private static NListBoxItem CreateTestListBoxItem(NRichTextToHtmlExample example)
{
NListBoxItem item = new NListBoxItem(example.Title);
item.Tag = example;
return(item);
}
private NGroupBox CreatePredefinedDocumentGroupBox()
{
const string DocxSuffix = "_docx";
NListBox testListBox = new NListBox();
string[] resourceName = NResources.Instance.GetResourceNames();
for (int i = 0, count = resourceName.Length; i < count; i++)
{
string resName = resourceName[i];
if (resName.EndsWith(DocxSuffix, StringComparison.Ordinal))
{
// The current resource is a DOCX document, so add it to the list box
string testName = resName.Substring(0, resName.Length - DocxSuffix.Length);
testName = testName.Substring(testName.LastIndexOf('_') + 1);
NListBoxItem item = new NListBoxItem(NStringHelpers.InsertSpacesBeforeUppersAndDigits(testName));
item.Tag = resName;
testListBox.Items.Add(item);
}
}
testListBox.Selection.Selected += OnListBoxItemSelected;
testListBox.Selection.SingleSelect(testListBox.Items[1]);
return(new NGroupBox("Predefined DOCX documents", testListBox));
}
private void OnAddButtonClick(NEventArgs args)
{
int index;
string value = "0";
if (m_ListBox.Items.Count > 0)
{
NListBoxItem lastItem = m_ListBox.Items[m_ListBox.Items.Count - 1];
NLabel label = (NLabel)lastItem.GetDescendants(new NInstanceOfSchemaFilter(NLabel.NLabelSchema))[0];
value = label.Text;
value = value.Remove(0, value.LastIndexOf(' ') + 1);
}
// Add an item with the calculated index
index = Int32.Parse(value) + 1;
NListBoxItem item = new NListBoxItem("Item " + index);
item.Tag = index;
m_ListBox.Items.Add(item);
if (m_ListBox.Items.Count == 1)
{
m_RemoveAllButton.Enabled = true;
}
}
public override void Initialize()
{
base.Initialize();
nComboBox1.KeyPress += new KeyPressEventHandler(nComboBox1_KeyPress);
m_ColorMode.Items.Add("Known Colors");
m_ColorMode.Items.Add("Web Colors");
m_ColorMode.Items.Add("System Colors");
m_ColorMode.SelectedIndex = 0;
//init some items
NListBoxItem item;
for (int i = 0; i < 10; i++)
{
item = new NListBoxItem();
item.Text = "List item " + (i + 1).ToString();
item.ImageIndex = i;
nComboBox1.Items.Add(item);
nComboBox2.Items.Add(item);
nComboBox4.Items.Add(item);
}
nComboBox2.Editable = true;
m_PropertyGrid.PropertyValueChanged += new PropertyValueChangedEventHandler(m_PropertyGrid_PropertyValueChanged);
m_PropertyGrid.SelectedObject = nComboBox1.ListProperties;
}
private void OnTestListBoxItemSelected(NSelectEventArgs <NListBoxItem> arg1)
{
NListBoxItem selectedItem = arg1.Item;
if (selectedItem == null)
{
return;
}
NRichTextToHtmlExample example = selectedItem.Tag as NRichTextToHtmlExample;
if (example == null)
{
return;
}
// Recreate the content of the Nevron rich text widget
NDocumentBlock documentRoot = example.CreateDocument();
NRichTextDocument document = new NRichTextDocument();
document.Content = documentRoot;
document.Evaluate();
m_RichText.Document = document;
ExportToHtml();
}
private void OnListBoxItemDeselected(NSelectEventArgs <NListBoxItem> args)
{
NListBoxItem item = args.Item;
int index = item.GetAggregationInfo().Index;
m_EventsLog.LogEvent("Deselected Item: " + index.ToString());
}
internal void FillSkinCombo()
{
NSkinResourceInfo[] arrSkinInfo = m_MainForm.Config.AvailableSkins;
if (arrSkinInfo == null)
{
return;
}
//add the "Use global skin" item
NListBoxItem item = new NListBoxItem();
item.Text = "Use global skin";
this.skinCombo.Items.Add(item);
int length = arrSkinInfo.Length;
for (int i = 0; i < length; i++)
{
item = new NListBoxItem();
