// Registers any controls that have changed, so that when ApplyBindingsToItems is called, only updated controls are applied
void FloatingDialog_SourceUpdated(object sender, DataTransferEventArgs e)
{
FrameworkElement control = (FrameworkElement)sender;
BindingExpression exp = control.GetBindingExpression(e.Property);
// Find the binding data and mark it as changed
BEData binding = _bindings.Find(bdata => bdata.Exp == exp);
if (binding != null)
{
binding.HasValueChanged = true;
}
}
private void ApplyBatchCheckboxes(bool createOnly)
{
// do not use foreach beacuse it causes inner delegates to work with the wrong object (enumerator.Current)
for (int i = 0; i < _bindings.Count; i++)
{
BEData bedata = _bindings[i];
// In batch mode, attach a checkbox to this control for marking it as 'please override'
if (bedata.Obj is Control && ((Control)bedata.Obj).Parent is StackPanel && !GetReadOnlyField(bedata.Obj))
{
Control control = (Control)bedata.Obj;
StackPanel stackPanel = (StackPanel)control.Parent;
CheckBox checkbox = VisualTree.GetChild <CheckBox>(stackPanel, "__batch__cb");
bool created = false;
if (checkbox == null && this.IsBatch)
{
checkbox = new CheckBox();
checkbox.Name = "__batch__cb";
checkbox.ToolTip = "Check this to override the value of this field for all selected items";
checkbox.IsChecked = false;
checkbox.Style = (Style)App.Current.Resources["FormFieldBatchCheckbox"];
Action <object, RoutedEventArgs> del = delegate(object sender, RoutedEventArgs e)
{
bedata.ShouldBatchApply = control.IsEnabled = checkbox.IsChecked.Value;
};
checkbox.Checked += new RoutedEventHandler(del);
checkbox.Unchecked += new RoutedEventHandler(del);
stackPanel.Children.Add(checkbox);
created = true;
}
if (checkbox != null && (!createOnly || created))
{
checkbox.IsChecked = false;
checkbox.Visibility = IsBatch ? Visibility.Visible : Visibility.Collapsed;
control.IsEnabled = !IsBatch;
}
}
}
}
/// <summary>
/// Recursively finds any binding expressions marked with the DialogFields attached property.
/// </summary>
/// <param name="parent"></param>
void GetDialogFieldBindings(DependencyObject parent)
{
if (parent == null)
{
return;
}
int childCount = VisualTreeHelper.GetChildrenCount(parent);
for (int i = 0; i < childCount; i++)
{
DependencyObject child = VisualTreeHelper.GetChild(parent, i);
// Disregard anything that isn't an element
if (!(child is FrameworkElement))
{
continue;
}
if (!_scannedControls.Contains(child))
{
_scannedControls.Add(child);
// Get the list of bindings
object bindingTargets = child.GetValue(DialogFieldsProperty);
if (bindingTargets is string)
{
// Split the string into names
string[] properties = (bindingTargets as string).Split(',');
foreach (string property in properties)
{
DependencyProperty dependencyProp =
GetDependencyProperty(child.GetType(), property + "Property");
if (dependencyProp == null)
{
continue;
}
// If the property is valid, retrieve the attached binding expression and add it
BindingExpression exp = (child as FrameworkElement).GetBindingExpression(dependencyProp);
(child as FrameworkElement).SourceUpdated += new EventHandler <DataTransferEventArgs>(FloatingDialog_SourceUpdated);
var bedata = new BEData(exp, child, dependencyProp);
_bindings.Add(bedata);
}
// if (life.IsABitch)
// this.Commit("suicide");
}
// Bind to tabcontrol
if (child is TabControl)
{
foreach (TabItem tab in ((TabControl)child).Items)
{
tab.GotFocus += new RoutedEventHandler(tab_GotFocus);
}
}
}
GetDialogFieldBindings(child);
}
}
