I am trying to run javascript based on TempData that i pass from the controller.
But using the code below with razor, it neve reach to second if statement. I have a feeling that i am not using the proper razor syntax.
#if (TempData["status"] != null)
{
<script type="text/javascript">
var status = "#TempData["status"]";
if (status == "customerAdded") {
swal("1!", "good", "success")
}
else {
}
</script>
}
You can convert TempData to String or else to check data value or you can use console.log("-"); inside your javascript to check your code run or not
You need to use Json.Encode and #Html.Raw on your C# data to make it compatible with your scripts.
#if (TempData["status"] != null)
{
<script type="text/javascript">
var status = '#Html.Raw(Json.Encode(TempData["status"]))'; // this is the change
if (status == "customerAdded") {
swal("1!", "good", "success")
}
else {
}
</script>
}
Related
How to use $.post or $.getJSON to get json from mvc controlller but not working below? Would you like help me?
var controlRole = function () {
var _url = 'IsStudent/';
console.log('IsStudent');
$.post(_url, {}, function (data) {
console.log('IsStudent2');
if (data == "true") {
$('#btnSent_').hide();
$('#btnDraft_').hide();
$('#btn_Inbox_').show();
$('#btnTrash_').show();
$.post('FillProgramListByUser/', {}, function (result) {
console.log('IsStudent3');
console.log(result);
$("#liProgramContainer ul").append('<li ><a class="btn" href="javascript:;" data-title="Sent">'+result.Name+'</a><b></b></li>');
});
// $.getJSON("FillProgramListByUser/", user, updateFields);
}
else {
$('#btnSent_').show();
$('#btnDraft_').show();
$('#btn_Inbox_').show();
$('#btnTrash_').show();
}
});
}
Controller side:
public JsonResult FillProgramListByUser()
{
string UserName = SessionVariables.CurrentUser.UserName;
int OrganizationId = SessionVariables.CurrentUser.OrganizationId;
IList<Program> programs = new List<Program>();
if (UserName != "system_admin")
{
programs = Uow.Programs.GetAll().Where(q => q.OrganizationId == OrganizationId).ToList();
}
return Json(programs, "application/json", Encoding.UTF8, JsonRequestBehavior.AllowGet);
}
[HttpPost]
public string IsStudent()
{
string UserName = SessionVariables.CurrentUser.UserName;
if (UserName != "system_admin")
{
return "true";
}
else
{
return "false";
}
}
Your controller action should return a JsonResult and not some strings:
[HttpPost]
public ActionResult IsStudent()
{
string UserName = SessionVariables.CurrentUser.UserName;
if (UserName != "system_admin")
{
return Json(new { success = true });
}
return Json(new { success = false });
}
Also in your FillProgramListByUser action you don't need to be explicitly setting the content type response header nor the encoding:
public ActionResult FillProgramListByUser()
{
string UserName = SessionVariables.CurrentUser.UserName;
int OrganizationId = SessionVariables.CurrentUser.OrganizationId;
IList<Program> programs = new List<Program>();
if (UserName != "system_admin")
{
programs = Uow.Programs.GetAll().Where(q => q.OrganizationId == OrganizationId).ToList();
}
return Json(programs, JsonRequestBehavior.AllowGet);
}
Also adapt your script so that the urls are not hardcoded as in your example but you used URL helpers to generate them:
<script type="text/javascript">
var controlRole = function () {
var isStudentUrl = '#Url.Action("IsStudent")';
$.post(isStudentUrl, function (data) {
if (data.success) {
$('#btnSent_').hide();
$('#btnDraft_').hide();
$('#btn_Inbox_').show();
$('#btnTrash_').show();
var fillProgramListByUserUrl = '#Url.Action("FillProgramListByUser")';
$.post(fillProgramListByUserUrl, function (result) {
$("#liProgramContainer ul").append('<li><a class="btn" href="javascript:;" data-title="Sent">'+result.Name+'</a><b></b></li>');
});
} else {
$('#btnSent_').show();
$('#btnDraft_').show();
$('#btn_Inbox_').show();
$('#btnTrash_').show();
}
});
};
</script>
Next put breakpoints in your controller actions and see if they are hit. Also don't forget to look at the network tab of your javascript debugging tool (FireBug or Chrome Developer Toolbar) which is where you will see the exact AJAX request being sent to the server and what does the server respond to. You will see the HTTP status code returned and you could also see the contents of the response. If the status code is non 2xx the success callback of your AJAX request will not be executed.
