protected override void OnNavigatedTo(NavigationEventArgs e)
{
var viewModel = this.DataContext as AttachmentListViewModel;
// If viewModel is not null it means that the user navigated back to this page and the viewModel is already loaded.
if (viewModel == null)
{
string workItemId = string.Empty;
if (this.NavigationContext.QueryString.TryGetValue("workItemId", out workItemId))
{
viewModel = new AttachmentListViewModel(string.Format(CultureInfo.InvariantCulture, "WorkItems({0})", workItemId));
if (this.State.ContainsKey("CurrentPageNumber"))
{
viewModel.PageNumber = (int)this.State["CurrentPageNumber"];
}
viewModel.LoadData();
this.DataContext = viewModel;
}
else
{
MessageBox.Show("Navigating from a page different to the 'Work Items' page is not supported.", "Not Supported", MessageBoxButton.OK);
}
}
}
public async Task <JsonResult> ProcessImportFile(IEnumerable <IFormFile> files, string importedById)
{
if (files != null && files.Count() > 0)
{
AttachmentListViewModel AttachmentList = new AttachmentListViewModel();
AttachmentList.Attachments = new List <AttachmentViewModel>();
foreach (var file in files)
{
AttachmentViewModel uploadFile = new AttachmentViewModel();
if (file == null)
{
return(new JsonResult(new { Status = ResponseCodes.FileUploadFailed }));
}
if (file.Length == 0)
{
return(new JsonResult(new { Status = ResponseCodes.FileUploadFailed }));
}
var extension = Path.GetExtension(file.FileName);
var fileType = GetContainerFileType(extension);
var containerName = GetContainerName(fileType);
var attachmentId = Guid.NewGuid();
var Url = await _azureBlobService.UploadFileToBlob(_appSetting.AzureBlobStorageConnectionString, containerName, file);
if (Url != null)
{
var attachment = new Attachment
{
Id = attachmentId,
FileName = file.FileName,
Extension = extension,
IsDeleted = 0,
AttachmentType = (int)fileType,
UserId = importedById,
CreatedDateTime = DateTime.UtcNow,
LastUpdatedDateTime = DateTime.UtcNow,
CreatedBy = "System",
LastUpdatedBy = "System",
Title = file.FileName,
FileUrl = Url.ToString()
};
await _dbContext.Attachments.AddAsync(attachment);
await _dbContext.SaveChangesAsync();
uploadFile.Id = attachmentId;
uploadFile.Extension = extension;
uploadFile.Name = file.FileName;
//uploadFile.title = file.FileName;
uploadFile.Image = Url.ToString();
uploadFile.ThumbImage = Url.ToString();
}
AttachmentList.Attachments.Add(uploadFile);
AttachmentList.Status = ResponseCodes.FileUploadSuccess;
}
return(new JsonResult(AttachmentList));
}
return(new JsonResult(new { Status = ResponseCodes.FileUploadFailed }));
}
