async void OnRegisterButtonClicked(object sender, EventArgs e)
{
bool isErrorPresent = false;
string errorMessage = "";
//Validate inputs
if (confPasswordEntry.Text != passwordEntry.Text)
{
isErrorPresent = true;
errorMessage = "Confirm password does not match";
}
if (String.IsNullOrEmpty(passwordEntry.Text))
{
isErrorPresent = true;
errorMessage = "Please enter your Password";
}
else
{
if (!Regex.IsMatch(passwordEntry.Text, @"^[a-zA-Z0-9]*$"))
{
isErrorPresent = true;
errorMessage = "Wrong format for Password. Password may only contain alphabets and numbers.";
}
}
if (String.IsNullOrEmpty(usernameEntry.Text))
{
isErrorPresent = true;
errorMessage = "Please enter your Username";
}
else
{
if (!Regex.IsMatch(usernameEntry.Text, @"^[a-zA-Z0-9]*$"))
{
isErrorPresent = true;
errorMessage = "Wrong format for Username. Username may only contain alphabets and numbers.";
}
}
if (String.IsNullOrEmpty(emailEntry.Text))
{
isErrorPresent = true;
errorMessage = "Please enter your Email";
}
else
{
if (!Regex.IsMatch(emailEntry.Text, @"^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$"))
{
isErrorPresent = true;
errorMessage = "Wrong format for Email. e.g. [email protected]";
}
}
if (String.IsNullOrEmpty(fullNameEntry.Text))
{
isErrorPresent = true;
errorMessage = "Please enter your Full Name";
}
else
{
if (!Regex.IsMatch(fullNameEntry.Text, @"^[a-zA-Z]+(([',. -][a-zA-Z ])?[a-zA-Z]*)*$"))
{
isErrorPresent = true;
errorMessage = "Wrong format for Full Name. Full name must be alphabetic.";
}
}
if (isErrorPresent)
{
//Display error message if inputs have error
await DisplayAlert("Failed", errorMessage, "OK");
}
else
{
//Send HTTP request to register user
activityIndicator.IsVisible = true;
activityIndicator.IsRunning = true;
string httpTask = await Task.Run <string>(() => HttpRequestHandler.PostRegisterNewUser(fullNameEntry.Text, emailEntry.Text, usernameEntry.Text, passwordEntry.Text, confPasswordEntry.Text));
string httpResult = httpTask.ToString();
if (httpResult == "Registration successful")
{
await DisplayAlert("Success", "You have successfully registered an account! Login now.", "OK");
var page = App.Current.MainPage as rootPage;
var loginPage = new loginPage();
page.changePage(loginPage);
}
}
}
