/// <inheritdoc/>
public InstancedBinding?Initiate(
IAvaloniaObject target,
AvaloniaProperty?targetProperty,
object?anchor = null,
bool enableDataValidation = false)
{
// Usually each `TemplateBinding` will only be instantiated once; in this case we can
// use the `TemplateBinding` object itself as the instanced binding in order to save
// allocating a new object.
//
// If the binding appears in a `Setter`, then make a clone and instantiate that because
// because the setter can outlive the control and cause a leak.
if (_target == null && !_isSetterValue)
{
_target = (IStyledElement)target;
_targetType = targetProperty?.PropertyType;
return(new InstancedBinding(
this,
Mode == BindingMode.Default ? BindingMode.OneWay : Mode,
BindingPriority.TemplatedParent));
}
else
{
var clone = new TemplateBinding
{
Converter = Converter,
ConverterParameter = ConverterParameter,
Property = Property,
};
return(clone.Initiate(target, targetProperty, anchor, enableDataValidation));
}
}
/// <inheritdoc/>
public InstancedBinding Initiate(
IAvaloniaObject target,
AvaloniaProperty targetProperty,
object anchor = null,
bool enableDataValidation = false)
{
// Usually each `TemplateBinding` will only be instantiated once; in this case we can
// use the `TemplateBinding` object itself as the instanced binding in order to save
// allocating a new object. If the binding *is* instantiated more than once (which can
// happen if it appears in a `Setter` for example, then just make a clone and instantiate
// that.
if (_target == null)
{
_target = (IStyledElement)target;
_targetType = targetProperty?.PropertyType;
return(new InstancedBinding(
this,
Mode == BindingMode.Default ? BindingMode.OneWay : Mode,
BindingPriority.TemplatedParent));
}
else
{
var clone = new TemplateBinding
{
Converter = Converter,
ConverterParameter = ConverterParameter,
Property = Property,
};
return(clone.Initiate(target, targetProperty, anchor, enableDataValidation));
}
}