Restrict Special Characters

[rambabu1]

Hi 

I want to restrict special character / \during creation of use id in user form.

Please help if you have any idea.

[rambabu1]

It shows below error?

[AshishKM]

This is string variable so put the " "; 

var specialChar = "/\";

Thanks,

Ashish

[AshishKM]

Hi, You can use the code shared by @Priyanka Teke , the code is checking the restriction and alerting the user.

However you can set the regular expression 'what is allow' and check if input value is matched with regular expression or not.

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
    if (isLoading || newValue === '') {
        return;
    }
    // configure all allow character
	var regex = new RegExp("^[a-zA-Z0-9]*$");
	// note: this IF has ! - means it is only considering character values given in regex - you can edit the regex
    if (!regex.test(newValue)) {
        alert('Incorrect username');      // Alert the User if input value not matched with regExp
        g_form.setValue('user_name', ''); // Set the User Id field empty
    }

}

Thanks,

Ashish

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