converting string to lower case

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here is my function
if there is any upper case in a string convert it to lower case

how i have to do

private string RemoveNon_Alphabets_id(string str)
{
StringBuilder sb = new StringBuilder();

for (int i = 0; i < str.Length; i++)
{

if (((char.IsLetter(str[i])) || str[i] == '-'))
{

sb.Append(str[i]);

}

}

return sb.ToString(); ;
}

now the resultant string i want to convert to lower case
where and how to do

Posted 26-Jul-11 1:14am

kami124

Updated 26-Jul-11 1:24am

Ramalinga Koushik

v3

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3 solutions

Solution 2

like this:

sb.ToString().ToLower();

http://msdn.microsoft.com/en-us/library/system.string.tolower(v=vs.71).aspx[^]

Posted 26-Jul-11 1:17am

Manas Bhardwaj

Solution 4

Hi,
use this

C#

private string RemoveNon_Alphabets_id(string str)
            {
                  StringBuilder sb = new StringBuilder();

                  for (int i = 0; i &lt; str.Length; i++)
                  {

                        if (((char.IsLetter(str[i])) || str[i] == '-'))
                        {

                              sb.Append(str[i]);

                        }

                  }

                  return sb.ToString().ToLower();
            }

Posted 26-Jul-11 1:35am

Tajuddin_HYD

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Shameel · Accepted Answer · 2011-07-26T01:15:00

Solution 1

C#

return sb.ToString().ToLower();

Posted 26-Jul-11 1:15am

Shameel

Comments

kami124 26-Jul-11 7:21am

OK thanks!
sometime very little problem dosent come to mind