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我在 bb 10 级联中有一个选项卡式窗格，我的一个选项卡就像...在这个链接中

http://pastebin.com/LRzyNdHZ（将此链接粘贴到地址栏中，如果它没有打开）

正如您所观察到的，在“添加/删除符号”操作项中，我尝试在“AddOrDelete.qml”中有一个下拉菜单。您可以在此链接中找到“AddOrDelete.qml”

http://pastebin.com/mw1nE7yj

现在我在“DatabaseOperations.cpp”中有一个方法，比如......

QList<QString>   DatabaseOperations::readRecords(QString tableName){

QList<QString> sym_ID_List;
  // 1. Get the local DB connection. Note, called database()
  //    Will automatically open a connection to the database
     QSqlDatabase database = QSqlDatabase::database(); // opens the default database.

  // 2. Create a query to search for the records
     QSqlQuery query(database);
     const QString sqlQuery = "SELECT * FROM "+tableName;

     if (query.exec(sqlQuery)) {

         // Get the field indexes. We know the order of the fields, and could skip this step.
         // However this will still work if the fi changeldse order in the query string.
         const int customerIDField = query.record().indexOf("SymbolId");

         // 3. Start navigating through the records by calling the 'next' function.
        //     When there are no longer any records it will return false.
         int recordsRead = 0;
         while (query.next()) {
             // 4. Access the data (stored in the query) via the field indexes
             //    and add the data to the model.
            if(!query.value(1).toString().contains("skipRecord")){
                //alert("recordsRead"+query.value(1).toString());
                sym_ID_List.insert(recordsRead,query.value(1).toString());
            }

             recordsRead++;
         }
         qDebug() << "Read " << recordsRead << " records succeeded";
         if (recordsRead == 0) {
            // alert(tr("The customer table is empty."));
         }
     } else {
        // alert(tr("Read records failed: %1").arg(query.lastError().text()));
     }

     // 6. Optionally close the database connection if we no longer plan to use it
     database.close();
     return sym_ID_List;

}

现在我想将这些值推送到“AddOrDelete.qml”中定义的下拉列表中。

目前我在主屏幕中（即带有四个选项卡的选项卡式窗格...其中一个选项卡在第一个链接中给出）。我从带有 Id 的操作项导航到“AddOrDelete.qml”文件：“添加/删除符号”。我只有一个 app.cpp 文件，我有 Lode HomeScreen，像这样......

ApplicationUI::ApplicationUI(bb::cascades::Application *app) : QObject(app){

qmlRegisterType < Timer > ("CustomTimer", 1, 0, "Timer");
QmlDocument *qml = QmlDocument::create("asset:///Template.qml").parent(this);
qml->setContextProperty("_app", this);
TabbedPane *root = qml->createRootObject<TabbedPane>();
app->setScene(root);

}

为了您的信息，我从 Qml 本身进行了导航。要从 DatabaseOpartion() 推送 Vaues，我是否需要为“AddOrDelete.qml”创建一个单独的 .CPP。如果是这样，我如何链接“App.cpp”文件和“second.cpp”文件。我如何在主屏幕（选项卡式窗格）之间导航。自上周以来我一直面临这个问题，我想我在这里得到了解决方案，

谢谢！！！

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