Onchange client script validation for String variable

[Mrman]

Hi All,

I am trying to validate a String variable to check it has only Letters and does not contain numbers and it should be in below format having 13 letters

Could you help me with the Onchange Script for alpha numeric  , I tried below but not working . 

Also I am not sure how to validate the format I mentioned above .Please suggest .

[Tony Chatfield1]

Hi you could check your format with soemthing like this

if(myText.length == 16 && myText.charAt(7) == ' ' && myText.charAt(11) == '-' && myText.charAt(13) == ' ' ) {

g_form.addInfoMessage("we have a winner');

}

[Ankur Bawiskar]

@ramamr 

You can use Regular expression for this and attach that Regex to the variable

Regards
Ankur

[Mrman]

@Ankur Bawiskar  Please see below Client script . It is not working and allowing characters which are not matching Regex and just checking if length is 16 .

Please suggest .

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }


    var pattern =  /^[A-Z-\s]/;
	//alert("the length is :" + newValue.length);

    if ((!pattern.test(newValue)) && (newValue.length != 16)){
		
		//if(newValue.length != 16){

        g_form.clearValue('u_employment_registration_book_ctps');
    g_form.showFieldMsg('u_employment_registration_book_ctps', 'Enter a valid CTPS ID ', 'error', true);
		//}
	}


    //Type appropriate comment here, and begin script below

}

[Ankur Bawiskar · Accepted solution]

@ramamr 

try either of the RegEx as per your requirement

Also no need of checking the length; the regular expression will handle this

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }

    // this will allow lower and upper case
    var pattern =  /^([A-Za-z]{7})+([\s]{1})+([A-Za-z]{3})+((-[A-Za-z]){1})+([\s]{1})+([A-Za-z]{2})$/; 
    // OR    
	// this will only allow upper case
	//var pattern = /^([A-Z]{7})+([\s]{1})+([A-Z]{3})+((-[A-Z]){1})+([\s]{1})+([A-Z]{2})$/;
	
    if (!pattern.test(newValue)){
      g_form.clearValue('u_employment_registration_book_ctps');
      g_form.showFieldMsg('u_employment_registration_book_ctps', 'Enter a valid CTPS ID ', 'error', true);	
    }
    //Type appropriate comment here, and begin script below

}

Regards
Ankur