MVC3 Nesting Partial Views with a call to Ajax.ActionLink - asp.net-mvc-3

I am aware of the previous two questions which talk about nesting partial views but the solutions don't work for my design (which might not be the best one but I'm unsure how to adapt it).
Background:
I collect questionnaire responses from users and store them on an sql server as xml files.
I have a partial view which loads a table with all the Responses of a given user, this partialview populates the table with things like Response date, link to xml response document, questionnaire name, link to xml questionnaire document (the questionnaire info is pulled from a different table) and an Ajax ActionLink which redirects to action which parses the two relevant xml documents to print out Question and Answer list (i.e. visualise the response to be human readable) inside the second partial view.
The first partial view contains a div underneath the table which I wish to populate onclick of the Ajax.ActionLink with the second partial view.
Problem:
The answers are rendered correctly however the partial view is loaded into a whole new page, without any styling.
The other solutions to this nesting problem use RenderPartial() however I use return PartialView()
Code:
First Partial View:
<table>
<thead>
<tr><th>headers with other info</th>
<th>Display(/th>
<tr>
</thead>
<tbody>
<tr><td>cells with other info</td>
<td>#Ajax.ActionLink("View", "DisplayResponse","HealthStatus", new { respID = item.UniqueID,qVersion=item.QuestionnaireVersion, qname = item.QuestionnaireName }, new AjaxOptions { UpdateTargetId = "responseDisp" })</td>
</tbody>
</table>
<div id="responseDisp"></div> <--- **This is the div I wish to populate, does anyone know why it's not working?**
DisplayResponse Action (without the logic for parsing the xml documents)
public ActionResult DisplayResponse(Guid respID, int qVersion, String qname) {
var allResponses = ZData.Responses;
var response = (from r in allResponses
where r.UniqueID == respID
select r
).First();
//geting an XML questionnaire document
var questionnaireDetails = ZodiacData.Questionnaires;
var questionnaire = (from q in questionnaireDetails
where q.Name == qname && q.Version == qVersion
select q
).First();
//creating XMLDocument to read the questionnaire
XmlDocument xqdoc = new XmlDocument();
xqdoc.LoadXml(questionnaire.Xml);
XmlElement qroot = xqdoc.DocumentElement;
ViewBag.qroot = qroot;
XmlDocument xrdoc = new XmlDocument();
xrdoc.LoadXml(response.Raw);
XmlElement rroot = xrdoc.DocumentElement;
ViewBag.rroot = rroot;
return PartialView("_PrintedResponse");
}
I would be grateful for any help!

In MVC3 the #AJax. helpers are rendering regular form and a tags with some extra data- attributes. To make the magic work some Javascript is needed which will use this generated data- attributes to make the necessary jQuery ajax calls.
These js functions are living in the jquery.unobtrusive-ajax.js so add this line to your layout or view and it should work:
<script src="#Url.Content("~/Scripts/jquery.unobtrusive-ajax.js")"
type="text/javascript"></script>

First, as mentioned above, you must have a reference to the jquery.unobtrusive-ajax.js file as this will get things "wired" up correctly for you.
This answer is also in response to your comment on your question about how you're passing your models to your views. You are actually making things more complicated for yourself by using the ViewBag for your model.
By using the ViewBag for your models, you will have a harder time finding/fixing/resolving issues in typo's as well as the great features of the Razor helpers. The ViewBag is a dynamic object and there are no compile time type checks. You don't need to cast your objects either (less code).
The preferred (and best practice) is to hook things up like so:
1) Your controller contains ViewModels (Strongly Typed) that are passed to the ViewModels
Controller
public ActionResult Something() {
return View();
}
public ActionResult UserView() {
UserViewModel mdoel = new UserViewModel {
Email = "me#somewherecool.com",
FirstName = "Your",
SStatuses = new List<SStatus>{
new SStatus {
ID = 0
}
}
};
return PartialView("_SomethingPartial", mdoel);
}
Index ("Something" view)
#{
ViewBag.Title = "Something";
}
<script src="#Url.Content("~/Scripts/jquery.unobtrusive-ajax.js")" type="text/javascript"></script>
<h2>Something</h2>
#Ajax.ActionLink("Ajax Click", "UserView", new AjaxOptions { UpdateTargetId = "MyDivContainer", InsertionMode = InsertionMode.Replace })
<div id="MyDivContainer">
<!-- my content should be here -->
</div>
Partial View
#model StackModels.UserViewModel
<div class="par">
#Html.LabelFor(m => m.FirstName)
<div class="field">
#Html.TextBoxFor(m => m.FirstName)
#Html.ValidationMessageFor(m => m.FirstName)
</div>
</div>

