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What is the difference between OrderBy() and Sort() method over IList

Posted By :Jean Paul     Posted Date :May 21, 2011    Points :40   Category :LINQ 
OrderBy() sorts and gives the view IEnumerable(). But underlying list is sorted or not changed.

Sort() modifies the underlying list.

You can also find related Interview Question to What is the difference between OrderBy() and Sort() method over IList  below: 

What is the difference between Session.Clear() and Session.RemoveAll() method?

  
Well, actually there is no difference. Session.RemoveAll() methods internally makes a call to Clear() method only.

Thanks. (More...)

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Transfer: Terminates execution of the current page and starts execution of provided URL.
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Main Difference between Method and function?

  
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What is the difference between Convert.toString and .toString()
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Just to give an understanding of what the above question means see the below code :-

int val = 0;
MessageBox.Show(val.ToString());
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The basic difference between them is "Convert" function handles NULLS while "val.ToString()"
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It will throw a NULL reference exception error. So as good coding practice using "Convert" is always safe. (More...)

What is the difference between Convert.ToString() and .ToString() method.

  
Have a look at the following program and its output

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ExampleOfString
{
class Program
{
static void Main(string[] args)
{
String UserName = null ;
try
{
//Below statement WILL THROW an exception as .ToString() does not handles null values
String strUserId = UserName.ToString();
}
catch (NullReferenceException ex)
{
Console.WriteLine("Error:{0}", ex.Message);
}

try
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//Below statement WILL NOT THROW an exception as convert.tostring handles implicitly
String strUserId = Convert.ToString(UserName);
Console.WriteLine("UserName:{0}", strUserId);
}
catch (NullReferenceException ex)
{
Console.WriteLine("Error:{0}", ex.Message);
}
}
}
}

/*
Below is the output of the console application

Error:Object reference not set to an instance of an object.
UserName:
Press any key to continue . . .
*/ (More...)

Is the Where() method residing in List class or IList class?

  
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What is the difference between method activity and event activity in WorkFlow ?


  

A method activity is one that performs an action, such as creating or updating a task. An event activity is one that runs in response to an action occurring (More...)

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Difference Between Delete and Truncate

  
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. Truncate table removes all rows from a table, but the table structure and its columns, constraints, indexes etc., remains as it is.

. In truncate table the counter used by an identity column for new rows is reset to the seed for the column.

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metadata - Information that describes every element managed by the common language runtime: an assembly, loadable file, type, method, and so on. This can include information required for debugging and garbage collection, as well as security attributes, marshaling data, extended class and member definitions, version binding, and other information required by the runtime. (More...)

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