How can I filter two combobox in C# using entity framework

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i have a form with a tow combobo and i went to filter them.

ie: the second combo depends on the first.

What I have tried:

i tried more of possibility but nothing.

Posted 2-Apr-18 5:45am

Elvally Boubacar

Updated 2-Apr-18 5:53am

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F-ES Sitecore 3-Apr-18 4:36am

google "entity framework cascading dropdown" or "entity framework cascading combobox"

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#realJSOP · Answer 1 · 2018-04-02T05:55:00

Solution 1

I would write a method in my dbcontext class that performed the necessary filtering, and bind the returned collection to the combo box. Of course, this would probably be pretty slow if you were filtering as the user typed something, but it's certainly doable.

Posted 2-Apr-18 5:55am

#realJSOP