Tanzim Saqib on .NET discovery

Tanzim Saqib is a Senior Developer, who spent half of his life on software and worked for many companies like #1 .NET controls provider Telerik Inc, #1 personalized Web 2.0 start-page like Pageflakes (acquired by LiveUniverse). He developed many projects ranging from banking solutions for Citibank, HSBC, Wamu, Wells Fargo etc. to Paperless Virtual University. He is industry's earliest and leading widget developer and as know as "Widget Master" to his peers.

He is a preacher of Microsoft technologies. While he jams with the latest additions to .NET, in his spare time he blogs at http://weblogs.asp.net/TanzimSaqib, maintains his personal website http://www.TanzimSaqib.com, leads .NET Research group. writes articles.

He is an easy going, fun loving, and passionate technology individual who is open to any kind of business opportunity and professional relationship. He currently lives in Bangladesh, but travels anywhere in the world on professional demand.

Email: me at TanzimSaqib dot com

Tanzim Saqib on .NET discovery Innovate. Create. Share.

Nov 08

CallQueue: Implementing a Sequential Web Service Call Queue for AJAX application

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In AJAX based applications its common that user might end up breaking your AJAX calls by clicking on numerous places in very short interval of time. Let us assume there is a page where there are several of hyperlinks which make WebService calls and do some stuffs on callback. If user clicks on five hyperlinks being impatient or may be just for fun, ......

Posted On Wednesday, November 19, 2008 4:11 PM JavaScript

Nov 08

My eye friendly Visual Studio dark theme

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I am not sure about how you guys feel about your IDE look & feel. First few years it was alright for me. However the more I used Visual Studio, the more I experienced problem with my eyes as well as monotony of the same old white background IDE. So, I made a dark theme of Visual Studio which stopped hurting my eyes again. I also tried to keep the ......

Posted On Tuesday, November 18, 2008 10:09 AM .NET

Nov 08

Client Perspective of Windows Azure Services Platform

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Windows Azure was announced on PDC 2008 (Oct 27) and will hopefully be released mid next year. You probably already know about Azure by this time. If no, I would like to quote some from www.azure.com as intro: The Azure Services Platform is an internet-scale cloud computing and services platform hosted in Microsoft data centers. The Azure Services Platform ......

Posted On Friday, November 14, 2008 5:09 PM .NET , Azure

Cloudship: Membership Provider for the Cloud

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Planning to move to the Azure Cloud, but already tied to the Membership API? I have recently written an article on Windows Azure which guides you to build a complete Membership provider library which can be leveraged by existing application to link to Microsoft’s cloud platform Windows Azure with no friction. Goals of this project were to be able to ......

Posted On Friday, November 14, 2008 11:06 AM .NET , Azure

Nov 08

Building applications for Windows Azure

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Windows Azure is an upcoming operating system for the cloud from Microsoft, announced on October 27 at PDC. Windows Azure provides developers with on-demand compute and storage to host, scale, and manage Web applications on the Internet through Microsoft data centers. Azure goes beyond what other providers, such as Rackspace's Mosso or Amazon's EC2, ......

Posted On Friday, November 7, 2008 3:11 PM .NET , Azure

Nov 08

Fixing DevelopmentStorage's database cannot be found problem on Windows Azure

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This could be a common problem who are not using SQL Express. If you run an Azure application you may find it seeks for SQL Express instance in your machine if you do not have already. You may also find "An error occurred while processing this request." error due to this reason while you try creating tables from your models by StorageClient.TableStorage.... ......

Posted On Saturday, November 1, 2008 9:00 AM .NET , Azure

Oct 08

jQuery intellisense in Visual Studio

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Those who are excited like me about the news of jQuery integration into Visual Studio, started adopting jQuery replacing ASP.NET AJAX Client side API. Microsoft also declared there will be a patch for Visual Studio which will support jQuery as well as intellisene for that. For the enthusiasts who just can't for it, here is the way how we can start developing ......

