to string c# fields
public override String ToString()
{
Type objType = this.GetType();
PropertyInfo[] propertyInfoList = objType.GetProperties();
StringBuilder result = new StringBuilder();
foreach (PropertyInfo propertyInfo in propertyInfoList)
result.AppendFormat("{0}:{1},", propertyInfo.Name, propertyInfo.GetValue(this));
return "{" + result.ToString() + "}";
}