How Can I Validate Console Input as an Integer in C#?

Validating Console Input as Integers

Many programming scenarios may require the validation of user input to ensure the integrity of your application. One common scenario is validating console input as integers to prevent the potential errors that arise when users enter invalid data.

To achieve this, we can employ the int.TryParse method. This method checks if the input is parsable as an integer and returns a boolean indicating the success or failure of the operation. Here's how to implement it:

string line = Console.ReadLine();
int value;
if (int.TryParse(line, out value))
{
    // This is an integer.
    // Perform minimum number check here.
}
else
{
    // This is not an integer.
    // Handle invalid input here.
}

This approach allows you to handle invalid input separately, preventing it from causing errors or unexpected behavior in your application. It ensures that only valid integer inputs are processed, enhancing the robustness and accuracy of your program.

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