In my view i have 10 link every link associated with some unique value. Now i want that associated value at my controller action and from that action i want to redirect the flow to some other action based on that value.
But the condition is i dont want to display it on url.
How can i acheive this?
I tried ajax.post/#Ajax.ActionLink but doing this will not facilitate redirect to another action.
Is there anything with route i need to do?
View
<ul>#foreach (var item in Model)
{<li>
#Ajax.ActionLink(item.pk_name, "Index","Candidate", new { para1= item.para1 }
, new AjaxOptions { HttpMethod = "POST" })</li>
}</ul>
Action
[HttPost]
public ActionResult(int para1)
{
return RedirectToAction(para1,"anotherController");
}
I am getting value at para1 with ajax post(that is what i primarily needed) but here also want to redirect my application flow base on para1 value which is action name.
Confision : here i am not sure is this is the right way to do this thing. So i am asking you guys should i go for route map of working with ajax post will solve my objective.
If you only need to redirect the user based on what he clicks on without showing him the link, I believe the best way to achieve this is by client-side coding.
In my opinion there is no need to take any request through the server in order to change the page for such a low-complexity redirect.
View
// HTML
// Might be broken, been awhile since I worked with MVC
// Can't really remember if that's how you put variables in HTML
<ul id="button-list">
#foreach(var item in Model)
{
<li class="buttonish" data-para1="#item.para1">#item.pk_name</li>
}
</ul>
// JS
// I wouldn't do any server related work
$('#button-list li.buttonish').click(function(){
// Your controller and action just seem to redirect to another controller and send in the parameter
window.location.href = "/controller/method/" + $(this).data('para1');
});
I think you should make one jQuery function that is call when clicked and pass unique parameter.In that function you can use AJAX and post it on appropriate controller method.
Example:
<input type="button" id="#item.pk_name" onclick="getbuttonvalue(#item.para1);" />
In script
<script type="text/javascript">
$(document).ready(function () {
function getbuttonvalue(para1) {
$.ajax({
cache: false,
type: "POST",
dataType: 'json',
url: "/controller/method/" + para1,
success: function (data) {
}
});
}
});
</script>
Related
I have a asp.net core mvc project.
In my layout file, I want to display the name of the currently logged in user, such that the username is displayed in the header. For this, I want to be able to call a function in my homecontroller that does this.
So, I made a simple function taht looks like this in the home controller:
public String GetLoggedInuser()
{
return "garse garsebro";
}
And then I have tried every method I have been able to find. The first couple of methods here are just function suggested around the web, that are simply not available to me:
#HtmlHelper.Action("GetLoggedInuser");
#Html.RenderAction("GetLoggedInuser");
To name a few. Then there is this one, which I can find:
#Html.ActionLink("GetLoggedInuser")
But for this one, my function "GetLoggedInuser" can't be found anywhere.
How do you, in a razor page call a controller function that you can get returned a string from that function and display it?
If you are using Microsoft.AspNet.Identity then below line will do the work post login.
#Html.ActionLink("Hello " + User.Identity.GetUserName() + "!", "Index", "Manage", routeValues: null, htmlAttributes: new { title = "Manage" })
You can try to use ajax to call action to get the username,and add it to html:
<div id="username">
</div>
#section scripts
{
<script>
$(function () {
$.ajax({
type: "GET",
url: 'GetLoggedInuser',
}).done(function (result) {
$("#username").html(result);
});
})
</script>
}
I want to count how many times my menu items are clicked. for this task, I have a visited cell in my menu table that is retrieved by some models. the menu items are shown on my layout.phtml each specified by their id and I am trying to use ajax for this matter as below:
### menu items in layout.phtml
<li>about</li>
### ajax code
$(document).ready(function(){
$('a#menuItems').click(function () {
var data={};
data.id =$(this).attr("data_id");
$.ajax({
type : 'POST',
url :'../../../module/Application/src/Model/visitCounter.php',
data :data,
success: function(data){
},
error:function(){
}
});
});
});
the visitCounter.php is a service model that gets the variables via POST method do the rest of the work but the problem is how to send this ajax request to the service model page. I wonder if there is a way to achieve that without any controller.
I really appreciate if anyone could help me with this.
Are all button control has to be post method? or we can set it to get method, for example, I want to see an employee details by giving employeeId and click submit button
There is no difference between GET and POST method. They both provide url and parameters. POST method only have some advantages and some restrictions.
If your button is on form (as in classic asp.net), and there is no javascript handler for this button - only POST method can be here.
If you create jquery code (or pure javascript), that overrides default behaviour of the button, you can select what method use: POST or GET
<script>
$('#button').click(function() {
$.ajax({
url: '....',
data: { ....},
type: 'GET', //or 'POST'
success: function(res) {
//all fine
},
error: function() {
//invalid url or server error
}
};
return false; //to avoid default submit
});
</script>
My problem is that the backend server (written in grails) is automatically converting my request URL to be a different URL. Specifically, it is changing it from /UXChallengeAwards/processSelectedNotifications to /UXChallengeAwards/index.
