Data Caching in ASP.NET

Data Caching in ASP.NET is facilitated via the Cache class and the CacheDependency class in the System.Web.Caching namespace. The Cache class provides methods for inserting data and retrieving data from the cache. The CacheDependency class enables dependencies to be specified for the data items placed in the cache. An expiration policy for an item can be specified when we add it to the cache using the Insert method or Add method. We can define the life span for an item in the cache by using the absoluteExpiration parameter in the Insert method. This parameter allows one to specify the exact datetime that the corresponding data item will expire. One can also use the slidingExpiration parameter, specifying the elapsed time before the item will expire based on the time it was accessed. Once the item expires, it is removed from the cache. Attempts to access it will return a null value unless the item is added to the Cache again.

Specifying Dependencies for Cache

ASP.NET allows us to define the dependency of a cached item based on an external file, a directory, or another cached item. These are described as file dependencies and key dependencies. If a dependency changes, the cached item gets automatically invalidated and removed from the cache. We can use this approach to delete items from the cache when the corresponding data source changes. For example, if we write an application that retrieves data from an XML file and displays it in a grid, we can store the data from the file in the Cache and specify a Cache dependency on the XML file. When the XML file is updated, the data item gets removed from the cache. When this event occurs, the application reads the XML file again, and the latest copy of the data item is inserted into the cache again. Further, callback event handlers can be specified as a listener for getting notified when the cache item gets deleted from the cache. This eliminates the need to continuously poll the cache to determine whether the data item has been invalidated.

ASP.NET Cache Dependency on Oracle Database

Let us consider a scenario where data is stored in the Oracle database and accessed by an ASP.NET application using ADO.NET. Furthermore, let us assume that the data in the database table(s) is generally static but accessed frequently by the Web application. In a nutshell, there are very few DML operations on the table but lots of Selects on the data. Such a scenario is ideal for data caching. But unfortunately, ASP.NET does not allow a dependency to be specified whereby a cache item is dependent on data stored in a database table. Furthermore, in real world Web based systems, the Web server and the Oracle database server could be potentially running on different machines, making this cache invalidation process more challenging. Also most Web-based applications are deployed using Web farms with instances of the same application running on multiple Web servers for load balancing. This scenario makes the database caching problem slightly more complex.

For exploring the solution to the above problem, let’s put together a sample Web application to illustrate how it can be implemented. For our example, we use ASP.NET application implemented in VB .Net communicating with the Oracle 9i database using Oracle Data Provider for .NET (ODP).

In this example, consider a table named Employee in the Oracle database. We define a trigger for insert, update and delete operations on the Employee table. This trigger calls a PL/SQL function that serves as a wrapper for a Java stored procedure. This Java stored procedure in turn will be responsible for updating the Cache dependency file.

ASP.NET Tier Implementation Using VB.NET

On the ASP.NET tier, we have a listener class containing a callback method to handle the notification when the cache item gets invalidated.

The callback method RemovedCallback is registered by using a delegate function. The callback method onRemove declaration must have the same signature as the CacheItemRemovedCallback delegate declaration.

Dim onRemove As CacheItemRemovedCallback = Nothing

onRemove = New CacheItemRemovedCallback(AddressOf RemovedCallback)

The definition for the listener event handler method RemovedCallback responsible for handling the notification from the database trigger is illustrated below. When the cache item gets invalidated, data is retrieved from the database by using the database method call getRecordFromdatabase(). The parameter “key” refers to the index location for the item removed from the cache. The parameter “value” refers to the data object removed from the cache. The parameter “CacheItemRemovedReason” specifies the reason causing the data item to be removed from the cache.

PublicSub RemovedCallback(ByVal key AsString, ByVal value AsObject,

ByVal reason As CacheItemRemovedReason)

Dim Source As DataView

Source = getRecordFromdatabase()

Cache.Insert(“employeeTable “, Source, New

System.Web.Caching.CacheDependency(“d:\download\tblemployee.txt”),

Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration,

CacheItemPriority.Normal, onRemove)

EndSub

The method getRecordFromdatabase() is responsible for querying the database table Employee and it returns a DataView object reference. It makes use of a stored procedure called getEmployee to abstract the SQL for retrieving the data from the Employee table. The method expects a parameter called p_empid representing the primary key for the Employee table.

