javascript更改表单onsubmit动态 [英] javascript change form onsubmit dynamically

问题描述

我有一个带有一些操作和onsubmit值的表单，它是通过提交输入标签提交的。问题是它应该通过两个按钮提交，所以我为第二个按钮写了一个函数来改变动作并提交以下形式的值：

I have a form with some action and onsubmit values, which is submitted through a submit input tag. The problem is that it should be submittable by two buttons, so I wrote a function for the second button to change the action and onsubmit values of the form:

<a href="javascript:submitCompare()" class="submit">Compare</a>

function submitCompare()
{
    document.myForm.action = "anotherAction.php";
    document.myForm.onsubmit = function() {return countChecked()};
    document.myForm.submit();
}

function countChecked()
{
  var n = $(".reports input:checked").length;
  if (n >= 3 ) {
    alert ('You must select less than 3 reports.');
    return false;
  }
  else return true;
}

点击比较链接后，我会正确地发送给anotherAction.php页面，但即使我有超过2个选中的复选框（这是验证规则）。有人可以帮我让onsubmit函数正常工作吗？

After clicking on the Compare link it sends me to the anotherAction.php page correctly, but even when I have more than 2 selected checkboxes (which is the validation rule). Can somebody help me make the onsubmit function work correctly?

推荐答案

在 $ c>，您明确无条件地调用

In submitCompare(), you explicitly and unconditionally call

 document.myForm.submit();

你可能想要的是

 if (countChecked()) {
   document.myForm.submit();
 }

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