--
In a template gsp file, I have defined a button that makes a jQuery ajax call when clicked on:
<button class="blue-link"
onclick="jQuery.ajax({type:'POST',
data:jQuery(this).parents('.multiSelectForm').serialize(),
url: '/ici/UXChallengeAwards/processSelectedNotifications/${challenge.id}',
success:function(data,textStatus){},
error:function(xhr,textStatus,errorThrown){}
})" >
The method UXChallengeAwardsController.processSelectedNotifications exists. It performs some work and then redirects to another action in the controller. In fact, this used to work. But somehow in the process of adding a second button I made a change which seems to have broken things.
When the button is now clicked, the request URL gets switched to /ici/UXChallengeAwards/index and a 404 is returned because index does not exist as an action in this controller.
I've googled, and the most common answer for when this happens is that a controller must return some results for the view. But I've seen plenty of examples of redirects in controllers, and I do not see what I am doing wrong. (I did try variants of rendering results, but with no success.)
Here is what my controller action looks like:
def processSelectedNotifications = {
def challenge
def checkboxes = params.list('selectCheckbox');
for (checkbox in checkboxes) {
// the checkbox contains the id of a ChallangeAward that should be published
ChallengeAwards challengeAwards = ChallengeAwards.get(checkbox.toInteger())
if (challengeAwards) {
// grab a challenge for use in the redirect, they are all the same
challenge=challengeAwards.challenge
publish(challengeAwards)
}
}
if (challenge) {
redirect action: 'challengeAwardsRemote', id: challenge.id
return
}
// render a failure message if we got here
render messageNS(code:"UX.ChallengeAwards.Publish.failure")
}
I would really appreciate any insights into what might be wrong, or how to go about tackling this issue. I've checked my UrlMappings, and this is the rule that should handle this controller/method request:
"/$controller/$action?/$id?"{ constraints {} }
Thank you very much!
I'm going to go ahead and answer my own question, in case it is helpful for other newbies.
It turns out that I was not getting an automatic redirect. Rather, I had an error in the button setup code, so that grails was using its default link behavior. (Which is to go to the controller that matches the view, and if no action is specified, use the index method.)
The code above was originally created using a remoteSubmit tag, but I found that the generated code did not support handling multiple forms on a single page very well. So, I copied that generated code and then tweaked it to handle the multiple forms. However, I wanted the styling to match up with what was already in place on the page, so I switched it to be a button. That's when things went awry.
Eventually, I ended up specifying an onClick function for the button, and then writing the ajax submit code in javascript. Which turned out to be much simpler.
Here is what the button specification ended up looking like:
<button type="submit" id="notifications" class="blue-link" >
<i class="fa fa-envelope-o"></i>
<g:messageNS
code="UX.DiscussionBoard.ChallengeAward.Button.notify" />
</button>
And the associated JavaScript:
jQuery(document).ready(function() {
var clkBtn = "";
jQuery('button[type="submit"]').click(function(evt) {
clkBtn = evt.target.id;
});
jQuery('.multiSelectForm').submit(function() {
var url = '/ici/UXChallengeAwards/processSelectedNotifications';
if (clkBtn == 'deletes') {
url ='/ici/UXChallengeAwards/processSelectedDeletes';
}
var errorTarget = jQuery(this).parents().find('.recipientMessage').val();
var requestData = jQuery(this).parents('.multiSelectForm').serialize();
var options = {
data : requestData,
type : 'POST',
url : url,
target : '#awardsTab',
error : function(data) {
jQuery('#' + errorTarget).html(data.responseText).show();
},
success : function(data) {
console.log("in success");
}
};
jQuery(this).ajaxSubmit(options);
return false;
});
In my layout page I've got this html:
<div id="ajax-loading" class="global-loading-image" runat="server">
<img src="/content/travelbill/img/small-loading-image.gif"/>
</div>
Which is a loading-symbol. I want it to show when my code is doing its business.
I've read on other threads here on Stackoverflow that if you use runat="server", you are supposed to be able to access the div in the controller. Like so:
ajax-loading.Visible = true;
EditTravelBillViewModel model = this.travelBillService.GetTravelBill(travelBillId);
model.StageOfProcess = (int)TravelBillStageOfProcessEnum.APPROVED;
this.travelBillService.Update(model, true);
ajax-loading.Visible = false;
return RedirectToAction("GetTravelBillsPerCompany");
But I get the error that the loading and the ajax do not exist in the current context. What am I doing wrong?
That was in the old ASP.NET pages. In ASP MVC you don't have a ViewState, isPostBack or runat="server" you can pass variables from the controller to the view using ViewBag and ViewData like:
Controller:
ViewBag.Name = "My Name";
ViewData["Name"] = "My Name";
View:
#ViewBag.Name
#ViewData["Name"]
I don't think you need to do that. You can have a action that do the task that you need to get done and with JavaScript request that action via AJAX. You can then with JavaScript show and hide the loading as you wish:
function LoadAjax(containerId, url, params){
//Set loading in container
$(containerId).html('<img src="loading.gif" alt="loading"/>');
//Do the request
$.ajax({
type: 'POST',
dataType: "html",
url: url,
data: params,
success: function(data){
// show response inside container (removes loading)
$(containerId).html(data);
},
error: function( jqXHR, textStatus, errorThrown){
// show error inside container (removes loading)
$(containerId).html(textStatus);
}
});
}
While the page is loading it will display the loading image. You will need Jquery to use my code. Hope it helps.