problem in seaching locations

Question

I am facing a problem in searching locations. Actually what i am doing is I click on one position on map and draw circle with radius 3km. Now i want all the locations which come under that circle. If there are 100 locations than i want the list of all 100 locations.
I was using find method but it returns only 20 locations but i want all the locations either it is park or pizza or hotel or institute or school etc any location which come under that cicle .

How can i do that?
Any clue or suggestion?

Answer 1

There are a couple of ways to do this. One method is to make recursive find calls and change the start index property of the find method.

A second method is to integrate Bing Maps and MapPoint and use the POI data from MapPoint. Doing this allows you to perform a true radial search and the ability to retrieve up to 500 results at once. You also have the ability to set filters on the type of POI that is returned. Here is an article on how to integrate Bing Maps and MapPoint: http://msdn2.microsoft.com/en-us/library/cc316940.aspx

A third method is to use the Search service of the Bing Maps web services. USing this method will allow you to filter the result much easier than if you use the VEMap.Find Method. Integrating the Bing Maps Search Service is similar to integrating the MapPoint services.

http://msdn.microsoft.com/en-us/library/cc980849.aspx
http://msdn.microsoft.com/en-us/library/cc980960.aspx
http://msdn.microsoft.com/en-us/library/cc966911.aspx

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Windows Live Developer MVP - http://rbrundritt.spaces.live.com

Answer 2

hi Ruchard,
thanks for reply......
"One method is to make recursive find calls and change the start index property of the find method."

Can you explain me how to use recursive find for searching nearest location?

Can we have to pay any charges for using map point or Bing maps web services?

Answer 3

An article on how to make recursive find calls can be found here: http://rbrundritt.spaces.live.com/blog/cns!E7DBA9A4BFD458C5!739.entry

The charges usually depend on your use. If your using it for non-profit, or for a personal site it's usually ok as long as the map is publicly accessible, 

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Windows Live Developer MVP - http://rbrundritt.spaces.live.com