GetOtherColumnNames
(
Microsoft.Office.Interop.Excel.Workbook oWorkbook,
ColumnGroups eOtherColumnGroup
)
{
Debug.Assert(oWorkbook != null);
List<String> oOtherColumnNames = new List<String>();
ListObject oTable;
if ( TryGetColumnGroupTable(oWorkbook, eOtherColumnGroup, out oTable) )
{
// Create a HashSet of the column names that are included in all
// the non-other column groups in the table.
HashSet<String> oColumnNamesInNonOtherGroups =
new HashSet<String>();
// All column groups in the edge table start with "Edge", all
// column groups in the vertex table start with "Vertex", and all
// column groups in the group table start with "Group".
String sStartsWith = null;
switch (eOtherColumnGroup)
{
case ColumnGroups.EdgeOtherColumns:
sStartsWith = "Edge";
break;
case ColumnGroups.VertexOtherColumns:
sStartsWith = "Vertex";
break;
case ColumnGroups.GroupOtherColumns:
sStartsWith = "Group";
break;
default:
Debug.Assert(false);
break;
}
foreach ( ColumnGroups eColumnGroup in
Enum.GetValues(typeof(ColumnGroups) ) )
{
if (
eColumnGroup != eOtherColumnGroup
&&
eColumnGroup.ToString().StartsWith(sStartsWith)
)
{
foreach ( String sColumnNameInNonOtherGroup in
GetColumnNames(oWorkbook, eColumnGroup) )
{
oColumnNamesInNonOtherGroups.Add(
sColumnNameInNonOtherGroup);
}
}
}
// Any column not included in one of the non-other column groups is
// an "other" column.
foreach (ListColumn oColumn in oTable.ListColumns)
{
String sColumnName = oColumn.Name;
if ( !oColumnNamesInNonOtherGroups.Contains(sColumnName) )
{
oOtherColumnNames.Add(sColumnName);
}
}
}
return ( oOtherColumnNames.ToArray() );
}
}
