Unable to update ADO.NET entity framework [closed] - c#

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After adding the framework to my project I am unable to add more tables to the framework. Tried "updating model from database" in the database design in Visual Studio but it does not save the new table I want to add though it sees the new table in the database that is not in my model but does not add it

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how can we ignore the data paging, sorting and count the total? .NET 6 EF Core [closed]

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I want to get data count after paging and sorting but I want to get all data count without filters(paging and sorting):And also want it all to happen in one request
Thank you
.NET 6: Entity Framework Core

Can I use in-memory Entity Framework 6.2.0 or if there any approach to do it [closed]

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I want to use in-Memory entity framework , could you help me guys
I can't find a way to use In memory db # entity framework 6.2.0
Yes, there is an in-memory provider for EF6 available: https://entityframework-effort.net/

How to copy class object data to edmx object in c# [closed]

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I am working in MVC. The user will enter data for about 50 fields, I will get this data in a class object from the view.
So, how can I copy this class object to an edmx table object in order save data into data base in c# ?
Try adding http://automapper.org/ in your project and in your code you would write something like.
var address = Mapper.Map<Address>(yourViewModel);
......................
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How do I pull existing, hidden fields from database? [closed]

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I'm trying to avoid having hidden fields being overwritten when I post to the database. What code is needed in my Get/Post in order to pull existing fields and ensure they are maintained after the user clicks save?
I'm using sql/mvc 4/c#.

Entity Framework populate entity at starting [closed]

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The question was about the concept of database first or code first.
When i'm using database first, how i can check if my database is already created and filled.
Thanks
Really, you are asking two different questions. Entity Framework is not a database administration tool and as such does not have any functionality for directly loading data from a spreadsheet.
If you research each part of your question separately, you might have more luck.
Seeding data with Entity Framework
Reading Excel Files with C#
Reply to comment:
if (!context.PostalCodes.Any())
{
IEnumerable<PostalCode> postalCodes = ReadPostalCodes();
foreach(var postalCode in postalCodes)
{
context.PostalCodes.Add(postalCode);
}
context.SaveChanges();
}

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