How is the using() pattern useful? What is IDisposable? How
does it support deterministic finalization?
- 1 Answers
- 13913 Views
- IntraLogic, I also Faced
- E-Mail Answers
Answer Posted / chirantan
The using statement defines a scope at the end of which an
object will be disposed.
How to use
using (expression | type identifier = initializer) statement
where:
expression
An expression you want to call Dispose on upon exiting the
using statement.
type
The type of identifier.
identifier
The name, or identifier, of the type type. It is possible
to define more than one identifier of type type. Precede
each identifier = initializer with a comma.
initializer
An expression that creates an object.
statement
The embedded statement or statements to executed.
You create an instance in a using statement to ensure that
Dispose is called on the object when the using statement is
exited. A using statement can be exited either when the end
of the using statement is reached or if, for example, an
exception is thrown and control leaves the statement block
before the end of the statement.
The object you instantiate must implement the
System.IDisposable interface.
Example
// cs_using_statement.cs
// compile with /reference:System.Drawing.dll
using System.Drawing;
class a
{
public static void Main()
{
using (Font MyFont = new Font("Arial", 10.0f),
MyFont2 = new Font("Arial", 10.0f))
{
// use MyFont and MyFont2
} // compiler will call Dispose on MyFont and
MyFont2
Font MyFont3 = new Font("Arial", 10.0f);
using (MyFont3)
{
// use MyFont3
} // compiler will call Dispose on MyFont3
}
}
Reference Link: http://msdn2.microsoft.com/en-
us/library/yh598w02(VS.71).aspx
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is interface in oop?
How do you use inheritance in unity?
What is encapsulation selenium?
What is the problem with multiple inheritance?
What is difference between pop and oop?
What do you mean by overloading?
What is protected in oop?
Get me a number puzzle game-program
What is difference between oop and pop?
What is stream in oop?
What is polymorphism explain its types?
what is difference between class template and template class?
What is oops and why we use oops?
What is polymorphism and its types?
What are different types of JVM's? for example we use dalvik jvm for android then what about the remaining operating systems?
