/// <summary>
/// Will ensure events aren't triggered when value is set
/// </summary>
/// <param name="propertyPath"></param>
/// <param name="value"></param>
internal void SetValue(string[] propertyPath, object value, BindingRegistration bindingRegistrationToSkipNotifying, PropertyInfoAndObject preObtainedSourceProperty = null)
{
var property = preObtainedSourceProperty ?? GetProperty(propertyPath);
if (property != null)
{
BindingHost bindingHost = null;
InternalBindingRegistration internalRegistrationToSkip = null;
if (bindingRegistrationToSkipNotifying != null)
{
internalRegistrationToSkip = bindingRegistrationToSkipNotifying.GetFinalInternalRegistration();
bindingHost = FindBindingHost(propertyPath);
if (bindingHost != null)
{
bindingHost._bindingRegistrationToSkipOnce = internalRegistrationToSkip;
}
}
try
{
property.PropertyInfo.SetValue(property.Object, value);
}
finally
{
if (bindingHost != null && bindingHost._bindingRegistrationToSkipOnce == internalRegistrationToSkip)
{
bindingHost._bindingRegistrationToSkipOnce = null;
}
}
}
}
internal BindingRegistration(BindingHost host, string propertyName, BindingRegistration subRegistration, string[] fullPropertyPath)
{
BindingHost = host;
PropertyName = propertyName;
SubRegistration = subRegistration;
_fullPropertyPath = fullPropertyPath;
}
private BindingRegistration SetBinding(string[] propertyPaths, Action action, bool skipInvokingActionImmediately, bool topLevel = true)
{
string immediatePath = propertyPaths[0];
if (propertyPaths.Length == 1)
{
List <InternalBindingRegistration> storedBindings;
if (!_bindings.TryGetValue(immediatePath, out storedBindings))
{
storedBindings = new List <InternalBindingRegistration>();
_bindings[immediatePath] = storedBindings;
}
var internalRegistration = new InternalBindingRegistration(action);
storedBindings.Add(internalRegistration);
// We require DataContext to be set here since bindings can be wired before DataContext is set
if (DataContext != null && !skipInvokingActionImmediately)
{
action();
}
return(new BindingRegistration(this, immediatePath, internalRegistration, topLevel ? propertyPaths : null));
}
else
{
BindingHost subBinding;
if (!_subPropertyBindings.TryGetValue(immediatePath, out subBinding))
{
subBinding = new BindingHost()
{
DataContext = GetValueFromSingleProperty(propertyPaths[0])
};
_subPropertyBindings[immediatePath] = subBinding;
}
var subRegistration = subBinding.SetBinding(propertyPaths.Skip(1).ToArray(), action, skipInvokingActionImmediately, topLevel: false);
// For this we need to execute first time even if data context was null (for example binding Class.Name should execute even if Class was null)
if (DataContext != null && subBinding.DataContext == null && !skipInvokingActionImmediately)
{
action();
}
return(new BindingRegistration(this, immediatePath, subRegistration, topLevel ? propertyPaths : null));
}
}
public PropertyInfoAndObject GetSourceProperty()
{
return(BindingHost.GetProperty(_fullPropertyPath));
}
/// <summary>
/// Will ensure this binding registration's callback isn't triggered when value is set
/// </summary>
/// <param name="propertyPath"></param>
/// <param name="value"></param>
public void SetSourceValue(object value, PropertyInfoAndObject preObtainedSourceProperty = null)
{
BindingHost.SetValue(_fullPropertyPath, value, IsEmptyRegistration ? null : this, preObtainedSourceProperty: preObtainedSourceProperty);
}
public void Unregister()
{
BindingHost.UnregisterBinding(this);
}