Regex to find a string

[timor.super]

I have a string, for example :

string str = "abCdEfGhiJKl";

to find "def", ignoring the case, i'm doing

if (str.toLower().Contains("def"))
{
// do something
}
How to do this with regex ?

Thanks for your help

[timor.super]

I've founded :

Regex regex = new Regex("[dD][eE][fF]");
if (regex.IsMatch(str))
but is it the best way ?

On 22 août, 10:58, [e-mail] wrote:

I have a string, for example :

string str = "abCdEfGhiJKl";

to find "def", ignoring the case, i'm doing

if (str.toLower().Contains("def"))
{
// do something

}

How to do this with regex ?

Thanks for your help

[KWienhold]

On 22 Aug., 11:57, [e-mail] wrote:

I've founded :

Regex regex = new Regex("[dD][eE][fF]");
if (regex.IsMatch(str))

but is it the best way ?

On 22 août, 10:58, [e-mail] wrote:

I have a string, for example :

string str = "abCdEfGhiJKl";

to find "def", ignoring the case, i'm doing

if (str.toLower().Contains("def"))
{
// do something

}

How to do this with regex ?

Thanks for your help

You could set the "Options"-property of your Regex to IgnoreCase if
you don't want to check for lower and upper case of every character.

hth,
Kevin Wienhold

[Hans Kesting]

ti*********@gmail.com pretended :

I've founded :

Regex regex = new Regex("[dD][eE][fF]");
if (regex.IsMatch(str))
but is it the best way ?

There is also an overload that accepts RegexOptions. Use
RegexOptions.IgnoreCase.

And there is a static variant:
if (Regex.IsMatch(str, "def", RegexOptions.IgnoreCase)) ...

Hans Kesting

[timor.super]

this is working well

Thanks you both

:)

On 22 août, 13:00, Hans Kesting <[e-mail]:

[e-mail] pretended :

I've founded :

Regex regex = new Regex("[dD][eE][fF]");
if (regex.IsMatch(str))

but is it the best way ?

There is also an overload that accepts RegexOptions. Use
RegexOptions.IgnoreCase.

And there is a static variant:
if (Regex.IsMatch(str, "def", RegexOptions.IgnoreCase)) ...

Hans Kesting