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String is an...........

Posted By :Shashi Ray     Posted Date :September 15, 2008    Points :10   Category :C# 
String is an Object Type. where other data types are reference type in .NET

You can also find related Interview Question to String is an...........  below: 

To create a string literal exclude escape sequence

  
@string. With adding @ at the beginning you can escape literal (More...)

Where do you store connection string?

  
Database connection string can be stored in the web config file.
The connection string can be stored in the WEB.Config file under
element. (More...)

What does connection string consist of?

  
The connection string consists of the following parts:
In general:

Server: Whether local or remote.

Uid: User Id (sa-in sql server)

Password: The required password to be filled-in here

Database: The database name. (More...)

Difference between String.Empty and ""

  
The main difference is lies on memory management.

String.Empty will not create any object of string where as "" (Double Quote or Empty Quote) will create a new object in the memory for the checking the objects. (More...)

How do I convert a numeric type to a string?

  
Call Sytem.Object.ToString(). For example, if the variable count is an integer, write the following:
string text = count.ToString(); (More...)

How you will write a Connection String in web.Config fiel?

  
Ans) Then write below lines of code:

configuration>
connectionStrings>
add name="sqlconnectionstring" connectionString="Data Source=INTHIYAAZ;Initial Catalog=DB;User ID=sa;Password=sa" />
/connectionStrings>
/configuration>
(More...)

What's the advantage of using System.Text.StringBuilder over System.String?

  
StringBuilder is more efficient in the cases, where a lot of manipulation is done to the text. Strings are immutable, so each time it's being operated on, a new instance is created. (More...)

To perform asynchronous data access, what must be added to the connection string?

  
Select Correct Answer.

1. BeginExecute=true
2. MultiThreaded=true
3. MultipleActiveResultSets=true
4. Asynchronous=true

Correct Answer:
4. Asynchronous=true (More...)

Is it possible to update a connection string stored in the Web.config file programatically? If Yes, then how?

  
Yes.

Create a Configuration object. Then, update the connection string using the ConnectionStrings collection. Finally, call Configuration.Save. (More...)

Can you control concatenation of string values with null values?

  
Concatenation of string values with null values results either null value or string value.
We can control that by setting CONCAT_NULL_YIELDS_NULL on or off.
When it is set to ON, the concatenation will result null and when it is set to OFF, it will result the string.
Setting it ON,
SET CONCAT_NULL_YIELDS_NULL on;
print 'testing' + NULL; --results NULL and prints nothing

Setting it OFF,

SET CONCAT_NULL_YIELDS_NULL off;
print 'testing' + NULL; -- results testing and prints the same (More...)

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