Entity Framework Error - Unable To Find Requested Data Provider
Feb 15, 2011
I get this error when I try to publish a asp.net 4.0 application on my server. I am using entity framework and mysql as the database. Unable to find the requested .Net Framework Data Provider. It may not be installed.
[ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed.]
System.Data.EntityClient.EntityConnection.GetFactory(String providerString) +251
[ArgumentException: The specified store provider cannot be found in the configuration, or is not valid.]
System.Data.EntityClient.EntityConnection.GetFactory(String providerString) +10983191
System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString) +641
System.Data.Objects.ObjectContext.CreateEntityConnection(String connectionString) +67
Satelite.Dados.sateliteEntities..ctor() in E:Sites_dotNet4.0satelite runkSistemaDadosSatelite.Designer.cs:64
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0
System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +117
System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +247
System.Activator.CreateInstance(Type type, Boolean nonPublic) +106
System.Web.DynamicData.<>c__DisplayClass2.<RegisterContext>b__1() +15
System.Web.DynamicData.MetaModel.RegisterContext(Func`1 contextFactory, ContextConfiguration configuration) +483
Satelite.Global.RegisterRoutes(RouteCollection routes) in E:Sites_dotNet4.0satelite runkSistemaSateliteGlobal.asax.cs:35
[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +3988565
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +191
System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +325
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +407
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +375
[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11529072
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +141
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4784373
View 1 Replies
Similar Messages:
Feb 17, 2011
i having an error said that "Unable to find the requested .Net Framework Data Provider. It may not be installed."
I'm using (visual studio 2010) with (Sqlserver 2008 R2) And (.net framework 4.0)
(ASP.net:C#)
View 1 Replies
Apr 6, 2010
the error i'm getting after moving the aspnetdb db for the login control from vs to my iis for testing, see below for how i made the move attach the vs2005/app_data db to the sql express studio, there you can add the myMachine/aspnet user to the sql security users and then the users for the db, and give it db_datareader and db_datawriter permissions. then make sure that both the aspnetdb.mdf and its aspnetdb_log.ldf files have r+w permission for the aspnet account. then copy both files to app_data directory under the application folder in iis.
the machine.config dbproviderFactory setting is
<add name="SqlClient Data Provider" invariant="System.Data.SqlClient" description=".Net Framework Data Provider for SqlServer" type="System.Data.SqlClient.SqlClientFactory, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<add name="Microsoft SQL Server Compact Data Provider" invariant="System.Data.SqlServerCe.3.5" description=".NET Framework Data Provider for Microsoft SQL Server Compact" type="System.Data.SqlServerCe.SqlCeProviderFactory, System.Data.SqlServerCe, Version=3.5.0.0,.........
View 1 Replies
Mar 24, 2011
i am unable to add ADO.NET entity framework i am using VS 2008 SP1.I have created a new project and when i want to a new item i am unable to find the ADO.NET entity framework template.
View 3 Replies
Feb 23, 2011
I'm trying to use the Entity Framework with a Firebird database in Visual Studio 2010
Useful info:
Windows 7 64-bit
Visual Studio 2010 Ultimate
Firebird 2.5.0
Firebird .Net Data Provider 2.6
DDEX 2.0.5
I've done:
Installed Firebird server (and it works and I can connect to a database) Downloaded DDEX (I've run the registry files) used the gacutil on the FirebirdSql.Data.FirebirdClient.dll and checked that it indeed was installed and it was Modyfied the machine.config for both 2.0 and 4.0 in 32-bit and 64 bit folders to include the provider in the element When I try to add a connection in the server explorer I choose "Firebird Data Source" and the Firebird data provider and press continue. I the "Add Connection" dialog window I fill in the info "data source, database, user, password.." and press ok and then I get the following error:
Failed to find or load the registered .Net Framework Data Provider Also when I try to add a new Entity Data Model I cannot see the Firebird option.. I can only see SQL options. I really need help on this one as I've spent many hours on this and I cannot get it to work.. I've also read other related questions on SO,
View 1 Replies
Feb 13, 2011
We have been really tired lately dealing with all bugs that comes out of ODP.Net and the lag time to bring out any new product out. I am looking for ado.net provider for oracle and looking for the following:
1. Entity Framework
2. Linq
3. Good support (in case we run into issues)
4. Quick response to open issues
5. Quick updates and new releases
I looked at datadirect and dotConnect by DevArt...But I am not sure if any one is better than other.
