panthernet/GraphX — pull request #5 by stefanpe (2014-05-16 07:49:05+00:00)
Title: UpdateVertexEdges throws exception when trying to update VertextControl without Vertex

If dragging a VertexControl while modifying the graph, UpdateVertexEdges would be called for a control without Vertex and RootArea and thus throwing and GX_InvalidDataException.
Edges should not be updated for a VertexControl lacking a Vertex.