async void OnUpdateButtonClicked(object sender, EventArgs e)
{
bool isErrorPresent = false;
string errorMessage = "";
string pollQuestion = "";
//Validate user inputs
if (pollQuestionInput.Text == "")
{
isErrorPresent = true;
errorMessage = "Please enter poll question. ";
}
if (selectedOption == "")
{
isErrorPresent = true;
errorMessage = "Please enter number of poll option. ";
}
//Obtain the inputs for options
string[] options = new string[optionListLayout.Children.Count()];
int count = 0;
foreach (StackLayout layout in optionListLayout.Children)
{
foreach (View view in layout.Children)
{
if (view.GetType() == typeof(Frame))
{
if (((Frame)view).Content.GetType() == typeof(Entry))
{
Entry entry = (Entry)((Frame)view).Content;
options[count] = entry.Text;
count++;
}
}
}
}
if (options.Count() <= 0)
{
isErrorPresent = true;
errorMessage = "Please enter poll option fields. ";
}
if (!isErrorPresent)
{
//If inputs are valid, proceed to update the poll
if (adminAuth.Username != null && adminAuth.Password != null)
{
activityIndicator.IsVisible = true;
activityIndicator.IsRunning = true;
string httpTask = await Task.Run <string>(() => HttpRequestHandler.PostUpdatePoll(adminAuth.Username, adminAuth.Password, pollQuestionInput.Text, selectedOption, options, currentPoll));
string httpResult = httpTask.ToString();
activityIndicator.IsVisible = false;
activityIndicator.IsRunning = false;
if (httpResult == "Successfully updated the poll!")
{
await DisplayAlert("Success", "Poll has been successfully updated!", "OK");
var page = App.Current.MainPage as rootPage;
var pollPage = new pollPage();
page.changePage(pollPage);
}
else
{
await DisplayAlert("Failed", httpResult, "OK");
}
}
else
{
Console.WriteLine("User is not logged in");
}
}
else
{
await DisplayAlert("Failed", errorMessage, "OK");
}
}
