C# Linq to SQL: How to express “CONVERT([…] AS INT)”?

Question

In MSSQL you can convert a string into an integer like this:

CONVERT(INT, table.column)

Is there any C# expression that Linq to SQL would t

Answer 1

for LINQ to entities, if it is simply a mismatch between your model and the DB you can overcome this using a valueconverter with EF Core.

public OnModelCreating(ModelBuilder modelBuilder) {
  modelBuilder.Entity()
              .Property(e => e.myModelIntColumn) // this column is a string in the db
              .HasConversion(new ValueConverter(m => m.HasValue ? m.ToString().Substring(0,10) : null, db => int.Parse(db ?? "0")));
}

and in my LINQ i can then use bit comparison:

MyDBSet.Where( e => (BitsWanted == 0 ||  ( e.myModelIntColumn & BitsWanted ) > 0));