-
C# Calender Days
How to find out how many calender days are there between two dates in c#.net?
Read Best Answer
Editorial / Best Answer
wyverex- Member Since May-2008 | May 13th, 2008
DateTime t1 = new DateTime(2008, 5, 13);
DateTime t2 = new DateTime(2004, 2, 22);
TimeSpan span = (t1 > t2 ? t1 - t2 : t2 - t1);
Console.WriteLine(span.TotalDays);ngobeseb
- Nov 4th, 2009
Here is the better answer:DateTime fDate = DateTime.Now;int thisDay = fDate.DayOfYear; //if today's date is 31/12/2008, thisDay will be 365 and if today's date is 01/01/2009, thisDay will be 1.Therefore, you can use DayOfYear propery to get the day number in a year.
dhanu_mitra
- Jan 1st, 2009
public void DateDiff(){ DateTime startDate = DateTime.Parse("11/12/2008"); DateTime endDate = DateTime.Parse("11/12/2009"); &n...
-
Unsafe Keyword
Why we use pointer in C#.NET with Unsafe keyword?
phanish
- Jul 16th, 2010
In C# the value can be directly referenced to a variable, so there is no need of pointer. Use of pointer sometime crashes the application. But C# supports pointer, that means we can use pointer in C#....
kvvsmbalaji
- Jul 16th, 2010
As we know, the CLR is responsible for managing the execution of code compiled for the .NET platform. The code that satisfies the CLR at runtime in order to execute is reffered as Managed Code.Un...
-
YIELD Keyword
What is the purpose of YIELD Keyword in C#?
diejmon
- Aug 18th, 2010
The yield keyword is used in an iterator block to provide a value to the enumerator object or to signal the end of the iteration. When used the expression is evaluated and returned as a value to the e...
phanish
- Jul 17th, 2010
Used in an iterator block to provide a value to the enumerator object or to signal the end of iteration. It takes one of the following forms: yield return ;yield break;
-
Singleton Class
Give an example of inbuilt Singleton Class in .NET.
BhavinRudani
- Dec 23rd, 2010
The Singleton is class which only allows a single instance of itself to be created and usually gives access to the instace.Benifits:Instance ControlSingleton class prevents other object from instantia...
sushil_gupta
- Oct 8th, 2010
In Singleton class we can create only one object throughout the lifetime of class.Singleton is a design pattern and based on that pattern this class is implemented.
-
Late and early binding
which one best in late binding and early binding? What is the difference between them ?
Sivavt
- Mar 26th, 2012
Early binding Or Compile time Or static binding: Assigning of object to type reference happens at compile time.
Late binding Or Run time Or Dynamic binding: Assigning of object to type reference happens at run time.
Early binding is efficient while late binding provides flexibility to programmers.Devender Thadkapalli
- Nov 28th, 2011
Early binding is best. Because any errors can be resolved at compile time. Late binding is at Run Time
-
Properties in C#
What are properties in C#? What are the advantages of using Properties ?
Riki
- Sep 1st, 2015
Properties are a level of abstraction to access private fields of a class and they are declare as public. Field are always private member of a class.
-
Can we write Dotnet Console program in Unix
Can we write Dotnet Console program in Unix ? If yes Give one example.
TheDentist
- Apr 23rd, 2013
If you write in Java then the application will run in a JRE on UNIX but you have to compile the application on Windows first. Then deploy it to UNIX.
-
Advantages of static class over class ?
When to use static class and when to use normal class ?
Sunil
- Aug 31st, 2014
WHEN SHOULD WE DO THIS: When we have a normal class and its methods being used very frequently in a given app, then it would speed up things if we made this class a static class with static methods. T...
Knoxille_25
- Aug 19th, 2014
A static class can make your implementation simpler and faster because you do not have to create an object in order to invoke its methods. It is useful to organize the methods inside the class in a meaningful way, such as the methods of the Math class in the System namespace.
-
Why does DllImport not work for me?
All methods marked with the DllImport attribute must be marked as public static extern.
Robertxie
- Jan 6th, 2008
It works perfectly. You can find the dialogue window by using "ALT+Tab" keyRobert
jbanx
- Apr 17th, 2007
Following is the example to use it properly This is from msdn for more visithttp://msdn2.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.aspxusing System;using System.Run...
