incorrect error highlight...

This class has certain public properties
using System;

namespace IOMarketDataApi
{
/// /// Data object for Margins /// ]]>
public class MarginDetails : ItemDetails
{
#region Declarations

private int mProductID;
private int mContractID;
private Double mBidMargin;
private Double mOfferMargin;

#endregion

#region Constructor

public MarginDetails() : base()
{
this.mBidMargin = Double.NaN;
this.mOfferMargin = Double.NaN;
this.mProductID = Int32.MinValue;
this.mContractID = Int32.MinValue;
}

#endregion

#region Properties

public int ProductID
{
get { return this.mProductID; }
set { this.mProductID = value; }
}


public int ContractID
{
get { return this.mContractID; }
set { this.mContractID = value; }
}

public double OfferMargin
{
get { return this.mOfferMargin; }
set { this.mOfferMargin = value; }
}


public double BidMargin
{
get { return this.mBidMargin; }
set { this.mBidMargin = value; }
}

#endregion
}
}

and I am reusing them further.

if (dtTable != null)
{
foreach (DataRow drRow in dtTable.Rows)
{
//Trace.WriteLine("Adding Trader item");
MarginDetails item = new MarginDetails();
item.#BidMargin# = (double) drRow["BidMargin"];

}
}

Please see ## what is incorrectly highlighted as Can not resolve symbol (even though the code was written with the help of code complete functionality..Compiler obv. does not see any problem...