Another thing you should check is the Program model which is being returned by your FillProgramListByUser controller action. In there you are attempting to JSON serialize an IList<Program> but be careful: if this Program class has some circular references (often happens if you don't use view models but are directly passing your EF domain models to the views) you won't be able to JSON serialize it. The answer is of course obvious: use a view model.
I have the following:
#if ((#Model.SeqId != 0) & (Model.SeqId != 1))
{
<text>
window.location.href = "www.stackoverflow.com";
</text>
}
I don't know much about razor. Is there something I could do to make it simpler?
Yes, you can. Suffice to define a property on your view model
public bool ShouldRedirectToSO
{
get
{
return (SeqId != 0 && SeqId != 1);
}
}
and then:
<script type="text/javascript">
#if (Model.ShouldRedirectToSO)
{
#:window.location.href = 'http://www.stackoverflow.com';
}
</script>
or if you intend to redirect immediately on page load if the condition is met you could also do this directly from the controller:
public ActionResult Foo()
{
var model = ...
if (model.ShouldRedirectToSO)
{
return Redirect("http://www.stackoverflow.com");
}
return View(model);
}
Can SeqId ever be less than 0? If not, you could do
#if (Model.SeqId > 1)
{
<text>
window.location.href = "www.stackoverflow.com";
</text>
}
Also, you don't need to # the Model in a code block. You probably want to use && instead of & as this fails as soon as the first test is false, saves a few CPU cycles.
http://msdn.microsoft.com/en-us/library/2a723cdk(v=vs.71).aspx
I have the following to get the Json abject passed from the controller and populate the various textboxes in the view. However, nothing is happening even though controller is passing a valid Json object. What is wrong with this code???
<script language="javascript" type="text/javascript">
$(document).ready(function() {
var url = '<%=Url.Action("DropDownChange") %>';
$("#vendorID").change(function() {
var selectedID = $(this).val();
if (selectedID != "New Vendor Id") {
//$.post('Url.Action("DropDownChange","Refunds")', function(result) {
$.post(url, { dropdownValue: selectedID }, function(result) {
alert(selectedID);
$("#name").val(result.Name);
$("#city").val(result.City);
$("#contact").val(result.Contact);
$("#address2").val(result.Address2);
$("#address1").val(result.Address1);
$("#state").val(result.State);
$("#zip").val(result.Zip);
});
}
});
});
This is the code in my controller;
public JsonResult DropDownChange(string dropdownValue)
// This action method gets called via an ajax request
{
if (dropdownValue != null && Request.IsAjaxRequest() == true)
{
paymentApplicationRefund =
cPaymentRepository.PayableEntity(dropdownValue);
paymentApplicationRefund.Address1.Trim();
paymentApplicationRefund.Address2.Trim();
paymentApplicationRefund.Name.Trim();
paymentApplicationRefund.City.Trim();
paymentApplicationRefund.Contact.Trim();
paymentApplicationRefund.State.Trim();
paymentApplicationRefund.Zip.Trim();
return Json(paymentApplicationRefund,"application/json");
}
else
{
return null;
}
}
You probably just need to tell it to expect JSON data back. By default it assumes it's HTML.
$.post(url, { dropdownValue: selectedID }, function(result) {
alert(selectedID);
$("#name").val(result.Name);
$("#city").val(result.City);
$("#contact").val(result.Contact);
$("#address2").val(result.Address2);
$("#address1").val(result.Address1);
$("#state").val(result.State);
$("#zip").val(result.Zip);
}, 'json');
I prefer sending Json to a ActionResult with my DTO as the parameter and use the JsonValueProviderFactory do the deserialization for me.
Sending JSON to an ASP.NET MVC Action Method Argument
Try this...
Add the ".change()" at the end of the function.
$(document).ready(function() {
var url = '<%=Url.Action("DropDownChange") %>';
$("#vendorID").change(function() {
.....
}).change();
});
I have two user controls on the page and one of the user control has this text aread.
which is used to add a note and but when they click add note button the page reloads.
I do not want the page to reload ,i was looking for an example which this is done without
postback.
Thanks
i tired doing this using JSON , but it throws the following error
The HTTP verb POST used to access path '/Documents/TestNote/Documents/AddNote' is not allowed.
