Select All Rows Using Entity Framework

Question

I\'m trying to select all the rows out of a database using entity framework for manipulation before they\'re sent to the form

var ptx = [modelname].[tablename]()         


        

Answer 1

Old post I know, but using Select(x => x) can be useful to split the EF Core (or even just Linq) expression up into a query builder.

This is handy for adding dynamic conditions.

For example:

public async Task GetUser(Guid userId, string userGroup, bool noTracking = false)
{
    IQueryable queryable = _context.Users.Select(x => x);

    if(!string.IsNullOrEmpty(userGroup))
        queryable = queryable.Where(x => x.UserGroup == userGroup);

    if(noTracking)
        queryable = queryable.AsNoTracking();

    return await queryable.FirstOrDefaultAsync(x => x.userId == userId);
}