item.Text = arrSkinInfo[i].SkinDisplayName;
item.Tag = arrSkinInfo[i].SkinResourceName;
skinCombo.Items.Add(item);
}
skinCombo.SelectedIndex = 0;
skinCombo.SelectedIndexChanged += new EventHandler(skinCombo_SelectedIndexChanged);
}
public override void Initialize()
{
base.Initialize();
nColorListBox1.PopulateKnownColors();
nColorListBox2.PopulateWebColors();
nColorListBox3.PopulateSystemColors();
Color c;
NListBoxItem item;
nColorListBox4.BeginUpdate();
for (int i = 0; i < 256; i += 30)
{
for (int j = 0; j < 256; j += 30)
{
for (int k = 0; k < 256; k += 30)
{
c = Color.FromArgb(i, j, k);
item = new NListBoxItem(c);
item.Text = ColorTranslator.ToHtml(c);
nColorListBox4.Items.Add(item);
}
}
}
nColorListBox4.EndUpdate();
}
public override void Initialize()
{
base.Initialize();
NTreeViewExUC.AddTestNodes(nTreeViewEx1, 10, 3);
//init sample filters
NFilter simpleFilter = new NTreeNodeTextFilter("Sample Tree Node 1", CommonStringOptions.Contains, true);
NAndFilter compositeFilter = new NAndFilter();
compositeFilter.Add(new NTreeNodeTextFilter("Sample Tree Node 1", CommonStringOptions.Contains, true));
compositeFilter.Add(new NTreeNodeTextFilter("Depth: 0", CommonStringOptions.Contains, true));
NListBoxItem item = new NListBoxItem();
item.Text = "No Filter";
filterCombo.Items.Add(item);
item = new NListBoxItem(simpleFilter);
item.Text = "Simple Text Filter";
filterCombo.Items.Add(item);
item = new NListBoxItem(compositeFilter);
item.Text = "Composite 'And' Filter";
filterCombo.Items.Add(item);
filterCombo.SelectedIndex = 0;
}
public override void Initialize()
{
base.Initialize();
m_XPBackgroundCheck.Checked = nTabControl1.DrawThemeBackground;
m_TabStyleCombo.FillFromEnum(typeof(TabStyle), false);
m_TabStyleCombo.SelectedItem = TabStyle.Standard;
m_TabAlignCombo.FillFromEnum(typeof(TabAlign), false);
m_TabAlignCombo.SelectedItem = TabAlign.Top;
m_TextOrientationCombo.FillFromEnum(typeof(TextOrientation), false);
m_TextOrientationCombo.SelectedItem = TextOrientation.Automatic;
m_DefRenderer = new NTabControlRenderer(nTabControl1);
m_CustomRenderer = new NCustomTabControlRenderer(nTabControl1);
NListBoxItem item;
item = new NListBoxItem(m_DefRenderer);
item.Text = "Default Renderer";
m_RenderersCombo.Items.Add(item);
item = new NListBoxItem(m_CustomRenderer);
item.Text = "Custom Renderer";
m_RenderersCombo.Items.Add(item);
m_RenderersCombo.SelectedIndex = 0;
//nTabPage1.Text = "Long text tab page";
nTabControl1.HasClose = true;
}
private void OnListBoxItemSelected(NSelectEventArgs <NListBoxItem> arg)
{
NListBoxItem selectedItem = arg.Item;
switch (selectedItem.Text)
{
case EnglishLanguageName:
// Load the English dictionary
m_EnglishStream.Position = 0;
NLocalizationDictionary.Instance.LoadFromStream(m_EnglishStream);
break;
case BulgarianLanguageName:
// Load the Bulgarian dictionary
m_BulgarianStream.Position = 0;
NLocalizationDictionary.Instance.LoadFromStream(m_BulgarianStream);
break;
case GermanLanguageName:
// Load the German dictionary
m_GermanStream.Position = 0;
NLocalizationDictionary.Instance.LoadFromStream(m_GermanStream);
break;
}
// Recreate the Loan Calculator
m_CalculatorHost.Content = CreateLoanCalculator();
}
public override void Initialize()
{
base.Initialize();
int count = 10;
NListBoxItem item1, item2, item3, item4, item5;
for (int i = 0; i < count; i++)
{
item1 = new NListBoxItem(i, "Item " + i, false);
item2 = new NListBoxItem(i, "Item " + i, false);
item3 = new NListBoxItem(i, "Item " + i, false);
item4 = new NListBoxItem(i, "Item " + i, false);
