Hello, friends,

I defined a C# class like the follows in .net 2.0:

   [Serializable]
   public class ContractInfo
   {
       private string number;
       private string transCode;
       private int? vcCode;
       private DateTime? termFrom;
       private DateTime? termTo;
       private decimal? revMax;
       private DataTable dtAttribute;

       public ContractInfo()
       {
       }

       public string Number {set {this.number = value;}get {return
this.number;}}
       public string TransCode {set {this.transCode = value;}get {return
this.transCode;}}
       public int? VCCode {set {this.vcCode = value;}get {return
this.vcCode;}}
       public DateTime? TermFrom {set {this.termFrom = value;}get {return
this.termFrom;}}        
       public DateTime? TermTo {set {this.termTo = value;}get {return
this.termTo;}}
       public decimal? RevMax {set {this.revMax = value;}get {return
this.revMax;}}
       public DataTable DTAttribute { set { this.dtAttribute =
value.Copy(); } get { return this.dtAttribute; } }
   }

and I called a Window Form function, in which a ContractInfo data type
parameter was passed as the follows:

    public void PopulateContractInfo(ContractInfo contractInfo)
    {
        ..........
    }

When our build machine compiled, it complained, saying: Argument type
'Contract.ContractInfo' is not CLS-compliant. (CS3001)

I checked our code, I saw that we did have [assembly: CLSCompliant(true)] in
AssemblyInfo.cs.

So, I was confused.

Any ideas, reference papers? How to fix it? Thanks a lot.