/// <summary>
/// Iterates the node relation of source list set.
/// </summary>
/// <param name="item">The item.</param>
/// <returns></returns>
public System.Collections.Generic.IEnumerable <NodeRelationDescriptor> IterateNodeRelationOfSourceListSetItem(SourceListSetEntry item)
{
foreach (NodeRelationDescriptor nRelation in this.Relations)
{
if (nRelation.ChildSourceName == item.SourceName)
{
yield return(nRelation);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SourceListSetEventArgs"/>.
/// </summary>
/// <param name="source">Name of the source.</param>
/// <param name="collectionChangedType">Type of the collection changed.</param>
public SourceListSetEventArgs(SourceListSetEntry source, CollectionChangedType collectionChangedType)
{
this._source = source;
this._collectionChangedType = collectionChangedType;
}
private void ProcessConnection(NodeRelationDescriptor nodeRelation, SourceListSetEntry childSourceList, SourceListSetEntry parentSourceList, object item)
{
ConnectorBase connector = null;
Node parentNode = GetParentNodeFromSourceListSet(parentSourceList, item, nodeRelation.ChildID, nodeRelation.ParentID);
Node childNode = GetChildNodeFromSourceListSet(childSourceList, item);
if (parentNode != null && childNode != null && !CheckParentAndChildNodeAlreadyConnected(parentNode, childNode))
{
if (!isNodeConnectStyleListening)
{
//Connect nodes
connector = ConnectNodes(parentNode, childNode);
}
else
{
//Raise the event to customize the connectors
connector = RaiseQueryNodeConnectorStyleInfoHandler(nodeRelation, parentNode, childNode);
}
}
//Append the Connector to the DiagramModel.
if (connector != null)
{
Diagram.Model.AppendChild(connector);
Diagram.Model.SendToBack(connector);
nodeRelation.nodeConnections.Add(connector);
}
}
