CSharp System String Contain

Description

Click the following links for the tutorial for System and String Contain.

1. Determines whether the specified text is numeric. I a string is numeric if it contains only numbers. This routine does not check for commas, decimal points etc.
2. Returns the part of the string after the last occurrence of the given string, or null when the original text does not contain the text to find.
3. Returns the part of the string after the first occurrence of the given string, or null when the original text does not contain the text to find.
4. Returns the part of the string before the first occurrence of the given string, or null when the original text does not contain the text to find.
5. Returns the part of the string before the last occurrence of the given string, or null when the original text does not contain the text to find.
6. Returns the part of the string starting at the first opening bracket and ending with the matching closing bracket, or null when the original text does not contain brackets or is unbalanced.
7. String extension method which checks whether the input string contains a true-like value.
8. Tests to see if a string is contains only digits based on Char.IsDigit function.



9. Tests to see if a string contains only letters.
10. Tests to see if a string contains only letters or digits.
11. Tests to see if a string contains only numbers based on Char.Is Number function.
12. Contains Words In Sequence
13. Contains Illegal Characters
14. Contains Roman Numerals
15. Checks to see if a string contains vowels
16. Checks if a string contains only letters



17. Whether a string is a compound word, ie if it contains a '-' inside the word. Ex: -test -> not compound six-figure -> compound
18. Determines whether [contains] [the specified target].