早上好,
我有一些javascript来检查打印前输入是否为空,如果是,请取消打印。
我已将jquery datepicker作为类添加到其中一个字段中,现在它只应用一个类或另一个类。 (我已经尝试过将datepicker作为ID),但不起作用。
使用Javascript:
function checkForm(thisForm) {
var len = thisForm.elements.length ;
var cnt = 0 ;
for ( var i=0; i < len; i++) {
var elem = thisForm.elements[i] ;
if (elem.className == "formFieldRequired") {
if ((elem.value == "" || elem.value == -1)) {
alert("WARNING:\n You must supply information for the " + elem.name + " field");
elem.focus();
return false;
}
}
}
window.print();return true;
}
输入:
<input name="Effective Date" type="text" style="width:12%;" class="formFieldRequired datepicker" placeholder="DD/MM/YYYY" onkeyup="javascript:return mask(this.value,this,'2,5','/');" maxlength="10">
有关为何发生这种情况以及任何修复的任何想法? - 我可能会遗漏一些完全明显的东西!
答案 0 :(得分:1)
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-datetimepicker/2.5.4/jquery.datetimepicker.js"></script>
<form id="myform">
<input name="Effective Date" type="text" style="width:12%;" class="formFieldRequired datepicker" placeholder="DD/MM/YYYY" onkeyup="javascript:return mask(this.value,this,'2,5','/');" maxlength="10">
</form>
<script>
function checkForm(thisForm) {
var len = thisForm.elements.length;
var cnt = 0 ;
for ( var i=0; i < len; i++) {
var elem = thisForm.elements[i] ;
console.log(elem.className)
if (elem.className.indexOf("formFieldRequired") != -1) {
if ((elem.value == "" || elem.value == -1)) {
alert("WARNING:\n You must supply information for the " + elem.name + " field");
elem.focus();
return false;
}
}
}
window.print();return true;
}
checkForm(document.getElementById("myform"));
</script>