Related

Ajax Action Link instead of Html Action link in MVC 5

I have many select queries on my Page and few Action links based on them used gets another data tab wise.
Example on stack over flow when we see the profile of the user we see
summary questions answers tags badges etc.
If a user clicks on any one of the tab it hits the entire action and all the other sections of the pages hits the database which results in increase in load time of the page.To improve the performance I thaught to apply ajax,so after searching I got this example.
Partial View.
#model IEnumerable<AJAX.Models.tblStudent>
<table>
#foreach (var item in Model)
{
<tr>
<td>
#Html.DisplayFor(modelItem => item.Age)
</td>
<td>
#Html.DisplayFor(modelItem => item.Name)
</td>
</tr>
}
</table>
<h2>Time is #DateTime.Now</h2>
Controller
public ActionResult Index()
{
return View();
}
public PartialViewResult Twenty()
{
var result = from r in db.tblStudents where r.Age == 20 select r;
return PartialView("_Country", result);
}
public PartialViewResult TwentyFive()
{
var result = db.tblStudents.Where(x => x.Age >= 25);
return PartialView("_Country", result);
}
Index View
#{
ViewBag.Title = "Home Page";
}
#Ajax.ActionLink("Age 20", "Twenty", new AjaxOptions
{
UpdateTargetId = "StudentList",
InsertionMode = InsertionMode.Replace,
HttpMethod = "GET"
})
#Ajax.ActionLink("Age 25", "TwentyFive", new AjaxOptions
{
UpdateTargetId = "StudentList",
InsertionMode = InsertionMode.Replace,
HttpMethod = "GET"
})
<div id="StudentList"></div>
<h2>Time is #DateTime.Now</h2>
#section scripts{
#Scripts.Render("~/Scripts/jquery.unobtrusive-ajax.min.js")
}
This works fine and have added date time to cross check whether the clicked page hits the database leaving the other sections of the page.Would like to know whether its a correct way of using Ajax in MVC. As have Ajax.ActionLink.
Note : this tutorial
it up to your application situation. You can see this post just i found.
In the amount of code you have to write (less with Ajax.ActionLink) and the level of control you need (more with Html.ActionLink and a jquery ajax call).
So it's amount of code vs level of control and functionality needed => up to you to decide which one you need.
Both approaches are perfectly fine. The Ajax.ActionLink uses the jquery.unobtrisuve-ajax script to AJAXify the anchor behind the scenes.
Personally I always use Html.ActionLink + jQuery.
collectted. See this links
link1
link2
link3

partial views to get data and then post the results to save in database

I am very new to MVC, let me try to explain my scenario in plain simple English:
I have an strongly typed mvc form/page (Product.cshtml) with a model, say ProductViewModel.
This page has got two search buttons, one to search and bring the items to be added to the Product and other to bring in the location, most probably partial views.
Now, what I want is that these search results work in ajax form without complete post back, and then the results of these searches (items and location) should be posted back using model binding to the form when user clicks on the submit button.
What could be the best way of achieving this functionality?
Immediate responses will be well appreciated.
I thought, its good to share the complete code for clarity:
I have one form(Service1.chtml) that has a partial view to display users(_TestUser a partial view:read only), then another partial view(_PlotServiceRequestData) that should have a field to search the plot and bring back the details lke its owner name and landuser etc.
Then when I click on submit button of the main form, I should be able to read all data(main form) + new data from _PlotServiceRequestData partial view and save all data to database.
I was trying one more option, that is, to use #Ajax.ActionLink on Service1.cshtml to call the _GetPlotDetails method and then store partial view data in TempData, so that it is available to the form when users clicks on "Submit" button of Service1.cshtml, is this a right approach?, if I use ajax.BeginForm inside partial view then the data is posted to the
Service1 controller method which is actually to save the form data and not to update the partialview and in this method even I am not getting model data of the partial view.
Sevice1.cshtml:
#model ViewModels.TestViewModel
#{
ViewBag.Title =
"Service1";
}
#
using (Html.BeginForm())
{
#Html.LabelFor(m => m.Title)
#Html.EditorFor(m => m.Title)
#Html.Partial(
"_TestUser", Model)
<div id="RequestPlotData">
#Html.Partial(
"_PlotServiceRequestData", Model.requestData)
</div>
<button type="submit">Save Form</button>
}
#section Scripts {
}
_PlotServiceRequestData.cshtml:
===============================
#model ViewModels.PlotServicesRequestDataViewModel
<
div id="RequestPlotData">
#
using (Ajax.BeginForm("_GetPlotDetails", "Test", new AjaxOptions { UpdateTargetId = "RequestPlotData", Url = Url.Action("_GetPlotDetails","Test") }))
{
<h1>Request Details</h1>
 