item5 = new NListBoxItem(i, "Item " + i, false);
nListBox1.Items.Add(item1);
nListBox2.Items.Add(item2);
nListBox3.Items.Add(item3);
nListBox4.Items.Add(item4);
nListBox5.Items.Add(item5);
}
nListBox1.ImageList = MainForm.TestImages;
nListBox2.ImageList = MainForm.TestImages;
nListBox3.ImageList = MainForm.TestImages;
nListBox4.ImageList = MainForm.TestImages;
nListBox5.ImageList = MainForm.TestImages;
m_CheckStyleCombo.ListProperties.ColumnOnLeft = false;
m_CheckStyleCombo.FillFromEnum(typeof(CheckStyle), false);
m_CheckStyleCombo.SelectedItem = CheckStyle.Standard;
m_CheckStyleCombo.SelectedIndexChanged += new EventHandler(m_CheckStyleCombo_SelectedIndexChanged);
}
public override void Initialize()
{
base.Initialize();
// no skin item
NListBoxItem item = new NListBoxItem();
item.Text = "None";
item.Tag = null;
skinCombo.Items.Add(item);
try
{
NSkinResourceInfo[] arrSkinInfo = m_MainForm.Config.AvailableSkins;
if (arrSkinInfo != null)
{
int length = arrSkinInfo.Length;
for (int i = 0; i < length; i++)
{
item = new NListBoxItem();
item.Text = arrSkinInfo[i].SkinDisplayName;
item.Tag = arrSkinInfo[i].SkinResourceName;
skinCombo.Items.Add(item);
}
}
}
catch
{
}
m_iSuspendUpdate++;
enableSkinManagerCheck.Checked = NSkinManager.Instance.Enabled;
m_iSuspendUpdate--;
}
/// <summary>
/// Called when a request has been completed. Updates the item for the request.
/// </summary>
/// <param name="request"></param>
private void UpdateRequestListBoxItem(NHttpRequest request, NHttpResponse response)
{
// first clear the boder of all items
for (int i = 0; i < m_RequestsListBox.Items.Count; i++)
{
m_RequestsListBox.Items[i].Border = null;
}
// highlight the completed item in red
NListBoxItem item = m_Request2ListBoxItem[request];
item.Border = NBorder.CreateFilledBorder(NColor.LightCoral);
// update the group box header
NGroupBox groupBox = (NGroupBox)item.Content;
NLabel headerLabel = (NLabel)groupBox.Header.Content;
headerLabel.Text += " Response Status: " + response.Status.ToString() + ", Received In: " + (response.ReceivedAt - request.SentAt).TotalSeconds.ToString() + " seconds";
// Disable the Abort button (the first button of the item (first descentant of type button))
NButton abortButton = (NButton)item.GetFirstDescendant(NIsFilter <NNode, NButton> .Instance);
abortButton.Enabled = false;
// Enable the Headers Button (the last button of the item)
NButton headersButton = (NButton)item.GetLastDescendant(NIsFilter <NNode, NButton> .Instance);
headersButton.Tag = new object[] { request, response };
headersButton.Enabled = true;
}
private void protectionListBox_CheckedChanged(object sender, Nevron.UI.WinForm.Controls.NListBoxItemCheckEventArgs e)
{
if (EventsHandlingPaused)
{
return;
}
NShape shape = (view.Selection.AnchorNode as NShape);
if (shape == null)
{
return;
}
PauseEventsHandling();
for (int i = 0; i < protectionListBox.Items.Count; i++)
{
NListBoxItem item = protectionListBox.Items[i];
NAbilities protection = shape.Protection;
if (item.Checked)
{
protection.Mask = protection.Mask | (AbilitiesMask)item.Tag;
}
else
{
protection.Mask = protection.Mask & ~(AbilitiesMask)item.Tag;
}
shape.Protection = protection;
}
document.SmartRefreshAllViews();
ResumeEventsHandling();
}
private void OnListBoxItemSelected(NSelectEventArgs <NListBoxItem> args)
{
m_RemoveSelectedButton.Enabled = true;
NListBoxItem item = args.Item;
m_EventsLog.LogEvent("Selected Item: " + item.Tag.ToString());
}
/// <summary>
/// Appends (logs) the specified event description.
