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C# for Programmers: A Practical Guide

If-Else Statement

Explore how to implement if-else statements in C# to create conditional branches within your programs. Understand syntax, nested ifs, and else-if structures to handle multiple decision paths based on variable values.

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Programming in general often requires a decision or a branch within the code to account for how the code operates under different inputs or conditions.

Within the C# programming language, the simplest and sometimes the most useful way of creating a branch within your program is through an If-Else statement.

If-Else Block

As with most of C#, the if statement has the same syntax as in C, C++, and Java. Thus, it is written in the following form:

C#
if (condition)
{
  // Do something
} 
else
{
  // Do something else
}

Note: The two execution sections are mutually exclusive. Meaning only one of the two sections can execute at a time based on the result of the boolean expression.

The if statement evaluates its condition expression to determine whether to execute the if-body. Optionally, an else clause can immediately follow the if body, providing code to execute when the condition is false.

If-else Example

Let’s ...