Column data type DT_WSTR is not supported by the PipelineBuffer class

This short blog shows you one of the possibilities to resolve the error “Column data type DT_WSTR is not supported by the PipelineBuffer class” when you read from Excel to Database through SSIS

I have been searching the web, people was saying cast this DT_STR to DT_WSTR and so but that all were helpless.

The actual fact in my situation was I checked how SSIS defined the Excel column. Realized is

String T0700

{ get 


       return Buffer.GetString(BufferColumnIndexes[1]);



Somehow my code is using

string OperatorID { get; set; }

I resolve this by changing my code


About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress ( till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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