protected virtual void OnPropertyCollapsed(PositionedNodeProperty property)
{
if (this.PropertyCollapsed != null)
{
this.PropertyCollapsed(this, new PositionedPropertyEventArgs(property));
}
}
void PropertyExpandButton_Click(object sender, RoutedEventArgs e)
{
var clickedButton = (ToggleButton)e.Source;
if (clickedButton.DataContext == null)
{
return;
}
ContentPropertyNode clickedNode = clickedButton.DataContext as ContentPropertyNode;
clickedNode = clickedButton.DataContext as ContentPropertyNode;
if (clickedNode == null)
{
throw new InvalidOperationException("Clicked property expand button, button shouln't be there - DataContext is not ContentPropertyNode.");
}
PositionedNodeProperty property = clickedNode.Property;
clickedButton.Content = property.IsPropertyExpanded ? "-" : "+"; // could be done with a converter
if (property.IsPropertyExpanded)
{
OnPropertyExpanded(property);
}
else
{
OnPropertyCollapsed(property);
}
}
private void PropertyExpandButton_Click(object sender, RoutedEventArgs e)
{
var clickedButton = (ToggleButton)e.Source;
ContentPropertyNode clickedNode = null;
try
{
clickedNode = (ContentPropertyNode)(clickedButton).DataContext;
}
catch (InvalidCastException)
{
throw new InvalidOperationException("Clicked property expand button, button shouln't be there - DataContext is not PropertyNodeViewModel.");
}
PositionedNodeProperty property = clickedNode.Property;
//property.IsPropertyExpanded = !property.IsPropertyExpanded; // done by databinding
clickedButton.Content = property.IsPropertyExpanded ? "-" : "+";
if (property.IsPropertyExpanded)
{
OnPropertyExpanded(property);
}
else
{
OnPropertyCollapsed(property);
}
}
