Validate Special characters

[Former Member]

Hi Experts,

Is there any possible to validate Special characters(!,@,#,$,%,^,&,*,(,),,,,,etc) in Input field? If Possible How to do that?

Regards,

Manivannan P

[Former Member]

Hello,

You can validate those required characters in action handler.

You can put your validattion code like

if(currentchar == '@' || currentchar == '$' ......)

post some message

else

sucess

I hope this would resolve your problem.

Regards,

Pankaj Sharma

[Former Member]

hi

You can try the following code to validate the special characters using regular expressions :

for example : The following example validates that the string can only contain alphanumeric characters, asteric sign

String  input = "input%Sttring"
boolean dec=input.matches(("[^&]([\\p{Alnum}\\s\\-.*])*") ) ;

Therefore the "input" string will fail the validation as the input string contains "%" which is not permitted.

There are so many special characters and therefore you need to add in the regular expression what you want to permit in the string

Thanks

Ritushree

Edited by: Ritushree Saha on May 27, 2009 1:02 PM

Edited by: Ritushree Saha on May 27, 2009 1:03 PM

[Former Member]

Hi,

Try this below code. It works.

String str="abcd$%e1**";
String regexpChars = "^[a-zA-Z0-9]{1,}$";
Matcher matcher;
Pattern pattern = Pattern.compile(regexpChars);
matcher = pattern.matcher(str);
if(!matcher.matches())
{
System.out.println("Special Characters exists in string..");
}

Imports required:
import java.util.regex.Matcher;
import java.util.regex.Pattern;

Regards,

Charan

[Former Member]

closed

[Former Member]

hi

you can either go for patter matching for validating specialc characters or

you can get the Ascii values for the special characters and validate them

[Former Member]

Hi expert ..

you can use this code to solve yoour proble..try to use this code..

public void validate()

{

String aspc="asas222#";

boolean dec=aspc.matches(("[^&]([
p{Alnum}
s
])") ) ;

System.out.println("dec"+dec);thanks

jati

Edited by: sudhir kumar on Mar 25, 2009 6:28 AM

Edited by: sudhir kumar on Mar 25, 2009 6:29 AM

[Former Member]

Got it.

Thanks for your replies

Edited by: manivannan palanisamy on May 25, 2009 1:11 PM

[Former Member]

The formatting has been changed after posting.So am again sending same with striking the line.

boolean dec=input.matches(("[^&]([
p
s
-.])") ) ;

Thanks

Kanai

[Former Member]

Hi,

Create one function like validate with returntype boolean

public boolean validate( )

{

// get the value from text field from View

String input=wdContext.current[node]Element().get[context attribute]()

boolean dec=input.matches(("[^&]([
p{Alnum}
s
-.])") ) ;

return dec;

}

You need to call this function either from the any of your button action or onEnter of text.

Suppose your button action or onEnter of text function is Search().

Then you just write only that code.

public void onActionSearch(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )

{

IWDMessageManager msgMgr = wdThis.wdGetAPI().getComponent().getMessageManager();

if(validateInput()){

//Then do further processing

}

else

msgMgr.raiseException("Please remove special character in search field",true);

}

Hope this will resolve your problem

Thanks

Kanai

[Former Member]

Hi expert

suppose your string p

String str=sudhira!jati.com;

boolean validate=str.matches(("(^[
p!@#$%&,*])") );

hope is work

thanks

jati

Edited by: sudhir kumar on Mar 24, 2009 9:34 AM

Edited by: sudhir kumar on Mar 24, 2009 9:36 AM

[Former Member]

Hi Manivannan,

You can use Pattern & Matcher classes from java.util.regex package.

Refer java docs at http://java.sun.com/j2se/1.4.2/docs/api/index.html

Kind Regards,

Nitin

[former_member185086]

Hi

Use this [thread|; for help that how it will work , Go to reply (code below )which I have provided

if (attributeValue instanceof String)
{
if (((String) attributeValue).length() == 0)

It is just one condition that if length ==0 then display the error message in the same way we can put condision

for special characters.

[Hint|http://www.javapractices.com/topic/TopicAction.do?Id=96] is : we have to take the help of java classes how it deal with special characters . But still u feel problem then revert back I ll write it for u.

Best Regards

Satish Kumar

Edited by: satish jhariya on Mar 23, 2009 7:37 PM