Posting form data from Partial view to controller using ajax - jquery-ui

Question

I have a jquery grid that has a list of Employee Records.To edit the records there is a link on each row.On click of that A jquery model popup opens and loads the partial view to show and edit the data.But on click of the button(custom button not the jquery model button) on the popup(that loads a partial view),the client side validation using dataAnnotation does not work. If I make a submit form like:-
$("#btnUpdate).submit(function (e) {
e.preventDefault();
var $form = $(this);
if ($form.valid()) {
//Add ajax call
}
});
Then after submit it redirects to:- { ../Employee/Edit/EmployeeId } where it shows a blank screen as I dont have any view for this.
I want that after the form post it should just refresh the jquery grid.

Answer 1

public PartialViewResult _CreateSupplier()
{
return PartialView(new Supplier());
}
[HttpPost]
public JsonResult _CreateSupplier(Supplier model)
{
//Validation
return Json(new
{
status = transactionStatus,
modelState = ModelState.GetModelErorrs()
}, JsonRequestBehavior.AllowGet);
}
Form post jquery method
$('#create-supplier').submit(function (e) {
e.preventDefault();
var $form = $(this);
if (!ModelIsValid($form))
return;
AjaxPost($form.serialize(), '#Url.Action("_CreateSupplier")', function (result) {
if (result.status == 0) {
$form[0].reset();
//Success
var grid = $("#gridSupplier").data("kendoGrid");
grid.dataSource.read();
} else if (result.status == 1)
AddFormErrors($form, result);
else if (result.status == 2)
//error;
});
});
Checking model method is valid and if invalid adding errors to form
function ModelIsValid(form) {
var validator = $(form).validate(); // obtain validator
var anyError = false;
form.find("input").each(function () {
if (!validator.element(this)) { // validate every input element inside this step
anyError = true;
}
});
if (anyError)
return false; // exit if any error found
return true;
}
function AddFormErrors(form, errors) {
for (var i = 0; i < errors.modelState.length; i++) {
for (var j = 0; j < errors.modelState[i].errors.length; j++) {
var val = $(form).find("[data-valmsg-for='" + errors.modelState[i].key + "']");
if (val.html().length > 0) {
$(form).find("[for='" + errors.modelState[i].key + "']").html(errors.modelState[i].errors[j]);
} else {
val.html('<span for="' + errors.modelState[i].key + '" generated="true" class="" style="">' + errors.modelState[i].errors[j] + '</span>');
}
}
}
}
Ajax post method:
function AjaxPost(postData, url, callback) {
$.ajax({
url: url,
type: 'POST',
data: postData,
dataType: 'json',
success: function (result) {
if (callback) callback(result);
}
});
}
And last c# generic method which checks returns model state errors
public static IEnumerable<object> GetModelErorrs(this ModelStateDictionary modelState)
{
return modelState.Keys.Where(x => modelState[x].Errors.Count > 0)
.Select(x => new {
key = x,
errors = modelState[x].Errors.Select(y => y.ErrorMessage).ToArray()
});
}
Hope answer is useful...