public static RawDataSourceInfoBase GetDataSourceInfoFromBinding(DocumentCompositeNode bindingNode)
{
RawDataSourceInfoBase dataSourceInfoBase = (RawDataSourceInfoBase)null;
DocumentCompositeNode resourceReferenceNode = bindingNode.Properties[BindingSceneNode.SourceProperty] as DocumentCompositeNode;
if (resourceReferenceNode == null)
{
dataSourceInfoBase = (RawDataSourceInfoBase)DataContextHelper.GetElementNameBinding(bindingNode);
}
if (dataSourceInfoBase == null)
{
string bindingPath = DataContextHelper.GetBindingPath(bindingNode);
if (resourceReferenceNode != null && resourceReferenceNode.Type.IsResource)
{
dataSourceInfoBase = DataContextHelper.GetDataSourceInfoFromResourceReference(resourceReferenceNode);
if (!dataSourceInfoBase.IsValid)
{
return(dataSourceInfoBase);
}
dataSourceInfoBase.AppendClrPath(bindingPath);
}
else
{
dataSourceInfoBase = (RawDataSourceInfoBase) new RawDataSourceInfo((DocumentNode)resourceReferenceNode, bindingPath);
}
}
string bindingXpath = DataContextHelper.GetBindingXPath(bindingNode);
dataSourceInfoBase.XmlPath = XmlSchema.CombineXPaths(dataSourceInfoBase.XmlPath, bindingXpath);
if (bindingNode.Properties[BindingSceneNode.RelativeSourceProperty] != null)
{
dataSourceInfoBase.SetInvalid();
}
return(dataSourceInfoBase);
}
public DataContextInfo Evaluate(IDataContextAncestorWalker walker, bool isForSettingValue)
{
this.visitedLocations.Reset();
DataContextInfo dataContextInfo1 = new DataContextInfo();
RawDataSourceInfoBase dataSourceInfoBase1 = (RawDataSourceInfoBase)null;
bool flag = isForSettingValue;
this.evaluatingInfo = dataContextInfo1;
DataContextInfo dataContextInfo2 = (DataContextInfo)null;
try
{
while (walker.MoveNext())
{
if (flag)
{
flag = DataContextMetadata.GetDataContextAttribute <DualDataContextAttribute>(walker.CurrentProperty) != null;
}
RawDataSourceInfoBase dataSourceInfoBase2 = !flag?this.NavigateSpecialDataContextInternal(walker, dataSourceInfoBase1, true) : dataSourceInfoBase1;
flag = false;
if (dataSourceInfoBase2 != dataSourceInfoBase1)
{
dataSourceInfoBase1 = dataSourceInfoBase2;
this.MoveUpIfDataContextLocation(walker);
}
if (dataSourceInfoBase1 != null)
{
if (!dataSourceInfoBase1.IsValid)
{
break;
}
}
RawDataSourceInfoBase rawDataContextInfo = this.GetRawDataContextInfo(walker);
if (rawDataContextInfo != null)
{
if (rawDataContextInfo.IsValid)
{
dataSourceInfoBase1 = rawDataContextInfo.CombineWith(dataSourceInfoBase1);
}
else if (dataSourceInfoBase1 != null)
{
dataSourceInfoBase1.SetInvalid();
}
else
{
dataSourceInfoBase1 = rawDataContextInfo;
}
}
if (dataSourceInfoBase1 != null)
{
if (dataSourceInfoBase1.IsValid)
{
if (dataSourceInfoBase1.HasSource)
{
break;
}
}
else
{
break;
}
}
if (dataContextInfo2 == null)
{
dataContextInfo2 = this.GetTypedTemplateDataContext(walker.CurrentNode, dataSourceInfoBase1);
}
}
}
finally
{
this.evaluatingInfo = (DataContextInfo)null;
}
if (dataContextInfo2 != null && dataContextInfo2.DataSource.IsValidWithSource && (dataSourceInfoBase1 == null || !dataSourceInfoBase1.IsValid || !dataSourceInfoBase1.HasSource))
{
dataContextInfo1 = dataContextInfo2;
}
else
{
dataContextInfo1.RawDataSource = dataSourceInfoBase1;
}
return(dataContextInfo1);
}