Here Mudassar Ahmed Khan has explained with an example, how to add item at Index 0 (First position) in ASP.Net DropDownList that already contains items (data) using C# and VB.Net.

Here Mudassar Ahmed Khan has explained with an example, how to add default (insert) Blank (Empty) item to DataBound DropDownList populated from Database in ASP.Net Code Behind using C# and VB.Net.
Generally we want to have a default selected item such as Please Select with Blank (Empty) value. This article will explain how to add such Blank (Empty) item in Code Behind when DropDownList is populated from database.

Here Mudassar Ahmed Khan explained with an example, how to use Comma Separated (Delimited) string values with IN and WHERE clause in SQL Server.
This article is applicable to all SQL Server versions i.e. 2005, 2008, 2012 and 2014.

Here Mudassar Ahmed Khan has explained with an example, how to enable 32 bit Applications in Application Pool of IIS Server versions IIS 7 and IIS 8.
In 64 Bit windows server operating systems, by default 64 Bit .Net Framework installed and hence when you try to deploy a 32 Bit application (website) on IIS Server it results in an error.