是否可以使用复选框或单选按钮代替提交按钮？

Question

I have a form that allows me to dynamically add additional rows to a form using javascript but the button associated with adding new rows is too "bulky" and the script already incorporates the use of a check box that has to be checked in order to delete any rows associated with it, So I want to know if it's possible to use the check box to add and remove rows instead of a button? Here is the jsFiddle of the script http://jsfiddle.net/2gPfn/9/ and the code:

 function addRow(tableID) {
        var table = document.getElementById(tableID); 
        var rowCount = table.rows.length;
        var row = table.insertRow(rowCount);
        var colCount = table.rows[0].cells.length;
        for(var i=0; i<colCount; i++) {
            var newcell = row.insertCell(i);             
            newcell.innerHTML = table.rows[0].cells[i].innerHTML;
            newcell.children[0].name = newcell.children[0].name + rowCount;
            console.log(newcell.children[0].name);
            switch(newcell.childNodes[0].type) {
                case "text":
                        newcell.childNodes[0].value = "";
                        break;
                case "checkbox":
                        newcell.childNodes[0].checked = false;
                        break;
                case "select-one":
                        newcell.childNodes[0].selectedIndex = 0;
                        break;
            }
        }
    }

    function deleteRow(tableID) {
        try {
        var table = document.getElementById(tableID);
        var rowCount = table.rows.length;

        for(var i=0; i<rowCount; i++) {
            var row = table.rows[i];
            var chkbox = row.cells[0].childNodes[0];
            if(null !== chkbox && true === chkbox.checked) {
                if(rowCount <= 1) {
                    alert("Cannot delete all the rows.");
                    break;
                }
                table.deleteRow(i);
                rowCount--;
                i--;
            }


        }
        }catch(e) {
            alert(e);
        }
    }

Basically what I want to do is to add a new row the user will check the box and a new row will be added with a new check box. If they uncheck the previous checkbox the row will be deleted. Is this possible?

Answer 1

Not sure I really understand why you'd want to do this. But, if I'm understanding you correctly:

http://jsfiddle.net/2gPfn/13/

<INPUT type="checkbox" name="chk" onclick="doIt(this, 'dataTable')">

function doIt(el, tableID) {
    if (el.checked) {
        addRow(tableID);
    } else {
        deleteRow(el);
    }
}

function addRow(tableID) {
    /*  same as original */
}

function deleteRow(el) {
    var row = el.parentNode.parentNode;
    row.parentNode.removeChild(row);
}