Tonight while building out some admin screens, I ran into a minor issue with Ambrose's SortableCollectionBase object[^]. In a situation where your collection has no records, an exception is thrown. Although this makes sense, it was not my intended behavior. So, I put in a fix. In the Sort(string sortExpression) method, I added a little bit of error trapping to look for this situation. Here's the code. If you want a friendlier error message than what you currently get with this object, just uncomment the throw line:

143public void Sort(string sortExpression)  144{  145    #region Parameter Checks  146    if (sortExpression == null)  147        throw new ArgumentNullException("sortExpression", "Argument cannot be null.");  148    #endregion  149  150    if(this.InnerList.Count > 0)  151    {  152        this.InnerList.Sort(this.GetMultiComparer(this.List[0].GetType(), sortExpression));  153    }  154    else  155    {  156        //throw new ApplicationException(string.Format("The collection you are attempting to sort has '{0}' records in it. Because of this, the sorting operation failed.",this.InnerList.Count));  157    }  158}  159