While loop: In C#, the while loop is a control structure used for iterative execution of a block of code based on a condition. The loop continues executing the code block as long as the condition evaluates to true. Before each iteration, the condition is evaluated, and if it is true, the code block is executed. If the condition becomes false, the loop terminates, and the program continues with the next statement after the loop. While loops are commonly used when the number of iterations is not known in advance or when the loop should continue until a specific condition is met. #whileloop