PublicFunction getRecordFromdatabase (ByVal p_empid As Int32) As DataView

Dim con As OracleConnection = Nothing

Dim cmd As OracleCommand = Nothing

Dim ds As DataSet = Nothing

Try

con = getDatabaseConnection(

“UserId=scott;Password=tiger;Data Source=testingdb;”)

cmd = New OracleCommand(“Administrator.getEmployee”, con)

cmd.CommandType = CommandType.StoredProcedure

cmd.Parameters.Add(New OracleParameter(“employeeId”,

OracleDbType.Int64)).Value = p_empid

Dim param AsNew OracleParameter(“RC1″, OracleDbType.RefCursor)

cmd.Parameters.Add(param).Direction = ParameterDirection.Output

Dim myCommand AsNew OracleDataAdapter(cmd)

ds = New DataSet

myCommand.Fill(ds)

Dim table As DataTable = ds.Tables(0)

Dim index As Int32 = table.Rows.Count

Return ds.Tables(0).DefaultView

Catch ex As Exception

ThrowNew Exception(“Exception in Database Tier Method

getRecordFromdatabase () ” + ex.Message, ex)

Finally

Try

cmd.Dispose()

Catch ex As Exception

Finally

cmd = Nothing

EndTry

Try

con.Close()

Catch ex As Exception

Finally

con = Nothing

EndTry

EndTry

EndFunction

The function getDatabaseConnection accepts a connectionstring as an argument and returns an OracleConnection object reference.

PublicFunction getDatabaseConnection(ByVal strconnection as string) As

OracleConnection

Dim con As Oracle.DataAccess.Client.OracleConnection = Nothing

Try

con = New Oracle.DataAccess.Client.OracleConnection

con.ConnectionString = strconnection

con.Open()

Return con

Catch ex As Exception

ThrowNew Exception(“Exception in Database Tier Method

getOracleConnection() ” + ex.Message, ex)

EndTry

EndFunction

Oracle Database Tier Implementation

The Trigger body defined for DML events on the Employee Table is shown below. This trigger simply invokes a PL/SQL wrapper function for updating an operating system file called tblemployee.txt. Copies of this file are updated on two different machines called machine1 and machine2 that are running different instances of the same Web application to enable load balancing. Here administrator refers to the owner of the schema objects in the Oracle database.

begin

administrator.plfile(‘machine1\\download\\ tblemployee.txt’);

administrator.plfile(‘machine2\\download\\ tblemployee.txt’);

end;

For updating the cache dependency file, we will need to write a C function or a Java stored procedure. In our example, we chose a Java stored procedure since Oracle database server has a built-in JVM, making it easy to write Java stored procedures. Adequate memory must be allocated for the Java Pool in the System global area (SGA) of the Oracle instance. The static method updateFile accepts an absolute pathname as a parameter and creates the cache dependency file in the appropriate directory. If the file already exists, it is deleted and created again.

import java.io.*;

public class UpdFile {

public static void updateFile(String filename) {

try {

File f = new File(filename);

f.delete();

f.createNewFile();

}

catch (IOException e)

{

// log exception

}

}

};

The pl/sql wrapper implementation is shown below. The wrapper function accepts the filename as a parameter and invokes the method updateFile in the Java stored procedure.

(p_filename IN VARCHAR2)

AS LANGUAGE JAVA

NAME ‘UpdFile.updateFile (java.lang.String)’;

Database Caching in a Web Farm Deployment

As illustrated in the example we have discussed, Web Servers machine1 and machine2 constitute the Web farm to provide load balancing for our Web application. Each machine runs an instance of the same Web application. In this scenario, each instance of the Web application can have its own copy of the cached data stored in its Cache object. When the employee table changes, the corresponding database trigger updates the file tblemployee.txt on both of these machines. Each instance of the Web application specifies a cache dependency on the local file tblemployee.txt, and the cache for both the instances in the Web Farm gets updated correctly, enabling the data cache on both the instances to remain in sync with the database table Employee.

Conclusion

Data Caching can be an effective technique for optimizing ASP.NET applications using the Oracle database. Although ASP.NET does not allow database dependency to be specified for the cache, Oracle triggers in conjunction with Java stored procedures can be used to extend the power of the ASP.NET cache to enable Oracle database caching. This technique can also be applied to Web Farm deployments.

