Vb.net file path exists

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. This makes it helpful to call before using other file methods. So Using File. Exists is a way to prevent exceptions from other types. StreamReader, for example, will throw if a file is not found. Exists internally accesses the disk.

This causes an IO read. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. File System. Please rate your experience Yes No. Any additional feedback? The following example takes an array of file or directory names on the command line, determines what kind of name it is, and processes it appropriately.

The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. Trailing spaces are removed from the end of the path parameter before checking whether the directory exists. If you do not have at a minimum read-only permission to the directory, the Exists method will return false. The Exists method returns false if any error occurs while trying to determine if the specified file exists.

This can occur in situations that raise exceptions such as passing a file name with invalid characters or too many characters, a failing or missing disk, or if the caller does not have permission to read the file.