View 4 Replies
Dec 14, 2010
Currently using VS 2005 & MS SQL 2005 Server with a Windows 7 OS and I am unable to generate Update/Insert/Delete queries when using the TableAdapter wizard. I am able to create the Select statament. This is the error message that is displayed in the TableAdapter wizard on completion for each of the Update/Insert/Delete queries "failed to find or load the registered .net framework data provider"
I have seached the web but no one seems to have seen this same issue.
If you know what is causing this let me know. I didn't have this issue while running a XP or Vista OS.
View 7 Replies
Sep 30, 2010
i am developing application , from the start it a data base driven application .
I want to know 1) Is Oracle provider support entity framework
2) I have three option from where i can start
1) ERD digram
2) Class digram
3) Entity Data Model the Model-First Way (mean create Entity model first and then from data model create data base and so on )
View 1 Replies
Jan 18, 2010
I have three table like above, table C is mapping table which has foreign key of Table A and B.How can i select and insert data in Table C using Entity Frame Work?
View 2 Replies
Oct 25, 2010
Is there a way to export a EF 4.0 Data Model to EF 3.5?
I looked around and found that we are not able to access EF 4.0 from a ASP.Net 3.5 project here: [URL]
Our project is the 1st to go to .Net 4.0 using Entity Framework and we (the team) were wondering if there was a way for the other projects that "might" need to access our data that are still using the .Net 3.5 framework.
View 1 Replies
Dec 5, 2010
there is error appear when i use crystal report v13 with Visual Studio 2010 in server
Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
what is the reason of this exception
View 1 Replies
Oct 3, 2010
I have an asp.net dynamic data website .net 3.5 built on ado.net entity framework with mysql database.Currently I have just one table in my entity model.
Everything is working fine on my local machine but when i uploaded on my server i got this error message:
"More than one item in the metadata collection match the identity 'mtDBModelStoreContainer'"
Note that this error happen when i open the table "WebsiteAdmin/users/List.aspx"
View 2 Replies
May 16, 2010
When I try to insert a record, I get this error : The underlying provider failed on Open.
This error occurs only with IIS and not with VWD 2008's webserver. In the EventViewer I get this Application Error : Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed. [CLIENT: ]
<add name="ASPNETDBEntities" connectionString="metadata=res://*/Models.FriendList.csdl|res://*/Models.FriendList.ssdl|res://*/Models.FriendList.msl;provider=System.Data.SqlClient;provider connection
string="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;Connect Timeout=30;User Instance=True;MultipleActiveResultSets=True"" providerName="System.Data.EntityClient" />
I am using aspnetdb.mdf file, and not any external database.I have searched enough for this, but no use.
View 4 Replies
Feb 16, 2011
I am developing under VS 2010 with asp 4.0. What library and / or reference am I missing?
View 2 Replies
Aug 5, 2010
I am trying to add a new entity and have to refernce associated data to add it. I cannot load the Referencetables. Giving "The EntityReference could not be loaded because it is not attached to an ObjectContext." How do i complete this task in Entity Framework 3.5
[Code]....
View 1 Replies
Jul 10, 2010
I've just created a new MVC 2 application that references both an entity model library and a services library, and all compiles fine without running the app, but when I try running it, I get the following runtime error"
Compiler Error Message: CS0012: The type 'System.Data.Objects.DataClasses.EntityObject' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
I have double checked umteen times (e.g. Umpteen*n) and the cited assembly is refenced in all three projects. If it wasn't, WTF would I not get a build error?
View 1 Replies
Apr 5, 2010
these below codes give whole data of my Rehber datas. But if i want to show web page via Gridview send me out of memory exception error.
[code]....
View 1 Replies
Nov 29, 2010
I have a strange error, I've tried to search for it before writing this post but I wasn't able to find out a solution yet.
I'm executing a query using ExecuteStoreQuery against a MySQL database, but it throws an exception reporting that there's a syntax error in my SQL.
I've tried to copy&paste the sql query into the MySQL tool and it works nicely, giving the correct results.
