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Microsoft Dynamics NAV Development Quick Start Guide

You're reading from   Microsoft Dynamics NAV Development Quick Start Guide Get up and running with Microsoft Dynamics NAV

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Product type Paperback
Published in Dec 2018
Publisher Packt
ISBN-13 9781789612769
Length 210 pages
Edition 1st Edition
Languages
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Author (1):
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Alexander Drogin Alexander Drogin
Author Profile Icon Alexander Drogin
Alexander Drogin
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Table of Contents (10) Chapters Close

Preface 1. Getting Started with the NAV Development Environment FREE CHAPTER 2. Codeunits - Structuring C/AL Code 3. Tables - Creating Data Structure 4. Designing User Interface 5. Exchanging Data with XML Ports 6. NAV Event Model 7. Presenting Data in Reports 8. Debugging Your Code 9. Other Books You May Enjoy

Passing variables by value and by reference

To simplify the example, we will skip the sorting of the input array, but instead generate a random array whose elements are already sorted in ascending order. The GenerateRandomSortedArray function will do this: it simply fills an array with random values, each value greater than the previous one. A generated array is the result that must be returned from the function. But the function return value can only be a scalar; it is not possible to return an array directly as a function value. A ByVar parameter can help us to work around this problem. If we pass an array variable to GenerateRandomSortedArray by reference, any changes made inside the function will be visible to the calling code. Let's see how this works.

Inside the function, declare an InputArray parameter of type Integer and set the checkmark in the Var field. To complete...

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