I am a newby with .Net.  I tried the following snippet from David Sceppa’s
MS ADO.NET Core Reference book.  I get the following error from the SQL
Server Exception:

"System.Datat.SqlClient.SqlExeception:Line 1:Incorrect syntax near “OrderId”.
Line 1: Incorrect syntax near “?”.
At System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior  ……"

I converted the code snippet from the book from C# to C++.  It  appears to
not like the “?” placeholders.  Does anyone have any insight into this error?
Is it supported in C++?

static System::Data::SqlClient::SqlCommand * CreateInsertCommand()
{
    String * strSql;

    strSql = S"INSERT INTO [tdforderdetails]"
        S" (OrderId, ProductID, Quantity, UnitPrice, Discount)"
        S" VALUES( ?, ?, ?, ?, ?)";
           
    SqlCommand * cmd = new SqlCommand(strSql,cn); // cn already established
    SqlParameterCollection * pc = cmd->Parameters;
    pc->Add(S"OrderId", SqlDbType::Int)->Value = __box(11077);
    pc->Add(S"ProductID", SqlDbType::Int)->Value = __box(11);
    pc->Add(S"Quantity", SqlDbType::SmallInt)->Value = __box(33);
    pc->Add(S"UnitPrice", SqlDbType::Money)->Value = __box(14);
    pc->Add(S"Discount", SqlDbType::Money)->Value = __box(1.2);

    try
    {
    cmd->ExecuteNonQuery();
    }
    catch (System::Data::SqlClient::SqlException  *e)
    {
        MessageBox::Show(e->ToString());
    }
    return cmd;
}