仅允许gridview文本框采用0-5之间的十进制数 [英] Only allow gridview textbox to take decimal number between 0-5

问题描述

我写了一个如下所示的java脚本函数：to只允许gridview文本框取0-5之间的十进制数。但问题是它只需要十进制数中的一个单点，即使在小数点后也不会超过5。所以我无法在文本框中写入3.8 / 4.8 / 2.6类型的值

I wrote a java-script function like below: to Only allow gridview textbox to take decimal number between 0-5. But the problem is it takes more than only one single point in decimal numbers and it also does not take anything greater than 5 even after decimal points. so i m not been able to write 3.8/4.8/2.6 type of value in textbox

<script type="text/javascript">
    var specialKeys = new Array();
    specialKeys.push(8); //Backspace
    $(function () {
        $(".numeric").bind("keypress", function (e) {
            var keyCode = e.which ? e.which : e.keyCode
            var ret = ( keyCode== 46 || (keyCode >= 48 && keyCode <= 53 ) || specialKeys.indexOf(keyCode) != -1);
            if (ret) {
                $(this).next().remove();
            }

            else {
                if (!$(this).next().hasClass("error")) {
                    $(this).after("<span class = 'error'><br />* Input digits (1-5)</span>");
                }
            }
            return ret;
        });

            $(".numeric").bind("paste", function (e) {
                return false;
            });
            $(".numeric").bind("drop", function (e) {
                return false;
            });
        });

</script>

有人能给我任何建议来解决这个问题吗？

can anyone give me any suggestion to solve that problem?

推荐答案

（ function （）{

（ 。numeric）。bind（ keypress， function （e）{
var keyCode = e.which？e。其中：e.keyCode
var ret =（keyCode == 46 ||（keyCode> ; = 48 && keyCode< = 53 ）|| specialKeys.indexOf（keyCode）！如果（ret）{

(".numeric").bind("keypress", function (e) { var keyCode = e.which ? e.which : e.keyCode var ret = ( keyCode== 46 || (keyCode >= 48 && keyCode <= 53 ) || specialKeys.indexOf(keyCode) != -1); if (ret) {

（这个）。next（）。remove（）;
}

else {
if （！

(this).next().remove(); } else { if (!

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