Creating dynamic view from a controller in MVC - asp.net-mvc-4

Question

I have this controller and view:
public ActionResult DynamicView()
{
return View();
}
_
#model ChatProj.Models.GroupNumber
#{
ViewBag.Title = "DynamicView";
}
<h2>DynamicView</h2>
<fieldset>
<legend>Create a room</legend>
<div class="editor-label">
#Html.LabelFor(model => model.GroupId)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.GroupId)
#Html.ValidationMessageFor(model => model.GroupId)
</div>
<input type="submit" value="DynamicView" />
</fieldset>
This is what it looks like on the page.
That's fine and dandy, but I would like to pass that number to a controller, which then passes it to a view. I would like to pass it to this view:
#using PagedList.Mvc;
#using ChatProj.App_Code;
<link href="~/Content/PagedList.css" rel="stylesheet" type="text/css" />
#{
ViewBag.Title = "Grupprum 1";
}
<h2>Grupprum 1</h2>
<style>
ul {list-style-type:circle;}
</style>
<div class="container">
<div class="nano chat">
<div class="content">
<ul id="discussion">
</ul>
</div>
</div>
<input type="text" id="message" />
<input type="button" id="sendmessage" value="Send" disabled="disabled" />
<input type="hidden" id="displayname" />
</div>
#section scripts {
<!--Script references. -->
<!--The jQuery library is required and is referenced by default in _Layout.cshtml. -->
<!--Reference the SignalR library. -->
<script src="~/Scripts/jquery.signalR-1.1.3.js"></script>
<script src="~/Scripts/jquery.nanoscroller.min.js"></script>
<!--Reference the autogenerated SignalR hub script. -->
<script src="~/signalr/hubs"></script>
<!--SignalR script to update the chat page and send messages.-->
<script>
$(function () {
// Reference the auto-generated proxy for the hub.
var chat = $.connection.chatHub;
$(".nano").nanoScroller();
// Create a function that the hub can call back to display messages.
chat.client.addNewMessageToPage = function (name, message) {
// Add the message to the page.
$('#discussion').append('<li><strong>' + htmlEncode(name)
+ '</strong>: ' + htmlEncode(message) + '</li>');
};
$(document).ready(function () {
$("#sendmessage").removeAttr("disabled");
$('#message').keypress(function (e) {
if (e.keyCode == 13)
$('#sendmessage').click();
});
});
// Get the user name and store it to prepend to messages.
// Set initial focus to message input box.
$('#message').focus();
$.connection.hub.qs = { "room": "Grupprum 1" };
// Start the connection.
$.connection.hub.start().done(function () {
$('#sendmessage').click(function () {
// Call the Send method on the hub.
chat.server.send($('#message').val());
// Clear text box and reset focus for next comment.
$('#message').val('').focus();
});
});
});
// This optional function html-encodes messages for display in the page.
function htmlEncode(value) {
var encodedValue = $('<div />').text(value).html();
return encodedValue;
}
</script>
}
Specifically I would want it at $.connection.hub.qs = { "room": "Grupprum 1" }; to replace the 1.
So I've created these controllers which are faulty and incomplete:
[HttpPost]
public ActionResult DynamicView(int? roomNumber)
{
return View(GroupRoom(roomNumber));
}
public ActionResult GroupRoom(int roomNumber)
{
return View();
}
Does anyone know how I should change my controllers and views so that I'm able to insert a number in my DynamicGroup view, and get a view back based on the inserted number and the lastly mentioned view?

Answer 1

You could pass the number from the model to the new action just how #Matt Bodily did. But if you want to use a different model on your new view, you can use the below code instead:
public ActionResult GroupRoom(int roomNumber)
{
ViewBag.RoomNumber = roomNumber;
return View();
}
This way, you can use a different model for this page, if you want to. To display this ViewBag on the page, use this code anywhere you want:
#ViewBag.RoomNumber
I hope that helps you out.

Answer 2

How you have it set up the Model.GroupID will be set on the first view so change your controller like this
[HttpPost]
public ActionResult DynamicView(GroupNumber model)
{
//model.GroupId here will be what was selected on the first view
return RedirectToAction("GroupRoom", "Controller", new { GroupId = model.GroupId });
}
public ActionResult GroupRoom(int GroupId)
{
var model = //build your model based on the selected GroupId
return View(model);
}