<script type="text/javascript">
$(document).ready(function() {
$("#btnAddNote").click(function() {
alert("knock knock");
var gnote = getNotes();
//var notes = $("#txtNote").val();
if (gnote == null) {
alert("Note is null");
return;
}
$.post("Documents/AddNote", gnote, function(data) {
var msg = data.Msg;
$("#resultMsg").html(msg);
});
});
});
function getNotes() {
alert("I am in getNotes function");
var notes = $("#txtNote").val();
if (notes == "")
alert("notes is empty");
return (notes == "") ? null : { Note: notes };
}
</script>
</asp:Content>
Something like this would give you the ability to send data to an action do some logic and return a Json result then you can update your View accordingly.
Javascript Function
function AddNote(){
var d = new Date(); // IE hack to prevent caching
$.getJSON('/MyController/MyAction', { data: "hello world", Date: d.getTime() }, function(data) {
alert(data);
// call back update your view here
});
}
MyController Action
public virtual JsonResult MyAction(string data)
{
// do stuff with your data here, which right now my data equals hello world for this example
return Json("ReturnSomeObject");
}
What you want is AJAX update. There will always be a postback (unless you are satisfied with simple Javascript page update that does not save on the server), but it won't be the flashing screen effect any more.
I have a ASP.Net MVC JsonResult function in which I want to return the contents of a PartialView (The content has to be loaded using Ajax, and for some reason I can't return a PartialViewResult).
To render the PartialView I need the ViewContext object.
How do you get the current ViewContext object within an Action method? I don't even see HttpContext.Current in my action method.
I am using ASP.net MVC 1.
a ViewContext is not available within the action method because it is constructed later before rendering the view. I would suggest you using MVCContrib's BlockRenderer to render the contents of a partial view into a string.
I may have missed a point somewhere but my Actions that returned partial views do so by returning a View object that refers to an ascx page. This will return partial HTML without the full page constructs (html, head, body, etc.). Not sure why you'd want to do anything beyond that, is there a specific reason you need to return PartialViewResult? Here's an example from my working code.
First the Action in my controller:
public ViewResult GetPrincipleList(string id)
{
if (id.Length > 1)
id = id.Substring(0, 1);
var Principles = competitorRepository.Principles.Where(p => p.NaturalKey.StartsWith(id)).Select(p=>p);
return View(Principles);
}
And then the partial view (ascx):
<%# Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IEnumerable<MyProject.Data.Principle>>" %>
<% foreach (var item in Model) { %>
<div class="principleTitle" title="<%= Html.Encode(item.NaturalKey) %>"><%= Html.Encode(item.Title) %></div>
<%} %>
Lastly, the Jquery that sets up the call:
$(function() {
$(".letterSelector").click(function() {
$("#principleList").load("/GetPrincipleList/" + $(this).attr("title"), null, setListClicks);
});
});
So, a full AJAX process, hope that helps.
---- UPDATE following comment ----
Returning Json data is just as easy:
Firstly, initiating the AJAX call when a select box changes:
$("#users").change(function() {
var url = "/Series/GetUserInfo/" + $("#users option:selected").attr("value");
$.post(url, null, function(data) { UpdateDisplay(data); }, 'json');
});
The javascript that processes the returned json data:
function UpdateDisplay(data) {
if (data != null) {
$("div.Message").fadeOut("slow", function() { $("div.Message").remove(); });
$("#Firstname").val(data.Firstname);
$("#Lastname").val(data.Lastname);
$("#List").val(data.List);
$("#Biography").val(data.Biography);
if (data.ImageID == null) {
$("#Photo").attr({ src: "/Content/Images/nophoto.png" });
$("#ImageID").val("");
}
else {
if (data.Image.OnDisk) {
$("#Photo").attr({ src: data.Image.ImagePath });
}
else {
$("#Photo").attr({ src: "/Series/GetImage?ImageID=" + data.ImageID });
}
$("#ImageID").val(data.ImageID);
}
$("form[action*='UpdateUser']").show();
} else {
$("form[action*='UpdateUser']").hide();
}
};
And finally the Action itself that returns the json data:
public JsonResult GetUserInfo(Guid id)
{
MyUser myuser = (from u in seriesRepository.Users
where u.LoginID == id
select u).FirstOrDefault();
if (myuser == null)
{
myuser = new MyUser();
myuser.UserID = 0;
myuser.Firstname = Membership.GetUser(id).UserName;
myuser.Lastname = "";
myuser.List = "";
myuser.Biography = "No yet completed";
myuser.LoginID = id;
}
return Json(myuser);
}
Does that help? If not then can you post some of the code you are working on as I'm missing something.