public AutoExpandBehaviour(TreeView treeView)
{
this.TreeView = treeView;
BindingHelper.AddHandler(
this.TreeView,
ItemsControl.ItemsSourceProperty,
typeof(ListView),
this.OnItemsSourceChanged
);
}
public GroupStyleBehaviour(ListView listView)
{
this.ListView = listView;
this.ScriptingContext = ScriptingRuntime.CreateContext();
BindingHelper.AddHandler(
this.ListView,
ItemsControl.ItemsSourceProperty,
typeof(ListView),
this.OnItemsSourceChanged
);
}
protected virtual void UpdateLayoutSource()
{
if (this.Parent == null)
{
return;
}
var grid = this.Parent.FindAncestor <Grid>();
if (grid == null)
{
return;
}
var index = default(int);
switch (this.SizeMode)
{
case SquareUIComponentSizeMode.ToWidth:
var column = default(ColumnDefinition);
index = Grid.GetColumn(this);
if (index < grid.ColumnDefinitions.Count)
{
column = grid.ColumnDefinitions[index];
BindingHelper.AddHandler(column, ColumnDefinition.WidthProperty, typeof(ColumnDefinition), (sender, e) =>
{
this.UpdateLayoutSource(column);
});
}
this.UpdateLayoutSource(column);
break;
case SquareUIComponentSizeMode.ToHeight:
var row = default(RowDefinition);
index = Grid.GetRow(this);
if (index < grid.RowDefinitions.Count)
{
row = grid.RowDefinitions[index];
BindingHelper.AddHandler(row, RowDefinition.HeightProperty, typeof(RowDefinition), (sender, e) =>
{
this.UpdateLayoutSource(row);
});
}
this.UpdateLayoutSource(row);
break;
}
}
protected override void OnVisualParentChanged(DependencyObject oldParent)
{
if (this.Parent != null)
{
var row = default(RowDefinition);
var grid = this.Parent.FindAncestor <Grid>();
if (grid != null)
{
var index = Grid.GetRow(this);
if (index < grid.RowDefinitions.Count)
{
row = grid.RowDefinitions[index];
BindingHelper.AddHandler(row, RowDefinition.HeightProperty, typeof(RowDefinition), (sender, e) =>
{
this.UpdateLayoutSource(row);
});
}
}
this.UpdateLayoutSource(row);
}
base.OnVisualParentChanged(oldParent);
}
public OffsetBehaviour(ScrollViewer scrollViewer)
{
this.ScrollViewer = scrollViewer;
BindingHelper.AddHandler(this.ScrollViewer, VerticalValueProperty, typeof(ScrollViewer), this.OnVerticalValueChanged);
}