ASP.NET 4 includes a handful of new methods, properties, and libraries to assist with search engine optimization, including ASP.NET Routing, permanent redirects, and the ability to programmatically specify values for certain <meta> tags. This article examines these enhancements and shows how they can be used for SEO purposes. Read on to learn more!

Use ASP.NET Routing to Generate SEO-Friendly URLs
There are countless articles online about creating “SEO-friendly URLs.” (A search on Google returns over 335,000 results!) In general, these articles recommend creating short, readable URLs that include keywords about the page in the URL itself. For example, rather than having a URL like www.example.com/scripts/ShowProductsInCategory.aspx?CategoryID=342 a better choice would bewww.example.com/categories/Beverages/products. Note how the latter URL is terser, can be understood by reading it, and contains keywords pertinent to the page, including the name of the category of interest, “Beverages.”

In the past, supporting such clean, SEO-friendly URLs in ASP.NET was anything but easy, as ASP.NET has traditionally required a tight correspondence between the URL and the name of the ASP.NET page servicing the request. There were ways to get around this limitation, through third-party products or through creating your own HTTP Module or HTTP Handler to implement URL rewriting, but the good news is that starting with ASP.NET 3.5 SP1, URL rewriting became a lot easier thanks to the ASP.NET Routing system.

ASP.NET Routing cleanly decouples URLs from web page file names and can be used to create clean, terse, SEO-friendly URLs. Specifically, ASP.NET Routing allows a developer to define routes, which map a URL pattern – such as “categories/CategoryName/products” – to a class (or web page) that handles the request. Consequently, using ASP.NET Routing you can define a route that sends all requests to www.example.com/categories/<i>CategoryName</i>/products to an existing web page, such as /scripts/ShowProductsInCategory.aspx, which would then read in the CategoryName value and display the appropriate products.

ASP.NET Routing has been covered in previous articles here on 4Guys. For a detailed look at ASP.NET Routing in ASP.NET 4, read URL Routing in ASP.NET 4. For a discussion on the benefits of creating clean, readable, terse, SEO-friendly URLs, refer to “The Case for ASP.NET Routing” section in Using ASP.NET Routing Without ASP.NET MVC.

Use Permanent Redirects When Appropriate
Every HTTP response sent from the server back to the client includes a status code that provides information to the client about the result of the request. For example, if the server receives a request for a non-existent page, such as www.example.com/NoSuchPage.aspx, it returns an HTTP status code of 404.

Every ASP.NET developer is familiar with Response.Redirect(url), which redirects the visitor from the current page they requested to the specified url. The way Response.Redirect works behind the scenes is by sending a 302 HTTP status code along with a Location HTTP header that specifies the URL to which the requested resource has moved.

If that doesn’t quite make sense, let’s look at an example and examine the HTTP traffic sent between the client and server. Imagine an ASP.NET page named RedirectDemo.aspx that has just one line of code in its Page_Load event handler:

When a visitor fires up her browser and enters www.example.com/RedirectDemo.aspx into her browser’s Address bar, the browser makes a request to this URL and the above code executes. TheResponse.Redirect method call above causes ASP.NET to immediately send back the following response:

Note the two highlighted lines in the response. The first line includes the status code, 302. The second line shows the Location HTTP header, which tells the browser where the resource (RedirectDemo.aspx) now resides. The net effect is that the browser, upon receiving this response, will automatically make a request for www.example.com/GoHere.aspx. From the end user’s perspective this happened automatically. She initially typed www.example.com/RedirectDemo.aspx into her browser’s Address bar and then the next thing she knows she’s visiting www.example.com/GoHere.aspx.

