I have a very simple jQuery code that basically sends an
array of integer back to my ASP.NET MVC Controller class.
jQuery code
$.ajax({
type: 'POST',
url:
"/MyController/MyAction",
data: { myArray:
ids }
});
My controller action:
public void MyAction (int[] myArray) {
// do stuff here
...
}
But upon upgrading to jQuery 1.4.x, it does not work
anymore. The param "myArray" in MyAction is always null.
During debugging, I found out that somehow it sent the post
data as "myArray[]" instead of "myArray".
We cannot name a parameter name with brackets in C# so simply renaming the
parameter name in MyAction won't work.
After some readings, it turns out that this is a change in
the jQuery 1.4 release - it changes the way it does param serialization. But,
jQuery also provides a new flag in $.ajax to override the default behavior (and
go back to use the old way of param serialization): the "traditional"
option in
$.ajax. So here is my revised code:
$.ajax({
type: 'POST',
url:
"/MyController/MyAction",
data: { myArray:
ids },
traditional: true
});
You can read more about the new param serialization here.
