private void OnComboBoxSelectedIndexChanged(NValueChangeEventArgs args)
{
if (m_bSelectionUpdating)
{
m_bSelectionUpdating = false;
return;
}
// Get the list box and the other list box
int selectedIndex = (int)args.NewValue;
NComboBox comboBox = (NComboBox)args.TargetNode;
NComboBox otherComboBox = comboBox == m_ComboBox ? m_AdvancedComboBox : m_ComboBox;
// Log the selection
NComboBoxItem selectedItem = comboBox.SelectedItem;
NCountry country = NNodeCollectionDataBinding <NComboBoxItemCollection, NComboBoxItem, NCountry> .GetDataBoundItem(selectedItem);
m_EventsLog.LogEvent("'" + country.Name + "' selected");
// Synchronize the selection between the two list boxes
m_bSelectionUpdating = true;
otherComboBox.SelectedIndex = selectedIndex;
}
private void OnListBoxItemSelected(NSelectEventArgs <NListBoxItem> args)
{
if (m_bSelectionUpdating)
{
m_bSelectionUpdating = false;
return;
}
// Get the list box and the other list box
NListBox listBox = (NListBox)args.Item.OwnerListBox;
NListBox otherListBox = listBox == m_ListBox ? m_AdvancedListBox : m_ListBox;
// Log the selection
NListBoxItem selectedItem = listBox.Selection.FirstSelected;
NCountry country = NNodeCollectionDataBinding <NListBoxItemCollection, NListBoxItem, NCountry> .GetDataBoundItem(selectedItem);
m_EventsLog.LogEvent("'" + country.Name + "' selected");
// Synchronize the selection between the two list boxes
m_bSelectionUpdating = true;
int selectedIndex = listBox.Items.IndexOf(selectedItem);
otherListBox.Selection.SingleSelect(otherListBox.Items[selectedIndex]);
}
protected override NWidget CreateExampleContent()
{
NStackPanel stack = new NStackPanel();
stack.HorizontalPlacement = ENHorizontalPlacement.Left;
stack.VerticalPlacement = ENVerticalPlacement.Top;
stack.VerticalSpacing = 10;
// Load the contry data
NList <NCountry> countries = LoadCountryData();
// Create the simple combo box
m_ComboBox = new NComboBox();
NPairBox pairBox = CreatePairBox("Select country:", m_ComboBox);
stack.Add(new NGroupBox("Data source items -> Labels", pairBox));
// Create the simple data binding
NNodeCollectionDataBinding <NComboBoxItemCollection, NComboBoxItem, NCountry> countryNameDataBinding =
new NNodeCollectionDataBinding <NComboBoxItemCollection, NComboBoxItem, NCountry>();
NDataBinding.SetDataBinding(m_ComboBox.Items, countryNameDataBinding);
countryNameDataBinding.DataSource = countries;
countryNameDataBinding.CreateItemNode += new Function <NCreateItemNodeEventArgs <NComboBoxItem, NCountry> >(OnCountryNameDataBindingCreateItemNode);
countryNameDataBinding.RebuildTarget();
// Create the advanced combo box
m_AdvancedComboBox = new NComboBox();
pairBox = CreatePairBox("Select country:", m_AdvancedComboBox);
stack.Add(new NGroupBox("Data source items -> Custom widgets", pairBox));
// Create the advanced data binding
NNodeCollectionDataBinding <NComboBoxItemCollection, NComboBoxItem, NCountry> countryDataBinding =
new NNodeCollectionDataBinding <NComboBoxItemCollection, NComboBoxItem, NCountry>();
NDataBinding.SetDataBinding(m_AdvancedComboBox.Items, countryDataBinding);
countryDataBinding.DataSource = countries;
countryDataBinding.CreateItemNode += new Function <NCreateItemNodeEventArgs <NComboBoxItem, NCountry> >(OnCountryDataBindingCreateItemNode);
countryDataBinding.RebuildTarget();
// Select the first country
m_ComboBox.SelectedIndex = 0;
m_AdvancedComboBox.SelectedIndex = 0;
// Subscribe to the selected index changed events
m_ComboBox.SelectedIndexChanged += new Function <NValueChangeEventArgs>(OnComboBoxSelectedIndexChanged);
m_AdvancedComboBox.SelectedIndexChanged += new Function <NValueChangeEventArgs>(OnComboBoxSelectedIndexChanged);
return(stack);
}
protected override NWidget CreateExampleContent()
{
NStackPanel stack = new NStackPanel();
stack.Direction = ENHVDirection.LeftToRight;
stack.HorizontalSpacing = 10;
// Load the contry data
NList <NCountry> countries = LoadCountryData();
// Create the simple list box
m_ListBox = new NListBox();
m_ListBox.Selection.Selected += new Function <NSelectEventArgs <NListBoxItem> >(OnListBoxItemSelected);
stack.Add(new NGroupBox("Data source items -> Labels", m_ListBox));
// Create the simple data binding
NNodeCollectionDataBinding <NListBoxItemCollection, NListBoxItem, NCountry> countryNameDataBinding =
new NNodeCollectionDataBinding <NListBoxItemCollection, NListBoxItem, NCountry>();
NDataBinding.SetDataBinding(m_ListBox.Items, countryNameDataBinding);
countryNameDataBinding.DataSource = countries;
countryNameDataBinding.CreateItemNode += new Function <NCreateItemNodeEventArgs <NListBoxItem, NCountry> >(OnCountryNameDataBindingCreateItemNode);
countryNameDataBinding.RebuildTarget();
// Create the advanced list box
m_AdvancedListBox = new NListBox();
m_AdvancedListBox.Selection.Selected += new Function <NSelectEventArgs <NListBoxItem> >(OnListBoxItemSelected);
stack.Add(new NGroupBox("Data source items -> Custom widgets", m_AdvancedListBox));
// Create the advanced data binding
NNodeCollectionDataBinding <NListBoxItemCollection, NListBoxItem, NCountry> countryDataBinding =
new NNodeCollectionDataBinding <NListBoxItemCollection, NListBoxItem, NCountry>();
NDataBinding.SetDataBinding(m_AdvancedListBox.Items, countryDataBinding);
countryDataBinding.DataSource = countries;
countryDataBinding.CreateItemNode += new Function <NCreateItemNodeEventArgs <NListBoxItem, NCountry> >(OnCountryDataBindingCreateItemNode);
countryDataBinding.RebuildTarget();
return(stack);
}
