private void UpdateNavigationControls(int? parentFolderId)
{
if (parentFolderId.HasValue && parentFolderId.Value < 1)
{
parentFolderId = null;
}
DocumentsExchangeModuleController moduleController =
new DocumentsExchangeModuleController();
lstFolders.DataSource = moduleController.GetFolders(parentFolderId);
lstFolders.DataBind();
lstFiles.DataSource = moduleController.GetFiles(parentFolderId);
lstFiles.DataBind();
List<int?> foldersTrace = ViewState[FOLDERS_TRACE] as List<int?> ??
new List<int?>();
if (!foldersTrace.Contains(parentFolderId))
{
foldersTrace.Add(parentFolderId);
}
else
{
if (foldersTrace.IndexOf(parentFolderId) < foldersTrace.Count - 1)
{
foldersTrace.RemoveRange(foldersTrace.IndexOf(parentFolderId) + 1,
foldersTrace.Count - 1 - foldersTrace.IndexOf(parentFolderId));
}
}
ViewState[FOLDERS_TRACE] = foldersTrace;
StringBuilder foldersTraceString = new StringBuilder();
foreach (var folderId in foldersTrace)
{
foldersTraceString.Append(folderId.HasValue
? String.Format(">{0}", folderId.Value)
: String.Format("{0}", "ROOT"));
}
lblFoldersTrace.Text = foldersTraceString.ToString();
UpdateUpButtonVisibility();
}
