On Key Down Restrict the user to enter Some Special Characters

Question

I want to restrict the user in toolbar search by not allowing him/her using Some Special Characters like (\'/\',\'>\',\'<\',\'|\').Please help me out.

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Answer 1

If you want allow only some special characters are entered in the input field of the search toolbar you can use dataEvents of the searchoptions defined using type:'keypress' or type:'keydown'. It will follows to call jQuery.bind and jQuery.unbind for the corresponding input field. The code fragment which allows only digits is following

searchoptions: {
    dataEvents: [
        {
            type: 'keypress', // keydown
            fn: function(e) {
                // console.log('keypress');
                if(e.keyCode >=48 && e.keyCode <=57) {
                    // allow digits
                    return true;
                } else {
                    // disallow the key
                    return false;
                }
            }
        }
    ]
}

In the live demo you will be not able to enter digits in the search field for the 'Name'.