I'm working through the nerddinner MVC tutorial, but making slight changes for it to fit my project.I have a FormViewModel which works fine in creating a SelectList for the Edit View, however it doesn't work for the Create view as the selecteditem is null;
var btypes = from BikeTypeID
in db.BikeTypes
select BikeTypeID;
[code]...
When I first heard about ASP.NET MVC, I was thinking that would mean applications with three parts: model, view, and controller.
Then I read NerdDinner and learned the ways of repositories and view-models. Next, I read this tutorial and soon became sold on the virtues of a service layer. Finally, I read the Fluent Validation documentation, and I'll be darned if I didn't end up writing a bunch of validators.
Tonight, I took a step back and thought about what had become of my project. It seems to have become the victim of the design pattern equivalent of "feature creep". Somehow I'd gone from Model-View-Controller to Model-Repository-Service-Validator-View-ViewModel-Controller. You want loosely coupled and DRY? We got your loosely coupled and DRY right here! But I'm wondering if this could be a case of too much of a good thing.
Am I right to be concerned? Or is this actually not as crazy as it sounds? On one hand, it seems crazy to have so many layers. On the other hand, every layer has a clearly defined purpose that makes sense to me. Have your MVC applications turned into MRSVVVMC apps too? If not, what do they look like? Where's that right balance?
I have a table in my database with a one to many relationship to another table, which has a relationship to a third table:
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This seems to work fine. My question to you good folks: Is there a correct way to do this? I tried following the making a custom model binder per the blog link I posted above but it didn't work (there was an issue with reflection, the code expected certain properties to exist) and I needed to get something going ASAP. PS - I tried to cleanup the code to hide specific information, so beware I may have hosed something up.
I have a ASP.NET MVC view that displays a single ServiceProvider object. In this view there is a selectlist that lists one or more ServiceProviderGroup objects and uses the Id property for the value and the Name property for the text. In this list I also show a entry with a value of -1 and text of "No Provider". When the Edit[Post] method is called the Id value from the select list maps to a nullable property (GroupId) on a ServiceProvider object. When a value other the -1 is selected from the list it works as expected. But, when the value is -1, I want a NULL reference to be applied to the GroupId property during the UpdateModel call. Within the Edit method, prior to calling UpdateModel, I have tried replacing the entry within the Controller.ValueProvider with a null reference and adding a ValueProviderResult which contains a null reference, but the UpdateModel always has an issue (InvalidOperationException).
View 3 RepliesI am having a trouble while trying to create an entity with a custom view modeled create form. Below is my custom view model for Category Creation form.
[code]....
When i click on save button, it doesnt bind the category for me because of i am using custom view model and strongly typed html helpers like that
<%=Html.TextBoxFor(model => Model.Category.OrderNo) %>
My html source looks like this
[code]....
How can i fix this?
We have an ASP.NET MVC site that uses Entity Framework abstractions with Repository and UnitOfWork patterns. What I'm wondering is how others have implemented navigation of complex object graphs with these patterns. Let me give an example from one of our controllers:
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It's a registration process and pretty much everything hangs off the POCO class Person. In this case we're caching the person through the registration process. I've now started implementing the latter part of the registration process which requires access to data deeper in the object graph. Specifically DPA data which hangs off Legal inside Country.
The code above is just mapping out the model information into a simpler format for the ViewModel. My question is do you consider this fairly deep navigation of the graph good practice or would you abstract out the retrieval of the objects further down the graph into repositories?
Does anyone have a working pattern for converting a GET-POST-GET pattern to asny?
I'm encountering the following issues:
1. You cannot mix Sync and Async action methods SubmitForm(), SubmitFormAsync(bool? confirm), SubmitFormCompleted() ... (because the resolver gets all confused ... it doesn't use the HTTP verb to decide who to target. BTW: I think that's poor design, or a bug)
2. Renaming the get method name to something else eg: SubmitFormConfirmation(), SubmitFormAsync(bool? confirm), SubmitFormCompleted() would be very awkward if it works ... because you have to doctor the <form markup to specify an action name.
3. You cannot give them all async names SubmitFormAsync(), SubmitFormAsync(bool? confirm), submitFormCompleted(), because the call just keeps malfunctioning. It sometime even behaves as if you are requesting a delete of something.
Can someone give an insight from an actually working sample.
How can I create a regular express pattern which has 30 charater fixed length, but the charater in the pattern could be less than 30 and pad with spaces.For example, I want to enter these kind of values:
View 2 RepliesNow that the next version of ASP.NET MVC is being prototyped and previewed (ASP.NET MVC 3 Preview 1 came out a couple of weeks ago), I wonder if we should call the attention of the Core Dev team (S Hanselman, Phil Haack and all) to this "feature."there a easy/non tacky way of associating subdomains → areas?Something like:
[URL]Also, whats the best accepted design pattern in implementing PRG pattern in ASP.NET MVC? I guess it should also get some official loving in MVC 3.
