protected void tvwMain_SelectedNodeChanged(object sender, System.EventArgs e)
{
TreeViewNodeClickEventArgs args = (TreeViewNodeClickEventArgs)e;
squishyWARE.WebComponents.squishyTREE.TreeNode node = args.Node;
ShowByDirectoryID(Int32.Parse(node.Key));
}
/// <summary>
/// Recursively adds a collection of directories to the treeview.
/// </summary>
/// <param name="directoryLookup">A cache of all the PhotoDirectory objects.</param>
/// <param name="dirBrowser">A reference to a DirectoryBrowser object.</param>
/// <param name="dirs">A collection of PhotoDirectory objects.</param>
/// <param name="parentNode">A reference to the parent tree node object, or null if at the root of the tree view.</param>
private void addDirectoryNodes(Hashtable directoryLookup, DirectoryBrowser dirBrowser,
PhotoDirectories dirs, squishyWARE.WebComponents.squishyTREE.TreeNode parentNode)
{
IEnumerator enumerator = dirs.GetEnumerator();
while (enumerator.MoveNext())
{
PhotoDirectory dir = (PhotoDirectory)enumerator.Current;
squishyWARE.WebComponents.squishyTREE.TreeNode node;
if (parentNode == null)
{
node = tvwMain.AddNode(HttpUtility.HtmlEncode(dir.Name), dir.Id.ToString());
}
else
{
node = parentNode.AddNode(HttpUtility.HtmlEncode(dir.Name), dir.Id.ToString());
}
addDirectoryNodes(directoryLookup, dirBrowser, dir.GetDirectories(), node);
if (!directoryLookup.Contains(dir.Id))
{
directoryLookup.Add(dir.Id, dir);
}
}
}
/// <summary>
/// Expands a given treeview node. Recursively walks up the node's parent's
/// nodes, expanding these as well.
/// </summary>
/// <param name="node">The node to expand.</param>
private void ExpandNode(squishyWARE.WebComponents.squishyTREE.TreeNode node)
{
node.IsExpanded = true;
if (node.ParentNode != null)
{
ExpandNode(node.ParentNode);
}
}
private void InitPage(HttpRequest request)
{
DirectoryBrowser dirBrowser = (DirectoryBrowser)Session["photo_DirectoryBrowser"];
PhotoDirectory CurrentDirectory = (PhotoDirectory)Session["photo_CurrentDirectory"];
if (dirBrowser == null || request.Params["method"] == null)
{
// string photosPath = request.ApplicationPath + Path.DirectorySeparatorChar;
string mappedPhotosDbPath = request.MapPath("") + "\\photos";
if (Session["photo_rootpath"] == null)
{
Response.Write("错误的参数，通知管理员此异常现象");
Response.End();
}
string path = (string)Session["photo_rootpath"];
dirBrowser = new DirectoryBrowser(mappedPhotosDbPath, path);
}
Hashtable directoryLookup = (Hashtable)Session["photo_DirectoryLookup"];
if (directoryLookup == null)
{
directoryLookup = new Hashtable();
}
DisplayTreeview(dirBrowser, directoryLookup);
// expand out the current directory node
int directoryID = -1;
if (CurrentDirectory != null)
{
directoryID = CurrentDirectory.Id;
}
else if (request.Params["directoryID"] != null)
{
directoryID = Int32.Parse(request.Params["directoryID"]);
}
else
{
PhotoObjectBase pd1 = dirBrowser.rootDir.GetByIndex(0);
directoryID = pd1.Id;
}
squishyWARE.WebComponents.squishyTREE.TreeNode node = tvwMain.FindTreeNode(directoryID.ToString());
ExpandNode(node);
Session.Add("photo_DirectoryBrowser", dirBrowser);
Session.Add("photo_DirectoryLookup", directoryLookup);
// Must be called after DisplayTreeview
ProcessMethod(request, directoryLookup, directoryID);
}
private void Page_Load(object sender, System.EventArgs e)
{
HttpRequest request = Context.Request;
tvwMain.WindowsLafImageBase = @"PhotoBrowserRes\Treeview\";
tvwMain.TreeOutputStyle = TreeOutputStyle.WindowsLookAndFeel;
tvwMain.NodeDisplayStyle = NodeDisplayStyle.Standard;
// We only get a post back if the user is navigating via the treeview control.
// If we've not got a postback then we need to display correct state of the
// control.
if (!IsPostBack)
{
DirectoryBrowser dirBrowser = (DirectoryBrowser)Session["DirectoryBrowser"];
if (dirBrowser == null || request.Params["method"] == null)
{
string photosPath = request.ApplicationPath + Path.DirectorySeparatorChar;
string mappedPhotosPath = request.MapPath(photosPath) + "photos";
dirBrowser = new DirectoryBrowser(mappedPhotosPath);
}
Hashtable directoryLookup = (Hashtable)Session["DirectoryLookup"];
if (directoryLookup == null)
{
directoryLookup = new Hashtable();
}
DisplayTreeview(dirBrowser, directoryLookup);
// Must be called after DisplayTreeview
ProcessMethod(request, directoryLookup);
// expand out the current directory node
if (request.Params["directoryID"] != null)
{
int directoryID = Int32.Parse(request.Params["directoryID"]);
squishyWARE.WebComponents.squishyTREE.TreeNode node = tvwMain.FindTreeNode(directoryID.ToString());
ExpandNode(node);
}
Session.Add("DirectoryBrowser", dirBrowser);
Session.Add("DirectoryLookup", directoryLookup);
}
pnlImageNavigationBottom.Visible = DISPLAY_BOTTOM_IMAGE_NAVIGATION;
}
private void tvwMain_SelectedNodeChanged(object sender, System.EventArgs e)
{
pnlComments.Visible = false;
TreeViewNodeClickEventArgs args = (TreeViewNodeClickEventArgs)e;
squishyWARE.WebComponents.squishyTREE.TreeNode node = args.Node;
// Retrieve the relevant PhotoDirectory object from the lookup, keyed on the
// unique ID
Hashtable directoryLookup = (Hashtable)Context.Session["DirectoryLookup"];
PhotoDirectory dir = (PhotoDirectory)directoryLookup[Int32.Parse(node.Key)];
GeneratePhotosTable(dir, 1);
Session.Add("CurrentDirectory", dir);
}