how to compare and count the string in two textboxes in asp.net c#

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there is two textboxes. in first textbox you enter a string and another you enter a substring. you have to find total matching substring in first string and count them.

Posted 28-Jun-14 18:12pm

prashbari

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DamithSL · Answer 1 · 2014-06-28T18:21:00

Solution 1

use Regex

C#

int count = Regex.Matches( string1,  string2 ).Count;

Posted 28-Jun-14 18:21pm

DamithSL

Comments

prashbari 29-Jun-14 1:08am

which namespace is used for Regex?

DamithSL 29-Jun-14 3:03am

System.Text.RegularExpressions

prashbari 5-Jul-14 1:18am

This is correct for primary condition ie only for count. But if i have to count with two conditions as-
1)Case(upper case and lower case)
2)With white spaces remove.
Please tell me how to solve this....

DamithSL 5-Jul-14 1:45am

you can use Trim to remove leading and trailing spaces and also convert both input and pattern to lower case or upper case will do case intensive count
Regex.Matches( string1.ToLower(), string2.Trim.ToLower()).Count;

prashbari 5-Jul-14 2:58am

i use this solution but still it's not working. Is there any solution for this?