C# - Automatic Properties Not Compiling Despite Adding Reference To System.Core.dll?
Feb 19, 2010
I have a c# v3.5 framework site that I am doing some maintenance on. I wish to use Automatic Properties but whenever I try to add one, the compiler fails [as below]. I have added the System.Core.dll (and it is in the web.config ok) but still no joy.
Error 6 'XXX.Archive.TypeOfArchive.get' must declare a body because it is not marked abstract or extern
if I serialize C# automatic properties with soap serialization, generated xml contains ugly element namesfor City property it is <_x003C_City_x003E_k__BackingField id="ref-6">I know that it is because it doesn`t serialize property but generated variable that may have such name.
Recently I have been given assignment to allow admin to add new pages dynamically without need to rebuilding and deploying web site/ project. These pages will be having simple text.
When you use ASP.NET web site (instead of web application model) and add reference to an assembly from local folder, Visual Studio, it seems, understands that this local assembly is also in GAC and so does NOT copy this assembly to bin folder (as it does with non-GAC assemblies), but simply adds new record in web.config file.
Why such a behaviour? Is it possible to force copy to bin folder (I need this since .dll is not on target environment)? I can add assembly to bin folder as file and it will work, but in this case bin folder contents will be in source control, which is not good.
I'm reading a bit of Pro ASP.NET MVC Framework and following a few tutorials written in the book. In the very first tutorial, creating a MVC site for dinner (PartyInvites), I encoutered this problem. While I try to reference some properties from Model class, the compilation error occured. Eg. the following code failed.
[Code]....
and the error message
Compiler Error Message: CS1061: 'object' does not contain a definition for 'Name' and no extension method 'Name' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?) I imported the Model folder into the controller too. I dunno what I'm missing here. Sorry, if it sounds a bit umm hard to understand cuz I just started picking up MVC this morning. Looking for any input.
I'm trying to inherit the GridView such that I can add a collection of filter properties which can be shown at design or altered at run time which would be like:-
Is there a way to do this in asp.net 2.0 GridView.
I'm looking for a good way to add arbitrary properties to the objects in a strongly typed list, based on the principle that I shouldn't pass a DataTable from my business layer to my presentation layer.For example, I might have a Category class with the properties CategoryId and Title. On one page I would like to fetch a list of all categories (ie. List<Category>) together with the most expensive product in each category.A while ago, I would have just returned a DataTable with some additional columns in it with the product data in, but I'm trying not to do that -- it would be trivial to set up it's not good practice. One option is to add a MostExpensiveProduct property to my Category class, but I might want to display the most recently added product in another case, or the cheapest product, so I'd end up adding a lot of properties to cover all the options. This just doesn't feel right to me.Am I missing a trick here? What is the best way of doing this? Or should I just be returning a DataTable to which I can add as many columns as I need and not worry about it?
Is there a good way to change the aspnet_Users, aspnet_Membership, aspnet_Applications and other table names which are generated by the ASPNET SQL Server registration tool -
[URL]
and change the reference to them in web.config or machine.config without breaking the default login, profiles and roles functionality that is provided by those tables?
I'm going to have to write a big system in January with ASP.NET MVC3 / C#, and need to know how to write a system that will WORK. I do have a bit of experience with ASP.NET MVC and C# but would not call myself an expert. It needs to be extensible so that I can extend it later with new features. How would one go about this? Is there books that explains this topic in detail or should I use trial and error? In short I need to know good design practice in my code thats extend-able for the future.
I have created a VB DLL by selecting File - New - Project and then Class Library
I added a "Properties" region and a "Function" region with some simple properties and one simple function. Compiled it and used it in another app with no errors.
At that point the only references in the project were the default references when creating the new project.
I then created a function that will take a file as a param and get the physical path and add the 2 together. In the function I use the "Request.PhysicalPath" method of the System.Web.UI.UserControl.
I then added areference to the System.Web DLL in my project.
PROBLEM IS I get an error on "Request" that says "Name Request is not declared"
So I googled the error which I found a thread that said to "just use HttpContext.Current.Request.Form" because "by default all websites developed in Visual Studio 2005 is Inherited from System.Web.UI.Page and Class files won't that's the resion we have to add System.Web.UI.Page namespace in the class file"
However when I added the "HttpContext.Current.form." before my "Request.PhysicalPath" I get the same error on "HttpContext".
i tried adding reference of system.windows.forms dll to my web site. But it is not getting added. If i add a reference of a dll of another project inside the assembly that gets added. Is it not possible to add reference of a system dll in website?
We have a web site that sits on a DotNetNuke platform and all of our coded modules are written in VB.Net for consistency. However, we have been sent a web page that works as a link and it is written in C# and references a cs file in its App_Code folder. If we try and load this into our website we get an error saying that it is not written in VB we then tried converting the homepage to VB but the reference folder is very complex and written in C#. Can we load the reference file even though it is C# and reference it using VB code. The current all is OurRemService RemService = New OurRemService(); where OurRemService is a file in the App_Code folder in the web page folder. The only other way around this is for us to set it up in IIS as a virtual directory and reference it directly but we would prefer to integrate it into our website.
Before using any class in your website project/page we have to add it's assembly reference to our project. Right?
Now, when I am using SmtpClient class from System.Net assembly after adding the System.Net.Mail namespace in namespace node of application's web.config file but without adding assembly reference to the project it still accepting and running the code. Why?
I enquired the machine's web.config file located at C:WINDOWSMicrosoft.NETFrameworkv2.0.50727CONFIG but didnt find any assembly reference for System.Net.
how it is working and where the assembly reference has been added and how?
I have a number of .Net web sites built in VS2010 using Framework 4.0that reference a web service to send emails.
My most recent site I created as a web application as opposed to a web site. In the Solution Explorer you can add a 'Service Reference' and, if you click the Advanced button you can then add a reference to a web service.
I did that and now the (web application) site won't build - it says it cannot load the Ajax dll. If I remove the reference to the web service, the site builds okay - if I add the reference back in, the site will not build.
Do I need to abandon the idea of using a 'Web Application' and turn it into a 'Web Site'?
I'm looking forward to enable my ASP.NET web application to utilize the Multi core processor. In Other words, I'm trying to have Multi-core functionality in my ASP.NET application.
1. Is there a reason why someone would want to add a reference to an assembly (e.g. System.Drawing) but not add the Using statement? Seems that if you add a reference, you should add the Using statement automatically, but maybe not always?
2. Correct me if I'm wrong, the only benefit of adding a "Using" statement at the top of your file, is to bring into scope an assembly and not have to fully type the class name? So if I have a Using System.Drawing, I can type in string = Color.Tomato.ToString(); instead of string = System.Drawing.Color.Tomato.ToString();