private async void BtnChangeImg_Click(object sender, RoutedEventArgs e)
{
//create ContentDialog called PicturePicker
PicturePicker picturePicker = new PicturePicker();
BitmapImage item = new BitmapImage();
//show the ContentDialog
var optionPicked = await picturePicker.ShowAsync();
switch (optionPicked)
{
//if he user clicks the Primary (OK) button
case ContentDialogResult.Primary:
// display image picked
if (App.IsPictureSelected == true)
{
item.UriSource = new Uri("ms-appx://" + App.picturePicked);
imgItem.Source = item;
currentImage = App.picturePicked;
}
//close ContentDialog
break;
//if Secondary (Cancel) button is clicked
//close ContentDialog
case ContentDialogResult.Secondary:
break;
}
}
private async void ContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
MessageDialog dialog;
//if a gridItem is not selected
if (gridPictures.SelectedIndex == -1)
{
//set IsPictureSelected to false
App.IsPictureSelected = false;
//display error message
dialog = new MessageDialog("Please select an image first");
await dialog.ShowAsync();
//redisplay Picture Picker Content Dialog
PicturePicker picker = new PicturePicker();
await picker.ShowAsync();
}
else
{
//set IsPictureSelected to true
App.IsPictureSelected = true;
}
}
