private void addOrRemoveEvent(SwitchPanelViewModel model, bool isAdd)
{
if (model != null)
{
if (isAdd)
{
model.SwitchesUpdated += Model_SwitchsUpdated;
}
else
{
model.SwitchesUpdated -= Model_SwitchsUpdated;
}
}
}
private void refreshSwitchBtns(SwitchPanelViewModel model)
{
clearSwitchBtns();
if (model != null)
{
for (int i = 0; i < model.AllSwitchStatus.Count; i++)
{
Button btn = new Button();
Binding binding = BindingHelper.CreateBinding(model.AllSwitchStatus[i], BindingMode.OneWay, null);
btn.SetBinding(Button.DataContextProperty, binding);
wrapSwitches.Children.Add(btn);
}
}
}
private void thisDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
SwitchPanelViewModel oldM = e.OldValue as SwitchPanelViewModel;
SwitchPanelViewModel newM = e.NewValue as SwitchPanelViewModel;
if (oldM != null)
{
addOrRemoveEvent(oldM, false);
}
if (newM != null)
{
addOrRemoveEvent(newM, true);
}
refreshSwitchBtns(ViewModel);
}