Answer / alb.shah

"An exception handler is a piece of code which will be
called when an exception occurs."

.NET Framework provides several classes to work with
exceptions. The keywords try, catch are used to handle
exceptions in .NET. You have to put the code (that can
cause an exception) in a try block. If an exception occurs
at any line of code inside a try block, the control of
execution will be transfered to the code inside the catch
block.
If any statement within the try block raises an exception,
the control of execution will be transfered to the first
line within the catch block. You can write the error
handling code in the catch block, like recording the error
message into a log file, sending an email to the
administrator about the problem occurred, showing an
appropriate error message to the user etc.
You can optionally use a 'finally' block along with the try-
catch. The 'finally' block is guaranteed to be executed
even if there is an exception.
If an exception is not 'handled' in code, the application
will crash and user will see an ugly message. Instead, you
can catch the exception, log the errors and show a friendly
message to the user.

Answer / pavan

Yes. Multiple catch blocks may be put in a try block. See
code example below, to see multiple catch blocks being used
in C#.

class ClassA
{
public static void Main()
{
int y = 0;
try
{
val = 100/y;
Console.WriteLine("Line not executed");
}
catch(DivideByZeroException ex)
{
Console.WriteLine("DivideByZeroException" );
}
catch(Exception ex)
{
Console.WritLine("Some Exception" );
}
finally
{
Console.WriteLine("This Finally Line gets executed always");
}
Console.WriteLine("Result is {0}",val);
}
}

Read more:
http://discuss.itacumens.com/index.php?topic=17579.0#ixzz12vqW9paZ















... · ADO works with connected data. This
means ...
... when you access data, such as viewing and updating
data, it is real-time, with a ...
... being used all the time.

ADO.NET supports disconnected architecture. ...
... you access data, ADO.NET makes a copy of the data using
XML. ...
... make any requested updates. This makes ADO.NET
efficient to use for Web ...
... .

· ADO has one main object that is used to ...
... to create a new set of records. With ADO.NET, you have
various objects that ...
... relational model of your database.

· ADO allows you to create client-side ...
... only, whereas ADO.NET gives you the choice of using ...
... -side or server-side cursors. Whereas ADO allows you to
persist records in XML ...
... , ADO.NET allows you to manipulate data using. ...

Read more:
http://discuss.itacumens.com/index.php?action=search2#ixzz12w06GrN6
























The DataAdapter object
plays the middleman between DataSet and database.
The DataSet represents a rich subset of the entire database,
cached on your machine without a continuous connection to
the database. The DataSet is comrised of DataTable objects
as well as Datarelation objects.

What is the use of placeholder control? Can we see it at runtime?

0 Answers  

---

Explain the difference between the web config and machine config.

0 Answers  

---

ASP.NET Web Service

1 Answers  

---

How do you define authentication in Web.Config?

2 Answers   Accenture, BirlaSoft, IBM,

---

Why do we use datasource in asp.net?

0 Answers  

---

Is asp.net core faster?

0 Answers  

---

public key?

1 Answers   Microsoft,

---

Which keyword you should use for class not to extend? Which keyword to be used for making the class accessible within the assembly only what are the authentication mode of ASP.NET How will you call a JavaScript function using code-behind? How will you define the Session Timeout? What are the methods to validate client-side whether the input is a correct Date format? You want to write a log when ASP.NET application starts. Which is the best place to write that peice of code? What are the page load events and what is there order? What is the difference between abstract class and interface? What are the differences between DataSet and DataReader? What are the two properties other than DataSource, which is required to populate the Drop Down Menu? What is difference between String and StringBuilder Classes? What are differences between Custom control and User control?

1 Answers   Ignis Technologies,

---

Way of updating a table other than stored procedure and hard coded query?

2 Answers  

---

How many types of sessions in asp.net?

0 Answers   MaxSolPro,

---

Please brief not about xsd,xslt & xml?

0 Answers  

---

What is asp.net file?

0 Answers  

---