ReadOnlyFileSystemProvider.GetChildren Method

Namespace: Rebex.IO.FileSystem

Assembly: Rebex.FileSystem.dll (version 7.0.9147)

GetChildren(DirectoryNode, NodeType)

Override this method to implement getting a collection of DirectoryNode and/or FileNode objects that are located in the parent and value of their property NodeType is contained in the nodeType.

When the virtual file system is used in the FileServer component, the server session, which contains information about the user and the active connection, can be accessed using Current property.

Declaration

protected abstract IEnumerable<NodeBase> GetChildren(DirectoryNode parent, NodeType nodeType)

Parameters

Type	Name	Description
DirectoryNode	parent	Parent DirectoryNode of the requested children.
NodeType	nodeType	Required type(s) of the returned children.

Returns

Type	Description
IEnumerable<NodeBase>	A collection of DirectoryNode and/or FileNode objects that are contained in the parent and value of their property NodeType is contained in the flag nodeType, or empty IEnumerable<T> if the parent does not have children.

Examples

protected override IEnumerable <NodeBase> GetChildren(DirectoryNode parent, NodeType nodeType)
{
 var parentPath = getFullPath(parent.Path);
 var retChildren = Enumerable.Empty<NodeBase>();

 if ((nodeType & NodeType.Directory) == NodeType.Directory)
 {
   retChildren = retChildren.Union(Directory.EnumerateDirectories(parentPath)
     .Select(dirPath => new DirectoryNode(getNodeName(dirPath), parent)));
 }

 if ((nodeType & NodeType.File) == NodeType.File)
 {
   retChildren = retChildren.Union(Directory.GetFiles(parentPath)
     .Select(filePath => new FileNode(getNodeName(filePath), parent)));
 }

 return retChildren;
}