I've tried to open manually the connection and using CreateCommand to use it the "old way".
My query is a bit long, 4000 chars more or less, could it be the problem?
View 4 Replies
Jan 3, 2011
I have the following classes:
public class Category
{
public int CategoryId { get; set; }
public string Name { get; set; }
}
public partial class CategoryMap : EntityTypeConfiguration<Category>
{
public CategoryMap()
{
this.HasKey(c => c.CategoryId);
this.Property(c => c.Name).IsRequired().HasMaxLength(400);
}
}
public class MyObjectContext : DbContext
{
public MyObjectContext(string connectionStringName)
: base(connectionStringName)
{
}
public DbSet<Category> Categories { get; set; }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Configurations.Add(new CategoryMap());
base.OnModelCreating(modelBuilder);
}
}
Now when I run the following code I get an exception (GenericArguments[0], 'System.Int32', on 'System.Data.Entity.Internal.Linq.ReplacementDbQueryWrapper`1[TEntity]' violates the constraint of type 'TEntity')
DbDatabase.SetInitializer<MyObjectContext>(new DropCreateDatabaseIfModelChanges<MyObjectContext>());
using (var context = new MyObjectContext("NopSqlConnection"))
{
var query1 = from c in context.Categories
select c.CategoryId;
var test1 = query1.ToList(); //works fine
var query2 = from c in context.Categories
where query1.Contains(c.CategoryId)
orderby c.Name descending
select c;
var test2 = query2.ToList(); //throws the exception
}
View 1 Replies
Mar 12, 2010
I have an ASP.NET Page that updates registered User Address Details for a selected record.
Below is the Update method that i am calling from Controller.
When i am calling ApplyPropertyChanges method, I am getting the below error.
Did anyone run into the same error while updating the record with Entity Framework.
[code]...
View 4 Replies
Feb 2, 2011
I have a db connection string 'ApplicationServices' defined in the connectionString section of web.config and 3 Entity Framework connection strings which have the provider connection string attribute with the same connection string as the one in 'ApplicationServices'. Is there a way to reference connectionString in 'ApplicationServices' for the provider connection string attribute of the EF connection string in the web.config, rather than providing the connection string all over again?
View 1 Replies
Nov 2, 2010
I am new to entity framework , it is really very good , but I want to know what is the difference between using entity framework with stored procedure or without stored procedure , which one the faster and what is the benefits for using stored procedures with entity framework.
View 1 Replies
Jun 30, 2010
I have an EDM, it includes the entities extension and history. My goal is to use history to keep track of all the changes made to extension entity. For example, if extension with ID 223 has its property 'Name_Display' changed - I want the history entity to record this.
I'm using ASP.NET with VB.NET. Where in my code do I put the hook to say, "update the history entity" and what should that hook look like?
View 1 Replies
Nov 23, 2010
I'm writing an application that needs to map two different stores into different properties of the same entity. Basically, we have a CMS that exposes a file list PDF's via a web service. We have to send it an XML request and the response contains the data that needs to be parsed into each entity.
'm not sure how to modify the model in this way though. I can think of two ways to handle this,1. Create a new Schema that uses something like the System.Xml.Provider for each different request type/result set2. Write a partial class for the Entity and populate all the unmapped fields using serialized XML I'm actually unsure how to actually do either of the above, but if someone knows a good starting point or a better way to go about this please let me know. This is my first MVC project and so I'm not completely up to speed on all the concepts/best pracise.
View 1 Replies
Feb 9, 2011
I get an cast exception when i am trying to insert an entity in Entity Framework (using code-first). From this code :
public virtual T Insert(T entity)
{
return Context.Set<T>().Add(entity);
}
The cast exception is like "impossible to cast ...Collection'1(Entity) to type (Entity)" I can't figure out why. I am pretty sure ive done everything right. Post entity
public class Post
{
public long PostId { get; private set; }
public DateTime date { get; set; }
[Required]
public string Subject { get; set; }
public User User { get; set; }
public Category Category { get; set; }
[Required]
public string Body { get; set; }
public virtual ICollection<Tag> Tags { get; private set; }
public Post()
{
Category = new Category();
if (Tags == null)
Tags = new Collection<Tag>();
}................................
View 9 Replies