C# Discussion Boards - CodeProject

Re: In a service application, where do I add the functions that it should perform?

musefan26-Jan-09 2:57

musefan

26-Jan-09 2:57

well i suppose it depends on when you want to call the function

Re: In a service application, where do I add the functions that it should perform?

#realJSOP26-Jan-09 4:57

#realJSOP

26-Jan-09 4:57

In a thread that is instantiated from the Start() method.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

validation

abu rakan26-Jan-09 0:44

abu rakan

26-Jan-09 0:44

hi men
how can I make validation to accept specific input
such as in my text box Only email is valid input
aaa..@dddd.com
like that

Re: validation

musefan26-Jan-09 0:54

musefan

26-Jan-09 0:54

well one option would be to check for a '@' character in the textbox.Text string, then see if there is atleast one '.' character after the '@' character.

something like:

string text = TextBox1.Text;

string[] split = text.split('@');

if(split.length == 1)//only one '@' character
{
   if(split[1].Contains('.'))
       //Could be a valid email
}
//else is not a valid email address

Re: validation

Manas Bhardwaj26-Jan-09 0:59

Manas Bhardwaj

26-Jan-09 0:59

musefan wrote:
well one option would be to check for a '@' character in the textbox.Text string, then see if there is atleast one '.' character after the '@' character.

Have you ever heard of Regular Expressions?
In fact, Regular Expression validators(as the name suggest) can do this with lot ease.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: validation

musefan26-Jan-09 1:05

musefan

26-Jan-09 1:05

I have, but I dont remember how to do off top of head so offered another solution

Re: validation

butchzn27-Jan-09 0:47

butchzn

27-Jan-09 0:47

<asp:TextBox ID="tbEmail" runat="server" ValidationGroup="Register" />

<asp:RegularExpressionValidator ForeColor="Red" ValidationGroup="Register" ControlToValidate="tbEmail" ErrorMessage="Email Address is not valid." ValidationExpression="^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$" EnableClientScript="true" ID="RegularExpressionValidator1" runat="server" Display="Dynamic" />

Or you could create a custom validator that will do the validation for you and set your page IsValid property to true or false depending whether valid or not.

Re: validation

Christian Graus26-Jan-09 1:03

Christian Graus

26-Jan-09 1:03

abu rakan wrote:
hi men

There are women on this site, too.

There's a control built in for validating text, or, as someone said, you can use regex.

Christian Graus

Driven to the arms of OSX by Vista.

Re: validation

abu rakan26-Jan-09 10:49

abu rakan

26-Jan-09 10:49

I am soooooo sorry "Christian Graus" about hi men
about my problem actually i don't understand you or
may be you don't understand me!!!!

Re: validation

Kaushal Arora26-Jan-09 19:41

Kaushal Arora

26-Jan-09 19:41

This is a javascript email validator. This validator can be customized to allow any domain name.

// Email Validator
function emailCheck (emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD. 1 means check it, 0 means don't. */

var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */

var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* The following pattern is used to check if the entered e-mail address
fits the user@domain format. It also is used to separate the username
from the domain. */

var emailPat=/^(.+)@(.+)$/;

/* The following string represents the pattern for matching all special
characters. We don't want to allow special characters in the address.
These characters include ( ) < > @ , ; : \ " . [ ] */

var specialChars="\$\$><@,;:\\\\\\\"\\.\\[\\]";

/* The following string represents the range of characters allowed in a
username or domainname. It really states which chars aren't allowed.*/

var validChars="\[^\\s" + specialChars + "\]";

/* The following pattern applies if the "user" is a quoted string (in
which case, there are no rules about which characters are allowed
and which aren't; anything goes). E.g. "jiminy cricket"@disney.com
is a legal e-mail address. */

var quotedUser="(\"[^\"]*\")";

/* The following pattern applies for domains that are IP addresses,
rather than symbolic names. E.g. joe@[123.124.233.4] is a legal
e-mail address. NOTE: The square brackets are required. */

var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;

/* The following string represents an atom (basically a series of non-special characters.) */

var atom=validChars + '+';

/* The following string represents one word in the typical username.
For example, in john.doe@somewhere.com, john and doe are words.
Basically, a word is either an atom or quoted string. */

var word="(" + atom + "|" + quotedUser + ")";

// The following pattern describes the structure of the user

var userPat=new RegExp("^" + word + "(\\." + word + ")*$");

