// Add a voice note to the Azure database and the local
// CollectionView for display if successful
private async void AddVoiceNoteAsync(VoiceNote note)
{
//Verify network connectivity is available before attempting to add note to database
if (!NetworkInterface.GetIsNetworkAvailable())
{
MessageBox.Show("Network connection unavailable. Please close app, verify your network connection, and try again.");
return;
}
bool added = true;
try
{
await noteTable.InsertAsync(note);
}
catch (MobileServiceInvalidOperationException)
{
added = false;
}
if (added)
{
notes.Add(note);
}
else
{
MessageBox.Show("Error adding note. The selected note was not added to the server. Verify that you are logged in and that a network connection is available.");
}
}
// Removes a specific VoiceNote from the Azure database. When the Azure Mobile Service
// responds, the item is removed from the local list
private async void DeleteNoteAsync(VoiceNote note)
{
//Verify network connectivity is available before attempting to add note to database
if (!NetworkInterface.GetIsNetworkAvailable())
{
MessageBox.Show("Network connection unavailable. Please close app, verify your network connection, and try again.");
return;
}
bool deleted = true;
try
{
await noteTable.DeleteAsync(note);
}
catch (MobileServiceInvalidOperationException)
{
deleted = false;
}
if (deleted)
{
notes.Remove(note);
}
else
{
MessageBox.Show("Error with deletion. The selected note(s) have not been removed from the server.");
}
}
// Initiate the capture of a voice note and store it to the
// Azure database if the user is satisfied
private async void speechBtn_Click(object sender, EventArgs e)
{
// Begin recognition using the default grammar and store the result.
SpeechRecognitionUIResult recoResult = await recoWithUI.RecognizeWithUIAsync();
// Check that a result was obtained
if (recoResult.RecognitionResult != null)
{
// Determine if the user wants to save the note.
var result = MessageBox.Show(string.Format("Heard you say \"{0}\" Save?", recoResult.RecognitionResult.Text), "Confirmation", MessageBoxButton.OKCancel);
// Save the result to the Azure Mobile Service DB if the user is satisfied.
if (result == MessageBoxResult.OK)
{
var note = new VoiceNote {
Text = recoResult.RecognitionResult.Text
};
AddVoiceNoteAsync(note);
}
}
}
