/// <summary>
/// Start a search thread
/// </summary>
public void SearchPoiAction()
{
CurrentList = DataList;
// Stop previous fetching if Processing=true
if (Processing)
{
Processing = false;
return;
}
if (!Append)
{
DataList.Clear();
}
if (fetchThread != null && !fetchThread.IsAlive)
{
fetchThread.Abort();
}
fetchThread = new Thread(e =>
{
this.Processing = true;
try
{
if (!String.IsNullOrEmpty(Keyword))
{
SearchPoi(Keyword, City, int.Parse(Offset));
}
}
catch (Exception ex)
{
App.Current.Dispatcher.Invoke((Action) delegate
{
DialogWindow.ShowMessage(null, "We encountered an error when fetching data:\n" + ex.Message, "Sorry");
});
}
finally
{
this.Processing = false;
}
});
fetchThread.Start();
// Internal POI fetching method
void SearchPoi(string keyword, string city, int recordPerPage = 50, int maxRecords = -1)
{
int totalRecord = 0;
List <POI> resultList = SearchPOIRequest(keyword, city, recordPerPage, 1, out totalRecord);
MaxProgressValue = (int)Math.Ceiling((float)totalRecord / (float)recordPerPage);
CurrentProgressValue = 1;
Thread.Sleep(int.Parse(Interval));
if (resultList.Count >= 0)
{
if (totalRecord > recordPerPage)
{
for (int i = 2; i <= MaxProgressValue && Processing; i++)
{
List <POI> pendingList = SearchPOIRequest(keyword, city, recordPerPage, i, out totalRecord);
resultList.AddRange(pendingList);
CurrentProgressValue++;
Thread.Sleep(int.Parse(Interval));
}
}
}
resultList.ForEach((Action <POI>)(poi =>
{
// Update displaylist in main thread
App.Current.Dispatcher.Invoke((Action) delegate
{
this.DataList.Add(poi);
});
}));
// Update displaylist in main thread
App.Current.Dispatcher.Invoke((Action) delegate
{
this.Processing = true;
//MaxPage = (int)Math.Ceiling((float)DataList.Count / (float)int.Parse(offset));
RecordPerPage = recordPerPage;
CurrentPage = 1;
//RefreshDataPage();
});
}
}
