This article mainly introduces the difference between JQuery and submit() in JS. Friends who need it can refer to
ASP.NET serverControlPostback is using this piece of JS code:
The code is as follows:
var theForm = document .forms['form1']; if (!theForm) { theForm = document.form1; } function doPostBack(eventTarget, eventArgument) { if (!theForm.onsubmit || (theForm.onsubmit() != false)) { theForm.EVENTTARGET.value = eventTarget; theForm.EVENTARGUMENT.value = eventArgument; theForm.submit(); } }
The problem I encountered today is that I want to post back before the server-side control Assign a value to one of the hidden fields to pass the value to the server .
So I added an event using JQuery's submit([[data],fn]) method, but found that it didn't work.
I tried $("form:first").submit() and found that the event function can be triggered.
What's going on? After checking the information, I found that the native function void submit() of js does not trigger the submit event. This is why there is
in the code above. The code is as follows:
if (!theForm.onsubmit || (theForm .onsubmit() != false)) {
...
}
That’s it.
So write the added event as
The code is as follows:
$("form:first")<span style="color:#006600">.get(0)</span>.onsubmit = function () { ... };
That’s it.
In addition, events added using JQuery's submit([[data],fn]) can be triggered using $().submit().
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