NumberCharacter nctemp = new NumberCharacter() this int will control which character is selected from the arrar圜hars Array int iterations = 0 *Note that the index location of the character was equal to the respective exponential power of the base for the place value the character resides in The final Number is the sum of these three numbers. The Number 6 which is in the index location 0 of the string of characters is equal to the value 6 * 10^0 or 6* 1 or 6 The Number 2 which is in the index location 1 of the string of characters is equal to the value 2 * 10^1 or 2* 10 or 20. So the Number 1 which is in the index location 2 of the string of characters is equal to the value 1 * 10^2 or 1 * 100 or 100. X (being the first x starting from the left as numbers are most often read this way) is equal to the Value x * FromBase^indexLocation of x. It essentially works to dynamically construct a numbering system based upon the users selection of the FromBase and the entered in Number. I'm sure it could be improved upon further, but I will do my best to explain the code. I should mention that this code amounted to a mere 200 lines of code. Odd thing is, I did not use the convert class. Using the ideas you presented in your article, I was able to produce some code that converts from any base to any other base. Version 1.0 - 1st Jan 2007 - Initial version.Allow use of custom numbering strings.The source is liberally commented and the associated documentation file This class requires the simpler FF01įrom validating the conversions and testing class behaviour, also shows a number Hexadecimal values are often written as 0xFF01 or Special character denoting number bases are not supported.The largest value that can be converted is Int64.MaxValue as.All converted values are returned as strings.There are a few limitations to bear in mind: String columnNumber = fromExcel.Convert( " AA") Limitations This allows all conversion combinations using Binary, Octal, Decimal andĬopy Code // base 26 (alphabet based) such as Excel column names -> decimalĬonverter fromExcel = Converter.Create( 26, NumberingSchemes.AToZ, NumberBases.Decimal, The simplest method is to use one of the 12 built-in static converters: In your own code, the Converter class can be used in a number of UI demo which you can use for simple conversions Open the solution, set the Demo project as startup and run. .Demo - UI demo (see screenshot above)Ī simple demo is included.There are 3 projects in the attached solution: So this may appear in a later version although I feel the current solution isĮasier to maintain and debug so maybe not Is possible to develop a single algorithm to perform the conversion in one step ![]() To 7, for example, the code converts from base 3 to 10 then 10 to 7. ![]() To convert to base 10 as an interim step. The actual process of converting between bases is fairly trivial and I chose Well as all conventional number bases from 2 to 36 (inclusive) This class is generic enough to include handling the Excel scenario as I solved my Excel requirement using a short function but decided it would beĪ useful exercise to develop a general number conversion class - this is the Posts on various coding sites asking how to perform conversions between I could not find any code to do this anywhere and also came across a number of Recently I needed to calculate the numeric column ordinals for an Excel Under advanced use (such as base 26 to base 5) The library exposes a number of common conversions (such as Binary toĭecimal/base10) for simple use as well as allowing user defined conversions NETįramework conversion libraries which offer a limited set of conversions This library class converts numbers between a variety of number bases - inįact, any number base between 2 (binary) and 36.
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