Delegate

A delegate is a type that references a method. Once a delegate is assigned a method, it behaves exactly like that method. The delegate method can be used like any other method, with parameters and a return value

Delegates have the following properties:

• Delegates are similar to C++ function pointers, but are type safe.
• Delegates allow methods to be passed as parameters.
• Delegates can be used to define callback methods.
• Delegates can be chained together; for example, multiple methods can be called on a single event.

Turn On Visual Studio 2005/2008/2010 Line Numbering

 

 Text Editor Settings

Once all of the settings are visible, expand the Text Editor branch of the tree. Here you can see a list of all of the languages for which settings may be modified. We will enable line numbering for C# code editing. Expand the C# node of the tree and select the General section to reveal the settings. To enable source code line numbering, tick the appropriate checkbox. Click OK to accept the setting and the line numbers will appear.

Find number of days in a given month

This user defined functions return the number of days in a given month.

ALTER FUNCTION GetDaysCountInMonth( @Date DATETIME )

RETURNS INT

AS

BEGIN

      DECLARE @count INT

      SET @count = CASE

      WHEN DATEPART(MM,@Date) IN (1, 3, 5, 7, 8, 10, 12) THEN 31

      WHEN DATEPART(MM,@Date) IN (4, 6, 9, 11) THEN 30

      ELSE

            CASE WHEN (DATEPART(YY,@Date) % 4 = 0

            AND

            DATEPART(YY,@Date) % 100 != 0)

            OR

            ((DATEPART(YY,@Date)) % 400 = 0)

            THEN 29

      ELSE 28

END

END

RETURN @count

END

GO

--Result

SELECT dbo.GetDaysCountInMonth(GETDATE()) COUNT

SELECT dbo.GetDaysCountInMonth('2000-02-12') COUNT--Leap year

SELECT dbo.GetDaysCountInMonth('2100-02-12') COUNT

How to Show / Hide a ModalPopupExtender using Javascript

If we have a ModalPopupExtender with the id ‘modPopup_ModalPopupExtender’, and need to display or hide it in javascript, we can easily do this using the $find() function.
Let’s see this in action:

ASPX :

JAVA SCRIPT: