public static DataContextPropertyPathExtension GetDataContextPropertyPathExtension(DocumentCompositeNode documentNode, IProperty property)
{
DataContextPropertyPathExtension extensionInternal = DataContextMetadata.GetDataContextPropertyPathExtensionInternal(documentNode, property);
if (extensionInternal != null && !extensionInternal.IsValid)
{
DataContextMetadata.GetDataContextAttribute <DataContextPathExtensionAttribute>(property);
}
return(extensionInternal);
}
private RawDataSourceInfoBase MoveToSpecialDataContextPathExtension(IDataContextAncestorWalker walker, RawDataSourceInfoBase localDataSource)
{
if (walker.CurrentNode == null)
{
return((RawDataSourceInfoBase)null);
}
DataContextPropertyPathExtension propertyPathExtension1 = DataContextMetadata.GetDataContextPropertyPathExtension(walker.CurrentNode, walker.CurrentProperty);
if (propertyPathExtension1 == null)
{
return((RawDataSourceInfoBase)null);
}
string propertyPathExtension2 = this.GetPropertyPathExtension(walker.CurrentNode, walker.CurrentProperty, propertyPathExtension1);
if (propertyPathExtension2 == null)
{
return((RawDataSourceInfoBase)RawDataSourceInfo.Invalid);
}
if (this.visitedLocations.IsVisited(walker))
{
return((RawDataSourceInfoBase)RawDataSourceInfo.Invalid);
}
DocumentNode dataSourceNode = walker.CurrentNode.Properties[(IPropertyId)propertyPathExtension1.Property];
RawDataSourceInfoBase dataSourceInfoBase;
if (dataSourceNode == null)
{
dataSourceInfoBase = (RawDataSourceInfoBase)RawDataSourceInfo.NewEmpty;
}
else
{
dataSourceInfoBase = DataContextHelper.GetRawDataSourceInfo(dataSourceNode);
if (dataSourceInfoBase.IsValid)
{
dataSourceInfoBase.AppendClrPath(propertyPathExtension2);
}
}
RawDataSourceInfoBase localDataSource1 = dataSourceInfoBase.CombineWith(localDataSource);
walker.MoveTo(walker.CurrentNode, propertyPathExtension1.Property, true);
return(this.UnwindElementNameBindingInternal(walker, localDataSource1));
}
private string GetPropertyPathExtension(DocumentCompositeNode documentNode, IProperty targetProperty, DataContextPropertyPathExtension pathExtension)
{
if (!pathExtension.IsValid)
{
return((string)null);
}
DocumentNode node = documentNode.Properties[(IPropertyId)targetProperty];
if (node == null || !PlatformTypes.String.IsAssignableFrom((ITypeId)node.Type))
{
return(string.Empty);
}
string localPath = DocumentPrimitiveNode.GetValueAsString(node);
if (pathExtension.IsCollectionItem)
{
localPath = ClrObjectSchema.CombinePaths(DataSchemaNode.IndexNodePath, localPath);
}
return(localPath);
}
