protected RepositoryBase(string connectionString) {
DbContextOptionsBuilder<ProjectDbContext> optionsBuilder = new DbContextOptionsBuilder<ProjectDbContext>();
optionsBuilder.UseSqlServer(connectionString);
_dbContext = new ProjectDbContext(optionsBuilder.Options);
PropertyInfo[] properties = _dbContext.GetType().GetProperties();
foreach (PropertyInfo propertyInfo in properties) {
if (propertyInfo.PropertyType == typeof(DbSet<TEntity>))
_dbSet = (DbSet<TEntity>) propertyInfo.GetValue(_dbContext);
}
}
