Smrf.NodeXL.ExcelTemplate.TaskPane.SelectAdjacentVertices C# (CSharp) Method

    SelectAdjacentVertices
    (
        IEdge oEdge,
        Boolean bSelect
    )
    {
        Debug.Assert(oEdge != null);
        AssertValid();

        // Copy the selected vertices to a HashSet.  The key is the IVertex.
        // A HashSet is used to prevent the same vertex from being selected
        // twice.

        HashSet<IVertex> oSelectedVertices =
            NodeXLControlUtil.GetSelectedVerticesAsHashSet(oNodeXLControl);

        // Add or subtract the specified edge's adjacent vertices from the
        // HashSet of selected vertices.

        foreach (IVertex oAdjacentVertex in oEdge.Vertices)
        {
            if (bSelect)
            {
                oSelectedVertices.Add(oAdjacentVertex);
            }
            else
            {
                oSelectedVertices.Remove(oAdjacentVertex);
            }
        }

        // Replace the selection.

        oNodeXLControl.SetSelected(oSelectedVertices,
            oNodeXLControl.SelectedEdges);
    }