custom validation in asp.net
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i was searching for the email validation (validation control).I found the following line for the custom validation. could u please explain the meaning of the following line? \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
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i was searching for the email validation (validation control).I found the following line for the custom validation. could u please explain the meaning of the following line? \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
function validation() if(document.Form1.txtadvmail.value=="") { alert("Please fill the mailid"); document.Form1.txtadvmail.focus(); return false; } if (checkMailId(document.Form1.txtadvmail.value)==false) { document.Form1.txtadvmail.value="" document.Form1.txtadvmail.focus(); return false; } function checkMailId(id) { var arr = new Array('.com','.net','.org','.biz','.coop','.info','.museum','.name','.pro' ,'.edu','.gov','.int','.mil','.ac','.ad','.ae','.af','.ag','.ai','.al', '.am','.an','.ao','.aq','.ar','.as','.at','.au','.aw','.az','.ba','.bb', '.bd','.be','.bf','.bg','.bh','.bi','.bj','.bm','.bn','.bo','.br','.bs', '.bt','.bv','.bw','.by','.bz','.ca','.cc','.cd','.cf','.cg','.ch','.ci', '.ck','.cl','.cm','.cn','.co','.cr','.cu','.cv','.cx','.cy','.cz','.de', '.dj','.dk','.dm','.do','.dz','.ec','.ee','.eg','.eh','.er','.es','.et', '.fi','.fj','.fk','.fm','.fo','.fr','.ga','.gd','.ge','.gf','.gg','.gh', '.gi','.gl','.gm','.gn','.gp','.gq','.gr','.gs','.gt','.gu','.gv','.gy', '.hk','.hm','.hn','.hr','.ht','.hu','.id','.ie','.il','.im','.in','.io', '.iq','.ir','.is','.it','.je','.jm','.jo','.jp','.ke','.kg','.kh','.ki', '.km','.kn','.kp','.kr','.kw','.ky','.kz','.la','.lb','.lc','.li','.lk', '.lr','.ls','.lt','.lu','.lv','.ly','.ma','.mc','.md','.mg','.mh','.mk', '.ml','.mm','.mn','.mo','.mp','.mq','.mr','.ms','.mt','.mu','.mv','.mw', '.mx','.my','.mz','.na','.nc','.ne','.nf','.ng','.ni','.nl','.no','.np', '.nr','.nu','.nz','.om','.pa','.pe','.pf','.pg','.ph','.pk','.pl','.pm', '.pn','.pr','.ps','.pt','.pw','.py','.qa','.re','.ro','.rw','.ru','.sa', '.sb','.sc','.sd','.se','.sg','.sh','.si','.sj','.sk','.sl','.sm','.sn', '.so','.sr','.st','.sv','.sy','.sz','.tc','.td','.tf','.tg','.th','.tj', '.tk','.tm','.tn','.to','.tp','.tr','.tt','.tv','.tw','.tz','.ua','.ug', '.uk','.um','.us','.uy','.uz','.va','.vc','.ve','.vg','.vi','.vn','.vu', '.ws','.wf','.ye','.yt','.yu','.za','.zm','.zw'); var mai = id; var val = true; var dot = mai.lastIndexOf("."); var ext = mai.substring(dot,mai.length); var at = mai.indexOf("@"); var dom = dot - at; var sp = mai.indexOf(" "); if(dom >= 4 && at >1 && sp == -1) { for(var i=0; i<arr.length; i++) { if(ext == arr[i]) { val = true; break; </x-turndown>
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i was searching for the email validation (validation control).I found the following line for the custom validation. could u please explain the meaning of the following line? \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
w stands for an alphabet like 'a','b' etc!! \w means it can be any no of alphabets so it confirms that the email id starts with an alphabet then within it ([-+.] means it can have any of these characters in between \w at the end ensures that the email id ends with a alphabet as well then a compulsory @ and so on!!!!
I was born dumb!! :laugh:Programming made me laugh:laugh:!!! --sid--
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i was searching for the email validation (validation control).I found the following line for the custom validation. could u please explain the meaning of the following line? \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
Are you familiar with regular expressions ?
