Interface IVirtualFileProvider
A virtual file provider, that can returns a Stream for a given path.
public interface IVirtualFileProvider : IDisposable- Inherited Members
- Extension Methods
Properties
RootPath
Gets or sets the root path of this provider. See remarks.
string? RootPath { get; }Property Value
- string
- The root path. 
Remarks
All path are relative to the root path.
Methods
CreateDirectory(string)
Creates all directories so that url exists.
void CreateDirectory(string url)Parameters
- urlstring
- The URL. 
DirectoryExists(string)
Determines whether the specified path points to an existing directory.
bool DirectoryExists(string url)Parameters
- urlstring
- The path. 
Returns
FileDelete(string)
Deletes the specified file.
void FileDelete(string url)Parameters
- urlstring
- The URL. 
FileExists(string)
Determines whether the specified path points to an existing file.
bool FileExists(string url)Parameters
- urlstring
- The path. 
Returns
FileMove(string, IVirtualFileProvider, string)
Move the specified file specified from its sourceUrl to the location pointed by destinationUrl in the destination provider. Do not overwrite, throw IOException if the file can't be moved.
void FileMove(string sourceUrl, IVirtualFileProvider destinationProvider, string destinationUrl)Parameters
- sourceUrlstring
- The source URL. 
- destinationProviderIVirtualFileProvider
- The destination provider. 
- destinationUrlstring
- The destination URL, relative to the destination provider. 
FileMove(string, string)
Move the specified file specified from its sourceUrl to the location pointed by destinationUrl. Do not overwrite, throw IOException if the file can't be moved.
void FileMove(string sourceUrl, string destinationUrl)Parameters
FileSize(string)
Returns the size of the specified file in bytes
long FileSize(string url)Parameters
- urlstring
- The file or directory for which to obtain size 
Returns
- long
- A long value representing the file size in bytes 
GetAbsolutePath(string)
Gets the absolute path for the specified local path from this provider.
string GetAbsolutePath(string path)Parameters
- pathstring
- The path local to this instance. 
Returns
- string
- An absolute path. 
GetLastWriteTime(string)
Returns the date and time the specified file or directory was last written to.
DateTime GetLastWriteTime(string url)Parameters
- urlstring
- The file or directory for which to obtain write date and time information. 
Returns
- DateTime
- A DateTime structure set to the date and time that the specified file or directory was last written to. 
ListFiles(string, string, VirtualSearchOption)
Returns the list of files from the specified path.
string[] ListFiles(string path, string searchPattern, VirtualSearchOption searchOption)Parameters
- pathstring
- The path. 
- searchPatternstring
- The search string to match against the names of files in - path. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.
- searchOptionVirtualSearchOption
- One of the enumeration values that specifies whether the search operation should include all subdirectories or only the current directory. 
Returns
- string[]
- A list of files from the specified path 
OpenStream(string, VirtualFileMode, VirtualFileAccess, VirtualFileShare, StreamFlags)
Opens a Stream from the specified path.
Stream OpenStream(string path, VirtualFileMode mode, VirtualFileAccess access, VirtualFileShare share = VirtualFileShare.Read, StreamFlags streamFlags = StreamFlags.None)Parameters
- pathstring
- The path. 
- modeVirtualFileMode
- The mode. 
- accessVirtualFileAccess
- The access. 
- shareVirtualFileShare
- The process sharing mode. 
- streamFlagsStreamFlags
- The type of stream needed 
Returns
- Stream
- The opened stream. 
TryGetFileLocation(string, out string, out long, out long)
Gets the absolute path and location if the specified path physically exist on the disk in an uncompressed form (could be inside another file).
bool TryGetFileLocation(string path, out string filePath, out long start, out long end)Parameters
- pathstring
- The path. 
- filePathstring
- The file containing the data. 
- startlong
- The start offset in the file. 
- endlong
- The end offset in the file (can be -1 if full file). 
Returns
- bool
- True if success, false if not supported and entry is found (note: even when true, the file might not actually exists).