/// </summary>
/// <param name="eventStr"></param>
public void LogEvent(string eventStr)
{
if (m_LogEventCheck.Checked)
{
NListBoxItem item = new NListBoxItem(m_nEventCounter + ". " + eventStr);
m_EventsListBox.Items.Add(item);
m_EventsListBox.EnsureVisible(item);
m_nEventCounter++;
}
}
private NListBoxItem CreateListBoxItem(NImage icon, string languageName)
{
NPairBox pairBox = new NPairBox(icon, languageName, ENPairBoxRelation.Box1BeforeBox2);
pairBox.Spacing = NDesign.VerticalSpacing;
NListBoxItem item = new NListBoxItem(pairBox);
item.Text = languageName;
return(item);
}
public override void Initialize()
{
base.Initialize();
Dock = DockStyle.Fill;
m_SeparatorsCheck.Checked = m_StatusBar.Separators;
Controls.Add(m_StatusBar);
m_ControlCombo.Items.Add("(none)");
m_ControlCombo.Items.Add("TextBox");
m_ControlCombo.Items.Add("ComboBox");
m_ControlCombo.Items.Add("Button");
m_ControlCombo.Items.Add("NumericUpDown");
m_ControlCombo.Items.Add("CheckBox");
m_ControlCombo.Items.Add("RadioButton");
m_ControlCombo.Items.Add("ProgressBar");
m_BackColorButton.Color = m_StatusBar.BackColor;
m_ForeColorButton.Color = m_StatusBar.Palette.ControlText;
//populate autosize combobox
m_AutoSizeCombo.FillFromEnum(typeof(StatusBarPanelAutoSize), false);
m_AutoSizeCombo.SelectedIndex = 0;
//populate alignment combobox
m_AlignmentCombo.FillFromEnum(typeof(HorizontalAlignment), false);
m_AlignmentCombo.SelectedIndex = 0;
//populate borderstyle combobox
m_BorderStyleCombo.FillFromEnum(typeof(BorderStyle3D), false);
m_BorderStyleCombo.SelectedItem = BorderStyle3D.Flat;
//populate gripperstyle combobox
m_GripperStyleCombo.FillFromEnum(typeof(GripperStyle), false);
m_GripperStyleCombo.SelectedItem = m_StatusBar.GripperStyle;
//populate imageindex combobox
NListBoxItem item;
item = new NListBoxItem(-1, "(none)", false);
m_ImageIndexCombo.Items.Add(item);
m_ImageIndexCombo.ImageList = MainForm.TestImages;
for (int i = 0; i < MainForm.TestImages.Images.Count; i++)
{
item = new NListBoxItem(i, i.ToString(), false);
m_ImageIndexCombo.Items.Add(item);
}
}
private void OnRemoveAttributeButtonClick(NEventArgs arg)
{
NTopLevelWindow dialog = NApplication.CreateTopLevelWindow();
dialog.SetupDialogWindow("Select an Attribute to Remove", false);
NListBox listBox = new NListBox();
NElementInfo elementInfo = (NElementInfo)m_TreeView.SelectedItem.Tag;
INIterator <NKeyValuePair <string, string> > iter = elementInfo.Attributes.GetIterator();
while (iter.MoveNext())
{
listBox.Items.Add(new NListBoxItem(iter.Current.Key));
}
NButtonStrip buttonStrip = new NButtonStrip();
buttonStrip.InitOKCancelButtonStrip();
NPairBox pairBox = new NPairBox(listBox, buttonStrip, ENPairBoxRelation.Box1AboveBox2);
pairBox.Spacing = NDesign.VerticalSpacing;
dialog.Content = pairBox;
dialog.Opened += delegate(NEventArgs args) {
listBox.Focus();
};
dialog.Closed += delegate(NEventArgs args) {
if (dialog.Result == ENWindowResult.OK)
{
// Remove the selected attribute
NListBoxItem selectedItem = listBox.Selection.FirstSelected;
if (selectedItem != null)
{
string name = ((NLabel)selectedItem.Content).Text;
elementInfo.Attributes.Remove(name);
UpdateTreeViewItemText(m_TreeView.SelectedItem);
if (elementInfo.Attributes.Count == 0)
{
m_RemoveAttributeButton.Enabled = false;
}
}
}
};
dialog.Open();
}
internal void InitDataSourceCombo()
{
NListBoxItem item;
item = new NListBoxItem("None");
dataSourceCombo.Items.Add(item);
item = new NListBoxItem("Array List");
dataSourceCombo.Items.Add(item);
