[CLOSED] C# Specified cast is not valid (string to string)

[atroul]

I am trying to check a string if is the same with a cell in the database (i.ArtifactName : nvarchar(225) ).
Why I am getting this error?
Btw if I check with fname it passes the check with no problem

[geoffrey.mcgill]

Given this is not related to Ext.NET, you should post your question at StackOverflow.