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POMap many to many relation in entity framework
 

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    <p>I have a sql server database and a c# win forms application and I am using entity framework.</p> <p>In the database I have the following tables :</p> <pre><code>Table Joint( JointID FirstName FatherName LastName) </code></pre> <p>Which represent a joint in gym and every joint has a closet, and every joint has one closet and each closet can be rent by one joint. so i thought this one to one relation i don't know if it's true but anyway this the closet table :</p> <pre><code>Table Closet( ClosetID Number) </code></pre> <p>but at the same time i want to keep a history for each closet because maybe someone rent it for 2 months and then someone else rent the same closet after the first one so i want to know each joint rent this closet, and i want to know who is own know and how much he payed for the rent of the closet, so i want a start time, end time, price.</p> <p>at last i figured out that i want a third table between the above tables and it will be a many to many relation so i created :</p> <pre><code>Table ClosetHistory( JointID fk ClosetID fk StartTime EndTime Price) </code></pre> <p>and i think this right but i am not sure and this all not my problem. My problem is when i update my entities from database the relation between joint and closet not created and it create a joint entity stand alone and a closet entity but it doesn't contain a startTime, EndTime, Price attributes, and the ClosetHistory not created and that is true because the table between tow tables in many to many relation not represented as an entity, But if i remove the startdate and enddate, price fields from ClosetHistory table and re pdate my entities it works and the relation is created but then i can't save the starttime and endtime and price for the closets</p> <p>can you help me please ??</p> <p>and i am sorry for all this explanation, and i am sorry for my English language i know it's very bad :)</p>
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    1. USRobert Harvey
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      1. USMatt Greer
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    1. COThanks for you edit Carnotaurus, but this my first post and i thought i out tags only for the main subjects of my post.
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    2. COcome on people i need your help, just suggest something.
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