It’s important to understand that the 302 status code indicates that the resource being requested has temporarily moved to a new URL. A client – such as a search engine spider – that receives a 302 status will continue to try the original URL for future requests. There is an alternative status code, 301, that should be used if the resource has been moved permanently. ASP.NET 4 offers a new method, Response.RedirectPermanent , which does a redirect using the 301 status code instead of the 302 status code. For example, if we updated the RedirectDemo.aspx page’s code to use the following instead:

Then when a user visited this page the HTTP traffic would look slightly different. Namely, the first line in the response has changed from a status of “302 Found” to “301 Moved Permanently”, as the following output shows:

From the perspective of a visitor arriving from a browser, there are no obvious differences between the 301 and 302 redirect examples. But consider what happens when a search engine spider comes to crawl your site and bumps into a URL like RedirectDemo.aspx. If RedirectDemo.aspx does a 302 redirect (a/k/a, a temporary redirect) to a different URL, such as GoHere.aspx, the spider, when it crawls next week or next month or whenever, will again check RedirectDemo.aspx. However, if RedirectDemo.aspx does a 301 redirect (a/k/a, a permanent redirect), the spider will update its index, replacing its knowledge and information about RedirectDemo.aspx with the new URL, GoHere.aspx.

So what does this all mean for SEO? If you have an old URL that you no longer want search engines to index or users to visit, but rather want them to use a new URL, use a 301 permanent redirect rather than the 302 temporary redirect. Earlier in this article we talked about ASP.NET Routing and how it could be used to allow for URLs like www.example.com/categories/Beverages/products in place of URLs like www.example.com/scripts/ShowProductsInCategory.aspx?CategoryID=342. If you implement ASP.NET Routing on an existing site it would be wise to put 301 permanent redirects on the old URLs that point to the new, SEO-friendly ones. (That is, to have a request for www.example.com/scripts/ShowProductsInCategory.aspx?CategoryID=342 do a Response.RedirectPermanent to the new URL, www.example.com/categories/Beverages/products.) Doing so will update your site’s old URLs in the search engine’s index with the new ones.

Programmatically Setting <meta> Keywords and Description Tags
The <head> element in an HTML document provides metadata about the web page, including the page’s title (via the <title> element), and links to external CSS and JavaScript files, among other information. ASP.NET offers ways to have this metadata assigned automatically or programmatically. For example, you can programmatically set the page’s title using the Page class‘s Title property. (See Dynamically Setting the Page’s Title for more information.) Likewise, when using ASP.NET Themes any stylesheets defined in the theme are automatically included in the page’s <head> section.

When crawling through the pages in a website, a search engine spider will examine the <head> section to determine more information about the page. A page’s keywords and a human-friendly description of the page may be included in the <head> section through the use of <meta> elements. For example, the following <head> element includes a hard-coded title and hard-coded keyword and description <meta> tags:

ASP.NET 4 adds two new properties to the Page class that allow for these two <meta> tags to be specified programmatically:

• MetaKeywords , and
• MetaDescription

You can set these properties from code just like you can the Page.Title property. For example, to generate the above <meta> tags programmatically we’d simply need to add the following lines of code to the ASP.NET page’s code-behind class:

Conclusion
ASP.NET 4 adds a number of facilities targeted at SEO. In this article we discussed three: the ASP.NET Routing system; using the new Response.RedirectPermanent method to generate 301 moved permanently redirects; and using the new Page class properties MetaKeywords and MetaDescription to programmatically add tags to the page’s <head> section.

Happy Programming!

. Oh! many things. Drag a "Text Input" and a "button" on your "Scene" window and align it correctly. Select 'Text Input "and put an instance name (eg TextInput1) from the window' Properties'. Without such as name, is ActionScript does not recognize components. The same for the 'button' instance name (eg SendData) and the 'Parameters' tab "Change Button" label (for example, sending data).

begin Step 3 Here is from the main coding part. Select "level 1" of "Timeline" window and press F9 (keyboard function keys). You will see "Actions" window, where you as you write code. Type or paste the following code plague. / / ** *************************************** *******//< / p> SendData. onPress = function () (
/ / declare and initialize variables var
send_lv: LoadVars = new LoadVars ();
/ / assign value parameters, such as ASP. Net QueryString
send_lv. mydata = TextInput1. text; send
/ / Send data
send_lv. ('default. aspx', ' _self ',' GET ');
) //****************** ********* *********************// The LoadVars object is for the exchange of data between flash – used server. The LoadVars object is in able either to send data to the server for processing, loading data from the server or sending data to the server and waits for a response from the server in one operation. The LoadVars object uses name-value pairs for the transfer data between the client and the server exchange. The LoadVars object is best used in a scenario, the two-way communication between the Flash Movie and server-side logic requires, however, require not to hand over large amounts of data < / p> are

