File exists vb.net

Exists call, it uses an if-statement. In the second call, it stores the result of File. Exists in a boolean value. NET program that uses File. Exists Imports System. If File. Exists "TextFile1. WriteLine "The file exists. Exists internally accesses the disk. This causes an IO read. Sometimes it is better to simply try to read a file, as with StreamReader. This program calls File. Exists twice.

Please notice first how it imports the System. IO namespace. Around the first File. Exists call, it uses an if-statement. In the second call, it stores the result of File. Exists in a boolean value. Tip File. Exists will not throw an exception if the file does not exist.

File System. Please rate your experience Yes No. Any additional feedback? Namespace: Microsoft. FileIO Assembly: Microsoft. File name can be anything eg:pic. I need to check if "pic" name exists in the path. You'll want to check the File. Exists method. Don't forget, this only work for finding files on the server, not the client.

Finding a file on the client side is a totaly different mather. You can get the list of files in the given directory and then check the filenames to see if the fragment of text you're looking for is in any of them.

Assuming you want to include the extension in the test and you don't care if it is upper or lower case:. Or you can do it in one line with LINQ, and if you are using. EnumerateFiles instead of. GetFiles , which has a chance of being faster:. You should use Directory. GetFiles path, pattern to check if it returns some files corresponding to your pattern.