C#: The Ultimate Beginners Guide to Learn C# Programming Step-by-Step by Reed Mark

Author:Reed, Mark [Reed, Mark]
Language: eng
Format: epub
Published: 2021-02-02T00:00:00+00:00

Elements of an Array

In C#, you can directly access an array using its indicative index. Each element in an array can be identified using the array name and the index number corresponding to the element. In this manner, we can treat elements in the same manner that we treat variables. Let’s look at an example below of how to access an element in an array:

myArray[index] = 73;

In the example above, the element is given a value of 73, which is its index position in the array. Each time you try to access an element, the .NET Framework automatically checks the elements to verify the validity of its index. This also helps you tell whether the element is outside the array range. If you try to access an element that is not within the range of the array (an invalid element), you get the following error:

System.IndexOutOfRangeException

This automated check is useful in that it will help you identify errors when coding with arrays. Unfortunately, such checks will always cause a performance lag, given that memory is committed to the check. However, what’s a bit of memory lag compared to the magnitude of errors you would run into when trying to run code that references arrays which are impossible to reach?

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