Step 4 or copy the following code to plague the QueryString in Flash read – Action Script is second in ActionScript 2 is not methods, such as ASP . Net, so I wrote the following codes to get QueryString from URL. _url The method returns the URL of the 'AspFlash. swf "file, the aspx page is loaded. //******************************* ********** *******// / / Reading QuaryString
myURL = this. _url;
myPos = myURL. lastIndexOf ("?");< br /> if (myPos> 0) (var
myRawParam = myURL. substring (myPos + length ("mydata = ') + 1, myURL. length);
MyParam = myRawParam. toString (). ("'"). Join ("");< split br /> if (MyParam! TextInput1 = undefined) (
. text = MyParam;)

) //************************** * *********************// Step 5 Save your file File menu. Now we need to make the final SWF train and embed it on aspx page. From the File menu, click "Publish Settings" and you will be a new window with three tabs (see formats, Flash and HTML). In the Formats tab Check Flash and HTML types, so you do the SWF file embedded code in HTML page. Now press the "Publish" move to build the final. If there are no errors, you will have two Flash files (eg "AspFlash. Swf" and "AspFlash. Html ') in the root folder where the source file" AspFlash. fla is.

Step 6 Now start Visual Studio.

Net (VS) and create a new website called "AspFlash" . VS creates a default page that is "standard." aspx ". From solution explorer, double-click "Standard". aspx "file to markup (also known as inline code) as follows. //************************ ***************** *******//

< ; / p>
 

//***** *********************** ********************//

Copy Now "AspFlash. swf "and" AspFlash. html files in your web root directory. I should find my ASPX, SWF files in the same directory. Open 'AspFlash. html "file and copy the following lines, and paste it into the tag 'default. aspx" file. //***************************************** ** *****//

//******* ** ***************************************// After Paste the above code requires little change to 'AspFlash. swf "parameter like this. Look at the line 'AspFlash. swf? mydata =' '', what we have. _url Flash read data mydata by ASP is delivered. Net later. //************************************* **** *******//

width = "550" height = "400" id = "AspFlash" align = "middle" >

"" />

"quality =" high "bgcolor = "# FFFFFF"
width = "550" height = "400" name = "AspFlash" allowfullscreen align = "middle" allowScriptAccess = "sameDomain"
= "false" type = "application / x-shockwave-flash" pluginspage = "http://www. Macromedia. com / go / getflashplayer" />
//************* ************************ ***********// Finally, add two ASP. NET standard controls on the 'Default. aspx page (such as TextBox and Button). Modify button to send text property to "data". The full "standard". aspx is as follows. looks like //************************************ ***** *******//

;

width = "550" height = "400" id = "AspFlash" align = "middle">

"" />

"quality =" high "bgcolor =" # FFFFFF "
width = "550" height = "400" name pluginspage = "AspFlash" allowfullscreen align = "middle" allowScriptAccess = "sameDomain"
= "false" type = "application / x-shockwave-flash" = " http://www. Macromedia. com / go / getflashplayer "/>

//********************************** ************ **// Step 7 In this step, you have to open 'default. cs "file by clicking" View Code "points to" default. "aspx" Solution Explorer of VS. By default, VS has Page_Load event procedure. You must add a text on Page_Load event procedure with the Button1_Click event procedure like this. //***************************************** ** *****// protected void Page_Load (object sender, EventArgs e) (

if (IsPostBack)
if (Request [ "mydata"]! = null)
TextBox1. Text = Request ["mydata"]. ToString ();)

protected void button1_Click (object sender, EventArgs e) (

Response. Redirect ("~ / default. Aspx? Mydata =" + TextBox1. Text);
) / / * ***************** ******************************//< ; / p> Step 8 Well construction the site with F5 (keyboard function key) and enter text in Flash movie and click on "send data" in order to send data to Flash aspx page. You will see aspx 'TextBox' changed your text with Flash 'text input text'. The same way you enter text in aspx "TextBox" and click "send data" in order to send data to aspx Flash movie. Enjoy the communication between technology ASP. Net and Flash. 

are not the only, but to reduce resources and increase the speed and accuracy of automation is required. For the automation, a system program is a basic requirement. Now the question is there are so many technologies and programming languages are available. If you are not a technical person, it's a great question for you that the technology is the best choice. Do not worry, we are here to help you. According to the current scenario, ASP. Net is the best technology to go with.