Posted On Tuesday, October 28, 2008 9:21 AM JavaScript

Mar 08

Simple Form Validation - A Reflection based approach

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Are you tired of placing multiple Validation controls on Form? If you are bored of following scenario like me, keep on reading the post: A simple Email address validation can consist of whether The field is empty Longer than limit Email address format is invalid Already in use Ordinary solution to this problem is placing multiple validation controls ......

Posted On Friday, March 28, 2008 5:02 PM .NET , C#

Mar 08

Use your personal blog with Windows Live Writer

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I'm very glad to tell you that your ".NET Research" personal blog is compatible with Windows Live Writer. You can compose, format, insert photos inside your posts offline and publish when you become online totally from this client without even opening the ".NET Research" site. Let us the steps to do this assuming you have properly installed Windows ......

Posted On Sunday, March 2, 2008 8:03 PM .NET

Mar 08

LINQ to Flickr

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One of my colleagues Mehfuz Hossain developed a wonderful open source project which allows you to query Flickr photos by LINQ, also lets you insert, delete photos directly to/from Flickr. You wonder how to extend LINQ in such an amazing way? It’s easy by writing your own custom LINQ provider, which was not-so-easy until he came up with another handy ......

Posted On Saturday, March 1, 2008 10:08 PM LINQ , .NET , C#

Feb 08

A "transactional" generic DbHelper for LINQ to SQL

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In LINQ to SQL, the data model of a relational database is mapped to an object model expressed in the programming language of the developer. When the application runs, LINQ to SQL translates into SQL the language-integrated queries in the object model and sends them to the database for execution. When the database returns the results, LINQ to SQL translates ......

Posted On Friday, February 29, 2008 8:29 AM LINQ , SQL , .NET , C#

Feb 08

[New Article] 7 ways to do Performance Optimization of an ASP.NET 3.5 Web 2.0 portal

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Web 2.0 applications are widely developed. These applications often work with third party contents, aggregate them, make various use of them and then make something useful and meaningful to the users. For the past few years, developers were also engaged with such endeavors and a lot of their websites have not addressed performance issues, thus resulting ......

Posted On Tuesday, February 5, 2008 11:27 AM

Jan 08

ASP.NET AJAX Best Practices: Avoid using Array.length in a loop

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In one of my earlier posts, I talked about DOM element accessing in a loop but forgot to talk about a very common, yet performance issue in AJAX. We often use code like the following:var items = []; // Suppose a very long array for(var i=0; i<items.length; ++i) ; // Some actionsIt can be a severe performance issue if the array is so large. JavaScript ......

Posted On Thursday, January 10, 2008 6:52 AM JavaScript , Performance

Feb 08

ASP.NET AJAX Best Practices: Careful with DOM element concatenation

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It's a very common bad practice. We often iterate through array, build HTML contents and keep on concatenating into certain DOM element. Every time you execute the block of code under the loop, you create the HTML markups, discover a div, access the innerHTML of a div, and for += operator you again discover the same div, access its innerHTML and concatenate ......

Posted On Tuesday, February 5, 2008 6:51 AM JavaScript , Performance

Jan 08

ASP.NET AJAX Best Practices: Use more "var"

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Less use of "var" can result into wrong calculation as well as mistake in logic control. And also JavaScript interpreter finds it hard to determine the scope of the variable if var is not used. Consider the following simple JavaScript code:function pageLoad() { i = 10; loop(); alert(i); // here, i = 100 } function loop() { for(i=0; i<100; ++i) { ......

Posted On Thursday, January 10, 2008 6:50 AM

Jan 08

ASP.NET AJAX Best Practices: Introduce DOM elements and function caching

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We have seen DOM caching before and function delegation is also a kind of function caching. Take a look at the following snippet: for(var i=0; i<count; ++i) $get('divContent').appendCh... As you can figure out the code is going to be something like: var divContent = $get('divContent'); for(var i=0; i<count; ++i) divContent.appendChild(elem... ......

