ADO.NET :: Using The First mvc Tutorial To Make Application - Getting Error - No Key Defined
Mar 30, 2011
all I am using the first mvc tutorial to help make this application. I keep having an issue where this error occurs:
System.Data.Edm.EdmEntityType:
: EntityType 'ITmainDB' has no key defined. Define the key for this EntityType.
System.Data.Edm.EdmEntitySet: EntityType: The EntitySet LawmMarketOrders is based on type ITmainDB that has no keys defined.
The tutorial video works fine. But when I create this application it creates the above error.
I followed the tutorial at [URL] At 12:04 in the video, the author, Stephen Walther. inclues the line return View(_entities.MovieSet.ToList());
When I tried to compile this I get an error: Error 1 'MovieApp.Controllers.MoviesDbEntities' does not contain a definition for 'MovieSet' and no extension method 'MovieSet' accepting a first argument of type 'MovieApp.Controllers.MoviesDbEntities' could be found (are you missing a using directive or an assembly reference?) P:experimentMovieAppMovieAppControllersHomeController.cs 18 35 MovieApp If I just enter return View(_entities. then Intellisense offers Equals, GetHashCode, GetType, and TosString.that _entities is not being interpreted because of insufficient referencing? My (introductory) understanding is that it is looking in the DataModel.edmx (or the entities design surface) for DataMovies. In an earlier part of the tutorial, we created a datamodel called Movies. In the DataModel.edmx Model Browser, I can see EntityContainer: Movies. So, then, why might _entities not be seeing this?
In looking at the model browser, it also contains an Entity Set called Movie1. However, I tried using return View(_entities.Movies.ToList());andreturn View(_entities.Movies1.ToList()); But neither compile. What should I change to get the program to compile?
Say I have a web site with a master page and an aspx page.In my ASPX page, I am pointing to my masterpage with the MasterType tag.<%@ MasterType VirtualPath="~/mymasterpage.master" %>Say, I've defined a label in the markup of my master page.If you look at the designer code, this label should be something like thisprotected global::System.Web.UI.WebControlIf I type in this "Master.label1", the complier will complain that the control is inaccessible due to the protection level" and rightly so, as label1 is automatically defined as "protected"
I used MicrosoftReportview in my project , The reports are avalable in project folderWhen I run web site in Server (not VS development server) . It give this type of error.Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: The element 'buildProviders' cannot be defined below the application level.
have been trying to get to grips with the entity framework using the music store tutorial as a base reworking it to fit an existing application i havei have a database table called AuthorDetail. I also have AuthorDetail.cs Model, and a View AuthorDetail.cshtml strongly-typed to the Model. It's also declared as DBSet in the Entities class :DbContext under the application Models namespace.
Is there a simple way to redirect to 404 page without typing its name? Ex: Response.Redirect(404 status coded page);Or is there a way to get default 404 location?
First of all, let me explain the situation, I know this is a bit complicated. And I apologize for my poor English.I have created a dll library which contains the classes I created.I tested the library with Console Application and web site created with Visual Studio 2005,everything works fine.So I copied the dll to the "Bin" folder of a running ASP.NET 2.0 web site, added reference to the dll file, imported the namespace, then trying to initiate instances of objects in the dll.
I'm very new to Visual Studio and I am getting this error when trying to update an Oracle table from Gridview using a tableadapter datasource. I've followed the instructions in my text very closely but am at a loss as to why this error is occurring.
Details: System.MissingMethodException: No parameterless constructor defined for this object.
Source Error:
[Code]....
Stack Trace:
[Code]....
this is the stack trace error I am getting. At this point, I'm a little clueless how to resolve it.
And i get error like this: Both DataSource and DataSourceID are defined on 'Grid_Goster'. Remove one definition. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Both DataSource and DataSourceID are defined on 'Grid_Goster'. Remove one definition. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using And in my .cs file there is code like this.
SqlDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection); Grid_Goster.DataSource = dr; Grid_Goster.Visible = true;
i think this code works correctly. How can i solve this DataSource and DataSourceID problem?
i have developed a simple form which have only one button and when user click on button then just server datetime will be shown by icallback. few days back it was working but now i saw it is stop working. i am running the program from VS2005 IDE. i just can not understand why it is not working. i am getting two error and the errors are 1) WebForm_DoCallback is not defined 2) WebForm_InitCallback is not defined please help me how to fix this error. here i am giving my code html ----- <%@ Page Language="C#" AutoEventWireup="true" CodeFile="BasicCallBack.aspx.cs" Inherits="BasicCallBack" %>
Is there a way I can make it so that a user must meet RoleOne and RoleTwo to satisfy the RoleGroup? By default, if a user is in either of the two roles, they will be granted access. I know I can do this via the code-behind, but I'd prefer to be able to wrap some content template with this markup instead of having to wrap it in a panel and hide the panel programmatically.
I receive the error "No parameterless constructor defined for this object", I have read some post on this forum about this error, but i cannot get it to work.
First I incorrectly had my node defined in /shared/web.config instead of the web.config in the root of the WebUI project. I also had not correctly defined my connection string within web.config. I have pasted the proper web.config sections below:
I created a small new webservice for AutoCompleteExtender and for some reason I am getting "type System.Web.Script.Services.ScriptService is not defined" error. I Googled this and found a few threads about similar issues but was unable to resolve mine. Here is the example of the code:
[Code]....
When I add Imports System.Web.Script.Services I get "Namespace or type specified in the Imports 'System.Web.Script.Services' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases".
I've tried adding Reference to System.Web.Extensions and it didn't do anything. What could be the problem?
I have a website running on Vista with IIS 7. I call a webservice from the client script code and I always get the error that my service is not defined.
The same website works right when running from web developer server of visual studio.
I have a little asp.net, c# web app created in visual studio. It runs fine on my local machine out of IIS and, of course, it runs fine on the server provided with visual studio.
I copied the files over to a couple of hosting servers I use and it wouldn't run on either of them: the web page could not be seen at all.
Eventually one the hosting providers has come back with an answer and this is it:
ASP.net was not activated for your account, so that's why nothing asp.net would run. We've activated it now but there are still some configuration issues with your /home/www/brassrazoo.org/visstudwebapp/Web.config - line 38: The section <authentication> can't be defined in this configuration file (the allowed definition context is 'MachineToApplication').
Apparently they've now 'activated asp for my account' but it has made no difference whatever to what happens. I just get an error:
I've set up a strongly-typed View and a controller method to save the object represented in that View. The object in question is from a class that uses named parameters with default values. This is not a database object, but rather is the intermediate object that is used for the display and user input. It gets translated into a database object in the service class. Anyway, when I attempt to save the object, I get the following error:
System.MissingMethodException: No parameterless constructor defined for this object.
This is kind of aggravating. I can add a parameterless constructor to the class, and then everything works just fine. I just don't understand why it is necessary. I'm new to named parameters with default values, but the reading and such that I've done has described that method calls with default values do not have to have a 'no-parameter' implementation. You can just call the method with any or none of the parameters specified and everything works as expected. If there is a 'no-parameter' implementation and no params are passed, then that one is used, since it is more specific than the one with default values. Is the behavior somehow different when this is used in the constructor of a class? Why would I have to include a parameterless constructor when I have all the values accounted for? Is the runtime creating an object on the fly as the save method executes, which requires this? The method is like this:
[Code]....
I'm wondering if the object is instantiated by the runtime in order to populate the method parameter, and then assigned values from the form collection. I suppose that would make sense, but I do not understand why this causes an exception. For what reason would a parameterless constructor be required?
I have no idea why my form submit is not passing the model back to the Controller action
Here is the View:
[Code]....
Heres the Controller:
[Code]....
Here is my Model:
[Code]....
By default Index, renders with an empty results set, on button press i want it to go to the "StartSearch" Action, and rerender the index with possibly non-null results set.
