Aspose::Words::Node::GetAncestor method

Node::GetAncestor method

Gets the first ancestor of the specified NodeType.

System::SharedPtr<Aspose::Words::CompositeNode> Aspose::Words::Node::GetAncestor(Aspose::Words::NodeType ancestorType)

Parameter	Type	Description
ancestorType	Aspose::Words::NodeType	The node type of the ancestor to retrieve.

ReturnValue

The ancestor of the specified type or null if no ancestor of this type was found.

Examples

Shows how to find out if a tables are nested.

void CalculateDepthOfNestedTables()
{
    auto doc = MakeObject<Document>(MyDir + u"Nested tables.docx");
    SharedPtr<NodeCollection> tables = doc->GetChildNodes(NodeType::Table, true);

    for (int i = 0; i < tables->get_Count(); i++)
    {
        auto table = System::ExplicitCast<Table>(tables->idx_get(i));

        // Find out if any cells in the table have other tables as children.
        int count = GetChildTableCount(table);
        std::cout << "Table #" << i << " has " << count << " tables directly within its cells" << std::endl;

        // Find out if the table is nested inside another table, and, if so, at what depth.
        int tableDepth = GetNestedDepthOfTable(table);

        if (tableDepth > 0)
        {
            std::cout << "Table #" << i << " is nested inside another table at depth of " << tableDepth << std::endl;
        }
        else
        {
            std::cout << "Table #" << i << " is a non nested table (is not a child of another table)" << std::endl;
        }
    }
}

static int GetNestedDepthOfTable(SharedPtr<Table> table)
{
    int depth = 0;
    SharedPtr<Node> parent = table->GetAncestor(table->get_NodeType());

    while (parent != nullptr)
    {
        depth++;
        parent = parent->GetAncestorOf<SharedPtr<Table>>();
    }

    return depth;
}

static int GetChildTableCount(SharedPtr<Table> table)
{
    int childTableCount = 0;

    for (const auto& row : System::IterateOver(table->get_Rows()->LINQ_OfType<SharedPtr<Row>>()))
    {
        for (const auto& Cell : System::IterateOver(row->get_Cells()->LINQ_OfType<SharedPtr<Cell>>()))
        {
            SharedPtr<TableCollection> childTables = Cell->get_Tables();

            if (childTables->get_Count() > 0)
            {
                childTableCount++;
            }
        }
    }

    return childTableCount;
}

Aspose::Words::Node::GetAncestor method

Node::GetAncestor method

ReturnValue

Examples

See Also