item = new NListBoxItem("Data Set");
dataSourceCombo.Items.Add(item);
dataSourceCombo.SelectedIndex = 0;
}
private LabelFitMode[] GetLabelFitModesFromListBox(NListBox listBox)
{
ArrayList arrFitModes = new ArrayList();
for (int i = 0; i < listBox.Items.Count; i++)
{
NListBoxItem item = listBox.Items[i];
if (item.Checked)
{
arrFitModes.Add((LabelFitMode)i);
}
}
return((LabelFitMode[])arrFitModes.ToArray(typeof(LabelFitMode)));
}
private void addBtn_Click(object sender, System.EventArgs e)
{
NRadioBoxElement box = new NRadioBoxElement();
m_arrButtons.Add(box);
box.Text = "Test <b>Radio</b> Button " + m_arrButtons.Count;
NListBoxItem item = new NListBoxItem();
item.Tag = box;
item.Text = "Button " + m_arrButtons.Count;
buttonsList.Items.Add(item);
buttonProperties.SelectedObject = box;
}
private void UpdateProtectionListBox()
{
NShape shape = (view.Selection.AnchorNode as NShape);
if (shape == null)
{
protectionGroupBox.Enabled = false;
return;
}
protectionGroupBox.Enabled = true;
for (int i = 0; i < protectionListBox.Items.Count; i++)
{
NListBoxItem item = protectionListBox.Items[i];
item.Checked = shape.Protection.Contains((AbilitiesMask)item.Tag);
}
}
private void OnCountryDataBindingCreateItemNode(NCreateItemNodeEventArgs <NListBoxItem, NCountry> args)
{
NCountry country = args.Item;
// Create a stack panel
NStackPanel stack = new NStackPanel();
stack.Padding = new NMargins(3);
stack.Tag = country;
// Create the flag image box and the country name label
NLabel countryLabel = new NLabel(country.Name);
countryLabel.VerticalPlacement = ENVerticalPlacement.Center;
countryLabel.Font = new NFont(NFontDescriptor.DefaultSansFamilyName, 10, ENFontStyle.Bold);
NImageBox imageBox = new NImageBox(country.Flag);
imageBox.VerticalPlacement = ENVerticalPlacement.Center;
imageBox.HorizontalPlacement = ENHorizontalPlacement.Left;
NPairBox pairBox = new NPairBox(imageBox, countryLabel);
pairBox.Spacing = 3;
stack.Add(pairBox);
// Create the capital label
NLabel capitalLabel = new NLabel("Capital: " + country.Capital);
stack.Add(capitalLabel);
// Create the currency label
NLabel currencyLabel = new NLabel("Currency: " + country.CurrencyName + ", " +
country.CurrencyCode);
stack.Add(currencyLabel);
// Create a list box item to host the created widget
NListBoxItem listBoxItem = new NListBoxItem(stack);
listBoxItem.Text = country.Name;
args.Node = listBoxItem;
}
private void InitFormControls()
{
PauseEventsHandling();
// init the active tool combo
activeToolCombo.Items.Clear();
NListBoxItem item;
item = new NListBoxItem(0, "Pointer Tool", false);
activeToolCombo.Items.Add(item);
item = new NListBoxItem(2, "Create Ellipse", false);
activeToolCombo.Items.Add(item);
item = new NListBoxItem(16, "Pan Tool", false);
activeToolCombo.Items.Add(item);
item = new NListBoxItem(-1, "Custom Tool", false);
activeToolCombo.Items.Add(item);
// init the toolIndexToNamesMap
toolIndexToNamesMap.Clear();
toolIndexToNamesMap[0] = new string[] { NDWFR.ToolCreateGuideline,
NDWFR.ToolHandle,
NDWFR.ToolMove,
NDWFR.ToolSelector,
NDWFR.ToolContextMenu,
NDWFR.ToolKeyboard,
NDWFR.ToolInplaceEdit };
toolIndexToNamesMap[1] = new string[] { NDWFR.ToolCreateEllipse };
toolIndexToNamesMap[2] = new string[] { NDWFR.ToolPan };
toolIndexToNamesMap[3] = new string[] { "Custom Tool" };
// by default select the pointer tool
activeToolCombo.SelectedIndex = 0;
ResumeEventsHandling();
}
/// <summary>
/// Called when a request is about to be submitted. Adds a new entry in the requests list box.
