Directory.GetFiles Filter

[Neal]

I'm looping through directories to get a list of all the files in a web folder. I'd like to return only files with certain extensions such as .htm, .html, .asp, .aspx, etc.

From what I can tell, when doing a GetFiles(directory.FullName, Filter) the Filter can only contain something like "*.aspx". How do I filter, efficiently, for certain extensions?

I am currently or'ing together a bunch of EndsWith on the file names but there has to be a better way!

 

[Neal]

I'm running this in a asp.net web page itself trying to view the folder/file structure of the web site

 

[Neal]

The only problem so far is .js is getting picked up because of .jsp is an extension. Need to ensure the entire extension is compared, not "part" of it.

 

[smithd3]

Neal,

Apply a delimiter character "|" to the end of the extension. That should take care of that issue. Do you have it displaying the .aspx files now? I modified the imagebrowser for bv and it displays those files just fine on my test box.

Darrell

 

[Neal]

Yes, I had to do a recursion system as I was missing a few folders. User error! I reverted it to the EndsWith, but I'll change it per your suggestion and give that a whirl! Thanks!

 

[Neal]

Neal,

Apply a delimiter character "|" to the end of the extension. That should take care of that issue. Do you have it displaying the .aspx files now? I modified the imagebrowser for bv and it displays those files just fine on my test box.

Darrell

What is your suggested code change for this? I'm not following

 

[smithd3]

If ValidExtensions.IndexOf(fil.Extension) > -1 Then

changes to

If ValidExtensions.IndexOf(fil.Extension & "|") > -1 Then

Notice that in the ValidExtensions string each file type was delimited by a "|" character. Adding this character to the file extension will allow absolute matches. For example, instead of matching .js the match will be for .js| which will not provide a positive match for .jsp.

Let me know how this works out, I may need it in the future

 

[Neal]

Works like a champ! I'm wrapping up this app I'm working on, you'll see it in action soon as I'll be announcing it here and on the BV forums. I think you'll see the value of what's coming!

 

[smithd3]

I know you'll catch this, but you may need to provide error handling in the event that a file doesn't have an extension. Not sure what happens one of these two I suspect:

1) extension is an empty string which will probably cause a runtime error or
2) you end up matching for "|" which will alway be true.

Later

Darrell