<div>
#Html.LabelFor(m => m.plotAddress)
#Html.EditorFor(m => m.plotAddress)
<input type="submit" name="submit" value="Ajax Post" />
</div>
<div>
#Html.LabelFor(m => m.LandUser)
#Html.EditorFor(m => m.LandUser)
</div>
<div>
#Html.LabelFor(m => m.OwnerName)
#Html.EditorFor(m => m.OwnerName)
</div>
}
</
div>
CONTROLLER:
==========
using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Web;
using
System.Web.Mvc;
namespace
TestNameSpace
{
public class TestController : Controller
{
//
// GET: /Test/
public ActionResult Service1()
{
Injazat.AM.mServices.
LocalDBEntities context = new Injazat.AM.mServices.LocalDBEntities();
TestViewModel model =
new TestViewModel() { user = context.Users.First(), Title = "Land Setting Out",
requestData =
new PlotServicesRequestDataViewModel() { ServiceNumber ="122345", TransactionDate="10/10/2033" } };
return View(model);
}
[
HttpPost()]
public ActionResult Service1(TestViewModel model)
{
PlotServicesRequestDataViewModel s = (PlotServicesRequestDataViewModel)TempData[
"Data"];
TestViewModel vm =
new TestViewModel() { user = model.user, requestData = s, Title = model.Title };
return View(vm);
 
}
[
HttpGet()]
//public PartialViewResult _GetPlotDetails(string add)
public PartialViewResult _GetPlotDetails(PlotServicesRequestDataViewModel requestData)
{
//PlotServicesRequestDataViewModel requestData = new PlotServicesRequestDataViewModel() { plotAddress = add};
requestData.OwnerName =
"owner";
requestData.LandUser =
"landuser";
TempData[
"Data"] = requestData;
return PartialView("_PlotServiceRequestData", requestData);
}
}
}
You can probably use the jQuery Form plugin for this. This makes the process of posting the data from your form back to the server very easy. The form would post to an action that would return a partial view that you can then push into your UI.
To make this easier, jQuery form actually has a "target" option where it will automatically update with the server response (ie. the partial view returned from your search action).
View
<form id="searchForm" action="#(Url.Action("Search"))" method="POST">
<input name="query" type="text" /> <!-- order use Html.TextBoxFor() here -->
<input type="submit" />
</form>
<div id="result"><!--result here--></div>
Javascript
$('#searchForm').ajaxForm({
target: '#result'
});
Controller
public ActionResult Search(string query)
{
// Do something with query
var model = GetSearchResults(query);
return Partial("SearchResults", model)
}
This should hopefully help you to get on the right track. jQuery Form is a good plugin and is the main thing you should look into for ajaxifying your form posts back to the server. You might also want to look into using jQuery's $.post and $.ajax functions, but these require slightly more work.

Update partial view after edit

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.

