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Asked: 2026-05-29T04:27:42+00:00

I’m new to the .net framework but not to programming. I used the simple

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I’m new to the .net framework but not to programming. I used the simple Crud generation with .net/c# and on the create view I would like to be able to have a dropdown list generated from a different model. I’m not sure how to achieve this with c#.net Any help would be greatly appreciated.

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  1. Editorial Team

    Hi user1121777 (couldn’t resist)

    If your drop-down list comes from a separate model (I do that myself), you can instantiate the context related to model#2, query for that drop-down list data as a No-Tracking query and then dispose that context.

    How you do a no-tracking query is different if you are using an ObjectContext from how you do it with a DbContext.

    For DbContext, you can use the AsNoTracking method extension on a linq query.

    For ObjectCOntext it’s a PIA. 🙂 Check this old article I wrote and if you search for the term “notracking” you’ll see the basic pattern for that.

    When you make a selection from the drop-down list, you can then use the key value of the selection and apply that to the related foreign key property of the object you are editing.

    HTH
    Julie

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