ASP stands for Active Server Pages. ASP. Net programming very useful to develop dynamic pages. The .NET development is used enormously to the solutions, such as businesses and all other types of sites, Business to Business Portal, Business to develop Customer Portal, CRM systems, e-commerce sites, auction sites and systems, survey and poll sites and systems, etc. ASP.Net programming is very user friendly and easy to deploy .NET programmers . Sun dot net programming is often used to develop all software development application.

Today, every company has its own requirements. If someone wants to develop a website or a system for his or her business she or he has his own requirements. For matching has now become a part of programming. If the system develops in ASP. Net programming technology, adaptation will be very easy. This is also one of the great advantages of the ASP programming . NET .

Another reason to use dot net programming you will find the ASP. NET programmers very easy. India is the country where you can find so many ASP programmers user . It's easy to find a . NET Programmers India . So many companies offer Software Development services and web development in India. To rent one. NET programmers form India is a wise decision. The main reasons are Indian Website Programming industry, with more than 10 years experience in software development. The programmers from India are working with ASP. Net at the time of its launch. So when someone questions after the development of a system Indian programmers will be able to get a solution. Another benefit is the communication skill. Asp Indian programmers communicate with very good communication skills, the ideas will be very easy. The price is always the most important factor. Here you will find a quality and accurate ASP. NET programmers in a very affordable price.

So just go online and automate your business by asp. NET programming of recruitment and ASP. NET programmers from India. If you are not in a position, a good Web Development Company then you will also find a freelance programmer from India can be very easy to find. To create your online presence and automate your business processes with ASP. Net technology .

ASP.NET is extremely useful for creation of web applications, and web pages, and forms an essential part of the web goodies developed for any online content. ASP.NET not only facilitates usage of scripting languages, but also allows you to incorporate usage of extremely efficient next-generation programming languages like Java, VB, C+and the likes of them.

Looking at the historical perspective, in the earlier days, development of well-designed web-pages was a tedious task, and the developers had to put in rigorous efforts due to lack of efficient technology and a complete framework.

As a result, soon after the release of IIS, a powerful technology like ASP.NET was in high demand for developing proficient web-based applications within a short time without putting-in too much of human labor.

As far as the orientation of the technology is concerned, ASP.NET is surely of the server sided technologies, built on a common runtime, which essentially means that it is supported by any Windows server, allowing you to host the attractive yet efficient ASP.NET websites.

There are plenty of benefits of using this resourceful web-empowering ASP.NET technology, and the primary one is obviously the available of the built in resources, a feature-rich toolbox, and many other highly useful facilities to facilitate the developer as well as the end-user. Consequently most of the famous websites running today, such as the eBay, Amazon etc are powered by the ASP.NET, and probably the technology is the key to their proficiency.

Moreover the ASP.NET easily goes hand-in-hand with the ADO.NET and other useful resourceful technologies and as a result, the process of development becomes lot easier. Above all there aren't any compatibility issues, as it is a universally accepted standard today.

The ASP. NET powered applications incorporate processes that can be accurately monitored by the ASP.NET run time, and can be managed efficiently so as to accommodate large number of users at a time.

The fault-tolerance of the applications developed with the ASP.NET technology is also pretty high, and everything is highly portable under such a flexible environment, wherein using HTML in conjunction with the other technologies becomes a cake-walk.

Undeniable you will need to put in good efforts to learn ASP.NET, but once you are done with it, the proficiency of your work would obviously be a lot higher than before. You would always have an edge over the others in the market, as possessing thorough working knowledge of the ASP.NET technology will not only make your present task easier, but also present you with good career-opportunities in due course. It is surely one of the latest upcoming technologies, and with the demand of web-based applications increasing like never before, the future of the ASP.NET technology seems to be  a promising one for sure.

