arcgis engine安装教程_mapxtreme_mapxtreme pitney(6)

You can also use ASP.NET Ajax in a MapXtreme application. This involvesthe use of JavaScript to update specific data fields without refreshingthe entire page. It improves application performance by reducingnetwork traffic and eliminating constant page refreshes. The end resultis that your Web application has more of a desktop-like responsiveness.In addition, MapXtreme Web controls, themselves, are JavaScript-enabledand do not trigger a full-page postback with each use.

To use ASP.NET Ajax, you place a Visual Studio ScriptManager controlonto the form, and then drag an AJAX UpdatePanel control onto the formin the area you want to apply Ajax. Then you move the appropriatecontrols, such as Button or Text controls, inside the UpdatePanel. TheWindows UpdatePanel control automatically provides the mechanism forcommunicating with the server for fast updates.

There are many more features than can be described in a short review.Developers can add themes to the map in order to display location ordemographic data in thematic ways, and add legends to be able toidentify features on maps.

You can also do geocoding - determining the geographic location of astreet address, intersection, place or postal code in order to locateit on a map. Geocoding makes use of a Pitney Bowes Business Insight Webservice that is a separate product from MapXtreme v7.0. You cso work with raster images and grids to expand the availability ofmaps and map features.

Finishing Up and Deploying

You deploy a completed application as you would a rich client on thedesktop or Web application on IIS. A Web application, of course, isdeployed only once on a server running IIS, while a desktop applicationcan be installed on many systems. MapXtreme v7.0 requires that youinclude a runtime license in every deployment, whether desktop or Web.To do so, you must either provide the license in your package orincorporate a licensing tool for your customers to obtain the licensethemselves.

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