Click here to Skip to main content
11,706,979 members (50,266 online)
Click here to Skip to main content

Tagged as

How to Toggle String Case in .NET

, 14 Feb 2011 CPOL 1.2K 2
Rate this:
Please Sign up or sign in to vote.
Hi everybody-There is a question posted by Rod Kemp in regards to performance benchmarks used for both algorithms (see Alternate 4). The sample code snippet, pertinent to the "ToggleCaseByJohn" algorithm is as follows: DateTime dt = DateTime.Now; for (Int64 i = 0; i <...
Hi everybody-

There is a question posted by Rod Kemp in regards to performance benchmarks used for both algorithms (see Alternate 4). The sample code snippet, pertinent to the "ToggleCaseByJohn" algorithm is as follows:

DateTime dt = DateTime.Now;
for (Int64 i = 0; i < 100001; i++)
{
    TextBox2.Text = ToggleCaseByJohn(TextBox2.Text);
}
TimeSpan ts = DateTime.Now - dt;
double dur = (double)ts.Milliseconds / 100;
Label3.Text = dur.ToString() + " us";

This technique does not provide the "academic precision' of testing, but rather gives just a first order approximation with adequate accuracy pertinent to this task. Sure thing, more sophisticated benchmarks procedures could be constructed if necessary, but this one could do the job as specified (for example, instead of using the function call the body of the algorithm could be encapsulated within the code snippet shown above). Also, note that the number of iteration is selected as 100001: it should be odd number in order to see the string visually "toggled", because the even number will return the string to the original state.

Best regards,
Alexander Bell

PS. Link to the Test Page for both Algorithms:
http://webinfocentral.com/resources/toggleCaseAlgorithm.aspx[^]

PPS. On a separate note: suggested Alternate 7 is JUST WRONG because suggested "simplified" version:
char.IsUpper(c) ? char.ToLower(c) : c
is not the equivalent of original:
char.IsUpper(c) ? char.ToLower(c) : char.ToUpper(c)
As you can see, that "simplified" Alternate 7 version does not convert Lower Case into Upper; it only converts Upper-to-Lower.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author

DrABELL
President Infosoft International Inc
United States United States
Dr. A. Bell has 20+ years of Software and Electrical Engineering experience: Win/Web veteran, published 300+ articles and authored 37 inventions, credited for 10+ Enterprise level projects (>250k code lines); currently focused on .NET/WPF/C#, Javascript/jQuery, 'Big Data', AI, IoT and Mobile apps. Participated in App Innovation Contest (AIC 2102/2013) with several winning submissions. Sample projects/pubs follow:
  1. WebTV Project: Embedded YouTube Player (Goog #1 YouTube API for ASP.NET)
  2. Edumatter M12: School Math Calculators and Equation Solvers (contest winner)
  3. Engineering Calculator VOLTA-2013 (contest winner)
  4. Online 3 Fractions Calculator (#1 on Goog)
  5. Engineering Calculator VOLTA-814 for Windows
  6. Real-time NY Bus monitoring app
  7. Inflation Calculator
  8. PaydayNY-2015 Payroll Tax Calculator (Win)
  9. Multilingual Geocoder with Interactive Map
  10. Semantic Analyzer (Concordance Calculator)
  11. Prime Factoring Calculator

You may also be interested in...

Comments and Discussions

 
-- There are no messages in this forum --
| Advertise | Privacy | Terms of Use | Mobile
Web01 | 2.8.150819.1 | Last Updated 14 Feb 2011
Article Copyright 2011 by DrABELL
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid