So I have a Partial view that loads in with:
#Html.Partial("_partial", Model, new ViewDataDictionary { { "DisplayCheckbox", true } })
Within that _partial page is a loop that looks like this
#foreach (var w in Model.WeekEndingDateRange)
{
<th>#w.WeekEndingDate.FormatDate()</th>
}
which creates table headers for a jquery tinytable (that is later populated with data in my view).
The problem I'm having is that the Model.WeekEndingDateRange can change. When the user presses a button to filter results shown on the table, it makes an ajax call to my controller that looks like this
function filterResults(){
//do some stuff like creating "model"
$.ajax({
type: "POST",
url: "#Url.Action("FilterTable", "Report")",
data: model
})
.done(function (data) {
//continue on to populate table data
So when the ajax call finishes I can make a call like:
data.WeekEndingDateRange
to grab the list which I want the partial to loop through. This will create (size of the data.WeekEndingDateRange list) amount of headers for the table.
Therefore I need a way for the partial to not grab Model.WeekEndingDateRange but instead to grab data.WeekEndingDateRange. This way, before the table is filtered, the partial will create no headers (because no information is populated in the table) and as soon as the user filters their results, the table will create a new header for each element in data.WeekEndingDateRange.
I've already tried doing:
#Html.Partial("_ProjectAllocationReport", data, new ViewDataDictionary { { "DisplayCheckbox", true } })')
after my ajax call, but this won't work because data is out of scope.
Any help would be greatly appreciated!
I would suggest you just leverage your view. You actually DO want the partial to grab Model.WeekEndingDateRange. The problem is that your not updating the Model's WeekEndingDateRange.
So your ajax call would be something like
function filterResults()
{
$.ajax({
type: "POST",
url: "",
data: model,
datatype: "html"
}).done(function(html)
{
$("HeaderElementHere").html(html);
});
}
And in your controller, do
Model.WeekEndingDateRange = data.WeekEndingDateRange
#Html.Partial("_partial", Model, new ViewDataDictionary { { "DisplayCheckbox", true } })
All you are really wanting to do is pass up some end date that your View uses for it's loop to generate your HTML and then pass that back down in the ajax call to be put into your page.
Related
I have a view that has an html form. This form posts data to two entities.The first entity is in a one-to-many relationship with the other.
This form has an html table where the user can add as many rows as needed. Then on submitting the form, data of form will be posted to entity1 and data inserted in the html table should be collected and added to entity2, that has a many-to-one relationship with entity1.
I collected data inserted by user in html table as a js array of objects
and tried to send this as ajax to post action in the controller on form submission.
I had an error:
[The required anti-forgery form field "__RequestVerificationToken" is not present]
So I passed token in header and added authorization filter to post action
data sent from ajax is not null, but it is received in controller as null.
How can I solve this?
cols.push("DIGITAL_FILE_TYPE_ID");
cols.push("DOCUMENT_LAPI_ID");
var digitalMapRows = [];
$("table#digital-map-table tbody tr").each(function () {
data = {};
var selectedDigitalMapVal =
$(this).data("selectedDigitalMapVal");
data[cols[0]] = selectedDigitalMapVal;
var documentId = $(this).data("documentID");
data[cols[1]] = documentId.toString();
digitalMapRows.push(data);
data = {};
});
var headers = { __RequestVerificationToken: $('input[name="__RequestVerificationToken"]').val() };
if (digitalMapRows != null) {
$.ajax({
headers: headers,
url: "#Url.Action("Initiate")",
type: "POST",
cache: false,
data: JSON.stringify(digitalMapRows),
dataType: "json",
success: function (succ) {
console.log(succ);
},
error: function (err) {
console.log(err.statusText);
}
});
}
And this is the post action I'm posting to from ajax. Should my data be included in viewmodel rather than a separate argument? Hence data passed in this argument won't be filled in all cases.
[HttpPost]
//[ValidateAntiForgeryToken]
[ValidateHeaderAntiForgeryToken]
public ActionResult Initiate(SODViewModel vm,
IEnumerable<DIGITAL_MAPS> digitalMapRows)
{
//digitalMapRows returns as null
I have some checkboxes and a button (not in a form).
When the button is clicked, I have some jQuery and I am creating a post model which contains the values of the checked boxes and posting to a controller.
The controller then creates view models and I want to redirect the user to the correct view, passing the view model in to the view.
jQuery:
$.ajax({
url: AppSettings.baseUrl + "BOM/getMultiBOM",
type: 'POST',
data: JSON.stringify(data)
});
Controller:
[HttpPost]
public ActionResult getMultiBOM(multiBOMPostModel multiBomsPostModel)
{
BOM bom = null;
foreach (int value in multiBomsPostModel.bomsArray)
{
bom = db.BOMs.Find(value);
}
BOMViewModel viewModel = getViewModel(bom, null);
return RedirectToAction("OpenMultiBOM", new { viewModel = viewModel, bom = bom });
}
public ActionResult OpenMultiBOM(BOMViewModel viewModel, BOM bom)
{
viewModel.projectModel = new ProjectViewModel
{
project = bom.Project
};
return View(viewModel);
}
It is probably a bit of a mess.
I think the jQuery is necessary to pass the checkbox values to the controller.
When I use RedirectToAction to the method which then returns the view, the model is not being passed through, presumably as it is sending the model as a query string.
The view model is not simple and contains lists, IEnumerables, and nested models.
Can anyone help with the most efficient way to redirect/return the view while passing the view model?
Answer: I kept the ajax to post my checkbox values to the controller
$.ajax({
url: AppSettings.baseUrl + "BOM/getMultiBOM",
type: 'POST',
data: JSON.stringify(dataArr),
}).done(function (result) {
location.href = "/BOM/OpenMultiBOM";
});
In my controller, I assigned the posted values to a postModel and then stored them in TempData. The key here was to return a Json value which would then allow the redirect on the client side to take place.
public ActionResult getMultiBOM(multiBOMPostModel multiBOMPostModel)
{
TempData["BOMs"] = multiBOMPostModel;
return Json("success");
}
I then had another HttpGet method which would load after the page is redirected by the Ajax result and cast the TempData to an object.
[HttpGet]
public ActionResult OpenMultiBOM(int? BomMarkupMessage = null)
{
var bomIds = TempData["BOMs"] as multiBOMPostModel;
}
I would persist the viewmodel server side, perhaps in a session variable, or perhaps as a TempData (TempData typically only lives until the next request), and pass a key for the session variable to the second controller in the case of session variable, or use the TempData directly in your view in the case of TempData. This would avoid passing the whole object back and forth multiple times.
So the way that i have done this before is to have an empty div in DOM.
<div id="partialViewContent">
<!-- Content will be loaded later. -->
</div>
If you have a default view, you'll need to set it to load from URI using the below snippet.
$("#partialViewContent").load("Controller/Action",
function (response, status) {
if (status !== "success") {
console.log("An error has occured when attempting to load partial view.");
}
});
When you post to your controller action via JQUERY, have the action return a partial view with the model. (Assume model is relevant to each partial view).
Then when your ajax is complete, replace the content in partialViewContent with the POST response.
So basically I'm trying to show some Profile Data in my MVC Application.
Right now, everytime I click on a date on my Telerik Kendo Calendar, I can refresh the whole page and update the data I want.
However, instead of refreshing the whole I just want to refresh the partial views that shows only the data that updates after selecting the date.
Index.cshtml
<!--CODE-->
#Html.Partial("_WorkingTimeData")
<!--CODE-->
_WorkingTimeData.cshtml
var workedTime = ViewData["WorkedTimeToday"];
var hoursPerDay = ViewData["HoursPerDayContract"];
<p>You worked #workedTime hours</p>
<p>Hours Per Day (Contract) #hoursPerDay Hours</p>
Yes, right now I'm ViewDatas and it works.
This is the ajax code in Index.cshtml
$.ajax({ url: '/Profile/Index',
dataType: "json",
type: "POST",
data: JSON.stringify(10),
success: function(returl){
alert('It worked');
location.href=returl.Url;
},
error: function(jqXHR,responseText,textStatus){ alert(jqXHR.responseText) } });
Controller
[HttpPost]
public ActionResult Index(string number){
//THINGS TO DO
var redirectUrl = new UrlHelper(Request.RequestContext).Action("Index", "Profile");
return Json(new { Url = redirectUrl });
}
Well I'm very new to this, and I've been doing my research. However I still have some questions:
- Do I need to create a post method for _WorkingTimeData instead of Index like I have?
- Do I need to create a ViewModel for the Partial View?
Thanks
EDIT NUMBER 2 FOR VISHAL:
This didn't work at all, not even an alert, because, strangely, it doesn't recognise the calendar...
$("#calendar").kendoCalendar({
change : function() {
$.ajax({
url: "/Profile/WorkingTimeData",
type: "get"
}).done(function(data) {
$("#profile-timeline").html(data);
});
}});
It says $("#calendar").kendoCalendar is not a function (Telerik says that it's this way)
As for this, it reached the controller but didn't update anything:
function change() {
alert("Escolheste outro dia");
var calendar = $("#calendar").data("kendoCalendar");
var current = calendar.current();
alert(current);
$.ajax({
url: "/Profile/WorkingTimeData",
type: "get"
}).done(function(data) {
$("#profile-timeline").html(data);
});
}
I think it's because of the profile-timeline... It's a div in my view
Do I need to create a post method for _WorkingTimeData?
Yes, you need to create. But, Get would be fine too.
Do I need to create a ViewModel for the Partial View?
Not needed. If required you can create.
But, by looking at your partial view you are just using ViewData[""]. So, you need not to create any ViewModel.
Just create a method in Controller returning _WorkingTimeData PartialView.
And call that method by JQuery ajax on your DatePicker change event and replace the contents of the Div.
For example.
Controller
public PartialViewResult WorkingTimeData()
{
ViewData["WorkedTimeToday"]="NEW VALUE";
ViewData["HoursPerDayContract"] = "NEW VALUE";
return this.PartialView("_WorkingTimeData");
}
JavaScript
$("DATEPICKERELEMENT").change(function() {
$.ajax({
url: "/CONTROLLER/WorkingTimeData",
type: "get"
}).done(function(data) {
alert(data);
$("#divisionIdContainingPartialView").html(data);
}).fail(function() {
alert('error');
});
});
I wrote a post that details why you need to break the logic of thinking about partial views client-side. If you're interested you can find it here.
The TL;DR version is simply, all you have client-side is HTML. There's no knowledge about what was or was not rendered to the response via a partial view. As a result, the real question is "How do I change a portion of my HTML page based on an AJAX response?". In the simplest form, you simply select some element on the page and then alter its inner HTML. You can do that with some custom HTML created client-side or you can actually pass back an HTML document as your AJAX response and then insert that.
I reallly have a simple set of code to bring back a set of data that is triggered off a drop down.
this is the script:
function () {
$('#ProviderID').change(function () {
$.ajax({
url: '/servicesDisplay/Index',
type: 'Get',
data: { id: $(this).attr('value') },
success: function (result) {
// The AJAX request succeeded and the result variable
// will contain the partial HTML returned by the action
// we inject it into the div:
$('#serLocations').html(result);
}
});
});
This is the controller:
public ActionResult Index(string id)
{
int prid = Int32.Parse(id.Substring(0, (id.Length-1)));
string mulitval = id.Substring((id.Length-1), 1).ToString();
System.Data.Objects.ObjectResult<getProviderServiceAddress_Result> proList = theEntities.getProviderServiceAddress(prid);
List<getProviderServiceAddress_Result> objList = proList.ToList();
SelectList providerList = new SelectList(objList, "AddressID","Address1");
//ViewBag.providerList = providerList;
return PartialView("servicesDisplay/Index", providerList);
}
This is the view:
#model OCS_CS.Models.servicesDisplay
<div>
#Html.DropDownList(model => model.ServiceAdderssID, (IEnumerable<SelectListItem>)model)
</div>
When the drop down passes the in the value. The apps does hit the controller. But it highlightes the drop down in a light red and the view never displays.
Try this short version which uses the jquery load method.
$(function(){
$('#ProviderID').change(function () {
$('#serLocations').load("#Url.Action("Index","ServicesDisplay")?id="
+$(this).val());
});
});
If you want to avoid caching of result, you may send a unique timestamp along with the querystring to avoid caching.
$('#serLocations').load("#Url.Action("Index","ServicesDisplay")?id="
+$(this).val()+"&t="+$.now());
You are doing a GET, thats no meaning to pass data to ajax, you may pass data for POST:
First, put the value at the URL:
function () {
$('#ProviderID').change(function () {
$.ajax({
url: '/servicesDisplay/Index/' + $(this).attr('value'),
type: 'Get',
success: function (result) {
// The AJAX request succeeded and the result variable
// will contain the partial HTML returned by the action
// we inject it into the div:
$('#serLocations').html(result);
}
});
});
Second, mark the method as GET
[HttpGet]
public ActionResult Index(string id)
Hopes this help you!
