private async void btn_AgregarImagen_Tapped(object sender, TappedRoutedEventArgs e)
{
profesor_seleccionado = null;
FileOpenPicker openPicker = new FileOpenPicker();
openPicker.ViewMode = PickerViewMode.Thumbnail;
openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
openPicker.FileTypeFilter.Add(".jpg");
openPicker.FileTypeFilter.Add(".png");
StorageFile file = await openPicker.PickSingleFileAsync();
if (file != null)
{
var stream = await file.OpenAsync(Windows.Storage.FileAccessMode.Read);
var image = new BitmapImage();
image.SetSource(stream);
Stream imgStream = stream.AsStream();
imgStream.Position = 0;
if (profesor_seleccionado != null)
{
profesor_seleccionado.profesor.imagen = imgStream;
}
imgPtr = imgStream;
img_profesor.Source = image;
}
}
private async void ProfesoresGrid_ItemClick(object sender, ItemClickEventArgs e)
{
ProfesoresItem item = (e.ClickedItem) as ProfesoresItem;
profesor_seleccionado = item;
MemoryStream stream = null;
BitmapImage bitmap = null;
if (item.Categoria == "Agregar")
{
btn_Agregar.IsEnabled = true;
btn_Agregar.Visibility = Visibility.Visible;
btn_Actualizar.IsEnabled = false;
btn_Actualizar.Visibility = Visibility.Collapsed;
btn_Eliminar.IsEnabled = false;
btn_Eliminar.Visibility = Visibility.Collapsed;
}
else
{
btn_Agregar.IsEnabled = false;
btn_Agregar.Visibility = Visibility.Collapsed;
btn_Actualizar.IsEnabled = true;
btn_Actualizar.Visibility = Visibility.Visible;
btn_Eliminar.IsEnabled = true;
btn_Eliminar.Visibility = Visibility.Visible;
txtbx_Nombre.Text = item.profesor.nombre;
txtbx_Apellidos.Text = item.profesor.apellidos;
txtbx_Departamento.Text = item.profesor.departamento;
txtbx_codigo_postal.Text = item.profesor.cod_postal.ToString();
txtbx_provincia.Text = item.profesor.provincia;
txtbx_correo.Text = item.profesor.correo;
try
{
if (item.profesor.imagen != null)
{
stream = new MemoryStream();
await item.profesor.imagen.CopyToAsync(stream);
bitmap = new BitmapImage();
item.profesor.imagen.Position = 0;
stream.Position = 0;
await bitmap.SetSourceAsync(stream.AsRandomAccessStream());
await item.profesor.imagen.FlushAsync();
await stream.FlushAsync();
img_profesor.Source = bitmap;
}
} catch (Exception eSql)
{
await new Windows.UI.Popups.MessageDialog("Error al leer la imagen!").ShowAsync();
System.Diagnostics.Debug.WriteLine("Error!: " + eSql.Message);
}
}
AgregarProfesoresPopup.IsOpen = true;
}