Posted On Friday, January 11, 2008 6:48 AM JavaScript , Performance

Jan 08

ASP.NET AJAX Best Practices: Introduce function delegates

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Take a look at the following loop. This loop calls a function in each iteration and the function does some stuffs. Can you think of any performance improvement idea?for(var i=0; i<count; ++i) processElement(elements[i]); Well, for sufficiently large array, function delegates may result in significant performance improvement to the loop.var delegate ......

Posted On Saturday, January 12, 2008 6:46 AM JavaScript , Performance

Jan 08

ASP.NET AJAX Best Practices: Avoid String concatenation, use Array instead

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Don't you think the following block of code has written keeping every possible good practice in mind? Any option for performance improvement?function pageLoad() { var stringArray = new Array(); // Suppose there're a lot of strings in the array like: stringArray.push('<div&g... stringArray.push('some content'); stringArray.push('</div&... ......

Posted On Tuesday, January 15, 2008 6:44 AM JavaScript , Performance

Jan 08

Write your own DOM friendly extension methods for HtmlElement in Volta

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I know there are GetById, GetById<> methods in Document object. But, I often miss a method that I feel should be in Volta, which iterates through its child nodes and find an element for me. Let us say, there is a HTML like the following:<div id="divContainer"> <b>Some text</b> <div id="firstDiv"> <i>Some more text</i> ......

Posted On Tuesday, January 29, 2008 6:39 AM Volta

Jan 08

Appearing on Microsoft Volta team blog

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Microsoft Volta team blogged about me and one of my articles: http://labs.live.com/volta/... ......

Posted On Sunday, January 27, 2008 4:00 AM Volta

Jan 08

ASP.NET AJAX Best Practices: Reduce scopes

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It's not pretty common. But, if you ever encounter such code, be sure it's a very bad practice. Introducing more scopes is a performance issue for JavaScript interpreter. It adds a new scope in the ladder. See the following sample scope:function pageLoad() { scope1(); function scope1() { alert('scope1'); scope2(); function scope2() { alert('scope2'); ......

Posted On Sunday, January 6, 2008 7:44 PM JavaScript , Performance

Jan 08

ASP.NET AJAX Best Practices: Problem with switch

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Unlike .NET languages or any other compiler languages, JavaScript interpreter can not optimize switch block. Especially when switch statement is used with different types of data, it's a heavy operation for the browser due to conversion operations occur in consequences, it's an elegant way of decision branching though.

Posted On Thursday, January 10, 2008 7:26 PM JavaScript , Performance

Jan 08

[New Article] ASP.NET AJAX Best Practices

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While we develop AJAX applications, we often carelessly ignore giving up bad practices, which cause effects which are not so significantly visible when the site is not so large in volume. But, it’s often severe performance issue when it is the case for sites that make heavy use of AJAX technologies such as Pageflakes, NetVibes etc. There are so many ......

Posted On Sunday, January 27, 2008 1:21 AM JavaScript , Performance

Jan 08

ASP.NET AJAX Best Practices: Avoid getters, setters

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Make minimum use of setters and getters if possible. Such accessors look like .NET like kind of beautiful properties, but these create new more scopes for JavaScript interpreter to deal with. If applicable, try directly setting/getting the private variable itself rather implementing methods for getters, setters.

Posted On Tuesday, January 8, 2008 2:08 PM

Jan 08

ASP.NET AJAX Best Practices: Avoid using your own method while there is one

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Avoid implementing your own getElementById method that will cause script to DOM marshalling overhead. Each time you traverse the DOM and look for certain HTML element requires the JavaScript interpreter to marshalling script to DOM. It's always better to use getElementById of document object. So, before you write a function, make sure similar functionality ......

Posted On Sunday, January 6, 2008 8:11 AM JavaScript , Performance