Data structures: VB and VBA offer two options: arrays and collections

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Issue:

Technology

 

Written by:

Mellissa S

 

Date added:

April 18, 2012

 

Level:

University

 

Grade:

B

 

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3 / 793

 

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If you knew that, you wouldn't have to look, would you? To search for an item, you must iterate through the array. [FIGURE 1 OMITTED] The second reason is that the array must be dimensioned to a known limit. Once set, it's not easy to add an item after that limit is reached. For example, if you have a list of four people, you can't add a fifth person until you resize the array using ReDim or ReDim Preserve...
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For example, if you have a list of four people, you can't add a fifth person until you resize the array using ReDim or ReDim Preserve. ReDim resizes the array and clears any existing values, while ReDim Preserve resizes and keeps any existing values. Also, the upper limit of the array can't be a dynamic variable...
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