How to Order by Multiple in Linq

When Ordering custom collection in Linq  using multiple fields you can use OrderBy and ThenBy methods.

Example

private BOMLineDTO[] SortBOMLines(BOMLineDTO[] bomLines)
       {
           BOMLineDTO[] sortedBOMLines = null;

           if (null != bomLines)
           {
               sortedBOMLines = bomLines.OrderBy(record => record.ItemDescription, new BOMLineComparer<StringField>()).
                   ThenBy(record => record.BOMCategoryType, new BOMLineComparer<BasicDataField>()).
                   ThenBy(record => record.GMTColor, new BOMLineComparer<BasicDataField>()).
                   ThenBy(record => record.GMTSize, new BOMLineComparer<BasicDataField>()).ToArray();
           }
           return sortedBOMLines;
       }

Here BOMLineComparer<T> is My own class which is derived form IComparer<T> interface

Related Posts:http://prabodha-eranga.blogspot.com/2012/05/linq-orderby-custom-comparer.html