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This following line works as expected in Firefox but IE returns 'undefined'.
var selectedChoice = $("input[name='my.test[0].SelectedOption']:checked", '#myForm').val();
Here is a standalone sample that you can run...
Note the problem seems to be the use of '.' and '[]' in the name of the radio element. However this is how ASP.NET MVC renders them. Here is an example which works fine in Firefox but fails in IE.
<html>
<head>
<title>Testing radio selection jquery in IE 8</title>
<script src=".4.4.min.js" type="text/javascript"></script>
</head>
<body>
<form id="myForm">
<input name="selected.Option[0]" id="selected_Option1" type="radio" value="1" checked="checked" />
<label for="selected_Option1">Option 1</label>
<br />
<input name="selected.Option1" id="selected_Option2" type="radio" value="2" checked="checked" />
<label for="selected_Option2">Option 2</label>
<br />
<input name="selectedOption[2]" id="selected_Option3" type="radio" value="3" checked="checked" />
<label for="selected_Option3">Option 3</label>
<br />
<input name="selectedOption3" id="selected_Option4" type="radio" value="4" checked="checked" />
<label for="selected_Option4">Option 4</label>
<br />
<span id="displaySelectedChoice1">No value selected.</span>
<br />
<span id="displaySelectedChoice2">No value selected.</span>
<br />
<span id="displaySelectedChoice3">No value selected.</span>
<br />
<span id="displaySelectedChoice4">No value selected.</span>
</form>
<script language="javascript" type="text/javascript">
var selectedChoice = $("input[name='selected.Option[0]']:checked").val();
$('#displaySelectedChoice1').html('You have selected: ' + selectedChoice);
var selectedChoice = $("input[name='selected.Option1']:checked").val();
$('#displaySelectedChoice2').html('You have selected: ' + selectedChoice);
var selectedChoice = $("input[name='selectedOption[2]']:checked").val();
$('#displaySelectedChoice3').html('You have selected: ' + selectedChoice);
var selectedChoice = $("input[name='selectedOption3']:checked").val();
$('#displaySelectedChoice4').html('You have selected: ' + selectedChoice);
</script>
</body>
</html>
Notice that the 2nd, 3rd and 4th all work but the 1st returns 'undefined' for IE. Its the only one with both '.' and '[]'.
Thanks
This following line works as expected in Firefox but IE returns 'undefined'.
var selectedChoice = $("input[name='my.test[0].SelectedOption']:checked", '#myForm').val();
Here is a standalone sample that you can run...
Note the problem seems to be the use of '.' and '[]' in the name of the radio element. However this is how ASP.NET MVC renders them. Here is an example which works fine in Firefox but fails in IE.
<html>
<head>
<title>Testing radio selection jquery in IE 8</title>
<script src="http://ajax.aspnetcdn./ajax/jQuery/jquery-1.4.4.min.js" type="text/javascript"></script>
</head>
<body>
<form id="myForm">
<input name="selected.Option[0]" id="selected_Option1" type="radio" value="1" checked="checked" />
<label for="selected_Option1">Option 1</label>
<br />
<input name="selected.Option1" id="selected_Option2" type="radio" value="2" checked="checked" />
<label for="selected_Option2">Option 2</label>
<br />
<input name="selectedOption[2]" id="selected_Option3" type="radio" value="3" checked="checked" />
<label for="selected_Option3">Option 3</label>
<br />
<input name="selectedOption3" id="selected_Option4" type="radio" value="4" checked="checked" />
<label for="selected_Option4">Option 4</label>
<br />
<span id="displaySelectedChoice1">No value selected.</span>
<br />
<span id="displaySelectedChoice2">No value selected.</span>
<br />
<span id="displaySelectedChoice3">No value selected.</span>
<br />
<span id="displaySelectedChoice4">No value selected.</span>
</form>
<script language="javascript" type="text/javascript">
var selectedChoice = $("input[name='selected.Option[0]']:checked").val();
$('#displaySelectedChoice1').html('You have selected: ' + selectedChoice);
var selectedChoice = $("input[name='selected.Option1']:checked").val();
$('#displaySelectedChoice2').html('You have selected: ' + selectedChoice);
var selectedChoice = $("input[name='selectedOption[2]']:checked").val();
$('#displaySelectedChoice3').html('You have selected: ' + selectedChoice);
var selectedChoice = $("input[name='selectedOption3']:checked").val();
$('#displaySelectedChoice4').html('You have selected: ' + selectedChoice);
</script>
</body>
</html>
Notice that the 2nd, 3rd and 4th all work but the 1st returns 'undefined' for IE. Its the only one with both '.' and '[]'.
