I'm a seasoned programmer with years of experience in Windows Forms development using different programming languages as already stated in this question: Will learning WPF improve my skills in ASP.NET? ASP.NET or any Web based programming language doesn't feel natural for me to explore or to use. Although I am unfamiliar with Web based technologies, my curiosity about these grows and grows. In addition to it, I am aware of the market place Web based programming takes. I would like to expand my knowledge and experience to the Web, though would it be just to know what I'm talking about instead of speculating whatever.
My experience as an information and process systems developer allows me to understand the concepts and some of the basics. I am aware that Web based applications are stateless, for instance, and that I need to use session or viewstate variables to keep the information the user is working with alive, otherwise I would loose them. I also understand the basics of Ajax based controls such as the UpdatePanel, which is to update or to refresh only a part of a UI page rather than reloading everything through the connection again. I can get that CSS defines styles for your page's sections and that you may change radically your Website's aspect just by changing the CSS reference. I am also aware of masterpages, which I don't really understand, in fact.
Programming Model
I just watched this video about choosing the right model for me/my application:
Choosing the Right Programming Model. If looks like ASP.NET MVC, which I thought was the best approach, is more for the veteran Web developers, people who are comfortable with Web applications. I have used a lot of DataBinding in Windows Forms, and WebForms seems to be more what I'm looking for into ASP.NET, until they say that MVC allows for Unit Testing, TDD and Agile methodologies, which I adhere to, as a certified Professional Scrum Master. I'm a bit mixed up on what will be more natural for me speaking of programming model.
Questions
Taking into account my base of knowledge and my experience, what programming model do you think I'm going to be more comfortable with? Will choosing one over the other allow me to get acquainted enough with ASP.NET to one day try the other model? In the video about choosing the Programming Model both sat on ASP.NET, I heard about DataBinding while using Web Forms, but no mention of DataBinding in the MVC model. Is there any possible DataBinding in MVC?
Imagine I'm developing a webform with two dropdownlists and a submit button. The second dropdownlist depends on the choice in the first, and both are loaded dynamically using webmethods being called with javascript in de ASPX page (ajax). When I submit the form to the server, to save the data, I can't get the value of those dropdownlists. I think it is because with client AJAX no viewstate data is being generated. I need to send the data to the server and save the webform data, and identify wich data is on each webcontrol.
In .NET land what would be a good approach for quick prototyping of a concept (i.e. development just on my PC) that could then be extended out to product (users across LAN/WAN), BUT in a fashion that the model/business logic code and data access layer code can be used as is? One thought for example I had as to do: (a) WinForms with business logic and Entity Framework layer to SQL Server Express on my PC, then (b) Go then to ASP.net (using the business logic / data library) with SQL Server/IIS
I am trying to develop a chess application in asp.net (C#). I am very confused about overall structure of the application. I am just unable to figure out the complete model (or prototype) of my project. As chess programming should be very efficient in memory consumption and speed, can someone provide me a good idea , how should I develop my application. Currently, I am taking a class named 'Chessboard' for my project and its objects are chesspieces ( pawn,king,queeen). I am initialising each object with some properties (type, value, color etc). But its quite complex. I am having 32 objects in this approach.
ASP.NET server controls has a few categories, for example, normal ones e.g. TextBox, Button which can be done in HTML/JS; Validation controls: can be done in JS; Login controls: I have seen them implemented in JS. Data bound controls: not sure, but maybe JS can work directly with databases, implementing controls like photo slider. So in the time span of next 5-10 years, will server-side web programming model fall out of mainstream and be replaced by JS/Ajax that interacts directly with databases?
but I am rather confused about what to invest in. I heard that server-side code translates into client-side code. So, if you have an .aspx file, it will be converted to HTML/CSS/JavaScript. I have experience with the latter three technologies put into a rather dull text file and rendered by a web browser. My question is how much HTML/CSS/Javascript coding would I have to do when server-side programming? In other words, can someone using ASP.NET program purely on the server side and not bother to write for the client side? Of course, I don't care about server-side being translated into client-side, but I am wondering if client-side programming needs to be done explicitly and to what degree.
