talk technical

what does ?? two/double question marks mean in C#

aravinda — Thu, 14 Jul 2011 10:37:00 GMT

The operator '??' is called null-coalescing operator, which is used to define a default value for a nullable value types as well as reference types. It is useful when we need to assign a nullable variable a non-nullable variable. If we do not ... read more

OO Design Principles SOLID

aravinda — Tue, 08 Feb 2011 10:17:00 GMT

SOLID are design principles when applied together intends to make it more likely that a programmer will create a system that is easy to maintain and extend over time. S - Single responsibility – A class should have only one reason to... read more

OO Design Principles YAGNI, KISS & DRY

aravinda — Mon, 31 Jan 2011 12:52:00 GMT

YAGNI Principle: "You ain't gonna need it" (acronym: YAGNI) is the principle in extreme programming that programmers should not add functionality until it is necessary. Conversely you should not write a test that drives you to develop code... read more

Service Broker Queue v/s MSMQ

aravinda — Wed, 26 Jan 2011 13:43:00 GMT

MSMQ Service Broker Queue Deployment MSMQ is a Windows component. MSMQ requires deployment of MSMQ on the client (part of OS, but optional install). SSB is a... read more

Advantages of Service Broker queue

aravinda — Mon, 10 Jan 2011 11:36:00 GMT

High Availability. Service Broker is built into the database, so the database high availability and disaster recoverability solution you already have implemented will automatically pick up your messaging solution too. Your cluster or database ... read more

Do Session use Cookies?

aravinda — Sun, 19 Dec 2010 01:55:55 GMT

Cookies and Session State When a user navigates to your site, the server establishes a unique session for that user that lasts for the duration of the user's visit. For each session, ASP.NET maintains session state information where... read more

Asp.net quick tips

aravinda — Mon, 13 Dec 2010 15:25:00 GMT

While testing, you can have emails sent to a folder on your computer instead of an SMTP server. Put this in your web.config: read more

How to avoid scripters trying to hit webserver repeatedly for scraping etc.

aravinda — Fri, 10 Dec 2010 14:23:00 GMT

Log and identify any repeat hitters. Put the IPs into an in-memory LRU counting hash (increment and push to top every time an IP comes back). Add heuristics based on reverse IP info, activity, image/js/cookie downloads. Scale your response by ... read more

Some Tips for enforcing security for Web Services

aravinda — Wed, 08 Dec 2010 14:04:00 GMT

Some Tips for enforcing security for Web Services Have request signatures to include features like incorporating a timestamp of request which will help guard against both accidental and malicious request replaying. Use HTTP Basic... read more

SQL Server tips for Quick DB programing.

aravinda — Sun, 05 Dec 2010 13:15:00 GMT

Use Tools like Red Gate's SQL Prompt,ssmstoolspack( http://www.ssmstoolspack.com/Main.aspx ) and SQL Inform free (online) tool for formatting long procedures. Use Key board shortcuts F5 or Ctrl + E or Alt + x - execute TSQL... read more