I am trying to update my Razor view content using ajax in ASP.Net MVC 5. But, everytime its loading total page instead of partial request to the controller.
Please help which resources i need to add to my prject to work with ajax in MVC5 speciafically.
Resources Attched to my project to use Ajax:
jquery.unobtrusive-ajax.min.js
View Design:
#using (Ajax.BeginForm("RoomsAvail", "Bookings", new AjaxOptions
{
HttpMethod = "GET",
UpdateTargetId ="RoomsAvailData",
}))
{
<div class="col-sm-4 paddingzero margintopclass">
<button type="submit" value="Search">
<img src="~/Content/images/search.png" style="cursor:pointer" alt="Search" />
</button>
</div>
}
Booking Controller Action method
public ActionResult RoomsAvail(FormCollection inputParams)
{
minRatesInventory="Some Model Data from DB";
if(Request.IsAjaxRequest())
{
return PartialView("", minRatesInventory);
}
return View(minRatesInventory);
}
In the above code snippet, Request.IsAjaxRequest() is always returning false.
EDIT
I have added jquery.unobtrusive-ajax.min.js before jQuery. It makes problem to call ajax. I have updated this and its working fine.
Related
i'm using .Net core 2.1 application, inside for loop how can i trigger controller view page without returning to ajax response,
see following code
this is my razor view
#foreach (var item in Model.CategoryList)
{
<div class="col-sm-6 col-md-4 mb-4 mb-lg-0 col-lg-2" onclick="SelectCategory(#item.CategoryId)">
<a href="#" class="popular-category h-100">
<span class="icon"><span class="#item.Icon"></span></span>
<span class="caption mb-2 d-block">#item.CategoryName</span>
<span class="number">32,891</span>
</a>
</div>
}
<script>
function SelectCategory(id) {
$.ajax({
type: 'POST',
url: '#Url.Action("ProductsList","Home")',
dataType: 'json',
data: { parentId: id }
});
}
</script>
public ActionResult ProductsList(int parentId)
{
List<PilCategory> all = new List<PilCategory>();
if(parentId > 0)
all = _context.PilCategory.Where(x=>x.ParentId == parentId).OrderBy(a => a.ParentId).ToList();
else
all = _context.PilCategory.OrderBy(a => a.ParentId).ToList();
return View(all);
}
pls someone help me, thaks for advance
how can i trigger controller view page without returning to ajax response
As far as I know, we couldn't trigger controller view page without returning to ajax response. Since the ajax will send the request to the controller view and the controller view will return the view as html response back to the ajax.
If we don't handle the response, that means current page will not change.
If you just want to pass the parentId to the ProductsList method, I suggest you could try to use window.location, this will make this page redirect to the ProductsList view which achieve refresh the whole page.
Notice: If we using ajax to call ProductsList, the whole page will not refresh. If we using window.location, it will redirect to another page or refresh the whole page.
More details about how to achieve this, you could refer to below codes:
#section Scripts{
<script>
function SelectCategory(id) {
location.href = "/Home/ProductsList?parentId=" + id;
}
</script>
}
If you want to use ajax to achieve this, I suggest you could try to handle the response by using ajax success method. Normally, we will return the partial view in controller method and then we could add it into the html page by using jquery without refreshing the page.
More details about how to achieve this, you could refer to this answer.
I have the following index:
<div id='addProduct'>
#{ Html.RenderPartial("Create", new BoringStore.Models.Product()); }
</div>
<div id='productList'>
#{ Html.RenderPartial("ProductListControl", Model.Products); }
</div>
The partial Create view contains an invisible div which is used to create a new product.
After doing so the partial view ProductListControl is updated.
Now I want to do so with an edit function.
Problem: It's not possible to integrate the edit page while loading the index because at this moment I don't know which product the user wants to edit.
My thought:
I'd like to call my existing edit view in an jquery modal (not the problem) so the user can perform changes.
After saving the modal is closed (still not the problem- I could handle this) and the ProductListControl is updated (here's my problem ... :().
How am I able to do so?
I've seen some tutorials but I'd like to keep it as clean & easy as possible.
Most of them are using dom manipulating and get feedback from the server (controller) by a JsonResult.
If possible I'd like to stick to the razor syntax, no pure JavaScript or jquery and if possible I'd like to avoid JsonResults.
