Reverse & Forward Mapping 'image' field

[James]

Hello,

VS2010 + OpenAccess Q2.2010 + MSSQL 2008 R2 Express

Reverse mapping NorthwindOA database tables, and re-build the solution/project.

Output:

"c:\program files (x86)\telerik\openaccess orm\sdk\VEnhance.exe" -assembly:"C:\Telerik_Learn\OpenAccess_ORM\GettingStarted\obj\x86\Debug\GettingStarted.exe" -config:"C:\Telerik_Learn\OpenAccess_ORM\GettingStarted\App.config" -verboseMode:1 -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Core.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.Linq.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Data.DataSetExtensions.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\Microsoft.CSharp.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Data.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.dll" -reference:"C:\Program Files (x86)\Telerik\OpenAccess ORM\bin\Telerik.OpenAccess.dll" -reference:"C:\Program Files (x86)\Telerik\OpenAccess ORM\bin\Telerik.OpenAccess.35.Extensions.dll" -reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\mscorlib.dll"<br>C:\Telerik_Learn\OpenAccess_ORM\GettingStarted\Category.cs(10, 1): warning:OpenAccess Warning: Explicit change tracking required for the array field GettingStarted.Category.picture. [class=GettingStarted.Category] [field=picture]<br><br>OpenAccess Warning: Explicit change tracking required for the array field GettingStarted.Category.picture. [class=GettingStarted.Category] [field=picture]<br>C:\Telerik_Learn\OpenAccess_ORM\GettingStarted\Employee.Telerik.OpenAccess.cs(10, 1): warning:OpenAccess Warning: Explicit change tracking required for the array field GettingStarted.Employee.photo. [class=GettingStarted.Employee] [field=photo]<br><br>OpenAccess Warning: Explicit change tracking required for the array field GettingStarted.Employee.photo. [class=GettingStarted.Employee] [field=photo]<br>C:\Telerik_Learn\OpenAccess_ORM\GettingStarted\LargeEmployee.cs(10, 1): warning:OpenAccess Warning: Explicit change tracking required for the array field GettingStarted.LargeEmployee.photo. [class=GettingStarted.LargeEmployee] [field=photo]

It seems three 'image' fields (Category, Employee, LargeEmployee tables) fail to be forward mapped when re-building the solution/project.

Thus, if I create a new 'MyCustomer.cs' with [Telerik.OpenAccess.Persistent()] enabled, forward mapping will not be successful after re-build the solution/project, nor Telerik > OpenAccess > Database Operations > Update Database can be successful.

Should I ignore these warnings? If I manually add new fields in the model classes, then forward mapping will fail, and Update Database operation will thrown an error.

Please advise me. Thanks!

[Alexander]

Hi James,

These warnings mean that the content of the arrays is not tracked for changes by OpenAccess. You can find more details on that matter in this article.
As to the database not being updated, please verify that the UpdateDatabase property of your project is enabled. Also remove the db-do-not-create-table node from the App.config for each class that you want to be forward mapped. Then you should be able to rebuild the project and update the schema.

Greetings,
Alexander
the Telerik team