Find Query Tables and List Objects related to External Data Connections with C++

Sometimes, you need to find out Query Tables and List Objects related to some External Data Connection. Query Tables are related to External Data Connection object with Connection Id, while List Objects are related to a Query Table.

Find Query Tables and List Objects related to External Data Connections

The following sample codes with sample excel file explain how to find Query Tables and List Objects related to External Data Connection.

#include <iostream>
#include "Aspose.Cells.h"

using namespace Aspose::Cells;
using namespace Aspose::Cells::ExternalConnections;

void PrintTables(Workbook& workbook, ExternalConnection& externalConnection)
{
    // Implementation of PrintTables function
    // This function should print tables related to the external connection
    // Placeholder for actual implementation
}

int main()
{
    Aspose::Cells::Startup();

    // Source directory path
    U16String srcDir(u"..\\Data\\01_SourceDirectory\\");

    // Load workbook object
    Workbook workbook(srcDir + u"sample.xlsm");

    // Check all the connections inside the workbook
    ExternalConnectionCollection dataConnections = workbook.GetDataConnections();
    for (int i = 0; i < dataConnections.GetCount(); i++)
    {
        ExternalConnection externalConnection = dataConnections.Get(i);
        std::cout << "connection: " << externalConnection.GetName().ToUtf8() << std::endl;
        PrintTables(workbook, externalConnection);
        std::cout << std::endl;
    }

    std::cout << "Press any key to continue..." << std::endl;
    std::cin.get();

    Aspose::Cells::Cleanup();
    return 0;
}

#include <iostream>
#include <algorithm>
#include "Aspose.Cells.h"

using namespace Aspose::Cells;
using namespace Aspose::Cells::ExternalConnections;
using namespace Aspose::Cells::Tables;

void PrintTables(Workbook workbook, ExternalConnection ec)
{
    for (int j = 0; j < workbook.GetWorksheets().GetCount(); j++)
    {
        Worksheet worksheet = workbook.GetWorksheets().Get(j);

        for (int k = 0; k < worksheet.GetQueryTables().GetCount(); k++)
        {
            QueryTable qt = worksheet.GetQueryTables().Get(k);

            if (ec.GetId() == qt.GetConnectionId() && qt.GetConnectionId() >= 0)
            {
                std::cout << "querytable " << qt.GetName().ToUtf8() << std::endl;
                std::u16string nameStr = qt.GetName().GetData();
                std::replace(nameStr.begin(), nameStr.end(), u'+', u'_');
                std::replace(nameStr.begin(), nameStr.end(), u'=', u'_');
                U16String n(nameStr.c_str());
                Name name = workbook.GetWorksheets().GetNames().Get(U16String(u"'") + worksheet.GetName() + U16String(u"'!") + n);
                if (name)
                {
                    Range range = name.GetRange();
                    if (range)
                    {
                        std::cout << "refersto: " << range.GetRefersTo().ToUtf8() << std::endl;
                    }
                }
            }
        }

        for (int k = 0; k < worksheet.GetListObjects().GetCount(); k++)
        {
            ListObject table = worksheet.GetListObjects().Get(k);

            if (table.GetDataSourceType() == TableDataSourceType::QueryTable)
            {
                QueryTable qt = table.GetQueryTable();

                if (ec.GetId() == qt.GetConnectionId() && qt.GetConnectionId() >= 0)
                {
                    std::cout << "querytable " << qt.GetName().ToUtf8() << std::endl;
                    std::cout << "Table " << table.GetDisplayName().ToUtf8() << std::endl;
                    std::cout << "refersto: " << worksheet.GetName().ToUtf8() << "!" 
                              << CellsHelper::CellIndexToName(table.GetStartRow(), table.GetStartColumn()).ToUtf8() 
                              << ":" 
                              << CellsHelper::CellIndexToName(table.GetEndRow(), table.GetEndColumn()).ToUtf8() 
                              << std::endl;
                }
            }
        }
    }
}

The following is the console output of running the above sample codes with this sample excel file.

connection: AAPL Connection

querytable hp?s=AAPL+Historical+Prices

refersto: =Sheet1!$Q$1:$W$69

connection: BOSL066360W7_SQLEXPRESS Test

querytable BOSL066360W7_SQLEXPRESS Test

Table Table_BOSL066360W7_SQLEXPRESS_Test

refersto: Sheet1!A1:B3

connection: BOSL066360W7_SQLEXPRESS Test1

querytable BOSL066360W7_SQLEXPRESS Test_1

Table Table_BOSL066360W7_SQLEXPRESS_Test_1

refersto: Sheet1!D1:E2

connection: UWTI Connection

querytable hp?s=UWTI+Historical+Prices

refersto: =Sheet1!$H$1:$N$69