Can you call Directory.GetFiles() with multiple filters?

Question

I am trying to use the Directory.GetFiles() method to retrieve a list of files of multiple types, such as mp3\'s and jpg\'s. I have t

Answer 1

Using GetFiles search pattern for filtering the extension is not safe!! For instance you have two file Test1.xls and Test2.xlsx and you want to filter out xls file using search pattern *.xls, but GetFiles return both Test1.xls and Test2.xlsx I was not aware of this and got error in production environment when some temporary files suddenly was handled as right files. Search pattern was *.txt and temp files was named *.txt20181028_100753898 So search pattern can not be trusted, you have to add extra check on filenames as well.