/* The following pattern describes the structure of a normal symbolic
domain, as opposed to ipDomainPat, shown above. */

var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");

/* Finally, let's start trying to figure out if the supplied address is valid. */

/* Begin with the coarse pattern to simply break up user@domain into
different pieces that are easy to analyze. */

var matchArray=emailStr.match(emailPat);

if (matchArray==null) {

/* Too many/few @'s or something; basically, this address doesn't
even fit the general mould of a valid e-mail address. */

//alert("Email address seems incorrect (check @ and .'s)");
return false;
}
var user=matchArray[1];
var domain=matchArray[2];

// Start by checking that only basic ASCII characters are in the strings (0-127).

for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
//alert("Ths username contains invalid characters.");
return false;
}
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
//alert("Ths domain name contains invalid characters.");
return false;
}
}

// See if "user" is valid

if (user.match(userPat)==null) {

// user is not valid

//alert("The username doesn't seem to be valid.");
return false;
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
host name) make sure the IP address is valid. */

var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {

// this is an IP address

for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
//alert("Destination IP address is invalid!");
return false;
}
}
return true;
}

// Domain is symbolic name. Check if it's valid.

var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
//alert("The domain name does not seem to be valid.");
return false;
}
}

/* domain name seems valid, but now make sure that it ends in a
known top-level domain (like com, edu, gov) or a two-letter word,
representing country (uk, nl), and that there's a hostname preceding
the domain or country. */

if (checkTLD && domArr[domArr.length-1].length!=2 &&
domArr[domArr.length-1].search(knownDomsPat)==-1) {
//alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
//alert("This address is missing a hostname!");
return false;
}

// If we've gotten this far, everything's valid!
return true;
}

ask about the easy way to define and use color array

Seraph_summer26-Jan-09 0:05

Seraph_summer

26-Jan-09 0:05

I want to define a color array based on the system defined color such as Color.Blue, Color.Green and so on.
that is: Color [50] color_array=new Color [50]
but I don't know how to define it in an easy way so that I don't need to write all the available color by hand, because if I want to write all, it will take so long time, is there any simple way? thanks.

Re: ask about the easy way to define and use color array

Christian Graus26-Jan-09 0:17

Christian Graus

26-Jan-09 0:17

you can iterate over the Colors array that exists already, or use loops to build colors with steadily increasing r/g/b values.

Christian Graus

Driven to the arms of OSX by Vista.

Re: ask about the easy way to define and use color array

DaveyM6926-Jan-09 0:20

DaveyM69

26-Jan-09 0:20

The color's that are availableare actually static properties of the Color class, so I think you may have to use reflection.

There's not *that* many, it'd be easier to do it by hand and your program will run much quicker IMO.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: ask about the easy way to define and use color array

Dan Neely26-Jan-09 2:13

Dan Neely

26-Jan-09 2:13

He could always write a microapp that used reflection to write out a hardcoded list to include in his main program. Roll eyes | :rolleyes:

Today's lesson is brought to you by the word "niggardly". Remember kids, don't attribute to racism what can be explained by Scandinavian language roots.
-- Robert Royall

Re: ask about the easy way to define and use color array

Jimmanuel26-Jan-09 3:02

Jimmanuel

26-Jan-09 3:02

you can use the KnownColor[^] enumeration to do stuff like this:

foreach (string color in Enum.GetNames(typeof(KnownColor)))
{
    // print the color name
    // use Color.FromName(...) to create an instance of the Color class
    // etc
}

D.Jothi25-Jan-09 23:38

D.Jothi

25-Jan-09 23:38

Pls send me the article on latest version of HL7

Re: Hi

Vimalsoft(Pty) Ltd25-Jan-09 23:46

Vimalsoft(Pty) Ltd

25-Jan-09 23:46

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswam@its.co.za

Re: Hi

D.Jothi25-Jan-09 23:56

D.Jothi

25-Jan-09 23:56

Thank u

HL7

DaveyM6925-Jan-09 23:53

DaveyM69

25-Jan-09 23:53

Just wanted to say "Hi".

See - it doesn't quite work does it?

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: Hi

#realJSOP25-Jan-09 23:55

#realJSOP

25-Jan-09 23:55

This is not the HL7 support site.

Beyond that, if you're working with HL7, it sucks to be you. Of course, you could be working on AHLTA, and that sucks even more.