Module 12 - Windows Forms

Module 12: Windows Forms By SRIRAM . B

Overview 

Statement 

Selection

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Iteration

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Jump

Statements 

Statements are the smallest unit of execution in C# programs. They can be grouped into sequences using curly braces. These are called Compound Statements or Blocks. A compound statement can be used in place of simple statement.

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C# provides variety of statements. Most of the statements are similar to C,C++,Java.

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The statements in C# can be categorized as: 

Selection Statements

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Iteration Statements

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Jump Statements

Selection Statements 

Selection Statements selects one of a number of possible statements for execution based on the value of a controlling expression.

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A selection statement can be:

If Statement

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Switch Statement

If Statement 

The If statement selects a statement for execution based on the value of a Boolean expression.

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Syntax:-

If(condition 1) statement_1 Else statement_2

Nested If 

The If statement may be nested to many levels. This means If statement may contain another If statement.

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Syntax:-

If(condition 1) If(condition 2) statement_1 Else statement_2

Switch Statement  A switch…case statement executes as follows: The switch expression is evaluated first and acts as the control of execution. If the value of the case label matches the switch expression, then the statements following it are executed. A label in a case is a fixed value. If no label matches the value of the switch expression, then the statements following the default label are executed. If there is no match and there is no default label then control is transferred to the end of the switch statement.

switch(expression) { case : Statements case : Statements default: Statements }

Session Ends

Exercise

Relax