//Upload a symbolicLocation in the background (update or create)
//Form: AsyncTask<[Input Parameter Type], [Progress Report Type], [Result Type]>
private void UploadSymbolicLocationTask(SymbolicLocation tmpSymLoc)
{
isUploading = true;
mContext = LocationService.radiomapContext;
Vertex currentVertex = Map2DOffline.SelectedOfflineVertex;
SymbolicLocation currentSymLoc = currentVertex.SymbolicLocations.FirstOrDefault();
//1) upload NEW symbolic location
if (currentSymLoc == null)
{
mContext.AddRelatedObject(currentVertex, "SymbolicLocations", tmpSymLoc);
currentVertex.SymbolicLocations.Add(tmpSymLoc);
}
//2) or UPDATE existing
else
{
//copy updated values
currentSymLoc.title = tmpSymLoc.title;
currentSymLoc.description = tmpSymLoc.description;
currentSymLoc.url = tmpSymLoc.url;
currentSymLoc.is_entrance = tmpSymLoc.is_entrance;
mContext.UpdateObject(currentSymLoc);
}
try
{
mContext.BeginSaveChanges(OnChangesSaved, mContext);
//uploadProgressBar.Visibility = System.Windows.Visibility.Visible;
uploadProgressIndicator.IsVisible = isUploading;
}
catch (Exception ex)
{
isUploading = false;
uploadProgressIndicator.IsVisible = isUploading;
MessageBox.Show(string.Format("The changes could not be saved.\n"
+ "The following error occurred: {0}", ex.Message));
}
}
void saveButton_Click(object sender, EventArgs e)
{
//tmpSymLoc is used to pass data to UploadSymbolicLocationTask
//Whether the operation is CREATE or UPDATE is determined in UploadSymbolicLocationTask
SymbolicLocation tmpSymLoc = new SymbolicLocation();
tmpSymLoc.title = titleTextBox.Text;
tmpSymLoc.description = descriptionTextBox.Text;
tmpSymLoc.url = urlTextBox.Text;
tmpSymLoc.is_entrance = isEntranceCheckBox.IsChecked;
int selectedInfoType = infoTypeListBox.SelectedIndex;
tmpSymLoc.info_type = selectedInfoType < 0 ? 0 : selectedInfoType;
UploadSymbolicLocationTask(tmpSymLoc);
}
private void initializeInputBoxes()
{
SymbolicLocation tmpSymLoc = Map2DOffline.SelectedOfflineVertex.SymbolicLocations.FirstOrDefault();
if (tmpSymLoc == null)
{
tmpSymLoc = new SymbolicLocation();
}
else //populate the input boxes
{
//Binding is not worth the hassle, but goes like this:
//Binding titleBinding = new Binding("title");
//titleBinding.Source = tmpSymLoc;
//titleTextBox.SetBinding(TextBlock.TextProperty, titleBinding);
titleTextBox.Text = tmpSymLoc.title ?? "";
descriptionTextBox.Text = tmpSymLoc.description ?? "";
urlTextBox.Text = tmpSymLoc.url ?? "";
isEntranceCheckBox.IsChecked = tmpSymLoc.is_entrance;
}
}