/// </summary>
/// <param name="request"></param>
private void CreateRequestListBoxItem(NHttpRequest request)
{
NGroupBox groupBox = new NGroupBox(new NLabel("URI: " + request.Uri.ToString()));
groupBox.HorizontalPlacement = ENHorizontalPlacement.Fit;
NStackPanel stack = new NStackPanel();
stack.HorizontalPlacement = ENHorizontalPlacement.Fit;
groupBox.Content = stack;
NStackPanel hstack = new NStackPanel();
hstack.Direction = ENHVDirection.LeftToRight;
hstack.HorizontalPlacement = ENHorizontalPlacement.Fit;
hstack.FillMode = ENStackFillMode.None;
hstack.FitMode = ENStackFitMode.Equal;
stack.Add(hstack);
// create the abort button.
// NOTE: the request is recorded in the button Tag
NButton abortButton = new NButton("Abort");
abortButton.Click += new Function <NEventArgs>(OnAbortRequestButtonClick);
abortButton.Tag = request;
hstack.Add(abortButton);
NButton headersButton = new NButton("View Response Headers");
headersButton.Click += new Function <NEventArgs>(OnViewResponseHeadersButtonClick);
headersButton.Tag = request;
headersButton.Enabled = false;
hstack.Add(headersButton);
// add item
NListBoxItem item = new NListBoxItem(groupBox);
item.BorderThickness = new NMargins(2);
item.Border = null;
m_RequestsListBox.Items.Add(item);
m_Request2ListBoxItem.Add(request, item);
}
internal void InitComboBoxContexts()
{
NComboBoxCommandContext c = new NComboBoxCommandContext();
c.Properties.ImageList = MainForm.TestImages;
c.Properties.Text = "ComboBox";
c.Properties.ID = (int)Contexts.ComboBoxContext1;
c.RangeID = 6;
c.PrefferedWidth = 150;
NListBoxItem item;
for (int i = 0; i < 20; i++)
{
item = new NListBoxItem(i, "NListBoxItem " + i, false);
c.Items.Add(item);
}
m_Manager.Contexts.Add(c);
c = new NComboBoxCommandContext();
c.Properties.Text = "Editable ComboBox";
c.Properties.ImageList = MainForm.TestImages;
c.Editable = true;
c.Properties.ID = (int)Contexts.ComboBoxContext2;
c.RangeID = 6;
c.PrefferedWidth = 150;
for (int i = 0; i < 20; i++)
{
item = new NListBoxItem(i, "NListBoxItem " + i, false);
c.Items.Add(item);
}
m_Manager.Contexts.Add(c);
c = new NFontComboBoxCommandContext();
c.Properties.Text = "Font Combo";
c.Properties.ID = (int)Contexts.ComboBoxContext3;
c.RangeID = 6;
c.PrefferedWidth = 200;
m_Manager.Contexts.Add(c);
}
void PopulateAvailableCommands()
{
m_AvailableCommandsCombo.Items.Clear();
//m_AvailableCommandsCombo.DropDownWidth = 300;
NDockingFrameworkCommand[] commands = nDockManager1.Commander.Commands;
int length = commands.Length;
NDockingFrameworkCommand comm;
NListBoxItem item;
for (int i = 0; i < length; i++)
{
comm = commands[i];
item = new NListBoxItem();
item.Text = comm.Name + " - ID: " + comm.ID;
item.Tag = comm;
m_AvailableCommandsCombo.Items.Add(item);
}
}
protected override NWidget CreateExampleContent()
{
// Create a list box
m_ListBox = new NListBox();
m_ListBox.HorizontalPlacement = ENHorizontalPlacement.Left;
m_ListBox.PreferredSize = new NSize(200, 400);
// Add some items
for (int i = 0; i < 10; i++)
{
NListBoxItem item = new NListBoxItem("Item " + i.ToString());
item.Tag = i;
m_ListBox.Items.Add(item);
}
// Hook to list box selection events
m_ListBox.Selection.Selected += new Function <NSelectEventArgs <NListBoxItem> >(OnListBoxItemSelected);
m_ListBox.Selection.Deselected += new Function <NSelectEventArgs <NListBoxItem> >(OnListBoxItemDeselected);
return(m_ListBox);
}