/// <summary>
/// Version of FindLocation that searches using a LatLong object
/// </summary>
/// <param name="aLatLong">a LatLong</param>
/// <returns></returns>
public Location FindLocation(LatLong aLatLong)
{
Location[] location = null;
try
{
if (aLatLong == null)
{
throw new System.ArgumentNullException("LatLong cannot be null");
}
//OK find something
FindSpecification fs = new FindSpecification();
fs.DataSourceName = "MapPoint.NA";
LatLong locationLatLong = aLatLong;
GetInfoOptions infoOptions = new GetInfoOptions();
location = theMapPointFindService.GetLocationInfo(locationLatLong,
MAPPOINT_NA, infoOptions);
}
catch (ArgumentNullException e)
{
throw e; // rethrow for app to handle
}
catch (Exception e)
{
throw e; // rethrow for app to handle
}
return location[0]; // zero position should be the best match
}
/// <summary>
/// Find a location like an address (1500 Central rd., Chicago, IL) or landmark (Sears tower or Navy Pier)
/// </summary>
/// <param name="locationString">address or landmark</param>
/// <returns>Location</returns>
public Location FindLocation(string locationString)
{
Location[] location = null;
try
{
if (locationString == "")
{
throw new System.ArgumentNullException("Location cannot be empty");
}
FindSpecification myFindSpec = new FindSpecification();
myFindSpec.InputPlace = locationString;
myFindSpec.DataSourceName = "MapPoint.NA";
FindResults results = theMapPointFindService.Find(myFindSpec);
// if there is no result found try it as an address instead
if (results.NumberFound == 0)
{
// if you want to use addresses instead you can use the code below
Address address = theMapPointFindService.ParseAddress(locationString, "USA");
FindAddressSpecification myFindASpec = new FindAddressSpecification();
myFindASpec.DataSourceName = "MapPoint.NA";
myFindASpec.InputAddress = address;
results = theMapPointFindService.FindAddress(myFindASpec);
}
// at this point a place (e.g. Sears Tower) or an address was not found so
// return an error
if (results.NumberFound == 0)
{
throw new System.ArgumentNullException("Location cannot be found");
}
return results.Results[0].FoundLocation;
}
catch (ArgumentNullException e)
{
throw e; // rethrow for app to handle
}
catch (Exception e)
{
throw e; // rethrow for app to handle
}
}
/// <remarks/>
public void FindAsync(FindSpecification specification, object userState) {
if ((this.FindOperationCompleted == null)) {
this.FindOperationCompleted = new System.Threading.SendOrPostCallback(this.OnFindOperationCompleted);
}
this.InvokeAsync("Find", new object[] {
specification}, this.FindOperationCompleted, userState);
}
/// <remarks/>
public void FindAsync(FindSpecification specification) {
this.FindAsync(specification, null);
}
/// <remarks/>
public System.IAsyncResult BeginFind(FindSpecification specification, System.AsyncCallback callback, object asyncState) {
return this.BeginInvoke("Find", new object[] {
specification}, callback, asyncState);
}
public FindResults Find(FindSpecification specification) {
object[] results = this.Invoke("Find", new object[] {
specification});
return ((FindResults)(results[0]));
}