ASP.NET MVC3 passing data between primary view and a search view via Ajax link

I have just started learning ASP.NET MVC3.
I have the following scenario. In a create view for a certain model the user can lookup code/description by clicking on a link (rendered with Html.ActionLink helpers). The lookup values are retrieved from lookup tables in a database and presented in a separate view. The two views are handled by two different controllers. When the user selects a lookup value in the latter view that value (code+description) should be copied back to the create view.
How can data be passed between the two views? Is this not possible due to the stateless nature of Http requests?
I tried that with an Ajax link, but it didn't worked out.
code snippet Create view:
<fieldset>
<legend>Z-Info</legend>
<div class="editor-label">
#Html.LabelFor(model => model.ZZL_U_CODE)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.ZZL_U_CODE)
#Html.ValidationMessageFor(model => model.ZZL_U_CODE)
</div>
<div class="editor-label">
#Ajax.ActionLink("Land code test", "Index", "Domein", new {name = "lan" },
new AjaxOptions {
HttpMethod = "Get",
Url = Url.Action("Index", "Domein", new {name = "lan" }),
OnBegin = "OnBegin",
OnSuccess = "InsertCodeNaam",
OnFailure = "OnFailure",
OnComplete = "OnComplete"
})
</div>
When the user select a code/description the following Select action is called which returns Json data back.
Select action:
public class DomeinController : Controller
{
private ZZLEntities db = new ZZLEntities();
//
// GET: /Domein/
public ViewResult Index(string name)
{
DomeinViewModel model = DomeinRepositry.GetAll(name);
return View(model);
}
GET: /Domein/Select/5
public JsonResult Select(int id, string naam)
{
return Json(new DomCodeNaam { codeValue = id, naamValue = naam }, JsonRequestBehavior.AllowGet);
}
Are there other solutions possible? Can partial views be an option?
Well you have two options:
Just post back lookup values and then internally redirect to the
first ("create") view, but this time passing (internally) the values
chosen by user so the view can be rendered with chosen values. Maybe
not fancy but very easy to implement. You will loose data that user have already entered into first form though, unless you post it too or you make this a 2 step process.
If you want to use Ajax, you need update appropriate parts of the
form in the first "create" view on the client side, depending on the
actions of user (i.e. what lookup values they have chosen).
I am however a bit confused with what you exactly mean by "separate view"

MVC3 Helper DisplayFor Model

I've got a view that displays a list of items. Rather than display items in a grid, I'd like to display 4 items per page, each with an image and multiple properties, displayed in a unique layout.
So, I'd like a foreach to iterate through the items, and each item to get displayed in a div. I could put all the code in the loop, but I'd like to have a custom html helper extension to do this.
I came up with this,
public static MvcHtmlString DisplayViewerFor(this HtmlHelper helper, TestModel model, bool rightAligned = true) {
if (model == null) {
model = new TestModel();
}
var outterDiv = new TagBuilder("div");
outterDiv.AddCssClass(rightAligned ? "item-display-right" : "item-display");
var image = new TagBuilder("image");
image.Attributes.Add("src", "Item/GetImage/" + model.ItemName);
image.Attributes.Add("height", "150");
var editorLabel = new TagBuilder("div");
editorLabel.AddCssClass("editor-label");
//LOOKING TO ADD CODE LIKE THIS HERE
var labelContent= html.LabelFor({my model property here})
editorLabel.InnerHtml += labelContent;
//END OF ADD
return new MvcHtmlString(outterDiv.ToString(TagRenderMode.EndTag));
}
In my method above, I need to display a few more values, and I would like to use the Html.LabelFor and Html.DisplayFor helpers, but the methods aren't available and I'm not sure what to pass to them if they were.
I'm not sure if this is possible or not, but I thought I would ask.
EDIT
I'm trying to use the html.LabelFor. See my code where I have updated it above, adding to it these two lines.
var labelContent= html.LabelFor({my model property here})
editorLabel.InnerHtml += labelContent;
You can see the code above.
EDIT 2
Here is the planned use for this Helper with dummied down view.
#model TestItemDisplayList
#{
ViewBag.Title = "Items";
Layout = "~/Views/Shared/_Layout.cshtml";
}
#foreach(var item in #model.Items){
#Html.DisplayViewerFor(item)
}
You can use the Html.DisplayFor method to render a DisplayTemplate. One of the over loads for the method is to specify a template to use. You can modify your page code to read:
Page:
#model TestItemDisplayList
#{ ViewBag.Title = "Items"; Layout = "~/Views/Shared/_Layout.cshtml"; }
#Html.DisplayFor(model => Model,"TestItemDisplayList")
Display Template for TestItemDisplayList
#model TestItemDisplayList
#* You could limit this loop to the first 4 items *#
#foreach(var item in model.Items){ #Html.DisplayFor(item => item) }
Display Template for TestModel
#model TestModel
<div class="item-display">
<img src="#Url.Action("GetImage", "Image", new { id = Model.ItemName})" height="150"/>
<div class="editor-label">#Html.LabelFor(model => model.PropertyHere)</div>
</div>
I assume that your URL for the image used the default route of {controller}/{action}/{id} so I used the Url.Action and specified your ID.
You could also get away witout using a DisplayTemplate for "TestItemDisplayList" and moving that code in to your page but I wasn't clear if you wanted to add logic in that to limit the number of pages.

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