I have "Order" object with Columns Ticket,OTP and CustomerName etc.Intially on DataGrid, I'm binding Ticket only , when user clicks on "Column Chooser" button, another windows appears to pickup CustomerName,OTP columns to add specified column dynamically on Datagrid. Environment : Asp.net ,C# with Object Data source
Public Class Order { publc void Order() { } public string Ticket { get { return this.strTicket; } set { this.strTicket = value; } } public string OtpNumber { get { return this.strOtpNumber; } set { this.strOtpNumber = value; } } public string CustomerName { get { return this.strCustomer; } set { this.strCustomer = value; } } } }
I'm building an MVC 2 RTM app, and I want to be able to share my model across applications. I'd *like* to be able to implement it like:ASP.NET MVC2 app (holds Views and Controllers)Class library to hold Model(s)WCF app to handle the data transactions with the models via different data stores across apps I had the MVC app working fine, but I wanted to abstract the data stuff and be able to work with the model across apps through the WCF site, so I created a class library project and moved all of the Models classes into that and set-up a WCF app, then added project references to the MVC and WCF apps that point at the class library. The idea was I can create services that take and return objects from the model via method calls across apps. It appears that everything's wired up correctly in the MVC project, so I'm passing the objects stored in the Models class library between controllers and views and everythig is compiling just fine, but for some reason the data is not being passed back from the views to the controller on POST -- all of the properties in the classes are null or empty.
When I debug the app, I can see that the values are stored in the model data dictionary but not the model object itself. What am I doing wrong? Am I on the wrong path, or missing something obvious (to some)?
I made a few changes to the DB in SQL server management studio then right clicked on the .edmx doc to get it to update. That seemed to work fine but when i compiled the app everything that referenced the EF seems to be broken.The Error list now contains the below error for all classes that used it.
The type or namespace name '' could not be found (are you missing a using directive or an assembly reference?)
I have an issue of static variable in an asp.net application. Let's say I have a server with 8 CPUs running windows 2008 R2 hosting an asp.net webbsite, nothing fancy here, no funny configuration.
Is the following statement true? at any single time, there's one and only one process is running and accepting requests, even in the recycling stage. The reason I am asking is: I have a static field in my class, and I want to make that's the only static instance in the website. I've heard in some circumstances, IIS is recylcing your application, and it will start a new process, but the old process is still working, thus I will have 2 static instances in memory, which defeat the purpose of static field.
One step further, let's assume there might be 2 instances in memory, can I assume there are at most 2 instances at any single time? And can I assume once the second instance is up, the first instance will NEVER accept new requests?
Another question: Recently I have a problem with an applicationdomain concept. Looks like if an application domain causes a memory leak, unload the domain will not release the memory (Umanaged leak). So to what extent Application Domain is isolated?
I am trying to make a post that should use the Default Model Binder functionality in ASP.NET MVC 2 but unfortunately I can't get through. When I click on the checkout button I populate a form dinamically using jQuery code and then submit this form to the server. This is the form that get submitted
This is the jQuery code that handle the submit event for the form $("#cartForm").submit(function (event) { event.preventDefault(); var form = $("#cartForm"); var panel = form.parent(); panel.parent().block(); $.ajax({ type: "post", dataType: "html", url: '<%: Url.Content("~/Order/Checkout") %>', async: false, data: form.serialize(), success: function (response, status, xml) { panel.parent().unblock(); }, error: function (response) { panel.parent().unblock(); } }); });
This is the controller action that should be get called [HttpPost] [ValidateAntiForgeryToken] public virtual ActionResult Checkout( CartModel cart ) { } And finally this is the CartModel class involved public class CartModel : BaseModel{ public int CustomerID { get; set; } public int FirmID { get; set; } public List<CartItemModel> CartItems { get; set; } public CartModel() { CartItems = new List<CartItemModel>(); } } public class CartItemModel : BaseModel { public int ServiceTypeID { get; set; } public int Quantity { get; set; } }
But the default Model Binder does not bind the web form data to a CartModel class. Using Fiddler I have been able to see that the data sent to the server is correct as you can see from the following snapshot.
