public static DataContextProperty GetDataContextProperty(DocumentCompositeNode documentNode, IProperty property)
{
DataContextProperty dataContextProperty = DataContextMetadata.GetDataContextPropertyInternal(documentNode, property);
if (dataContextProperty != null && dataContextProperty.IsValid && documentNode.Properties[(IPropertyId)property] != null)
{
DualDataContextAttribute contextAttribute = DataContextMetadata.GetDataContextAttribute <DualDataContextAttribute>(property);
if (contextAttribute != null && contextAttribute.UseDefaultDataContextWhenValueSet)
{
dataContextProperty = (DataContextProperty)null;
}
}
return(dataContextProperty);
}
private RawDataSourceInfoBase MoveToDataContextProperty(IDataContextAncestorWalker walker, RawDataSourceInfoBase localDataSource)
{
if (walker.CurrentNode == null)
{
return((RawDataSourceInfoBase)null);
}
DataContextProperty dataContextProperty = DataContextMetadata.GetDataContextProperty(walker.CurrentNode, walker.CurrentProperty);
if (dataContextProperty == null)
{
return((RawDataSourceInfoBase)null);
}
if (!dataContextProperty.IsValid)
{
return((RawDataSourceInfoBase)RawDataSourceInfo.Invalid);
}
if (this.visitedLocations.IsVisited(walker))
{
return((RawDataSourceInfoBase)RawDataSourceInfo.Invalid);
}
DocumentNode dataContextNode = dataContextProperty.DataContextNode;
if (dataContextNode == null)
{
return((RawDataSourceInfoBase)RawDataSourceInfo.Invalid);
}
this.OnDataSourceFound(walker.CurrentNode, walker.CurrentProperty);
RawDataSourceInfoBase rawDataSourceInfo = DataContextHelper.GetRawDataSourceInfo(dataContextNode);
if (rawDataSourceInfo.IsValid && dataContextProperty.IsCollectionItem)
{
rawDataSourceInfo.AppendIndexStep();
}
RawDataSourceInfoBase localDataSource1 = rawDataSourceInfo.CombineWith(localDataSource);
walker.MoveTo(dataContextProperty.SourceNode, dataContextProperty.Property, true);
return(this.UnwindElementNameBindingInternal(walker, localDataSource1));
}
