How do I search multiple columns using LINQ to SQL when any one of the column could be null? IEnumerable<User> users = from user in databaseUsers
I have a requirement for B2B inte开发者_运维问答gration, I will reading flat table from dataset and parse to a normalize form of datatable.
I generated an xml mapping using MsOrmCodeGen and I am using it in an app. I verif开发者_开发百科ied the mappings to my POCO and all looked fine. However, I am not able to query accross relationship
this is first time i am doing this, when i want to add new item to the 开发者_运维技巧db it fails.
I have a column in the database as EffectiveDate which is the type of DateTime. I have a linq query to get EffectiveDate from the table. but when I get I am getting EffectiveDate with time.
I have this original SQL that I need to rewrite in LINQ : SELECT luProfiles.luProfileID, luProfiles.ProfileName,
I have a Linq-to-SQL RIA service and a silverlight client. When 2 people edit the same entity I receive an EntityConflict in the OnSubmitCompleted when calling SubmitChanges.
I am getting this开发者_JAVA技巧 exception \"Object must implement IConvertible.\" while converting rules to tolist(). below is my code
I have a project where I query users by first letter: repository.GetAll().Where(q => q.BrukerIdent.StartsWith(letter.ToString())).ToList();
I am having problems setting up an association in entity framework between two tables where the association does not contain all the primary key values.
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