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Using C# MVC multiple dynamic models in View

I have a View with several form that I'm using for searching and displaying the results as partial View in like SearchByNumber, SearchByVehicle, etc.
I'm trying to load view and execute search for different forms by posting link with querystring like www.example.com/Search?number=101010 from different view.
For the first form, SearchByNumber I only have one parameter, string number and i'm returning view with dynamic Model and its working like it should, but I only manage to make search for this form.
Here is my controller:
public ActionResult Index(string number)
{
return View(model: number);
}
and in the View I have:
<form id="searchbynumberform">
Search By Any Number:
<div class="input-group input-group-sm">
<input type="text" class="form-control" name="number" id="number" value="#Model">
<span class="input-group-btn">
<button class="btn btn-primary" type="button" name="numbersearch" id="numbersearch" disabled>
Search
</button>
</span>
</div>
</form>
My Question is, if anyone can help me, How to perform search let's say on the second form where I have int type and string name parameters?
Thank You in advance...

At the moment your Model is only the search string that was entered, which seems rather incomplete. It would make a lot more sense if the Model also contained the actual search results, which after all is what the user wants to see. And then you can also add the other search properties.
The MVC approach for this is to create a (View)Model class, somewhere in your project, something like this:
public class SearchModel
{
public string Number { get; set; }
public int? Type { get; set; }
public string Name { get; set; }
public List<SearchResult> SearchResults { get; set; }
}
And then use it e.g. like this:
public ActionResult Index(string number)
{
var model = new SearchModel
{
Number = number,
SearchResults = GetByNumber(number)
};
return View(model);
}
public ActionResult IndexOther(int type, int name)
{
var model = new SearchModel
{
Type = type,
Name = name,
SearchResults = GetByTypeAndName(type, name)
};
return View(model);
}
And in your Index.cshtml:
#model SearchModel
#* You can now use Model.Number, Model.Type, Model.Name and Model.SearchResults. *#

Use javascript variable in c#

Is it possible to use js variables in c# code?
This is my model:
public class Department
{
public int Id { get; set; }
public string Name { get; set; }
public int? ParentId { get; set; }
public virtual ICollection<Department> Parent { get; set; }
}
And this is my cshtml:
#model List<inspinia.models.Department>
<select name="DepartmentId" class="form-control" id="Department">
#foreach (var item in Model)
{
<option value="#item.Id">#item.Name</option>
}
</select>
<script>
$(document).ready(function () {
$("#Department").on("change", function () {
var DepartmentId = $('option:selected', this).attr('value');
//the problem in the next line.
#foreach(var item in Model.Where(x=>x.ParentId==#:DepartmentId))
{
#:alert(#item.id)
}
});
});
</script>
Well I am having error when I use
Model.Where(x=>x.ParentId==#:JAVASCRIPT VARIABLE).
Is there any way to do it or I definitely have to use ajax ?

No you can't, because the javascript code's is for clientside and razor in serverside.
You have two solutions:
1- Put all departement in list(<ul>) and use JQuery for get your data on change
2- Use jquery ajax and get data directly from controller(create controller for that)

Order dropdown list in ASP.Net mvc 5 application

I have a dropdown and I want it to appear in a particular order where dropdown option header should come before footer. but I am not able to do so.
Helper
public static readonly string HEADER_ID = "-1000";
public static readonly string FOOTER_ID = "-1001";
CSHTML
<select id="simTextEditorSelection" onchange="ShowTextEditorBasedOnSelection();" style="float:right;">
#foreach (PageInfoMV anItemForEditor in Model.ItemContents)
{
<option value="#anItemForEditor.ItemId">#anItemForEditor.ItemDisplayText</option>
}
UI
P.S: I don't want to change the enum values of Header and footer. Please guide me.
My Attempt:
#foreach (PageInfoMV anItemForEditor in Model.ItemContents.OrderByDescending(x=>x.Id))
But it created some other issues. So, I want to avoid it.

Assume you have this class:
public class MyClass
{
public int Id { get; set; }
public int Name { get; set; }
}
In the Action you can create a SelectList from any list as followed:
public ActionResult Create()
{
var list = db.MyClass.ToList(); //or an other way to get the list of items
//you can add som more items to the list:
list.Add(new MyClass { Id=-1000, Name="Some Name" });
ViewBag.Selectlist = new SelectList(list.OrderByDescending(x=>x.Id), "Id", "Name");
return View();
}
In the View:
#{
var optionList = ViewBag.Selectlist as SelectList;
}
#Html.DropDownListFor(model => model.someProperty, optionlist, "- Select an option -")

Change your cshtml to this and you should have your wish
<select id="simTextEditorSelection" onchange="ShowTextEditorBasedOnSelection();" style="float:right;">
#foreach (PageInfoMV anItemForEditor in Model.ItemContents.OrderByDescending())
{
<option value="#anItemForEditor.ItemId">#anItemForEditor.ItemDisplayText</option>
}

How to get collection of IDs, and Selected Dropdown values passed from View's table to Controller?