Possible Duplicates: Advice on using ASP.net WebForms or MVC, How to decide which is right, WebForms or MVC when doing ASP.NET
I am new to web development and asp.net... I was going through asp.net website and 'n' number of question here in stackoverflow regarding Webforms or MVC.... But still as a beginner can't get an idea what to choose?
What should i choose webforms or mvc?If MVC,What should i know before getting started with it?If webforms,What should i know before getting started with it?
What is the best way to implement business processes without writing code?I want to implement about 200 forms and workflows without writing a line of code because I want our customer to be able to extend the software without our help.What is the best way to generate forms and then add business processes to them?
when I use Html.HiddenFor( model => model.OwnerId ) to create a hidden field, the value assigned to that field is zero. When I use <input type="hidden" value="<%: Model.OwnerId %>" /> to add the hidden field to the form, the value is assigned correctly.
Why would Html.HiddenFor( model => model.OwnerId ) not get the correct value from the Model object? Am I supposed to load model state somehow separate from returning the model object from the action method? Here is the view:
[Code]....
The Create action method is relatively straight forward.
I've been used to decorating data model classes with data annotation attributes, but the purist in me baulks slightly at including purely presentational attributes such as display format here. I am, however, quite happy to keep validation centric attributes here. One good reason I have to continue keeping all annotations etc. in the data model is that my view model aggregates data model classes, e.g.
my ViewModelBase.DetailItem<TEntity> property in the view model is just a reference to an entity class in my data model. If I wanted to move presentational annotations to the view model, I would have to quite radically revise my design to one where I duplicate data model properties in my view model and use an object mapping tool to populate view model objects based on data model objects.
Say I got a domain model as follows: (and my repository expect an instance of this object)
[Code]....
And a view model (which my views are based on)
[Code]....
At the moment I got it like this and have my controller action manually create a new Person object from the PersonModel object before passing it on to the repository, which does not feel right.
So I tried to have PersonModel inherit from Person and pass that to the repository (also tried casting the PersonModel to a Person object first), but that don't work out.
What's the right way to have PersonModel automatically cast to Person? I want to keep this logic as my current structure allow me to keep things really loosely coupled, with the repository layer not having a clue how it's being used.
Here's the case I created this Permias.mdf on another solution that I had and then after that I decided not to use that solution and created a new website from visual studio and copy and paste the .mdf file to be used for this website.
Database 'C:\Permias.mdf' already exists. Choose a different database name.
Which Programming Language Should I Learn? Best language to learn (for a solo web designer looking to program) Is there a general guideline of which dynamic programming language to choose to start with?
I have been asked to create a small decision making program in asp.net. The criteria is that is must be table driven and not code driven so managers can make changes to the questions and responses. I was curious if anyone has seen an example online before?
I wouldn't taking a peek at how someone else accomplished this. I believe I have a good handle on the database side, I am more concerned on the display side.
i create a new web project there is two options to code 'C#' and 'VB.Net', I choose vb.net.....everything is working fine, now i want to add new webpage but in that page i want to write code in C# i know its possible because i did same job previously....but now the problem is when i go for add new item and choose web>webpage but there is single option to write source that is VB.net.....that is default setup when is choose new project.....
how to add C# page while choose new project in VB.net......
I have a RFID reader which reads my employee code. Now i want to log the date and time of the chip when it is scanned by the reader (ie) for an attendance system Login time and logoff time. I would like to use asp.net MVC and sql server 2005. how to integrate RFID with an asp.net mvc web application. Where should i start?
I have a dropdown list in my page which can load country list from a SQL database table. Now, I want to choose a country from that drop down list and If I click on the go button, then I want another query which can compare the country name(which I have selected) with another table and load the other necessary info from that table. If I specify the country name on the SQL command , then the data loads nicely(
<asp:SqlDataSource ID="SqlDataSource5" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString2 %>" ProviderName="<%$ ConnectionStrings:ConnectionString2.ProviderName %>" SelectCommand="SELECT [Zone_Name], [Card] FROM [Rates] WHERE ([Zone_Name] LIKE 'Canada%')"> [code]...
