public searchTenderPage()
{
BindingContext = this;
InitializeComponent();
//Send Http request to retrieve search page originating station drop down
Task <string> httpTask = Task.Run <string>(() => HttpRequestHandler.GetRequest("http://www2.sesco.com.my/etender/notice/notice_search.jsp", false));
var httpResult = httpTask.Result.ToString();
//--------Station Picker Control Section---------------------------------------------
//Small data extraction to extract Station dropdown selects/options to fill Picker
HtmlDocument htmlDoc = new HtmlDocument();
HtmlNode.ElementsFlags.Remove("option");
htmlDoc.LoadHtml(httpResult);
var stationList = new List <string>();
foreach (HtmlNode node in htmlDoc.DocumentNode.SelectNodes("//select[@name='SchStation']//option"))
{
stationList.Add(node.InnerText);
}
stationPicker.ItemsSource = stationList;
//set default origin station Picker value
//stationPicker.SelectedIndex = 0;
stationPicker.SelectedIndexChanged += OnPickerSelectedIndexChanged;
//---------End Station Picker Control Section-----------------------------------------
//---------DatePicker Control Section---------------
//set datepicker text color to light gray to simulate not-filled
closingdateFrom.TextColor = Color.LightGray;
closingdateTo.TextColor = Color.LightGray;
bidclosingdateFrom.TextColor = Color.LightGray;
bidclosingdateTo.TextColor = Color.LightGray;
closingdateFrom.DateSelected += DatePicker_DateSelected;
closingdateTo.DateSelected += DatePicker_DateSelected;
bidclosingdateFrom.DateSelected += DatePicker_DateSelected;
bidclosingdateTo.DateSelected += DatePicker_DateSelected;
//---------End DatePicker Control Section---------------------------------------------
searchButton.Clicked += OnSubmitButtonClicked;
clearButton.Clicked += OnClearButtonClicked;
//Event Handler Arguments
void OnPickerSelectedIndexChanged(object sender, EventArgs e)
{
Picker picker = (Picker)sender;
if (picker.SelectedIndex > 0)
{
selectedStation = stationPicker.Items[stationPicker.SelectedIndex];
}
else
{
selectedStation = null;
}
Console.WriteLine("Selected station: " + selectedStation);
}
void DatePicker_DateSelected(object sender, DateChangedEventArgs e)
{
if (sender == closingdateFrom)
{
closingdatefrom = e.NewDate.ToString();
closingdateFrom.TextColor = Color.Black;
}
else if (sender == closingdateTo)
{
closingdateto = e.NewDate.ToString();
closingdateTo.TextColor = Color.Black;
}
else if (sender == bidclosingdateFrom)
{
bidclosingdatefrom = e.NewDate.ToString();
bidclosingdateFrom.TextColor = Color.Black;
}
else if (sender == bidclosingdateTo)
{
bidclosingdateto = e.NewDate.ToString();
bidclosingdateTo.TextColor = Color.Black;
}
}
async void OnSubmitButtonClicked(object sender, EventArgs e)
{
if (sender == searchButton)
{
/*Console.WriteLine("Ref: " + tenderReferenceInput.Text);
* Console.WriteLine("Title: " + tenderTitleInput.Text);
* Console.WriteLine("Station: " + selectedStation);
* Console.WriteLine("closingdatefrom: " + closingdatefrom);
* Console.WriteLine("closingdateto: " + closingdateto);
* Console.WriteLine("bidclosingdatefrom: " + bidclosingdatefrom);
* Console.WriteLine("bidclosingdateto: " + bidclosingdateto);*/
if (String.IsNullOrEmpty(tenderReferenceInput.Text) && String.IsNullOrEmpty(tenderTitleInput.Text) && selectedStation == "" && closingdatefrom == "" && closingdateto == "" &&
bidclosingdatefrom == "" && bidclosingdateto == "")
{
DisplayAlert("Error", "Please enter at least one search field", "Okay");
}
else
{
//Sending HTTP request to obtain the tender page search result data
Task <string> httpSearchTask = Task.Run <string>(() => HttpRequestHandler.SearchPostRequest("http://www2.sesco.com.my/etender/notice/notice.jsp", tenderReferenceInput.Text, tenderTitleInput.Text, selectedStation, closingdatefrom, closingdateto, bidclosingdatefrom, bidclosingdateto));
var httpSearchResult = httpSearchTask.Result.ToString();
//Console.WriteLine(httpSearchResult);
await Navigation.PushAsync(new tenderSearchResultPage(httpSearchResult));
}
}
}
void OnClearButtonClicked(object sender, EventArgs e)
{
if (sender == clearButton)
{
tenderReferenceInput.Text = "";
tenderTitleInput.Text = "";
stationPicker.SelectedIndex = 0;
selectedStation = "";
closingdatefrom = "";
closingdateto = "";
bidclosingdatefrom = "";
bidclosingdateto = "";
closingdateFrom.TextColor = Color.LightGray;
closingdateTo.TextColor = Color.LightGray;
bidclosingdateFrom.TextColor = Color.LightGray;
bidclosingdateTo.TextColor = Color.LightGray;
}
}
}