So I have a checklist/task manager kind of application that basically pulls a bunch of string values from a database using a model, and then pipes it out to a view which uses a expand/collapse patterned table. The only element that an end user modifiers beyond the expand/collapse state is the dopdown list for the project status.
Rather than an update button for each row, the customer wants basically a single button on the bottom of the page which updates all the rows the user changed. So my goal is to try and create said button. As far as the View code snippet, I've tried messing around with Html.BeginForm, but haven't been able to figure out how to also capture the multiple item IDs as well:
#using (Html.BeginForm("UpdateDB", "Checklist", new { id = model.ID })) // model does not exist in this current context
{
<table id="checklistGrid" class="table table-bordered table-striped grid">
<tr>
<th>#Html.DisplayNameFor(model => model.ww)</th>
.... // more table headers
</tr>
#foreach (var group in Model.GroupBy(x => x.ww))
{
<tr class="group-header">
<td colspan="12">
<span class="h2">#group.Key</span>
</td>
</tr>
foreach (var dept in group.GroupBy(x => x.dept))
{
<tr class="dept-header">
<td colspan="12">
<span class="h4">#dept.Key</span>
</td>
</tr>
foreach (var item in dept)
{
<tr class="row-header">
<td> #Html.HiddenFor(modelItem => item.ID)</td>
<td>#Html.DisplayFor(modelItem => item.ww)</td>
.... // more table columns
<td>
#{
List<string> ddl = new List<string> { "Done", "Not Done", "N/A" };
SelectList sl = new SelectList(ddl, item.status);
#Html.DropDownList("newStatus", sl); // Added
}
</td>
<td>#Html.DisplayFor(modelItem => item.applied_by)</td>
<td>
#{
DateTime tmp;
//Check if not null, if not null convert to specified time zone
if (DateTime.TryParse(item.timestamp.ToString(), out tmp))
{
tmp = item.timestamp ?? DateTime.MinValue;
string zoneName = "India Standard Time";
var abbrZoneName = TimeZoneNames.TimeZoneNames.GetAbbreviationsForTimeZone(zoneName, "en-US");
TimeZoneInfo zoneInfo = TimeZoneInfo.FindSystemTimeZoneById(zoneName);
DateTime istTime = TimeZoneInfo.ConvertTimeFromUtc(tmp, zoneInfo);
#Html.Raw(istTime.ToString() + " (" + abbrZoneName.Generic + ")");
}
else
{
#Html.DisplayFor(modelItem => item.timestamp);
}
}
</td>
</tr>
}
}
}
</table>
<p><input type="submit" value="Save Changes" /></p>
}
<script type="text/javascript">
// Hide/Show Dept's Data on Click
$(function () {
$('.dept-header').click(function () {
$(this).nextUntil('.dept-header, .group-header').toggle();
});
});
$(function () {
$('.group-header').click(function () {
var elm = $(this);
if (elm.next().is(":visible")) {
elm.nextUntil('.group-header').hide();
} else {
elm.nextUntil('.group-header', '.dept-header').show();
}
});
});
</script>
I suspect the easier (and computationally quicker way) would to be to use Jquery + Ajax && Json attached to a button onclick at the bottom to send the collection of id and selected dropdown text to an ActionResult in the Controller (to then update the database) and then refresh on the success Ajax callback. However my Jquery/Javascript foo is weak and given the clickable 'header' type rows that expand/collapse the data rows, it's not clear to me how I would efficiently use Jquery to navigate and grab the item.IDand the selected dropdown text from each row, bundle it up, and pipe to the desired ActionResult.
So how do I send both the id and selected dropdown text of all the rows to an arbitrary ActionResult be it with Html.BeginForm or Jquery et al?
EDIT: Model for reference:
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Data.Entity;
using System.Linq;
using System.Web;
namespace TaskTracker.Models
{
[Table("some_update")]
public class TaskInfo
{
public int ID { get; set; }
[Display(Name = "WW")]
public int ww { get; set; }
[Display(Name = "File Name")]
public string filename { get; set; }
[Display(Name = "Dept")]
public string hsd_unit { get; set; }
[Display(Name = "Owner")]
public string owner { get; set; }
[Display(Name = "Manager")]
public string manager { get; set; }
[Display(Name = "Project")]
public string project { get; set; }
[Display(Name = "Status")]
public string status { get; set; }
[Display(Name = "Last Applied By")]
public string applied_by { get; set; }
[Display(Name = "Last Updated Time Stamp")]
public DateTime? timestamp { get; set; }
}
public class TaskInfoDBContext : DbContext
{
public DbSet<TaskInfo> TaskInfoSet { get; set; }
}
}

