<script type="text/javascript">
//非IE
function OnInput(event) {
var val = event.target.value;
var leng = val.length;
leng = parseInt(leng);
var leng2 = parseInt(100 - leng);
if (leng < 100) {
$("#span_meg").text("您还可以输入" + leng2 + "个字");
}
else {
var v1 = $("#txtContent").val();
$("#txtContent").val(v1.substr(0, 100))
$("#span_meg").text("您还可以输入0个字");
}
}
function OnPropChanged(event) {
if (event.propertyName.toLowerCase() == "value") {
var val = event.srcElement.value;
var leng = val.length;
leng = parseInt(leng);
var leng2 = parseInt(100 - leng);
if (leng < 100) {
$("#span_meg").text("您还可以输入" + leng2 + "个字");
}
else {
var v1 = $("#txtContent").val();
$("#txtContent").val(v1.substr(0, 100))
$("#span_meg").text("您还可以输入0个字");
}
}
}
</script>
如何优雅地限制textarea的输入字数?
2024-03-15 07:52:01 31 阅读