The string was not recognized as a valid DateTime. There is an unknown word starting at index 0

Question

I have the following C# that is giving me the error above when trying to parse string to datetime.

DateTime backupdate = System.Convert.ToDateTime(imageflowl         


        

Answer 1

I have seen several answers to resolve the situation outlined in this question such as using DateTime.Parse, DateTime.ParseExact, or Convert.ToDateTime. I am trying to determine why the problem is seemlingly inconsistent. I built an application using the Microsoft Enterprise Library Software Factory with a SQL Server 2008 R2 backend and it has been in production for about 9 months now. It has at least 20 instances with the same code format that assign DateTime property values from C# to System.Data.DBType.DateTime parameters for stored procedures. 19 of the 20 code blocks work fine. For the 20th I had to add the .ToString() call as shown below to resolve the error mentioned in this question.

db.AddInParameter(command, "beginDT", DbType.DateTime, timeBlock.BeginDT.ToString());

So anyone have some insight on why would it work fine in 19 absolutely identical instances and not in the 20th? I am just trying to get more of an understanding of the inter-relationship of these objects so I can build solid code. I have since gone back to all other instances and added the .ToString() call. Haven't completed my regression testing though; so, I don't know if that was a mistake.