One way might be to use the Ajax.BeginForm for your create product view.
The Ajax.BeginForm accepts a number of AjaxOptions, one being the UpdateTargetId (your DOM id, in this case your productlist div), more info here.
Then in your product controller code you can return a partial view, with the product list. So for example:
Index.cshtml
#using (Ajax.BeginForm("AjaxSave", "Product", new AjaxOptions { HttpMethod = "GET", UpdateTargetId = "productList", InsertionMode = InsertionMode.Replace }))
{
// your form
<p>
<input type="submit" value="Save" />
</p>
}
...
<div id="productList">...
</div>
ProductController.cs
[HttpGet]
public ActionResult AjaxSave(Product product)
{
if (ModelState.IsValid)
{
// save products etc..
}
var allProducts = _productService.GetAllProducts();
return PartialView("ProductListControl", allProducts);
}
There is a nice article on about this here.
Controller:
public ActionResult Edit(string temp)
{
ViewBag.Time = DateTime.Now.ToString("hh:mm:ss");
return PartialView("Edit");
}
Partial View:
#using (Ajax.BeginForm("Edit", "Home", new AjaxOptions{UpdateTargetId = "mydiv"}))
{
<input type="submit" value="Save" />
}
Index View (part of contents)
<div id="mydiv">
<span>The Time is: #ViewBag.Time</span>
</div>
#Html.Partial("Edit")
ClientValidationEnabled and UnobtrusiveJavaScriptEnabled are true
jquery.validate.min.js, jquery.validate.unobtrusive.min.js, jquery.unobtrusive-ajax.min.js, MicrosoftMvcAjax.js and MicrosoftAjax.js are added
At first, the time is shown correctly. When the Save button is clicked for the first time, time disappears and Save button is shown twice and then nothing happens except calling the Action on clicking on both buttons.
You have things kind of backwards. Try this:
Controller
public ActionResult Edit(string temp)
{
ViewBag.Time = DateTime.Now.ToString("hh:mm:ss");
return PartialView("Edit");
}
Index View
#using (Ajax.BeginForm("Edit", "Home", new AjaxOptions{UpdateTargetId = "mydiv"}))
{
<input type="submit" value="Save" />
}
#Html.Action("Edit")
Partial View (Edit)
<div id="mydiv">
<span>The Time is: #ViewBag.Time</span>
</div>
The ViewBag is only accessable at runtime (when the page initially loads) so this means if you fetch data via ajax, the viewbag in the controller action is only accessable to the partial view of that controller action (and not index.cshtml which called the action via ajax). In short (tl;dr) to be able to use the viewbag which you set in Edit action, you need to use it in the returning partialview. (and not anywhere else, because the content isnt re-rendered by the razor engine)
I set things up like so.
Very simple, but I noticed the person posting the
question and the answer had no insertion mode so I posted this lame bit of code :)
{
HttpMethod = "post",
InsertionMode = InsertionMode.Replace,
UpdateTargetId = "the div youwant to update / replace"
}
In ASP.Net MVC 3.0 i am using a Ajax.Beginform
and hitting a JsonResult
on success of the form i am calling a jQuery Function.
but for some reason my form is redirecting to JsonAction
my View
#using (Ajax.BeginForm("ActionName", "Controller", null, new AjaxOptions
{
HttpMethod = "POST",
OnSuccess = "ShowResult"
}, new { id = "myform" }))
{
// All form Fields
<input type="submit" value="Continue" class="button standard" />
}
My controller
public JsonResult ActionName(FormCollection collection)
{
return Json(new { _status },JsonRequestBehavior.AllowGet);
}
jQuery
<script type="text/javascript">
function ShowResult(data) {
// alert("I am at ShowResult");
if (data.isRedirect) {
window.location.href = json.redirectUrl;
}
}
for some reason, when i click submit.
it runs the JSonResult and redirects the page to host/controller/actionname
I have included my
<script src="#Url.Content("jquery.unobtrusive-ajax.min.js")"></script>
in my layout.cshtml
can any one tell me what could be wrong?
I found the problem. Now i have to find the solution
on submit
I am validating my form
$("#myform").validate({
submitHandler: function (form) {
// my logic goes here....
}});
If i exclude the validation Ajax form works as expected.
