public static void SetPropertyValue(object xamlelement, XmlName propertyName, object value, object rootElement, INode node, HydrationContext context, IXmlLineInfo lineInfo)
{
var localName = propertyName.LocalName;
var serviceProvider = new XamlServiceProvider(node, context);
Exception xpe = null;
var xKey = node is IElementNode && ((IElementNode)node).Properties.ContainsKey(XmlName.xKey) ? ((ValueNode)((IElementNode)node).Properties[XmlName.xKey]).Value as string : null;
//If it's an attached BP, update elementType and propertyName
var bpOwnerType = xamlelement.GetType();
var attached = GetRealNameAndType(ref bpOwnerType, propertyName.NamespaceURI, ref localName, context, lineInfo);
var property = GetBindableProperty(bpOwnerType, localName, lineInfo, false);
//If the target is an event, connect
if (xpe == null && TryConnectEvent(xamlelement, localName, attached, value, rootElement, lineInfo, out xpe))
{
return;
}
//If Value is DynamicResource and it's a BP, SetDynamicResource
if (xpe == null && TrySetDynamicResource(xamlelement, property, value, lineInfo, out xpe))
{
return;
}
//If value is BindingBase, SetBinding
if (xpe == null && TrySetBinding(xamlelement, property, localName, value, lineInfo, out xpe))
{
return;
}
//Call TrySetProperty first and then TrySetValue to keep the code logic consistent whether it is through xaml or code.
//If we can assign that value to a normal property, let's do it
if (xpe == null && TrySetProperty(xamlelement, localName, value, lineInfo, serviceProvider, context, out xpe))
{
return;
}
//If it's a BindableProberty, SetValue
if (xpe == null && TrySetValue(xamlelement, property, attached, value, lineInfo, serviceProvider, out xpe))
{
return;
}
//If it's an already initialized property, add to it
if (xpe == null && TryAddToProperty(xamlelement, propertyName, value, xKey, lineInfo, serviceProvider, context, out xpe))
{
return;
}
xpe = xpe ?? new XamlParseException($"Cannot assign property \"{localName}\": Property does not exist, or is not assignable, or mismatching type between value and property", lineInfo);
if (context.ExceptionHandler != null)
{
context.ExceptionHandler(xpe);
}
else
{
throw xpe;
}
}
public static object GetPropertyValue(object xamlElement, XmlName propertyName, HydrationContext context, IXmlLineInfo lineInfo, out object targetProperty)
{
var localName = propertyName.LocalName;
Exception xpe = null;
object value;
targetProperty = null;
//If it's an attached BP, update elementType and propertyName
var bpOwnerType = xamlElement.GetType();
var attached = GetRealNameAndType(ref bpOwnerType, propertyName.NamespaceURI, ref localName, context, lineInfo);
var property = GetBindableProperty(bpOwnerType, localName, lineInfo, false);
//If it's a BindableProberty, GetValue
if (xpe == null && TryGetValue(xamlElement, property, attached, out value, lineInfo, out xpe, out targetProperty))
{
return(value);
}
//If it's a normal property, get it
if (xpe == null && TryGetProperty(xamlElement, localName, out value, lineInfo, context, out xpe, out targetProperty))
{
return(value);
}
xpe = xpe ?? new XamlParseException($"Property {localName} is not found or does not have an accessible getter", lineInfo);
if (context.ExceptionHandler != null)
{
context.ExceptionHandler(xpe);
}
else
{
throw xpe;
}
return(null);
}