Thanks
Share Improve this question edited May 19, 2011 at 19:39 Justin asked May 19, 2011 at 18:06 JustinJustin 10.9k15 gold badges60 silver badges79 bronze badges 4- 2 I think IE doesn't like the square braces in the selector. Maybe you can try escaping them. – gen_Eric Commented May 19, 2011 at 18:15
- @Rocket pretty sure you're right on for this one. Care to post a 1 line answer showing how to escape the character and I'll give you answer? Thanks! – Justin Commented May 19, 2011 at 18:48
- 1 escape both the square brackets with two backslashes `\\` – clairesuzy Commented May 19, 2011 at 18:59
- I updated the description with a more targeted example. – Justin Commented May 19, 2011 at 19:41
6 Answers
Reset to default 2Try to escape the square braces in the selector, I don't think IE likes 'em too much. Also, you forgot to close the attribute selector.
var selectedChoice = $('input[name="my.test[0].SelectedOption"]:checked', '#myForm').val();
Or with escaped square braces and periods:
var selectedChoice = $('input[name="my\\.test\\[0\\]\\.SelectedOption"]:checked', '#myForm').val();
Yes, there are 2 backslashes.
I think this will work:
var selectedChoice =
$('input[name="my.test[0].SelectedOption"]:checked', '#myForm').val();
UPDATE:
Replace your JS with this:
var $radio = $('input[name="my\\.test\\[0\\]\\.SelectedOption"]');
$radio.change(function() {
$("#displaySelectedChoice")
.html("You have selected: " + $radio.filter(":checked").val());
});
See working jsFiddle demo
Your select test is invalid javascript:
var selectedChoice = $('input[name='my.test[0].SelectedOption:checked', '#myForm').val();
^--embeded quote breaks the string
This should work better:
var selectedChoice = $("input[name='my.test[0].SelectedOption']:checked", '#myForm').val();
Note that the :checked portion is not in the name= portion
I think you need to escape those [] inside your selector:
var selectedChoice = $("input[name='my.test\\[0\\].SelectedOption']:checked", '#myForm').val();
http://api.jquery./category/selectors/
At the top it has an entire paragraph about escaping.
I find your code pretty plicaded. Try something like this:
<form id="myForm">
<input name="my.test[0].SelectedOption" class="test" type="radio" value="1"/>
<label for="my_test_0__SelectedOption_1">Option 1</label>
<br />
<input name="my.test[0].SelectedOption" class="test" type="radio" value="2"/>
<label for="my_test_0__SelectedOption_1">Option 2</label>
<br />
<input name="my.test[0].SelectedOption" class="test" type="radio" value="3"/>
<label for="my_test_0__SelectedOption_1">Option 3</label>
<br />
<span id="displaySelectedChoice">No value selected.</span>
</form>
<script language="javascript" type="text/javascript">
$(".test").change(
function () {
var value = $(this).val();
$("#displaySelectedChoice").replaceTo("you choose: "+value)
}
)
</script>
Dont know wich version of jquery youre using, but even though I red about the new version of jquery that IE has a problem to "see" what you want with this ":checked". Anyways avoid using this atribute for radio because, well the only checked radio is the one changed anyways. My point is make a simpler code, it might help.
本文标签： javascriptWhy does IE8 fail to resolve my JQuery selector for a checked radio optionStack Overflow
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