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Well done!
You have completed ASP.NET MVC Forms!
You have completed ASP.NET MVC Forms!
Preview
Now that we’ve got our project setup, let’s review the provided files.
Additional Learning
For more information about nullable types in C# and .NET, see this page on MSDN.
See this page for more information about HTTP status codes.
Microsoft’s ASP.NET website has a great walkthrough on how to use layout pages to create a consistent look and feel for your websites.
If you want to learn more about the great Bootstrap CSS framework, don’t miss these Treehouse resources.
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CTRL+M CTRL+M- Toggles outlining for the current section
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Let's start with reviewing our
project files by taking a look
0:00
at the EntriesController class.
0:03
I'll collapse the solution explorer
window to make more room for the editor.
0:05
The EntriesController constructor
is instantiating an instance of
0:08
the entriesRepository class,
0:12
which we'll be using throughout
this course to manage our data.
0:13
We'll take a look at our
repositories in just a bit.
0:17
Our controller contains an index
action method for our list page.
0:20
Shortly, we'll take a closer look at
this method and its associated view.
0:25
We also have add,
0:29
edit, And delete action methods.
0:32
We'll be making changes to these methods
as we add functionality to our web app.
0:39
Notice how the edit and
0:44
delete action methods both accept
an ID parameter of type int.
0:45
The question mark following the data type
indicates that the data type is nullable.
0:49
Meaning that the ID parameter
can have a value of null.
0:56
For more information about nullable types,
see the teacher's notes.
1:00
Making our ID parameter nullable,
allows the entries/edit and
1:05
entries/delete pass to be successfully
routed to our action methods.
1:09
If we didn't allow nulls, MVC would throw a routing error.
1:15
Instead, we're checking to see
if the ID parameter is null and
1:19
returning a 400
BadRequest HTTPStatusCode in
1:23
order to reject requests that
don't include an ID parameter.
1:28
This is in contrast to returning
a 404 Not Found HTTPStatusCode
1:32
when an entry can't be found for
the provided ID parameter value.
1:38
We'll extend these action methods to
do exactly that in a later video.
1:42
See the teachers notes for
more information about HTTPStatusCodes.
1:47
Next, let's take a look at our views.
1:52
We have four views, one each for
our action methods Add [SOUND],
1:55
Index [SOUND], Edit [SOUND],
and Delete [SOUND].
2:00
These action method and
view names map to our crowd action.
2:03
Ad maps to create, index maps to read,
2:08
edit maps to update, and
delete maps to well, delete.
2:13
Here's our entries index view.
2:19
We'll take a closer look at
this view in the next video.
2:21
The edit and
delete views are just stubs at this point.
2:24
In the ad view, contains a basic HTML
only version of our add entry form.
2:29
We'll be updating all of these
views throughout this course.
2:35
In the shared folder is our layout page,
2:38
which provides the overall look and
feel for each of our pages.
2:42
For more information about MVC layout
pages, see the teacher's notes.
2:47
Let's finish up our review by taking
a look at our project's models and
2:51
repositories.
2:55
The models are located
in the Models folder.
2:56
We have two models, activity and entry.
2:59
The activity model contains an activity
type enum that defines the list of
3:04
available activities.
3:08
Further down in the class,
we can see its properties.
3:10
Id and Name.
3:15
The entry model also
contains an enumeration,
3:18
intensity level which defines
the available intensity levels.
3:21
Low, medium and high.
3:26
The entry model has more properties
than the activity model.
3:29
ID, date, ActivityId,
3:37
Activity, Duration,
3:42
Intensity, Exclude and Notes.
3:47
You might wonder why we need two
properties for the activity.
3:53
An activity ID property of type int and
an activity property of type activity.
3:57
We'll be taking a closer look at
these properties in later videos.
4:02
Now let's look at the repositories
in the Data folder.
4:06
We have one for entries,
and another for activities.
4:10
The activities repository class contains
just a single method, get activities.
4:17
The entries repository class
is a little more involved.
4:24
Let's toggle all of the class outlining
by pressing Ctrl+M followed by Ctrl+L.
4:27
Then we can hold down the Ctrl key and
4:34
press M twice to expand the namespace and
class sections.
4:36
Now we can see that the class
contains the following methods.
4:42
GetEntries, GetEntry.
4:47
AddEntry, UpdateEntry and DeleteEntry.
4:53
Both of these repositories use
the collections that are defined
5:00
in the data class to provide the data for
our web app.
5:04
As mentioned earlier, data would typically
be persisted using a database or
5:07
an API given that the code in
the repository in data classes
5:12
should be thought of as a work
around instead of a best practice.
5:17
If you're using GitHub,
let's commit our project files.
5:21
Switch back to the Team Explorer panel.
5:24
Then under the Project section,
click the Changes button.
5:27
Under the Changes section, we can see a
list of the files that we've added to our
5:30
repo, I'll
5:34
enter a commit message
of added project files.
5:40
And then click the down arrow
on the Commit All button and
5:46
select the Commit All and Push option.
5:49
This will commit and
push our changes to the remote server.
5:55
Next up, we'll take a closer look at our
entries list page controller and view.
5:59
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