I loaded the ASP.Net Learning Unit via C:\Program Files (x86)\IdeaBlade DevForce EF\Learning Units\200 Intermediate\ASP.NET Apps Using AspDatasource\02 Tutorials\CS\Completed_Pt01.  I set the starting project and starting page and pressed F5.  After logging in I am met with the following error:

 

 

 

I assume there is a problem with the connection string in ServerModelNorthwindIB-->App.Config:

 

    <add name="ServerModelNorthwindIBContext" connectionString="metadata=res://*/ServerModelNorthwindIB.csdl|res://*/ServerModelNorthwindIB.ssdl|res://*/ServerModelNorthwindIB.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.;Initial Catalog=NorthwindIB;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" />

So I set the DDL's data source to (None) on http://localhost:1103/Nancy/DevForceWeb.aspx - http://localhost:1103/Nancy/DevForceWeb.aspx  and drag & configure a SqlDataSource and GridView on the page.  Pressing F5 yields a grid of 10 employees.  The SqlDataSource's connection string points to a connection string in web.config:

 

  <add name="NorthwindIBConnectionString_TroyLaptop" connectionString="Data Source=TROY_LAPTOP\TROYLAPTOP;Initial Catalog=NorthwindIB;Integrated Security=True"
   providerName="System.Data.SqlClient" />

 

So I point the DDL back to mEmployeeSelectorAspDataSource and modify the App.Config connection string to make it point to TROY_LAPTOP\TROYLAPTOP (server/instance names).  I press F5 and still encounter the error.  I've tried a few other remedies, including detaching & reinstalling the NorthwindIB db, with no positive results.

 

Thus my question: what is my Jethro noggin overlooking?

 

Thanks for your time & attention.

 

Troy

 

Is it only the AspDataSource Learning Unit with which you are having connection problems, or do you also have this problem with other Learning Units?

 

I ran into that same License Violation error when running the AspDataSource solution but once I selected a startup project and startup webform I never encountered that error again.  That remedy did not work for the Winform tutorial mentioned above.

 

My non-trial license key should be valid. 

 

Troy

 

    #region DefaultManager
    public new static DomainModelEntityManager DefaultManager {
      get {
        return GetDefaultEntityManager<DomainModelEntityManager>();  <--- EXCEPTION THROWN
      }
    }
    #endregion

 

p.p.s.  I am signed in as an Administrator on this laptop.

 

the reason that I asked about other Learning Units was to see if you have a problem in general accessing the Northwind IB database, or whether your database access problems are unique to the AspDataSource Learning Unit.

Hmmm, I must have missed that warning in the readme file.  I have indeed used the Object Mapper--seemed like a good idea at the time (said Adam, after he ate the apple).  Anyway, does that mean I should NEVER go in to the Object Mapper or does that mean I should not go into it until I'm done with the Learning Units?  Both options seem silly.  My Jethro brain expects a valid non-trial license key (i.e. worth money) to be able to run any sample code (Learning Unit) before or after running a DevForce feature (Object Mapper).  This is one of those "What were they thinking" situations that we peons are incapable of fathoming.

 

> ...was to see if you have a problem in general accessing the Northwind IB database

 

As mentioned previously I can access the NorthwindIB db via a SqlDataSource control within the AspDataSource Learning Unit, just not with an AspDataSource control.

 

At this point I assume I need to perform the usual Windows remedy of uninstalling & reinstalling DevForce EF, then ensure I don't utilize the tantalizing Object Mapper until I've exhausted the Learning Units.  If anyone has any better work arounds I'd be most grateful.

 

Thanks again for your time and wisdom.

 

Troy

 

If I wipe out databinding for the DDL then the page comes up with no problem (though no data is displayed, of course).

 

If I add a SqlDataSource and ListView, I get data.

 

If I manually add an AspDataSource and ListView tied to Web.Model.OrderAdapterManager I receive the following error:

 

[NotImplementedException: Must be implemented in EntityAdapterManager subclass]
   IdeaBlade.Asp.v4.EntityAdapterManager.SelectEntities(IOrderedDictionary parameters, DataSourceSelectArguments pSelectArgs) +71
   IdeaBlade.Asp.v4.AspDataSourceView.ExecuteSelect(DataSourceSelectArguments pSelectArgs) +129
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +19

I am off to try other remedies.  In the meantime, we're still using CodeSmith templates to generate our BLL skeleton, Entity and DAL files.  Hopefully we'll have good experience with DevForce EF down the road.

 

Troy

Just for grins :=)  :-)

 

Try changing connection string to say "Persist Security Info=False" and see if it runs - sometimes SQL Server can be strange, too...