However, they each have their own strengths and limitations and could only be used for what they were programmed to do so. One of these is ASP.NET. The ASP.NET dashboard helps in creating the perfect data visualization the company has in mind for different presentations. As the ASP.NET is supported by the .NET framework created by Microsoft, it enjoys a wide range of environments and Microsoft programs where it can be used for. It also supports several programming languages such as C#, C++ and Perl making for richer and more varied content. Best of all, it offers WYSIWYG, a "preview" of what the end result will look like. Sounds great? Getting the best data visualization software will amount to nothing if the features would be limited and impose restrictions to creativity.

Here are the reasons why everyone should consider getting an ASP.NET dashboard. -Of course, people will prefer to have more interesting content than just having plain text and still pictures on a webpage. ASP.NET dashboards could be utilized in websites to offer more dynamic content. Using the strength of the ASP.NET framework, people could customize the way websites should be presented to the world. This includes informative data that can both be pleasing to look at and informative at the same time. It also allows for more detail to be put into the presented data that ordinary graphs or charts could not achieve. -It allows for exporting to Microsoft program suites such as Visual Studio to create ASP.NET applications. And Microsoft makes up the majority of all leading office applications in the market today. -WYSWIYG allows for a "preview" of the resulting programmed ASP.NET application. However, one must note that there are types of WYSIWYG that need a lot of markup language expertise to undo programming script changes. – ASP.NET, even if it is the successor of the ASP framework, sadly isn't backward compatible with it. This could cause programs if people would wish to run ASP on an ASP.NET dashboard suite.

However, ASP.NET can work together with ASP. With these great characteristics, the ASP.NET dashboard is easily one of the most in-demand applications out in the market today. There are also a lot of available programs that also take advantage of the ASP.NET framework that showcases its versatility. Together with other data visualization software, ASP.NET dashboards make the web a better place to browse in one web page at a time.

Unlike the ASP runtime, ASP.NET uses the Common Language Runtime (CLR) provided by the .NET Framework. Visit Here Now http://dotnet-asansol.blogspot.com

The CLR is the .NET runtime, which manages the execution of code. The CLR allows the objects, which are created in different languages, to interact with each other and hence removes the language barrier. CLR thus makes Web application development more efficient.

In addition to simplifying the designing of Web applications, the .NET CLR offers many advantages. Some of these advantages are listed as follows.

Improved performance:

The ASP.NET code is a compiled CLR code instead of an interpreted code. The CLR provides just-in-time compilation, native optimization, and caching. Here, it is important to note that compilation is a two-stage process in the .NET Framework. First, the code is compiled into

the Microsoft Intermediate Language (MSIL).

Then, at the execution time, the MSIL is compiled into native code. Only the portions of the code that are actually needed will be compiled into native code. This is called Just In Time compilation. These features lead to an overall improved performance of ASP.NET applications.

Flexibility:

The entire .NET class library can be accessed by ASP.NET applications. You can use the language that best applies to the type of functionality you want to implement, because ASP.NET is language independent.

Configuration settings:

The application-level configuration settings are stored in an Extensible Markup Language (XML) format. The XML format is a hierarchical text format, which is easy to read and write. This format makes it easy to apply new settings to applications without the aid of any local administration tools.

Security:

ASP.NET applications are secure and use a set of default authorization and authentication schemes. However, you can modify these schemes according to the security needs of an application.

In addition to this list of advantages, the ASP.NET framework makes it easy to migrate from ASP applications.

Creating an ASP.NET Application

Use a text editor:

In this method, you can write the code in a text editor, such as Notepad, and save the code as an ASPX file. You can save the ASPX file in the directory C:inetpubwwwroot. Then, to display the output of the Web page in Internet Explorer, you simply need to type  in the Address box. If the IIS server is installed on some other machine on the network, replace "localhost" with the name of the server. If you save the file in some other directory, you need to add the file to a virtual directory in the Default WebSite directory on the IIS server. You can also create your own virtual directory and add the file to it.

Use the VS.NET IDE:

In this method, you use the IDE of Visual Studio .NET to create a Web page in a WYSIWYG manner. Also, when you create a Web application, the application is automatically created on a Web server (IIS server). You do not need to create a separate virtual directory on the IIS server.

From the preceding discussion, it is obvious that the development of ASP.NET Web applications is much more convenient and efficient in Visual Studio .NET.

ASP.NET Web pages consist of HTML text and the code. The HTML text and the code can be separated in two different files. You can write the code in Visual Basic or C# . This separate file is called the code behind file. In this section, you'll create simple Web pages by using VB as well as C#.