-
Is there a way to force garbage collection?
Yes. Set all references to null and then call System.GC.Collect().If you need to have some objects destructed, and System.GC.Collect() doesn't seem to be doing it for you, you can force finalizers to be run by setting all the references to the object to null and then calling System.GC.RunFinalizers().
mrodenhauser
- Jul 29th, 2010
As others have mentioned forcing garbage collection is ill advised and really should not be necessary with proper implementations of IDisposable. One could probably argue that in .net ...
Sivakrishna
- Nov 12th, 2007
GC.Collect();It is recomended that you should not forcefully call the GC. GC does it in the optimal way, since it knows the inner details like which object actually created inner objects.But some case...
-
I was trying to use an "out int" parameter in one of my functions. How should I declare the variable that I am passing to it?
You should declare the variable as an int, but when you pass it in you must specify it as 'out', like the following: int i;foo(out i);where foo is declared as follows: [return-type] foo(out int o) { }
-
Does C# support properties of array types?
Yes. Here's a simple example: using System;class Class1 {private string[] MyField;public string[] MyProperty {get { return MyField; }set { MyField = value; }}}class MainClass{public static int Main(string[] args) {Class1 c = new Class1();string[] arr = new string[] {"apple", "banana;c.MyProperty = arr;Console.WriteLine(c.MyProperty[0]); // "apple"return 0;}}
-
Can you allow class to be inherited, but prevent the method from being over-ridden?
Yes, just leave the class public and make the method sealed.
-
What is a delegate?
A delegate object encapsulates a reference to a method. In C++ they were referred to as function pointers.
skurt000
- Jul 11th, 2008
A typical example of delegate usage can be found in event handling. For example, when the event is raised that the selected index of a dropdown list changed, we want method "ddlFoo_SelectedIndexChanged(object sender, EventArgs e)" to be called.
learner22
- Jun 20th, 2008
A delegate in C# is simlilar to function pointer in C or C++. Using a delegate allows the programmer to encapsulate a reference to a method inside a delegate object.The delegate object can then be pas...
-
What is CLS?
Skill/Topic: BeginnerA) Common Language SpecificationB) Common Library SystemC) Csharp Language SpecificationD) Code Location Specification
moruan
- Feb 8th, 2009
CLS is common language specification, simply a specification that defines the rules to support language integration in such a way that programs written in any language.
Bhaskar Char T.N
- Jan 19th, 2007
CLS: (Common Language Specification) This allows very tight interrupt between different .net languages.E.g.:- Allowing C# class to inherit in vb class.
-
What is CLR?
Skill/Topic: BeginnerA) Common Library ReorganizationB) Csharp Language RespecificationC) Csharp Library RosterD) Common Language Runtime
vinay1234
- Jun 30th, 2008
CLR is Common Language Runtime which compile the code two time, manage many features?like garbage collection.
-
A local C# variable declared in the for loop is in scope in
Skill/Topic: BeginnerA) Body of the for loopB) The method which includes the for loopC) Class
dsouzajohnson
- Mar 29th, 2006
A is the correct answer...Gets variable does not exist error message, if we try to access it outside the for loop --Hey guys.. I know you all have done a lot for this forum and have good expertise..This is my first post..please bear with me in case of any inaccuracy.Thanks-Johnson.
-
What is true about readonly variable in C# code?
Skill/Topic: BeginnerA) It's the same as a constantB) It's value can be assigned only onceC) You can never assign a value to it
JimmyJamJo
- May 17th, 2008
I'd argue "B" isn't quite right - you CAN assign to a readonly variable more than once, it's just that you can't assign to it after the constructor has been executed. Conside...
-
You can inherit multiple interfaces in C#
Skill/Topic: IntermediateA) TrueB) FalseExplanation: A class can inherit multiple interfaces
chandrasoma
- Nov 20th, 2006
Question should be re-written as " Can C# classes implement multiple interfaces?". I think you implement interfaces rather than inherit them.
-
To change the value of a variable while debugging , the following window is used
Skill/Topic: IntermediateA) DebugB) WatchC) Immediate
C# Interview Questions
Read Best Answer
Ans