ReadEdgeWeight ( ExcelTableReader.ExcelTableRow oRow, IEdge oEdge ) { Debug.Assert(oRow != null); AssertValid(); Double dEdgeWeight = 0; if ( !oRow.TryGetDoubleFromCell(EdgeTableColumnNames.EdgeWeight, out dEdgeWeight) ) { // There is no edge weight column, or the edge weight cell for this // edge is empty. dEdgeWeight = 1; } oEdge.SetValue(ReservedMetadataKeys.EdgeWeight, dEdgeWeight); }