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Software ==>	Excel VBA Macros (52 exercises)
Topic ==>	Looping over collections (11 exercises)
Level ==>	Average difficulty
Subject ==>	VBA training

Loop over all of the cells in a block, creating a psychedelic pattern to resemble Elmer the elephant

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

Before you can do this exercise, you'll need to download and unzip this file .

When you open the file above, you should see Elmer the elephant. It's worth noting that this picture has nothing whatsoever to do with this exercise!

Elmer is a playful but responsible elephant - here seen with his duck.

Create a macro to colour (say) A1:J10 at the top left of the worksheet in random colours from 1 to 32.

Use a line which sets the Interior.ColorIndex property of each cell in the range to Int(math.rnd()*32)- and ask your trainer to explain this if it doesn't make sense!

Here is what the worksheet should look like after you run your macro:

Your colours will be different, but the effect will probably be just as unpleasant!

If you get the macro working, try nesting it inside another loop so that the pattern is continually redrawn. Here is the outline of the code to do this:

For Attempts = 1 To 100

'do your Elmer colouring 100 times within a loop

'(but not so many as to induce hallucinations ...)

Next Attempts

Save this workbook as Elmer pattern, before you do serious damage to your eyes!

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.

You can find other training resources for the subject of this exercise here:

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