[
Category( "Data" ),
TypeConverter(typeof(DataSourceConverter))
]
public object DataSource
{
    get {return mDS;}
    set {}
}

internal class DataSourceConverter : StringConverter 
{
	private static StandardValuesCollection defaultRelations = 
		new StandardValuesCollection(
		new string[]{ "(none)" });

	public override bool GetStandardValuesSupported(
		ITypeDescriptorContext context) 
	{
		return true;
	}
	public override bool GetStandardValuesExclusive(
		ITypeDescriptorContext context) 
	{
	// returning false here means the property will
	// have a drop down and a value that can be manually
	// entered.      
		return true;
	}

	public override StandardValuesCollection GetStandardValues(
		ITypeDescriptorContext context) 
	{
//=======================================================	
//=======================================================
//!!!!!!!!!!!!!!!!!!!!!!!!!!  Что здесь не так?
                    FieldInfo[] infos = ((SelectExpert)context.Instance).FindForm().GetType().GetFields);
//=======================================================
//=======================================================
	        string[] srr=new string[]{ "(none)" };

		if(infos!=null)
		{
		     if(infos.Length> 0 )
		     {
		         srr = new string[infos.Length+ 1 ];
 		         srr[ 0 ]=  "(none)" ;
		         for(int i= 0 ;i<infos.Length;i++)
		         {
			srr[i+ 1 ] = infos[i].Name;
		         }
		     }
		     else srr = new string[]{ "(none)" };
		}

		srr = new string[] { "(none)" };
		DataSourceConverter.defaultRelations = new StandardValuesCollection(srr);

		return defaultRelations;
	}

	private bool DSMemberFilter(MemberInfo m, object filterCriteria)
	{		
	return m.GetType().FullName== "System.Data.DataSet"  ? true:false;
	}
 }