Hope following code will do it:
@Html.HiddenFor(model => model.IsPublicChanged) @*create special model field for handling change event*@
$().ready(function () {
//catch change event and assign value to hidden field
$("input[name=IsPublic]").on("change", function () {
$("input[name=IsPublicChanged]").val('true');
});
});
Or some different js-code if you want to see if value of checkbox was changed comparing to it's initial value:
$().ready(function () {
var trackValue = $("input[name=IsPublic]").prop("checked");
$("form").on("submit", function () {
var actualValue = $("input[name=IsPublic]").prop("checked");
if (actualValue != trackValue) {
$("input[name=IsPublicChanged]").val('true');
}
});
});