DataSource Controls :: One To Many Join Support In Linq To Sql In Predicatebuilder?
Jun 27, 2010
i am trying to use predicatebuilder for a linq to sql query but i cant seem to get a join to another table. in my model, i have a table for applicants and another for job applications.. each applicant can have several job applications.
i expect in linq to sql to be able to do something like;
p.jobapptable.jobappdate where p is the applicant.
this isnt the case..i am trying to use predicatebuilder to search through applicants based on the job applications they have made? how`can i get linq to sql to show the foreign key relationships?
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[code]....
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Jun 26, 2010
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May 25, 2010
For context: First of all, I am new to LINQ, as I have been using SubSonic for quite some time now.
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[Code]....
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[Code]....
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Apr 7, 2010
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[Code]....
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I need to make a category filter. For this purpose I have two tables "Ingredient" and "Category"
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[Code]....
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[Code]....
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[Code]....
[Code]....
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Sep 9, 2010
I was trying to find out how I can join more than 2 tables using the LINQ-to-SQL syntax. For instance, joining 2 tables in SQL:
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i use Default membership provider for my membership
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Sep 4, 2010
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Apr 27, 2010
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Feb 11, 2010
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Jun 30, 2010
i have two queries they are:
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----------
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----------
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--------------------------
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[Code]....
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I have T_articles to save the articles.
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[Code]....
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[Code]....
so I got error:
[Code]....
and again I got an error:
[Code]....
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Nov 9, 2010
Here's my DB structure:
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Jan 8, 2011
The main problem is that I recieve the following message:
"base {System.SystemException} = {"Unable to create a constant value of type 'BokButik1.Models.Book-Author'. Only primitive types ('such as Int32, String, and Guid') are supported in this context."}"
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[Code]....
How shall I solve this problem to get a class instance that contain with property title and Book-AuthorID?I also have tried making some dummy by using "allbooks" relation with Code Samples from the address
http://www.hookedonlinq.com/JoinOperator.ashx. Unfortunately, still same problem.
I also have taken account to Int32 due to entity framework http://msdn.microsoft.com/en-us/library/bb896317.aspx. Unfortunatley, still same problem.
Using database with 3 tables and one of them is a many to many relationship. This database is used in relation with entity framework
Book-Author
Book-Author (int)
BookID (int)[code]....
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