Searching methods of Virtual Earth
It is true that you have access for virtual earth map however; you can also find out the correct location of point of interest. Virtual earth SDK offers users many choices to find important information. It also allows users to display that information on the map. In this article, we will have a look at how we can make use of Find method and Find control to find out the correct location that you want. Adding a find control in a map is one of the easy and fast ways to allow users to find out businesses as well as addresses. At the right side of your map, you will study what box and where box. Therefore, in those boxes there is a category of location and business so if you will type into that category the results will appear on the map. When you will move the map around the search is automatically refreshed itself for the suggested area. Virtual earth map control behind the scenes makes use of AJAF for continuously calling to Microsoft servers and to make a search against the big yellow pages directory, which is hosted to virtual earth maps.
Though the use of Find control is easy to handle however while using find control there are few limitations like the find control is visually uninspiring and tough to change. Another problem is if users insert vague location, there appears one disambiguation dialog window. Although you will turn off the disambiguation by forcing the program virtual earth to pick the best match, users are not able to obtain expected results. Due to these limitations of find control method here comes find method. Now we will have a look at find method. We have already stated that find control makes use of VEMap.Find method. Various kinds of parameters are accepted by this find method, which includes what and where properties similar to the properties of find control method. In this find method, only you need to decide value for what and you will see that the map inserts pushpin for discovered location in an automatic way.
Now we will talk about how to customize find results. One of the best ways to customize find results is to capture the resulting pushpins in VEShapeLayer. When your results are amassed in the layer then you are able to turn on or turn off the results by making use of show and hide methods of layer.
You cannot take many benefits with this find method until resorting to callbacks. Now we will have a look on how to work with callbacks. The other way to find is by capturing results and them processing these results yourself before displaying these results to user. For instance, you may want to make use of find to for displaying a number of pushpins for every search same as maps.live.com does, displaying search results in the list than as pushpins, filtering search results according to external criteria and moving the map to the search result automatically. We can do all these things only by making use of callbacks.
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