/// <summary>
/// Updates the search parameter.
/// </summary>
/// <param name="node">The node.</param>
/// <remarks>Documented by Dev08, 2009-03-05</remarks>
private void UpdateSearchAndRefreshList()
{
if (lmIndex == null)
return;
SearchParameter param = new SearchParameter(textBoxSearchBox.Text);
param.SelectedConnectionString = GetSelectedConnectionString();
param.UncPath = GetSelectedSubPathFromUNC();
param.ShowLearningModulesOfSubFolder = learningModulesTreeViewControl.ShowLearningModulesOfSubFolder;
param.AreAllConnectionSelected = selectedTreeViewNode == null ? false : selectedTreeViewNode.IsMainNode;
RefreshListView(param, false);
ResetStatisticsAndPreview();
}
private List<IIndexEntry> FilterList(List<IIndexEntry> items, SearchParameter searchParameter)
{
List<IIndexEntry> textFilteredItems = new List<IIndexEntry>();
if (searchParameter.FilterWords.Trim() == string.Empty)
textFilteredItems.AddRange(items);
else
{
string[] filterWords = searchParameter.FilterWords.ToLower().Split(' ');
foreach (IIndexEntry entry in items)
{
if (entry is FolderIndexEntry)
{
textFilteredItems.Add(entry);
continue;
}
bool wordLocatedInEntry = true;
foreach (string word in filterWords)
{
if (word == string.Empty)
continue;
if (!(entry as LearningModulesIndexEntry).Contains(word))
{
wordLocatedInEntry = false;
break;
}
}
if (wordLocatedInEntry)
textFilteredItems.Add(entry);
}
}
return textFilteredItems;
}
private void RefreshListView(SearchParameter searchParameter, bool preserveSelection)
{
List<ListViewItem> oldSelection = new List<ListViewItem>();
foreach (ListViewItem item in listViewLearningModules.SelectedItems)
oldSelection.Add(item);
List<ListViewItem> oldFeedSelection = new List<ListViewItem>();
foreach (ListViewItem item in listViewFeed.SelectedItems)
oldFeedSelection.Add(item);
if (filterThread != null && filterThread.ThreadState == System.Threading.ThreadState.Running)
filterThread.Abort();
filterThread = new Thread(new ThreadStart((MethodInvoker)delegate
{
if (this.ParentForm.Visible)
{
try
{
List<IIndexEntry> items = FilterList(actualItems, searchParameter);
if (listViewLearningModules.InvokeRequired)
listViewLearningModules.Invoke((MethodInvoker)delegate { LoadLearningModulesList(items, false); });
else
LoadLearningModulesList(items, false);
if (preserveSelection)
listViewLearningModules.Invoke((MethodInvoker)delegate { oldSelection.ForEach(i => i.Selected = true); });
}
catch (ThreadAbortException tae) { Trace.WriteLine(tae.Message); }
catch (Exception ex) { Trace.WriteLine(ex.Message); }
try
{
List<ListViewItem> items = FilterFeedList(actualModules, searchParameter);
if (listViewFeed.InvokeRequired)
listViewFeed.Invoke((MethodInvoker)delegate { LoadFeedList(items, false); });
else
LoadFeedList(items, false);
if (preserveSelection)
listViewFeed.Invoke((MethodInvoker)delegate { oldFeedSelection.ForEach(i => i.Selected = true); });
}
catch (ThreadAbortException tae) { Trace.WriteLine(tae.Message); }
catch (Exception ex) { Trace.WriteLine(ex.Message); }
}
}));
filterThread.Name = "LMPage Filter Thread";
filterThread.CurrentCulture = Thread.CurrentThread.CurrentCulture;
filterThread.CurrentUICulture = Thread.CurrentThread.CurrentUICulture;
filterThread.IsBackground = true;
filterThread.Start();
}
private List<ListViewItem> FilterFeedList(List<ListViewItem> items, SearchParameter searchParameter)
{
List<ListViewItem> textFilteredItems = new List<ListViewItem>();
List<ListViewItem> textFilteredItemsCategoryResults = new List<ListViewItem>();
if (searchParameter.FilterWords.Trim() == string.Empty)
textFilteredItems.AddRange(items);
else
{
string[] filterWords = searchParameter.FilterWords.ToLower().Split(' ');
foreach (ListViewItem entry in items)
{
bool wordLocatedInEntry = true;
bool wordLocatedInCategory = true;
foreach (string word in filterWords)
{
if (word == string.Empty)
continue;
if (!(entry.SubItems[0].Text.ToLower().Contains(word) || entry.SubItems[1].Text.ToLower().Contains(word) ||
entry.SubItems[2].Text.ToLower().Contains(word) || entry.SubItems[3].Text.ToLower().Contains(word) ||
entry.SubItems[4].Text.ToLower().Contains(word)))
{
wordLocatedInEntry = false;
}
if (!(entry.SubItems[2].Text.ToLower().Contains(word) ||
((ModuleInfo)entry.Tag).Categories.Exists(c => FindInParentCategories(Convert.ToInt32(c), word))))
wordLocatedInCategory = false;
}
if (wordLocatedInEntry && !wordLocatedInCategory)
textFilteredItems.Add(entry);
else if (wordLocatedInCategory)
textFilteredItemsCategoryResults.Add(entry);
}
}
foreach (ListViewItem item in textFilteredItems)
textFilteredItemsCategoryResults.Add(item);
return textFilteredItemsCategoryResults;
}
