Weird mapping error in linq-to-sql dbml file in VS2010

Posted by rwwilden on Stack Overflow See other posts from Stack Overflow or by rwwilden
Published on 2010-04-22T10:00:54Z Indexed on 2010/04/22 10:03 UTC
Read the original article Hit count: 333

Filed under:

VS2010

|

linq-to-sql

|

dbml

|

c#

Since I switched to VS2010, several times a day I get a compilation error in my dbml file:

DBML1005: Mapping between DbType 'bigint' and Type
'MyNamespace.SecurityToken' in Column 'SecurityToken' of Type
'Employee' is not supported

When I restart VS2010 the error disappears. I have no problems running my application using this dbml file (specifically, there are no problems getting correct values inside the SecurityToken property of Employee objects).

The SecurityToken property is of an enum type defined as follows:

[Flags]
public enum SecurityToken : long
{
    None = 1,
    Admin = 2,
    ......
}

The SecurityToken column in the database is of type bigint.

Am I missing something? It's especially weird that the error only happens sometimes, when I'm writing code that isn't related at all to the LINQ model.

© Stack Overflow or respective owner

Related posts about VS2010

Uninstall of VS2010 RC gets stuck on uninstall of Crystal Reports templates for VS2010

as seen on Stack Overflow - Search for 'Stack Overflow'
The progress bar is stuck at 100%. Any suggestions for the best/cleanest way torwards a healthy install of VS2010 Final Release? I have this problem all the time with the MS Installer (MSIEXEC.exe/setup.exe). Previously, reinstalling the MS Installer didn't help. >>> More
Insufficient Permissions Problems with MSDeploy and TFS Build 2010

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
I ran into these problems on a TFS 2010 RC setup where I wanted to deploy a web site as part of the nightly build: C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v10.0\Web\Microsoft.Web.Publishing.targets (3481): Web deployment task failed.(An error occurred when reading the IIS Configuration… >>> More
Package and Publish Web Sites with TFS 2010 Build Server

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
To package and publish web sites with TFS 2010 Build Server, you can use MSDeploy and some of the new MSBuild arguments. For example: /p:DeployOnBuild=True /p:DeployTarget=MsDeployPublish /p:MSDeployPublishMethod=InProc /p:CreatePackageOnPublish=True /p:DeployIisAppPath="Default Web… >>> More
Web 2.0 Extension for ASP.NET

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
ASP.NET is now much extended to support line of business and data centric applications, providing Web 2.0 rich user interfaces within a native web environment. New capabilities allowed by the Visual WebGui extension turn Visual Studio into a rapid development tool for the web, leveraging the wide… >>> More
Design by Contract with Microsoft .Net Code Contract

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
I have done some talks on different events and summits about Defensive Programming and Design by Contract, last time was at Cornerstone’s Developer Summit 2010. Next time will be at SweNug (Sweden .Net User Group). I decided to write a blog post about of some stuffs I was talking about. Users are… >>> More

Related posts about linq-to-sql

how can i page my linq to sql result set

as seen on Stack Overflow - Search for 'Stack Overflow'
Remembering MySQL could use the instruction "limit" to indicate where I was starting my result set and how many wanted to have included. Select * FROM Users Limit [start], [Length] How can I do this in LinqToSql >>> More
LINQ to SQL and missing Many to Many EntityRefs

as seen on West-Wind - Search for 'West-Wind'
Ran into an odd behavior today with a many to many mapping of one of my tables in LINQ to SQL. Many to many mappings aren’t transparent in LINQ to SQL and it maps the link table the same way the SQL schema has it when creating one. In other words LINQ to SQL isn’t smart about many to many mappings… >>> More
Comparing LINQ to SQL vs the classic SqlCommand

as seen on Dot net Slackers - Search for 'Dot net Slackers'
tweetmeme_url = 'http://alpascual.com/blog/comparing-linq-to-sql-vs-the-classic-sqlcommand/';tweetmeme_source = 'alpascual';When you are coming from using SqlCommand and SqlConnection is difficult to move to another library for your database needs. For those people still in the limbo to make the decision… >>> More
Comparing LINQ to SQL vs the classic SqlCommand

as seen on Dot net Slackers - Search for 'Dot net Slackers'
tweetmeme_url = 'http://alpascual.com/blog/comparing-linq-to-sql-vs-the-classic-sqlcommand/';tweetmeme_source = 'alpascual';When you are coming from using SqlCommand and SqlConnection is difficult to move to another library for your database needs. For those people still in the limbo to make the decision… >>> More
LINQ to SQL Profiler

as seen on Dot net Slackers - Search for 'Dot net Slackers'
In this article we will be taking a look at the new LINQ to SQL Profiler from HibernatingRhinos. This tool gives you a view into the goings on of LINQ to SQL. Not only does it allow you to see the SQL that is generated by your LINQ queries but it also shows you information about your connections… >>> More