ContentPresenter CreateChild(object item)
{
if (item == null)
{
return(null);
}
var content = FindChild(item);
if (content != null)
{
return(content);
}
// the actual child to be added. cp.Tag is a reference to the TabItem
content = new ContentPresenter
{
Content = (item is TabItem) ? (item as TabItem).Content : item
};
content.Bind(ContentPresenter.ContentTemplateProperty,
"SelectedContentTemplate", this, System.Windows.Data.BindingMode.OneWay);
content.Bind(ContentPresenter.ContentTemplateSelectorProperty,
"SelectedContentTemplateSelector", this, System.Windows.Data.BindingMode.OneWay);
content.Bind(ContentPresenter.ContentStringFormatProperty,
"SelectedContentStringFormat", this, System.Windows.Data.BindingMode.OneWay);
content.Visibility = Visibility.Collapsed;
content.Tag = (item is TabItem) ? item : (this.ItemContainerGenerator.ContainerFromItem(item));
PART_Items.Children.Add(content);
return(content);
}
public void Changing_Resource_In_Templated_Parent_Should_Affect_Templated_Child()
{
var target = new ContentControl
{
Resources =
{
{ "red", Brushes.Red },
},
Template = new FuncControlTemplate <ContentControl>((x, scope) =>
{
var result = new ContentPresenter
{
Name = "PART_ContentPresenter",
[!ContentPresenter.ContentProperty] = x[!ContentControl.ContentProperty],
}.RegisterInNameScope(scope);
result.Bind(ContentPresenter.BackgroundProperty, result.GetResourceObservable("red"));
return(result);
}),
};
var root = new TestRoot(target);
target.ApplyTemplate();
var contentPresenter = Assert.IsType <ContentPresenter>(target.GetVisualChildren().Single());
Assert.Same(Brushes.Red, contentPresenter.Background);
target.Resources["red"] = Brushes.Green;
Assert.Same(Brushes.Green, contentPresenter.Background);
}
private Control DefaultTemplate(Window c)
{
Border border = new Border();
border.Background = new Perspex.Media.SolidColorBrush(0xffffffff);
ContentPresenter contentPresenter = new ContentPresenter();
contentPresenter.Bind(
ContentPresenter.ContentProperty,
this.GetObservable(Window.ContentProperty),
BindingPriority.Style);
border.Content = contentPresenter;
return(border);
}
void UpdateTemplate()
{
if (Node != null)
{
bindings.Add(expander.Bind(ToggleButton.IsVisibleProperty, new Binding("ShowExpander")
{
Source = Node
}));
bindings.Add(expander.Bind(ToggleButton.IsCheckedProperty, new Binding("IsExpanded")
{
Source = Node
}));
bindings.Add(icon.Bind(ContentPresenter.IsVisibleProperty, new Binding("ShowIcon")
{
Source = Node
}));
bindings.Add(checkBoxContainer.Bind(Border.IsVisibleProperty, new Binding("IsCheckable")
{
Source = Node
}));
bindings.Add(checkBox.Bind(CheckBox.IsCheckedProperty, new Binding("IsChecked")
{
Source = Node
}));
bindings.Add(textContainer.Bind(Border.IsVisibleProperty, new Binding("IsEditing")
{
Source = Node, Converter = BoolConverters.Inverse
}));
bindings.Add(textContent.Bind(ContentPresenter.ContentProperty, new Binding("Text")
{
Source = Node
}));
RaisePropertyChanged(IconProperty, null, Icon);
}
spacer.Width = CalculateIndent();
if (ParentTreeView.Root == Node && !ParentTreeView.ShowRootExpander)
{
expander.IsVisible = false;
}
else
{
expander.ClearValue(IsVisibleProperty);
}
}
protected override ColumnDefinition GetColumnDefinition(ContentPresenter Child, int Index)
{
var Result = base.GetColumnDefinition(Child, Index);
var TreeViewItem = PART_TreeViewItem ?? this.GetParent <TreeViewItem>();
if (TreeViewItem == null)
{
throw new InvalidOperationException("TreeViewRowHeader must be hosted in a control that inherits TreeViewItem.");
}
var TreeView = PART_TreeView ?? TreeViewItem.GetParent <TreeView>();
try
{
if (TreeView is TreeViewExt && TreeView.As <TreeViewExt>().Columns.Count > 0 && Index < TreeView.As <TreeViewExt>().Columns.Count)
{
var Column = TreeView.As <TreeViewExt>().Columns[Index];
Result = new ColumnDefinition();
var NodeDepth = TreeViewItem.GetDepth();
var a = Index == 0 ? new TreeViewColumnGridLengthConverter(ColumnOffset) : null;
var b = Index == 0 ? new TreeViewColumnDoubleConverter(ColumnOffset) : null;
var c = Index == 0 ? new TreeViewColumnDoubleConverter(ColumnOffset) : null;
var n = Index == 0 ? NodeDepth.ToDouble() as object : null;
Result.Bind(ColumnDefinition.WidthProperty, Column, "Width", a, n, BindingMode.OneWay, UpdateSourceTrigger.PropertyChanged);
Result.Bind(ColumnDefinition.MinWidthProperty, Column, "MinWidth", b, n, BindingMode.TwoWay, UpdateSourceTrigger.PropertyChanged);
Result.Bind(ColumnDefinition.MaxWidthProperty, Column, "MaxWidth", c, n, BindingMode.TwoWay, UpdateSourceTrigger.PropertyChanged);
Child.Bind(ContentPresenter.MarginProperty, Column, "ContentMargin");
}
}
catch
{
Result = null;
}
return(Result);
}
