Why can I not add a new table to edmx file

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I'm trying to add a new table to the edmx file in visual studio, but everytime i try antything, i get the error that the key already exists. Even if i try it with a complete random names, like table name Giraffe, column legOne, column legTwo, i get the same error.

How can i resolve this?

What I have tried:

- adding with different non related names,
- use refresh instead of add in the wizard,
- check for equal names in the xml file,

Posted 29-Mar-20 23:17pm

Liro1984

Updated 30-Mar-20 1:34am

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Maciej Los · Answer 1 · 2020-03-30T00:01:00

Solution 1

I'd suggest to add a table on a database level (via management studio). Then try to update edmx file. See: How to: Update an .edmx File when the Database Changes (Entity Data Model Tools) | Microsoft Docs[^]

Posted 30-Mar-20 0:01am

Maciej Los

Liro1984 · Answer 2 · 2020-03-30T01:35:00

Solution 2

yes, it is based on a database level that i try to add it. table created in management studio which gives me that error

Posted 30-Mar-20 1:35am

Liro1984

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Richard Deeming 1-Apr-20 15:04pm

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