C# code to find PDF file and move into a Directory

Question

Sir,

 

I am in a ADO.NET Project to find existing pdf file in a directory and move into a new path. I have done almost code but stuck in a code to filter files that have extension of .pdf.

 

Please provide me the code to filter only pdf files

 

Here the c# code I wrote:-

 

In this code I wrote  a existing file name in order to test.