Open heat map

What is OpenHeatMap?

For users OpenHeatMap is a service designed to make it easy for non-specialists to create maps communicating information. It transforms data from a traditional data source such as a spreadsheet into an interactive animated view of a particular area. You can then share that map online, a bit like YouTube for geographic visualizations.

For developers, it’s a JQuery plugin that makes it easy to create a completely open-source mapping component on any web page, using either Flash or HTML5’s Canvas element under the hood depending on the platform and preferences.

Here you can upload ay csv / spreadsheet thru which you can display map alongwith information..


Just go through this map I created by my own..


OpenHeatMap

ASP.net with AJAX

What is ASP.NET AJAX?

ASP.NET AJAX refers to new components in ASP.NET that allow for building rich AJAX styled web applications using the design patterns familiar to ASP.NET developers. ASP.NET AJAX 1.0 was available as a separate add-on for ASP.NET 2.0. With the release of ASP.NET 3.5, the AJAX components have been integrated into ASP.NET (no separate download required). 

AJAX components in ASP.NET integrate cross-browser script libraries with the ASP.NET server side Web application framework. This integrated architecture empowers developers to rapidly create pages with sophisticated, responsive user interfaces and more efficient client-server communication by simply adding a few server controls to their pages.

Server-side AJAX Programming

Developers familiar with ASP.NET's server-side programming model can add AJAX functionality using the familiar server controls, and the convenient drag and drop gestures. For example, partial update functionality can be added to ASP.NET applications by wrapping sections of their websites in the AJAX server control 'UpdatePanel', which enables the server controls to update without a post back. This is as simple as AJAX programming gets. Developers don't have to learn about the underlying scripting or browser technologies. Based on the ASP.NET server side design patterns, developers continue to get key advantages such as a clean declarative model of specifying web page UI, an event-driven programming model, and a rich set of APIs from the .NET Framework.

Client-side AJAX Programming

Developers with a basic understanding of JavaScript can leverage client-side AJAX framework, that allows building client centric AJAX applications. For example, the client AJAX Framework allows developers to build rich client side components and controls and make calls to remote servers, including web services and then updating the Web page with the response. The response can be an HTML snippet or an XML document, allowing for simple or extensive updates to the Web page. 

The Client side AJAX Framework works well with ASP.NET. The ASP.NET team also ships this framework independently as Microsoft AJAX Library. Since this framework is not tightly coupled with ASP.NET, it can be used with other server side technologies as well such as PHP and Cold Fusion.

ASP.NET AJAX Programming

ASP.NET AJAX shines in its ability to combine the best of server-side and client-side AJAX programming, providing Web applications with a user experience similar to the richness of traditional desktop applications. Watch some of the following videos to learn how simple it is to get started with ASP.NET AJAX programming.

asp.net web apps

ASP.NET has better language support, a large set of new controls and XML based components, and better user authentication.

ASP.NET provides increased performance by running compiled code.

ASP.NET code is not fully backward compatible with ASP.

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Language Support

ASP.NET uses the new ADO.NET.

ASP.NET supports full Visual Basic, not VBScript.

ASP.NET supports C# (C sharp) and C++.

ASP.NET supports JScript as before.

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ASP.NET Controls

ASP.NET contains a large set of HTML controls. Almost all HTML elements on a page can be defined as ASP.NET control objects that can be controlled by scripts.

ASP.NET also contains a new set of object oriented input controls, like programmable list boxes and validation controls.

A new data grid control supports sorting, data paging, and everything you expect from a dataset control.

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Event Aware Controls

All ASP.NET objects on a Web page can expose events that can be processed by ASP.NET code.

Load, Click and Change events handled by code makes coding much simpler and much better organized.

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ASP.NET Components

ASP.NET components are heavily based on XML. Like the new AD Rotator, that uses XML to store advertisement information and configuration.

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User Authentication

ASP.NET supports forms-based user authentication, including cookie management and automatic redirecting of unauthorized logins.

(You can still do your custom login page and custom user checking).

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User Accounts and Roles

ASP.NET allows for user accounts and roles, to give each user (with a given role) access to different server code and executables.

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High Scalability

Much has been done with ASP.NET to provide greater scalability.

Server to server communication has been greatly enhanced, making it possible to scale an application over several servers. One example of this is the ability to run XML parsers, XSL transformations and even resource hungry session objects on other servers.

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Compiled Code

The first request for an ASP.NET page on the server will compile the ASP.NET code and keep a cached copy in memory. The result of this is greatly increased performance.

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Easy Configuration

Configuration of ASP.NET is done with plain text files.

Configuration files can be uploaded or changed while the application is running. No need to restart the server. No more metabase or registry puzzle.

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Easy Deployment

No more server restart to deploy or replace compiled code. ASP.NET simply redirects all new requests to the new code.

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Compatibility

ASP.NET is not fully compatible with earlier versions of ASP, so most of the old ASP code will need some changes to run under ASP.NET.

To overcome this problem, ASP.NET uses a new file extension ".aspx". This will make ASP.NET applications able to run side by side with standard ASP applications on the same server.