Before you start creating a Web page, you should be familiar with basic ASP.NET syntax. At the top of the page, you must specify an @ Page directive to define page specific attributes, such as language.

To specify the language as VB for any code output to be rendered on the page.

This line indicates that any code in the block, , on the page is compiled by using VB.

To render the output on your page, you can use the Response.Write() method.

Creating a Visual Basic Web Application

You can create an ASP.NET application using Visual Basic by creating a Visual Basic

Web Application project. To do so, complete the following steps:

1. Select File ® New ® Project. The New Project dialog box appears.

2. Select Visual Basic Projects from the Project Types pane.

3. Select ASP.NET Web Application from the Templates pane. The Name box contains a default name of the application. The Location box contains the name of a Web server where the application will be created. However, you can change the default name and location. In this case, the name of the sample application is SampleVB.

Deploying an ASP.NET Web Application

After creating and testing your ASP.NET Web applications, the next step is deployment.

Deployment is the process of distributing the finished applications (without the source code) to be installed on other computers.

In Visual Studio .NET, the deployment mechanism is the same irrespective of the programming language and tools used to create applications. In this section, you'll deploy the "Hello World" Web application that you created. You can deploy any of the application that was created by using VB or C#. Here, you'll deploy the application created by using VB. To do so, follow these steps:

1. Open the Web application project that you want to deploy. In this case, open the SampleVB project.

2. Select File ® Add Project ® New Project to open the Add New Project dialog box.

3. From the Project Types pane, select Setup and Deployment Projects.

From the Templates pane, select Web Setup Project.

4. Change the default name of the project. In this case, change it to "SampleVBDeploy."

5. Click OK to complete the process. The project is added in the Solution Explorer window.Visit Here Now http://dotnet-asansol.blogspot.com

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 - ASP Studio 2005
This is a powerful project development tool that is integrated with ASP code for editing and debugging without any server. It is also used for editing and debugging ASP source code for dynamic web page.

- SSC to ASP ASP.NET vers 3 + 4
This tool helps Spreadsheet Converter to generate an ASP or ASP Net Page and solve your problem by using Microsoft Excel. In order to generate the ASP Page you need not require any programming and the ASP Page looks and calculates like spreadsheet.

- ASP Spell Check
ASP Spell Check is an international spell checking tool for Microsoft ASP (VBScript) web applications. ASP Spell Check facilitates international spell checking for your ASP applications. It is suitable to use with W3C HTML and XHTML applications and has a high level of accessibility.

- ASP Documentation Tool Premium Edition
The ASP Documentation Tool creates project documentation for ASP 2.0 and 3.0 web applications written in VBScript and JAVAScript. It also provides its users to access and components like SQL Server 2000 databases and Visual Basic 6.0 associated with the Web application can also be included in the reports.

- Nevron Chart for ASP .NET
Nevron Chart for Web Forms is effective and the leading charting tool for ASP .NET applications. The tool includes excellent charting features suitable for presenting scientific, financial and business charts.

- Barcode ASP Component
The Barcode ASP tool can add professional 1D quality barcode PNG format image to web pages running on the IIS server.

- PDF417 Barcode ASP Component
The small footprint PDF417 ASP component is ATL COM product which can add professional quality 2D barcode PNG format image to your web pages running on the IIS server.

- ASP Code Print
ASP Code Print is a tool designed to print the source of web pages written using HTML, VBScript and J Script. The output can be printed and exported to RTF and PDF formats.

While comparing all the net charting tools, we can find ASP net charting tools most effective and convenient. These tools are not only efficient and effective but are also easy to use. Almost all ASP net charting tools provides its users with comprehensive knowledge that can help and guide them in creating the right chart for their daily needs. These charting tools are simple and easy and anyone with basic knowledge of internet can make charts with these genuine tools. Because of its effective uses these ASP net charting tools are gaining lot of popularity and demand in almost every sector.

Finally, don’t be confused with the 0s. You can put breaks in between if this will make it less confusing for you. With regards to the currency and other formats, check the Excel handbook for the corresponding code. There is a reason why you could preview the finish product of the ASP report. You get a clear picture whether you are putting in the right data or not.