You have a number of problems with you view including your form controls have duplicate name attributes meaning you cannot bind to you model when you submit, duplicate id attributes which is invalid html, and your creating a dropdownist with a name that is not even a property of your model. In addition your use of queries in the view code is not good practice. All of this can be solved by using view models and generating your html correctly using for loops (not foreach loops) or a custom EditorTemplate. However, since you have indicated a preference for ajax, you can post the data by making the following changes to the view
Replace the following HtmlHelper methods
#Html.HiddenFor(modelItem => item.ID)
#Html.DropDownList("newStatus", sl)
with
#Html.HiddenFor(modelItem => item.ID, new { id = "", #class = "id" })
#Html.DropDownList("Status", sl, new { id = "", #class = "status" })
This will remove the invalid id attributes and add class names for selection. Then replace the submit button with
<button type="button" id="save">Save Changes</button>
And add the following script
var rows = $('.row-header'); // store all the table rows containing the form controls
$('#save').click(function() {
// Build an array of the values to post back
var data = [];
$.each(rows, function() {
data.push({id: $(this).find('.id').val(), status: $(this).find('.status').val() });
});
$.ajax({
url: '#Url.Action("UpdateDB", "Checklist")',
type: "POST",
data: JSON.stringify({ model: data },
traditional: true,
contentType: "application/json; charset=utf-8",
success: function(data) {
// do something?
}
})
});
Then create a model to accept the values
public class TaskInfoUpdate
{
public int ID { get; set; }
public string Status { get; set; }
}
And modify you POST method to
[HttpPost]
public ActionResult UpdateDB(IEnumerable<TaskInfoUpdate> model)
Side note: Its not clear what you mean by "and then refresh on the success Ajax callback" (what is there to refresh?). I suggest that the method return either return Json(true); if the items were successfully saved, or return Json(null); (or a HttpStatusCodeResult) if not so that you can notify the user as appropriate.

Repeated UI functionality in MVC

I have a few screens which have duplicated complex UI functionality. i.e. Drop down A triggers a JSON call to my Controller, which populates the values in drop down B and C, based on the value selected in drop down A.
So, on the screens, I have drop down A, and then under that, B and C.
This is duplicated UI code on 3 screens (Growing to 5 soon). But they make use of the same Controller call to do the population.
Is there a way I can create a partial view, which I can place in a form (Form is submitted via a normal Form post), and the values of the selections can then be passed back with the values of all the other form items that are submitted? The partial view would have the markup, as well as the Javascript I use to call the controller?
I'm not sure if I can then include the values within the partial view, in the Form post, and have them available to the controller.
I have started investigating EditorTemplates, but all I have is the Model for the template:
public class AccountCombinationTemplateModel
{
public int SourceEntityId { get; set; }
public int DestinationEntityId { get; set; }
public int EntityEventTypeId { get; set; }
public List<SelectListItem> Accounts { get; set; }
public List<SelectListItem> ThirdParties { get; set; }
}
and an empty AccountCombinationTemplate.cshtml file. Not sure if I need a controller etc.
My parent model (The main model I use for the view) now references the new model created above:
public AccountCombinationTemplateModel AccountModel { get; set; }
So all the properties that were in the parent model, have been moved into the AccountCombinationTemplateModel.
On my View, I now have:
#Html.EditorForModel(Model.Details.AccountModel)
That is on the view, where I want my Drop downs to appear.
I created a new empty view called AccountCombinationTemplate.cshtml in my View\Shared\EditorTemplates folder.
That view looks like this:
#model BasicFinanceUI.Models.AccountCombinationTemplateModel
<div class="row">
<div class="form-group col-xs-12 col-lg-3 divAccounts">
#Html.LabelFor(x => x.EntityEventTypeId)
#Html.DropDownListFor(x => x.EntityEventTypeId, Model.EntityEventTypes, new { #class = "EntityEventTypeId form-control", #onchange = "changeDisplay(this)" })
</div>
<div class="form-group col-xs-12 col-lg-5 divAccounts">
#Html.LabelFor(x => x.SourceEntityId)
#Html.DropDownListFor(x => x.SourceEntityId, Model.Sources, new { #class = "SourceEntityId form-control" })
</div>
<div class="form-group col-xs-12 col-lg-5 divAccounts">
#Html.LabelFor(x => x.DestinationEntityId)
#Html.DropDownListFor(x => x.DestinationEntityId, Model.Destinations, new { #class = "DestinationEntityId form-control" })
</div>
</div>
I my existing controller, I have added the new EditorModel above as a property of the main model for the view, and populated it and it's properties.
But when I run the screen, where I have the #Html.Edit..., nothing is rendered. No errors either. It;s as if it can't find the View?