But if i validate my form then ajax form is not working as expected
Thanks
when this happens its almost always because your script files aren't loaded
note from:
http://completedevelopment.blogspot.com/2011/02/unobstrusive-javascript-in-mvc-3-helps.html
Set the mentioned flag in the web.config:
Include a reference to the jQuery library ~/Scripts/jquery-1.4.4.js
Include a reference to the library that hooks this magic at ~/Scripts/jquery.unobtrusive-ajax.js
So load up fiddler http://fiddler2.com and see if the scripts are being called and loaded.
My site has a concept like Skype that allow users to go "Online" and "Offline". I created a partial view that allows the user to switch mode:
#if (Convert.ToBoolean(ViewData["IsLogged"].ToString()))
{
<div id="onlineStatus">
You are currently <strong>ONLINE</strong> >>
#Html.ActionLink("Go OFFLINE", "GoOffline", "Account")
</div>
}
else
{
<div id="offlineStatus">
Ready for business >>
#Html.ActionLink("Go ONLINE", "GoOnline", "Account")
</div>
}
This is how we load the Partial View:
public ActionResult OnlineStatusCtrl()
{
if (SiteUser.IsAuthenticated)
ViewData["IsLogged"] = SiteUser.IsOnline.ToString();
return PartialView("OnlineStatusCtrl");
}
When a user clicks on the link "Go ONLINE" or "Go OFFLINE", the Controller respond as:
public ActionResult GoOnline()
{
if (SiteUser.IsAuthenticated)
SiteUser.GoOnline();
ViewData["IsLogged"] = "True";
return RedirectToAction("Index", "Home");
//return PartialView("OnlineStatusCtrl");
//return EmptyResult();
}
public ActionResult GoOffline()
{
if (SiteUser.IsAuthenticated)
SiteUser.GoOffline(true);
ViewData["IsLogged"] = "False";
return RedirectToAction("Index", "Home");
}
This works well ...but the ONLY problem is that if I am on View XXXX, and I click on "Go Online", the controller redirects me to the Index View.
I tried "return EmptyResult()" or "return PartialView("OnlineStatusCtrl") but it does just not work.
From the code, you can see that the only thing the PartialView cares about is the "ViewData['IsLogged'] value"
QUESTION:
What is the way to REFRESH a partial view without having to refresh the entire page or redirect to the main page?
Is it maybe a matter of putting an Html.Beginform() ?
Is it maybe a matter of the Controller returning something that just refresh the content of the PartialView independently from what view is holding the PV itself?
Aiaiaiaia
I still can't figure out how MVC works with PartialViews/
UPDATE
I have updated the code as x suggested and the HTML output is as follow:
<div id="divStatus">
<form action="/" data-ajax="true" data-ajax-mode="replace" data-ajax-update="#divStatus" id="form0" method="post">
<div id="offlineStatus">
Ready for business >>
Go Online
</div>
</form>
</div>
When I click on the LINK, the Controller return PartialView("_OnlineStatusCtrl"); which is hte name of the calling PV ...and the ENTIRE PAGE gets replaced.
You're going to have to use an ajax call of some sort (Microsoft ajax helpers built into MVC, or jquery/javascript ajax call.
To use Microsoft's Ajax, you can use Ajax.BeginForm or Ajax.ActionLink. Both take an AjaxOptions parameter that will allow you to set javascript functions for OnSuccess, and an UpdateTargetId to display the returned data (usually a partial view). Using this will call your action which should return a partial view. Your partial view then replaces the html element (usually a div) identified by the UpdateTargetId parameter. If you decide to go this route, make sure you reference all the proper Microsoft ajax/mvc scripts. You'll pretty much need each script with any combinations of Microsoft, Ajax, Mvc, and even unobtrusive in the name.
Here's an example of one of my ajax forms (modified slightly for simplicity)
<% using(Ajax.BeginForm("addAttribute", new { id = Model.PersonId, attributeId = item.AttributeId }, new AjaxOptions { UpdateTargetId = "myTargetId", OnSuccess = "initForm" })) { %>
<input type="submit" value="Ok" class="editMode okButton" disabled="disabled" />
<input type="button" class="editMode cancelButton" value="Cancel" />
<br />
<input type="button" value="Add" class="addButton" />
<% } %>
I have a div with an id of "myTargetId" (for this example) that will be updated with the returned partial view.