//unlinks two events
public bool UnLinkEvents(Event event1, Event event2)
{
bool unlinked = false;
//remove the element from the xeelent entry using linq for both events
if (event1.Links.Remove(event2.ID))
{
ROOT_DOCUMENT.Descendants(LLE + "Event")
.Where(id => id.Element(LLE + "eventid").Value == event1.ID)
.Single()
.Element(LLE + "link")
.Descendants(LLE + "eventid")
.Where(id => id.Value == event2.ID)
.Single()
.Remove();
unlinked = true;
}
if (event2.Links.Remove(event1.ID))
{
ROOT_DOCUMENT.Descendants(LLE + "Event")
.Where(id => id.Element(LLE + "eventid").Value == event2.ID)
.Single()
.Element(LLE + "link")
.Descendants(LLE + "eventid")
.Where(id => id.Value == event1.ID)
.Single()
.Remove();
unlinked = true;
}
//save the file if successful
if (unlinked)
{
ROOT_DOCUMENT.Save(FILE);
//remove the lines from the map
mapHelper.Clear("links_" + event1.ID);
mapHelper.Clear("links_" + event2.ID);
}
return(unlinked);
}
private void viewToolStripMenuItem_Click(object sender, EventArgs e)
{
//get coordinates from the mouse position
Coordinates coordinates = new Coordinates(mapCtrl.FromLocalToLatLng(MOUSE_X_COORDINATES, MOUSE_Y_COORDINATES).Lat, mapCtrl.FromLocalToLatLng(MOUSE_X_COORDINATES, MOUSE_Y_COORDINATES).Lng);
ToolboxEventFlowLayout.Controls.Clear();
//add a clear button to the form
Button clearButton = new Button();
clearButton.Text = "Clear Selection";
clearButton.Click += new EventHandler(ClearSelection);
ToolboxEventFlowLayout.Controls.Add(clearButton);
//clear the matchlines overlay
mapHelper.Clear("matchlines");
//setup for results view
int numResults = 0;
int radius = 0;
int defaultRadius = 2;
try
{
radius = Int32.Parse(radiusInput.Text);
//make sure its not negative
if (radius < 0)
{
radius = defaultRadius;
}
}
//default to 2 if the radius is not a correct value
catch (FormatException)
{
radius = defaultRadius;
}
catch (OverflowException)
{
radius = defaultRadius;
}
//get the surrounding events and draw aline to each event
foreach (Event ev in eventHelper.GetSurroundingEvents(coordinates, radius))
{
numResults++;
mapHelper.DrawLine("matchlines", ev.Location, coordinates, Color.Red);
ToolboxEventFlowLayout.Controls.Add(ev.CreatePanel());
}
//assume there will be results
Label resultNr = new Label();
resultNr.Text = numResults + " results Found. Sorted by closest event";
ToolboxEventFlowLayout.Controls.Add(resultNr);
//if no results
if (numResults == 0)
{
resultNr = new Label();
resultNr.Text = "No Results Found. Search a different area";
}
mapHelper.DrawCircle("circle", coordinates, radius, 50);
}