public virtual bool CanMoveTo(FileDataBase destination)
{
if (destination.TreeNode.NodeType == TreeNodeType.File)
{
if (destination.ParentFolder == this.ParentFolder)
{
return(false);
}
}
else if (destination.TreeNode.NodeType == TreeNodeType.Folder)
{
FileDataBase ancestor = destination;
while ((ancestor = ancestor.ParentFolder) != null)
{
if (ancestor == this)
{
return(false);
}
}
if (destination == this.ParentFolder)
{
return(false);
}
}
return(true);
}
public override bool CanMoveTo(FileDataBase destination)
{
if (destination.TreeNode.NodeType == TreeNodeType.File)
{
if (destination.ParentFolder == this)
{
return(false);
}
}
return(base.CanMoveTo(destination));
}
public void Remove(FileDataBase fileData)
{
if (fileData != null)
{
if (fileData.TreeNode.NodeType == TreeNodeType.File)
{
this.Remove(fileData as FileData);
}
else if (fileData.TreeNode.NodeType == TreeNodeType.Folder)
{
this.Remove(fileData as FolderData);
}
}
}
public virtual void MoveTo(FileDataBase destination)
{
this.ParentFolder.Remove(this);
if (destination.TreeNode.NodeType == TreeNodeType.File)
{
destination.ParentFolder.Add(this);
}
else if (destination.TreeNode.NodeType == TreeNodeType.Folder)
{
(destination as FolderData).Add(this);
}
else
{
throw new NotImplementedException(destination.TreeNode.NodeType.ToString());
}
}
public TreeNodeModel(FileDataBase fileData)
{
if (fileData == null)
{
throw new ArgumentNullException("fileData in TreeNodeModel .ctor");
}
if (fileData is FileData)
{
this.nodeType = TreeNodeType.File;
}
else if (fileData is FolderData)
{
this.nodeType = TreeNodeType.Folder;
}
else
{
throw new ArgumentException("does not support this type of fileData");
}
this.fileData = fileData;
}