Sonia Gupta wrote:
\w+
This line matches for any characters, numbers and alphabets
Sonia Gupta wrote:
([-+.]\w+)*@
This is another regular expression (nested). This matches a single character that is a word charcter and force to match "@".
Sonia Gupta wrote:
[-.]
Matches a single character present in the list. I think from this information you can iterate the remaining. Try for it.
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function validation() if(document.Form1.txtadvmail.value=="") { alert("Please fill the mailid"); document.Form1.txtadvmail.focus(); return false; } if (checkMailId(document.Form1.txtadvmail.value)==false) { document.Form1.txtadvmail.value="" document.Form1.txtadvmail.focus(); return false; } function checkMailId(id) { var arr = new Array('.com','.net','.org','.biz','.coop','.info','.museum','.name','.pro' ,'.edu','.gov','.int','.mil','.ac','.ad','.ae','.af','.ag','.ai','.al', '.am','.an','.ao','.aq','.ar','.as','.at','.au','.aw','.az','.ba','.bb', '.bd','.be','.bf','.bg','.bh','.bi','.bj','.bm','.bn','.bo','.br','.bs', '.bt','.bv','.bw','.by','.bz','.ca','.cc','.cd','.cf','.cg','.ch','.ci', '.ck','.cl','.cm','.cn','.co','.cr','.cu','.cv','.cx','.cy','.cz','.de', '.dj','.dk','.dm','.do','.dz','.ec','.ee','.eg','.eh','.er','.es','.et', '.fi','.fj','.fk','.fm','.fo','.fr','.ga','.gd','.ge','.gf','.gg','.gh', '.gi','.gl','.gm','.gn','.gp','.gq','.gr','.gs','.gt','.gu','.gv','.gy', '.hk','.hm','.hn','.hr','.ht','.hu','.id','.ie','.il','.im','.in','.io', '.iq','.ir','.is','.it','.je','.jm','.jo','.jp','.ke','.kg','.kh','.ki', '.km','.kn','.kp','.kr','.kw','.ky','.kz','.la','.lb','.lc','.li','.lk', '.lr','.ls','.lt','.lu','.lv','.ly','.ma','.mc','.md','.mg','.mh','.mk', '.ml','.mm','.mn','.mo','.mp','.mq','.mr','.ms','.mt','.mu','.mv','.mw', '.mx','.my','.mz','.na','.nc','.ne','.nf','.ng','.ni','.nl','.no','.np', '.nr','.nu','.nz','.om','.pa','.pe','.pf','.pg','.ph','.pk','.pl','.pm', '.pn','.pr','.ps','.pt','.pw','.py','.qa','.re','.ro','.rw','.ru','.sa', '.sb','.sc','.sd','.se','.sg','.sh','.si','.sj','.sk','.sl','.sm','.sn', '.so','.sr','.st','.sv','.sy','.sz','.tc','.td','.tf','.tg','.th','.tj', '.tk','.tm','.tn','.to','.tp','.tr','.tt','.tv','.tw','.tz','.ua','.ug', '.uk','.um','.us','.uy','.uz','.va','.vc','.ve','.vg','.vi','.vn','.vu', '.ws','.wf','.ye','.yt','.yu','.za','.zm','.zw'); var mai = id; var val = true; var dot = mai.lastIndexOf("."); var ext = mai.substring(dot,mai.length); var at = mai.indexOf("@"); var dom = dot - at; var sp = mai.indexOf(" "); if(dom >= 4 && at >1 && sp == -1) { for(var i=0; i<arr.length; i++) { if(ext == arr[i]) { val = true; break; </x-turndown>
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Are you familiar with regular expressions ?
Sonia Gupta wrote:
\w+
This line matches for any characters, numbers and alphabets
Sonia Gupta wrote:
([-+.]\w+)*@
This is another regular expression (nested). This matches a single character that is a word charcter and force to match "@".
Sonia Gupta wrote:
[-.]
Matches a single character present in the list. I think from this information you can iterate the remaining. Try for it.
