Smrf.NodeXL.ExcelTemplate.DuplicateEdgeMerger.TryGetInformationFromEdgeTable C# (CSharp) Method

    TryGetInformationFromEdgeTable
    (
        Microsoft.Office.Interop.Excel.Workbook oWorkbook,
        ListObject oEdgeTable,
        String sThirdColumnName,
        out Boolean bGraphIsDirected,
        out Range oVertex1NameData,
        out Object [,] aoVertex1NameValues,
        out Range oVertex2NameData,
        out Object [,] aoVertex2NameValues,
        out Object [,] aoThirdColumnValues
    )
    {
        Debug.Assert(oWorkbook != null);
        Debug.Assert(oEdgeTable != null);
        AssertValid();

        oVertex1NameData = oVertex2NameData = null;
        aoVertex1NameValues = aoVertex2NameValues = aoThirdColumnValues = null;

        bGraphIsDirected =
            (new PerWorkbookSettings(oWorkbook).GraphDirectedness ==
            GraphDirectedness.Directed);

        Range oThirdColumnData;

        if (
            !String.IsNullOrEmpty(sThirdColumnName)
            &&
            !ExcelTableUtil.TryGetTableColumnDataAndValues(oEdgeTable,
                sThirdColumnName, out oThirdColumnData,
                out aoThirdColumnValues)
            )
        {
            // This is not an error.

            aoThirdColumnValues = null;
        }

        return (
            ExcelTableUtil.TryGetTableColumnDataAndValues(oEdgeTable,
                EdgeTableColumnNames.Vertex1Name, out oVertex1NameData,
                out aoVertex1NameValues)
            &&
            ExcelTableUtil.TryGetTableColumnDataAndValues(oEdgeTable,
                EdgeTableColumnNames.Vertex2Name, out oVertex2NameData,
                out aoVertex2NameValues)
            );
    }