You have quite a few problems with your code. First the model defined for your view is:
#model OCS_CS.Models.servicesDisplay
but in your action your're invoking the call to this view by passing in a SelectList:
SelectList providerList = new SelectList(objList, "AddressID","Address1");
return PartialView("servicesDisplay/Index", providerList);
this is not going to fly because the models do not match by type. Seconds problem is you are casting this SelectList into an IEnumerable. This is also not going to work. You need to cast to SelectList:
#Html.DropDownList(model => model.ServiceAdderssID, (SelectList)model)
but again until you match the type of your model in your action with the model on your view none of this will work. I suggest you install Fiddler to help you determine what sort of error are you getting.
firs of all i searched for my question but couldnt find anything that helped me get any further.
i am trying to implement a view which allows me to set permissions for the current user.
As the data-structure i use following recursive class where each PermissionTree-Object references the sub-permissions (permissions are hierarchically structured in my application) :
public class PermissionTree
{
public Permission Node; //the permission object contains a field of type SqlHierarchyId if that is relevant
public bool HasPermission;
public IList<PermissionTree> Children;
//i cut out the constructors to keep it short ...
}
here is how the controller looks like:
//this is called to open the view
public ActionResult Permissions()
{
//pass the root element which contains all permission elements as children (recursion)
PermissionTree permissionTree = PopulateTree();//the fully populated permission-tree
return View(permissionTree);
}
//this is called when i submit the form
[HttpPost]
public ActionResult Permissions(PermissionTree model)
{
SetPermissions(model);
ViewData["PermissionsSaved"] = true;
return View(model);//return RedirectToAction("Index");
}
in am using a strongly typed view like this:
#model PermissionTree
//....
#using (Html.BeginForm("Permissions", "Permission", null, FormMethod.Post, new { #class = "stdform stdform2" }))
{
<input name="save" title="save2" class="k-button" type="submit" />
<div class="treeview">
//i am using the telerik kendoUI treeview
#(Html.Kendo().TreeView()
.Name("Permissions")
.Animation(true)
.ExpandAll(true)
.Checkboxes(checkboxes => checkboxes
.CheckChildren(true)
)
.BindTo(Model, mapping => mapping
.For<PermissionTree>(binding => binding
.Children(c => c.Children)
.ItemDataBound( (item, c) => {
item.Text = c.Node.PermissionName;
item.Checked = c.HasPermission;
})
)
)
)
ok, so when i click the button, i want my viewmodel to be sent to the controller action that is decorated with [HttpPost]. But when i debug the application, the received model does not really contain my data (it is not null though).
Does anyone know how i can achieve my goal and get the whole viewmodel?
best regards,
r3try
I think it's better to use a JSON post here ,then it's easy to prepare the object in the javascript side.
I don't know how your HTML looks like or the names of the elements you can easyly use javascript/Jquery to build the client side json object with similar names and slimier hierarchy/dataTypes just like in the PermissionTree class. And then use Ajax post to post as JSON
var PermissionTree={Node:{},HasPermission:false,Children:{}}
$.ajax({ data:PermissionTree
type: "POST",
url: 'YourController/Permissions',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (result) {
}
);
The important thing is you need to find a better way of going throuth the tree view and build the object in javascript.
as i cant get that to work i was trying a slightly different approach:
example for adding a node:
- press add button -> execute ajax call -> add the node in nhibernate -> call the view again with the new data (the new node included)
controller-action that is called by the ajax request:
[Authorize]
[HttpPost]
public ActionResult AddPermission(string parentPermissionName, string permissionName)
{
var pd = ServiceContext.PermissionService.permissionDao;
Permission parentPermission = pd.GetPermissionByName(parentPermissionName);
if (parentPermission == null) {
parentPermission = pd.GetRoot();
}
if (parentPermission != null && !string.IsNullOrEmpty(permissionName) && !pd.PermissionExists(permissionName))//only add with a name
{
pd.AddPermission(parentPermission, permissionName);
}
//refresh data
PermissionTree permissionTree = LoadTreeSQLHierarchy(null, false);//start at root
return View("Permissions", permissionTree);
}
Ajax Request in the View:
function addNode() {
//... get the data here
var addData = { parentPermissionName: selectedNodeName, permissionName: newNodeName };
$.ajax(
{
data: addData,
type: "POST",
url: '#Url.Action("AddPermission", "Permission")',
dataType: "json",
success: function (result) {
//$('.centercontent').html(response);//load to main div (?)
return false;
},
error: function (xhr, ajaxOptions, thrownError) {
alert(xhr.status + ":" + thrownError);
return false;
}
}
);
return false;
}
But when i execute this i get an error stating that json.parse hit an invalid character (i get this error at the alert in the ajax's error function).
Judging from that message i would say that the problem is that i am returning html but the ajax call expects json or so...
But what is the correct way to just reload my view with the new data? Can i somehow tell the ajax call to not go back at all and just execute the called controller-method?