public async Task <bool> UploadAsync(IFileListEntry fileEntry)
{
if (fileEntry != null)
{
var format = "image/jpeg";
var imageFileMin = await fileEntry.ToImageFileAsync(format, 640, 480);
var imageFileMax = await fileEntry.ToImageFileAsync(format, 1024, 768);
var pathMin = Path.Combine(_appEnvironment.WebRootPath, "upload/images_min", fileEntry.Name);
var pathMax = Path.Combine(_appEnvironment.WebRootPath, "upload/images_max", fileEntry.Name);
var ms = new MemoryStream();
await imageFileMin.Data.CopyToAsync(ms);
using (FileStream fileStream = new FileStream(pathMin, FileMode.Create, FileAccess.Write))
{
ms.WriteTo(fileStream);
}
ms.Dispose();
ms = new MemoryStream();
await imageFileMax.Data.CopyToAsync(ms);
using (FileStream fileStream = new FileStream(pathMax, FileMode.Create, FileAccess.Write))
{
ms.WriteTo(fileStream);
}
FileModel file = new FileModel {
Name = fileEntry.Name, Path = "upload/images"
};
_context.Files.Add(file);
_context.SaveChanges();
return(true);
}
return(false);
}
/// <summary>
/// this will be the main function linked to the Drag N Drop on the
/// </summary>
/// <param name="files">the selected files</param>
/// <returns>the current Task Thread</returns>
async Task SelectLogo(IFileListEntry[] files)
{
//we get the first and most likely only file from the list
IFileListEntry file = files.FirstOrDefault();
//if no file was selected we return
if (file == null)
{
return;
}
else
{
//we set the loading status
Status = "Se incarca...";
ImageDimensions = await jsRuntime.InvokeAsync <Size>("getElementSize", "inputFile");
//then using the fileReader
//we need the component dimmension for the div to format the image to the correct sizes
//we retrieve the image info
//if we have the settings to mantain aspect ratio we need to reformat the image
//we initialize a new ImageFile
IFileListEntry ImageFile;
if (PageController.MaintainAspectRatio)
{
//we get the image file from the reformated image
ImageFile = await file.ToImageFileAsync(PageController.ImageFormat, (Int32)Math.Round(ImageDimensions.Width), (Int32)Math.Round(ImageDimensions.Height));
}
else
{
//we get the image file from the file directly
ImageFile = file;
}
//we initialize a new memory stream
MemoryStream ms = new MemoryStream();
//get all the data from the Image file into the memeory stream
await ImageFile.Data.CopyToAsync(ms);
//then dump the stream into a bite array and set it to the PageControllers LogoBaseProperty
PageController.LogoBase = ms.ToArray();
//we also set the status back to the default value
Status = DefaultStatus;
}
}