无刷新提交表单(非Ajax实现)

HTML代码：

<iframe id="fra" name="frm" style="display: none;"></iframe><form id="frm" method="post" action="@Url.Content("~/Backstage/MachineMng/RoadSet/SaveTrackRoad")?roadId=@ViewBag.roadId" target="frm">这里是表单内容</form>

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JS代码：

若保存成功，后台返回{"ok":true}；若保存失败，后台返回{"ok":false, "msg":"错误信息"}

function save() {$("#frm").submit();$("#fra").one("load", function () {var data = eval("(" + $("#fra").contents().find("body").html() + ")");if (data.ok) {$("#divtrackroad").load("TrackRoad?roadId=" + '@ViewBag.roadId' + "&roadName=" + '@ViewBag.roadName' + "&viewOrEdit=1&t=" + new Date().valueOf());} else {alert("保存失败：" + data.msg);}});}

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