我的视图中有一个ajax表单
@using (Ajax.BeginForm("AttendeeAvailability", "Response", new AjaxOptions { HttpMethod = "POST", OnSuccess = "done" }))
{
@Html.ValidationSummary(true)
....
//some stuff
....
}
<script type="text/javascript">
function done() {
//do something;
}
</script>
这是控制器的post方法
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult AttendeeAvailability(AttendeeAvailableDateTime response)
{
....
....
if (somecheck1)
{
ModelState.AddModelError(string.Empty,"Check error1");
return View();
}
if (doesTimeExists2)
{
ModelState.AddModelError(string.Empty,"Check error2");
return View();
}
//do some database actions
return View();
}
目前我没有收到任何在控制器中设置的Modelstate错误消息。
我猜是因为当控制器中的任务成功完成时,它会调用我在视图中的完成功能。
在这种情况下,如何发送一些错误并将其显示为Modelstate错误?
答案 0 :(得分:2)
更改表单调用标题(将参数添加到done
函数):
@using (Ajax.BeginForm("AttendeeAvailability", "Response",
new AjaxOptions { HttpMethod = "POST", OnSuccess = "done(data)" }))
...和JavaScript:
<script type="text/javascript">
function done(data) {
//do something with the data
}
</script>
data
的外观完全取决于您在行动中如何构建它:
[HttpPost]
[ValidateAntiForgeryToken]
public JsonResult AttendeeAvailability(AttendeeAvailableDateTime response)
{
....
....
if (somecheck1)
{
//ModelState.AddModelError(string.Empty,"Check error1");
return Json(new { error = "Check error1" }, JsonRequestBehavior.AllowGet);
}
if (doesTimeExists2)
{
//ModelState.AddModelError(string.Empty,"Check error2");
return Json(new { error = "Check error2" }, JsonRequestBehavior.AllowGet);
}
//do some database actions
return Json(new { success = "Success" }, JsonRequestBehavior.AllowGet);
}
在此之后,您可以通过解析来访问数据:
<script type="text/javascript">
function done(data) {
var confirmation = data;
if (confirmation["success"] != undefined) {
alert(confirmation["success"]);
}
else if (confirmation["error"] != undefined) {
alert(confirmation["error"]);
}
}
</script>