public static Dialog Show(object content)
{
var dialog = new Dialog
{
Content = content
};
var window = VisualHelper.GetActiveWindow();
if (window != null)
{
var decorator = VisualHelper.GetChild <AdornerDecorator>(window);
if (decorator != null)
{
if (decorator.Child != null)
{
decorator.Child.IsEnabled = false;
}
var layer = decorator.AdornerLayer;
if (layer != null)
{
var container = new AdornerContainer(layer)
{
Child = dialog
};
dialog._container = container;
layer.Add(container);
}
}
}
return(dialog);
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (_scrollViewer == null)
{
_scrollViewer = VisualHelper.GetChild <ScrollViewer>(ListBoxChat);
}
_scrollViewer?.ScrollToBottom();
}
private void TabControl_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count == 0)
{
return;
}
if (e.AddedItems[0] is TabItem tabItem &&
VisualHelper.GetChild <ListBox>(tabItem.Content as DependencyObject) is ListBox listBox)
{
if (listBox.SelectedItem != null)
{
var item = listBox.SelectedItem;
listBox.SelectedIndex = -1;
listBox.SelectedItem = item;
}
}
}
private void GroupItems(TabControl tabControl, DemoInfoModel demoInfo)
{
var listBox = VisualHelper.GetChild <ListBox>(tabControl);
if (listBox == null)
{
return;
}
listBox.Items.GroupDescriptions?.Clear();
if (demoInfo.IsGroupEnabled)
{
Dispatcher.BeginInvoke(new Action(() =>
{
listBox.Items.GroupDescriptions?.Add(new PropertyGroupDescription("GroupName"));
}), DispatcherPriority.Background);
}
}
public void Close()
{
var window = VisualHelper.GetActiveWindow();
if (window != null)
{
var decorator = VisualHelper.GetChild <AdornerDecorator>(window);
if (decorator != null)
{
if (decorator.Child != null)
{
decorator.Child.IsEnabled = true;
}
var layer = decorator.AdornerLayer;
layer?.Remove(_container);
}
}
}
/// <summary>
/// Display context menu.
/// </summary>
/// <param name="sender">Object that raised the event.</param>
/// <param name="e">Event arguments.</param>
private void ContentControl_MouseDown(object sender, MouseButtonEventArgs e)
{
try
{
Control control = sender as Control;
control.ContextMenu.Items.Clear();
TabControl tabControl = VisualHelper.GetAncestor <TabControl>(control);
if (tabControl != null)
{
List <MenuItem> menuItems = new List <MenuItem>();
foreach (TabItem tabItem in tabControl.Items)
{
TextBlock textBlock = VisualHelper.GetChild <TextBlock>(tabItem.Header as DependencyObject);
Image image = VisualHelper.GetChild <Image>(tabItem.Header as DependencyObject);
if (textBlock != null && !String.IsNullOrWhiteSpace(textBlock.Text))
{
object header = textBlock.Text;
if (image != null)
{
StackPanel stack = new StackPanel();
stack.Orientation = Orientation.Horizontal;
stack.Children.Add(new Image()
{
Source = image.Source,
Height = image.Height,
Width = image.Width,
Margin = new Thickness(2)
});
stack.Children.Add(new TextBlock()
{
Text = textBlock.Text,
VerticalAlignment = System.Windows.VerticalAlignment.Center
});
header = stack;
}
menuItems.Add(new MenuItem()
{
Header = header,
Tag = tabItem
});
}
}
foreach (MenuItem menuItem in menuItems.OrderBy(mi => mi.Header.ToString()))
{
control.ContextMenu.Items.Add(menuItem);
}
}
if (control.ContextMenu.Items.Count > 0)
{
control.ContextMenu.IsEnabled = true;
control.ContextMenu.PlacementTarget = control;
control.ContextMenu.Placement = PlacementMode.Bottom;
control.ContextMenu.IsOpen = true;
}
}
catch (Exception err)
{
App.HandleException(err);
}
}