OK thanks Navaneeth......:)
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
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w stands for an alphabet like 'a','b' etc!! \w means it can be any no of alphabets so it confirms that the email id starts with an alphabet then within it ([-+.] means it can have any of these characters in between \w at the end ensures that the email id ends with a alphabet as well then a compulsory @ and so on!!!!
I was born dumb!! :laugh:Programming made me laugh:laugh:!!! --sid--
thanks sid.....:)
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
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thanks sid.....:)
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
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function validation() if(document.Form1.txtadvmail.value=="") { alert("Please fill the mailid"); document.Form1.txtadvmail.focus(); return false; } if (checkMailId(document.Form1.txtadvmail.value)==false) { document.Form1.txtadvmail.value="" document.Form1.txtadvmail.focus(); return false; } function checkMailId(id) { var arr = new Array('.com','.net','.org','.biz','.coop','.info','.museum','.name','.pro' ,'.edu','.gov','.int','.mil','.ac','.ad','.ae','.af','.ag','.ai','.al', '.am','.an','.ao','.aq','.ar','.as','.at','.au','.aw','.az','.ba','.bb', '.bd','.be','.bf','.bg','.bh','.bi','.bj','.bm','.bn','.bo','.br','.bs', '.bt','.bv','.bw','.by','.bz','.ca','.cc','.cd','.cf','.cg','.ch','.ci', '.ck','.cl','.cm','.cn','.co','.cr','.cu','.cv','.cx','.cy','.cz','.de', '.dj','.dk','.dm','.do','.dz','.ec','.ee','.eg','.eh','.er','.es','.et', '.fi','.fj','.fk','.fm','.fo','.fr','.ga','.gd','.ge','.gf','.gg','.gh', '.gi','.gl','.gm','.gn','.gp','.gq','.gr','.gs','.gt','.gu','.gv','.gy', '.hk','.hm','.hn','.hr','.ht','.hu','.id','.ie','.il','.im','.in','.io', '.iq','.ir','.is','.it','.je','.jm','.jo','.jp','.ke','.kg','.kh','.ki', '.km','.kn','.kp','.kr','.kw','.ky','.kz','.la','.lb','.lc','.li','.lk', '.lr','.ls','.lt','.lu','.lv','.ly','.ma','.mc','.md','.mg','.mh','.mk', '.ml','.mm','.mn','.mo','.mp','.mq','.mr','.ms','.mt','.mu','.mv','.mw', '.mx','.my','.mz','.na','.nc','.ne','.nf','.ng','.ni','.nl','.no','.np', '.nr','.nu','.nz','.om','.pa','.pe','.pf','.pg','.ph','.pk','.pl','.pm', '.pn','.pr','.ps','.pt','.pw','.py','.qa','.re','.ro','.rw','.ru','.sa', '.sb','.sc','.sd','.se','.sg','.sh','.si','.sj','.sk','.sl','.sm','.sn', '.so','.sr','.st','.sv','.sy','.sz','.tc','.td','.tf','.tg','.th','.tj', '.tk','.tm','.tn','.to','.tp','.tr','.tt','.tv','.tw','.tz','.ua','.ug', '.uk','.um','.us','.uy','.uz','.va','.vc','.ve','.vg','.vi','.vn','.vu', '.ws','.wf','.ye','.yt','.yu','.za','.zm','.zw'); var mai = id; var val = true; var dot = mai.lastIndexOf("."); var ext = mai.substring(dot,mai.length); var at = mai.indexOf("@"); var dom = dot - at; var sp = mai.indexOf(" "); if(dom >= 4 && at >1 && sp == -1) { for(var i=0; i<arr.length; i++) { if(ext == arr[i]) { val = true; break; </x-turndown>
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i was searching for the email validation (validation control).I found the following line for the custom validation. could u please explain the meaning of the following line? \w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
Sonia Gupta Soniagupta1@yahoo.co.in Yahoo messengerId-soniagupta1 Love is Friendship and Friendship is Love....
That's a regular expression. It's a syntax for describing patterns within strings, and can be quite powerful. It takes some time and research to understand them, but I find it well worth it. That particular one is a bit strange though... I'm not sure if I fully get what it's going for. I'd suggest something along the lines of: ^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$