Working with strings in VBA can look complicated at first glance, but it’s quite simple once you begin to think of strings as a sequence of numbers representing the position of each character. If your string is 10 characters long and the information you need is represented by characters 4,5,6 &7, then writing your code becomes about isolating those characters. Before I dive into what I did, let me first give a brief explanation of each VBA function I used.
- Mid – you might recognize this formula from Excel if you’re familiar with Excel’s text formulas. The mid formula allows you to return a given length of text from a string from a starting point you specify.
- Instr – if you’re completely new to VBA, this is probably something you’ve never seen. The InStr function returns the numbered position of the first occurrence of a character within a string after a given starting point.
- Example – InStr(1,”Apple:Orange”,”:”) would return the value 6 since the colon is the 6th character.
- Len – this is the simplest function as it returns the total number of characters within a string.
After examining the format of the location column, I could see that the two pieces I wanted were contained inside of parenthesis and separated by a comma. Knowing this, I could use the comma to determine the length of each of my strings I wanted to return.
For latitude, I needed only the first number so I started from the second position (skipping the parenthesis) and determined the length of my string by using the InStr function and subtracting 2 (2 because of the comma and the starting position of 2).
For longitude, I needed the second number. Therefore, I start at the comma using InStr function and adding 1 (adding 1 due to the space that separates. You could also have left this alone and used a Trim function). I determine the length by using the Len function to get the full length of the string and subtract the starting point and one additional character to remove the parenthesis.
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