![]() ![]() While one can forego using the collection classes and rely on containers or temp tables, the collection classes are arguably a better choice in many cases. Provide the string key to the value method Values stored by using a unique string as a key The values for each key must also be the same data type. Values stored sequentially with ability to add values at the beginning or end of the list The table below summarizes these differences. Each class has different restrictions on the kinds of data that can be stored and how that data is accessed. The classes have a consistent API for creation, addition of elements, and access of elements. Note that these classes are not abstract tools but used throughout base DAX code, especially areas of complex functionality including inventory closing, indirect cost calculation, production variance, master planning, and BOM calculation. The Microsoft Dynamics AX collection classes provide simple data structure implementation to allow developers to store and access simple types such as strings and integers, but also more complex types such as records and objects. ![]()
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