C#

Rizwan Rathore wrote:

want to know about the RegularExpression class of C#

• IsMatch - Checks if a string, or part of the string specified in the parameters matches the regular expression provided in the constructor.
• Match - Returns a match object which contains the first match that the class found matching the regular expression.
• Matches - Returns a collection of Match objects for each regular expression matched correctly.

// Must include: System.Text.RegularExpressions namespace

string urls = "there is a url included somewhere in this string : http://www.codeproject.com/script/comments/forums.asp?msg=1524600&forumid=1649#xx1524600xx and here is another url http://regexlib.com/Search.aspx?k=uri";
string urlRegex = @"(?<url>(mailto\:|(news|(ht|f)tp(s?))\://){1}\S+)";

Regex regex = new Regex(urlRegex);

foreach (Match m in regex.Matches(urls))
{
    Console.WriteLine(m.Groups["url"].Value);
}
Console.ReadLine();

An unhandled exception of type 'System.ArgumentException' occurred in system.dll

Additional information: parsing "(?<url>(mailto\(news|(ht|f)tp(s?))\://){1}\S+)" - Too many )'s.

at this instruction 

string urlRegex = @"(?<url>(mailto\(news|(ht|f)tp(s?))\://){1}\S+)";

(?<url>(mailto\:|(news|(ht|f)tp(s?))\://){1}\S+)<br />

Rizwan Rathore wrote:

so plzz reply back soon

Rizwan Rathore wrote:

looking forward for help

champ_vicks wrote:

im not able to select n deselect checkbxes in gridview like the mailing list in our mail sites

<br />
DataGridView1.ClearSelection();<br />
DataGridView1.Rows[index].Selected=true;<br />

DataGridView1.ClearSelection();<br />
DataGridView1.Rows[index].Selected=true;<br />
DataGridView1.FirsDisplayedScrollingRowIndex=index;