/// <summary>
///
/// </summary>
/// <param name="propertyName"></param>
/// <param name="value"></param>
/// <param name="operation">برای اتصال به عملوند قبلی استفاده میشود </param>
public CriteriaStruct(string propertyName, object value, CriteriaOperation operation)
{
PropertyName = propertyName;
Value = value;
Operation = operation;
}
public CriteriaStruct(string propertyName, object value)
{
PropertyName = propertyName;
Value = value;
Operation = CriteriaOperation.Equal;
}