public AttachmentPage(ObservationAttachment attachment = null)
{
InitializeComponent();
buttonLayout.BackgroundColor = Color.FromHex("#034468");
NavigationPage.SetBackButtonTitle(this, "Cancel");
if (attachment == null)
{
_attachment = new ObservationAttachment {
Bytes = null
};
}
else
{
_attachment = attachment;
}
ViewModel.Attachment = _attachment;
}
public JsonResult AddAttachment([Bind(Exclude = "FileBytes")] ObservationAttachment model, HttpPostedFileBase fileBytes)
{
using (Entity context = new Entity())
{
try
{
t_observation_attachment attachment = new t_observation_attachment();
attachment.observation_id = model.ObservationId;
attachment.attachment_file_name = model.FileName;
byte[] file = new byte[fileBytes.ContentLength];
int result = fileBytes.InputStream.Read(file, 0, fileBytes.ContentLength);
attachment.attachment = file;
attachment.createdby_userid = CurrentUser.Id;
attachment.created_date = DateTime.Now;
context.t_observation_attachment.Add(attachment);
context.SaveChanges();
context.Entry(attachment).Reference(n => n.createdby).Load();
return(Json(new
{
success = true,
AttachmentId = attachment.observation_attachment_id,
ObservationId = attachment.observation_id,
FileName = attachment.attachment_file_name,
FileSize = attachment.attachment.Length,
Approved = attachment.active,
CreatedBy = attachment.createdby.full_name,
CreatedOn = attachment.created_date.ToString("d")
}));
}
catch (Exception ex)
{
return(GetJsonResult(ex));
}
}
}
async void CameraButtonClicked(object sender, System.EventArgs e)
{
//taken from https://github.com/jamesmontemagno/MediaPlugin
if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
{
await App.CurrentApp.MainPage.DisplayAlert("No Camera", "No camera available.", "OK");
return;
}
var filename = DateTime.Now.ToString("yyyy-dd-M--HH-MM-ss") + ".jpg";
var file = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions
{
Directory = "USAID",
Name = filename,
PhotoSize = PhotoSize.Small
});
if (file == null)
{
return;
}
if (ViewModel.Attachments == null)
{
ViewModel.Attachments = new ObservableCollection <ObservationAttachment>();
}
//var image = new Image();
//image.Source = ImageSource.FromStream(() =>
//{
// var stream = file.GetStream();
// file.Dispose();
// return stream;
//});
System.IO.Stream stream = file.GetStream();
stream.Position = 0;
byte[] buffer = new byte[stream.Length];
for (int totalBytesCopied = 0; totalBytesCopied < stream.Length;)
{
totalBytesCopied += stream.Read(buffer, totalBytesCopied, Convert.ToInt32(stream.Length) - totalBytesCopied);
}
var attachment = new ObservationAttachment {
Bytes = buffer, Attachment_File_Name = filename, Created = DateTime.Now, Created_Date = DateTime.Now
};
//MessagingCenter.Send(attachment, "AttachmentScreen");
if (ViewModel.Attachments == null)
{
ViewModel.Attachments = new ObservableCollection <ObservationAttachment>();
}
var item = ViewModel.Attachments.Where(m => m == attachment).FirstOrDefault();
if (item != null)
{
ViewModel.Attachments.Remove(item);
ViewModel.Attachments.Add(item);
}
else
{
ViewModel.Attachments.Add(attachment);
}
changeListHeights();
}
public async void OnAttachmentsItemTapped(object sender, ItemTappedEventArgs e)
{
ObservationAttachment attach = (ObservationAttachment)e.Item;
////await Navigation.PushAsync(new ObservationPage(indicator, _site));
await Navigation.PushModalAsync(new AttachmentPage(attach));
}