I'm a newbie into MVC and I am like only on chapter 7 in ASP.NET MVC Unleashed so be easy with m
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how do I tell Create Button to send to an Action named Create and to Edit to an Action named Edit on the same form?I guess it is possible on ASP.NET MVC if it is possible on ASP.NET Webforms
I know that you can't edit incoming cookies. I have a cookie that I just need to read..nothing more but I have a need to remove some characters from its value so that I can parse it. How can I do this? I don't need to send the modified new cookie back in the response, it's just for my server-side consumption and then that's it.
Updated:
figured it out:
HttpCookie facebookAuthCookie = HttpContext.Current.Request.Cookies[facebookCookieName];
string cleanValue = facebookAuthCookie.Value.Replace(""", string.Empty);
HttpCookie cleanedFacebookAuthCookie = new HttpCookie("cleanedFacebookCookie", cleanValue);
I got the followig task.Create a website (Profile.aspx) in which the User can create and edit his profile.Well, I know how to write in a database, but how do I get the UserName oder the UserID to make a PrimaryKey?If the user is logged in a session will be started. In this session is the UserName but I don't know how to read out the UserName with ASP.NET to make an PrimaryKey. If I would try to read out the UserName with C# I must save it in an variable and give it somehow to my form.
asp:sqldatasource id="SqlDataSource1" runat="server"
connectionstring="<%$
ConnectionStrings:MyConnectionString %>"[code]....
I'm currently writing a game review site in MVC 2. I'm having some problems both figuring out exactly what to use as my view models and how to display checkboxes in my form for a many-to-many relationship. My main models generated by EF4.
The biggest problem at the moment is trying to figure out how to create checkboxes for a game's platforms. There's a many-to-many relationship between games and platforms - each game can be available on a number of platforms (PS3, XBox 360, etc.), and each platform has a library of games. In my Edit view, I need to list all of the platforms and have the ones the current game is listed for checked. I have the following view model:
[Code]....
So, I need to list all of the view model's Platforms while putting a check mark in the GameData's platforms.
I am working in a .net C# .In my application I have to create in theIIS>local computer>Web Sites>Default Web Site - virtual directory and also I want to be able tochange properties of this vitrual directory (All process of creation virtual directory in the IIS I want to do programmaticaly).
I had make a program in C# for create a Virtual Directory.But i didn't able to edit its property..
After this i have to implement all this program in .Net Remoting 0r WCF.
how can i create edit and delete html page with all setting with code.
I will use editor ajax control for this .this method will be fast and reliable for me.or there is another way.
i want to save,edit and delete editor.content with MS SQL database
i have a table with three columns as ID,baseid,name.
[code]...
i will display all baseid 0 values in first dropdownlist1
based on the selection corresponding values will be shown in dropdownlist2 (like when desc1 is selected desc1212 &desc2323 will be shown in dropdownlist2. now i want to edit/add details to the table from aspx page.
I am creating a web application using ASP.Net 3.5 MVC , I have created Edit and Create views, one of the fields is Image URL,How can I upload a image in a web server folder and save the name of image in database (as a part of Edit and Create view)?
I have added following code in Create/Edit view:
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Does anyone have a Tabular create and details MVC 2 Template that i can pop into my project and use, instead of the ugly linear templates that come out of the box in MVC?
Are there free MVC view templates anywhere on the internet?
i created a create view for an entity in my database using MVC 2 in VS2010.I noticed that the auto generated code used HTML.TextBoxFor for ALL the columns..this isnt very optimal.Is there a way to get it to use Html.DisplayFor ? I have a bit column that the auto generated code used a textbox for..How can change this using UIHint.
View 2 Repliesi am using VS 2008 (asp.net with c#) and SQL Server 2005....
subject table:
create table subject
(subid varchar(10),
[Code]....
so i want to display each subjects with its marks in column wise.....
NOTE:
Subjects are not fixed for each semester (in subject table) thats why i want to create/edit/delete table dynamically within asp.net web form....
Here is a simple Delete method that I have in my App:
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What I want to do is show the message from the TempData inside my Index View when it does the redirect
Here is my Index Method:
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I have a partial view (user control) that is shared by my Create and Edit views. When I use it in the Edit view, I have to to include an hidden field (Html.HiddenFor) to prevent a 'Row changed or not found' error in my data service, but when I use it in the Create view, I have to remove the PK hidden field, to prevent an error over trying to insert into an identity column. It is not feasible to not use identity columns in this application, so how can I 'switch' that PK hidden field on or off depending on which action has been invoked?
Post Action Code:
[HttpPost]
public ActionResult Edit(JobCardViewData viewData)
{
try
{
jobCardService.Update(viewData.JobCard);
Edit View Excerpt:
<% Html.RenderPartial("JobCardInput", Model); %>
Partial Excerpt:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Poynting.Installation.Web.ViewData.JobCardViewData>" %>
<% using (Html.BeginForm())
How can I allow non-sysadmin users to create/edit a SSIS package? Do I need to give special permissions?
View 6 RepliesI want create/show/edit a excel file from my asp.net application. All I want is like the working of Google docs. Is there a way I can implement it? Any dll or can i even use the google docs api for that?
View 4 Replies to manually (via code) add a row to a GridView and then set it in edit mode immediately? I know how to set a row in edit mode via simply doing the following:
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The GridView is currently binded to a generic list.