async void saveUserData()
{
try
{
//get file
Windows.Storage.StorageFile myFile = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync(filename);
//read
//String data = await Windows.Storage.FileIO.ReadTextAsync(myFile);
//save
//string allUserDataString = name + ", " + birthday + ", " + age + ", " + sex + ", " + educationLevel;
Windows.Data.Json.JsonObject newPatient = new Windows.Data.Json.JsonObject();
newPatient["Doctor"] = Windows.Data.Json.JsonValue.CreateStringValue(docName);
newPatient["Name"] = Windows.Data.Json.JsonValue.CreateStringValue(name);
newPatient["Birthday"] = Windows.Data.Json.JsonValue.CreateStringValue(birthday.ToString());
newPatient["Age"] = Windows.Data.Json.JsonValue.CreateNumberValue(age);
newPatient["Sex"] = Windows.Data.Json.JsonValue.CreateStringValue(sex.ToString());
newPatient["Education"] = Windows.Data.Json.JsonValue.CreateStringValue(educationLevel);
//check if user is already saved
bool addNew = true;
for (uint i=0; i < patients.Count; i++){
if (patients.GetObjectAt(i).GetNamedValue("Name").GetString() == newPatient["Name"].GetString() && patients.GetObjectAt(i).GetNamedValue("Birthday").GetString() == newPatient["Birthday"].GetString())
{
//patient info already saved
// Create the message dialog and set its content
var messageDialog = new MessageDialog("We already have a patient with that name and birthday. Do you want to replace the existing patient?");
// Add commands and set their callbacks
string jsonPatient = newPatient.Stringify();
messageDialog.Commands.Add(new UICommand("Replace Old Patient", new UICommandInvokedHandler(this.replacePatient), jsonPatient));
messageDialog.Commands.Add(new UICommand("Keep Original Patient", new UICommandInvokedHandler(this.doNothing)));
// Set the command that will be invoked by default
messageDialog.DefaultCommandIndex = 0;
// Set the command to be invoked when escape is pressed
messageDialog.CancelCommandIndex = 1;
// Show the message dialog
await messageDialog.ShowAsync();
addNew = false;
}
}
if(addNew)
{
patients.Add(newPatient);
}
string jsonAllPatientsString = patients.Stringify();
await Windows.Storage.FileIO.WriteTextAsync(myFile, jsonAllPatientsString);
//await Windows.Storage.FileIO.WriteTextAsync(myFile, ""); //uncomment this to erase database
}
catch (FileNotFoundException)
{
//file did not exist so create it - SHOULD NEVER HAPPEN because of "openIfExists"
Popup p = new Popup();
TextBlock t = new TextBlock();
t.Text = "Error: file could not be opened";
p.Child = t;
create_file();
}
}
