private static Control InjectDependenciesRecursiveInternal(IApplicationContext appContext, Control control)
{
if (control is LiteralControl)
{
return(control); // nothing to do
}
ISupportsWebDependencyInjection diControl = control as ISupportsWebDependencyInjection;
if (diControl != null && diControl.DefaultApplicationContext != null)
{
return(control); // nothing to do anymore - control cares for itself and its children
}
// "intercept" Control to make it DI-aware
ControlInterceptor.EnsureControlIntercepted(appContext, control);
// if the control is a UserControl, use ApplicationContext from it's physical location
IApplicationContext appContextToUse = appContext;
UserControl userControl = control as UserControl;
if (userControl != null)
{
appContextToUse = GetControlApplicationContext(appContext, userControl);
}
// set ApplicationContext instance
if (control is IApplicationContextAware)
{
((IApplicationContextAware)control).ApplicationContext = appContextToUse;
}
// inject dependencies using control's context
control = (Control)appContextToUse.ConfigureObject(control, control.GetType().FullName);
// and now go for control's children
if (control.HasControls())
{
ControlCollection childControls = control.Controls;
int childCount = childControls.Count;
for (int i = 0; i < childCount; i++)
{
Control c = childControls[i];
if (c is LiteralControl)
{
continue;
}
Control configuredControl = InjectDependenciesRecursiveInternal(appContext, c);
if (configuredControl != c)
{
ControlAccessor ac = new ControlAccessor(c.Parent);
ac.SetControlAt(configuredControl, i);
}
}
}
return(control);
}
private static bool IsDependencyInjectionAware(IApplicationContext defaultApplicationContext, object o)
{
ISupportsWebDependencyInjection diAware = o as ISupportsWebDependencyInjection;
if (diAware != null)
{
// If the ControlCollection is alread DI-aware ensure appContext is set
if (diAware.DefaultApplicationContext == null)
{
diAware.DefaultApplicationContext = defaultApplicationContext;
}
return(true); // nothing more to do
}
return(false);
}
