB
{
if (!UploadImageInput.GroupImage.ValidateFileTypeAsImage())
{
ModelState.AddModelError("File", "Invalid file type.");
}
else
{
using Stream memoryStream = UploadImageInput.GroupImage.OpenReadStream();
Image image = Image.FromStream(memoryStream).ResizeImageToFitSquare(512);
string output = _fileOperationProvider.SaveImageToFile(image, UploadImageInput.GroupImage.Name);
_fileOperationProvider.DeleteFile(group.GroupImage);
group.GroupImage = output;
await _context.SaveChangesAsync();
}
}
else
{
ModelState.AddModelError("File", "The file is too large.");
}
return(LocalRedirect(returnUrl));
}
public async Task <IActionResult> OnPostUploadAsync()
{
var chatUser = await _userManager.GetUserAsync(User);
if (ProfileImage.Length < 10485760L) //10 MB
{
if (!ProfileImage.ValidateFileTypeAsImage())
{
ModelState.AddModelError("File", "Invalid file type.");
}
else
{
using Stream memoryStream = ProfileImage.OpenReadStream();
Image image = Image.FromStream(memoryStream).ResizeImageToFitSquare(512);
string output = _fileOperationProvider.SaveImageToFile(image, ProfileImage.Name);
_fileOperationProvider.DeleteFile(chatUser.ProfileImage);
chatUser.ProfileImage = output;
await _context.SaveChangesAsync();
}
}
else
{
ModelState.AddModelError("File", "The file is too large.");
}
return(Page());
}
