private static void LoadDefaultDataTemplate(IDictionary <FileMetadataDataTemplateKey, DataTemplate> fileDestination, IDictionary <StreamMetadataDataTemplateKey, DataTemplate> streamDestination, string resourceKey, Type valueType)
{
DebugHelper.AssertUIThread();
Debug.Assert(fileDestination != null);
Debug.Assert(streamDestination != null);
Debug.Assert(resourceKey != null);
Debug.Assert(valueType != null);
DataTemplate dataTemplate = Application.Current.TryFindResource(resourceKey) as DataTemplate;
if (dataTemplate != null)
{
if (fileDestination != null)
{
FileMetadataDataTemplateKey key = new FileMetadataDataTemplateKey(valueType);
fileDestination.Add(key, dataTemplate);
}
if (streamDestination != null)
{
StreamMetadataDataTemplateKey key = new StreamMetadataDataTemplateKey(valueType);
streamDestination.Add(key, dataTemplate);
}
}
}
private DataTemplate GetStreamMetadataDataTemplate(IDictionary <StreamMetadataDataTemplateKey, DataTemplate> source, Type valueType, string keyName, Guid dataTypeId, Guid semanticId)
{
DebugHelper.AssertUIThread();
DataTemplate result = null;
if (this.plugins != null)
{
Debug.Assert(source != null);
Debug.Assert(valueType != null);
Debug.Assert(!String.IsNullOrWhiteSpace(keyName));
Debug.Assert(dataTypeId != Guid.Empty);
Debug.Assert(semanticId != Guid.Empty);
StreamMetadataDataTemplateKey key;
lock (this.plugins)
{
key = new StreamMetadataDataTemplateKey(valueType, keyName, dataTypeId, semanticId);
if (!source.TryGetValue(key, out result))
{
key = new StreamMetadataDataTemplateKey(valueType, keyName, dataTypeId);
if (!source.TryGetValue(key, out result))
{
key = new StreamMetadataDataTemplateKey(valueType, keyName);
if (!source.TryGetValue(key, out result))
{
key = new StreamMetadataDataTemplateKey(valueType);
if (!source.TryGetValue(key, out result))
{
result = null;
}
}
}
}
}
}
return(result);
}
public override bool Equals(object obj)
{
bool result = base.Equals(obj);
if (result)
{
StreamMetadataDataTemplateKey other = obj as StreamMetadataDataTemplateKey;
if (other == null)
{
result = false;
}
else
{
result = (this.dataTypeId == other.dataTypeId) &&
(this.semanticId == other.semanticId);
}
}
return(result);
}