Question

我在bb 10级联中有一个选项卡式窗格，其中一个选项卡就像...在此链接中

http://pastebin.com/LRzyNdHZ（在地址栏中粘贴此链接，如果它没有打开）

并且如您所见，在“添加/删除符号”操作项中，我尝试“AddOrDelete.qml”，其中我有一个Drop down。你可以在这个链接中找到“AddOrDelete.qml”

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入到“AddOrDelete.qml”中定义的下拉列表中。

目前我处于主屏幕（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提供）.I导航到“AddOrDelete.qml”文件来自具有Id的操作项：“添加/删除符号“。我只有一个app.cpp文件，我有Lode HomeScreen，就像这样...

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（）中推送Vaues，我是否需要为“AddOrDelete.qml”创建单独的.CPP。如果是这样我如何链接“App.cpp”文件和“second.cpp”文件。如何在主屏幕（选项卡式窗格）中导航和导航。自上周以来，我一直在面对这个问题，我想我在这里得到了解决方案，

感谢!!!

在BB 10级联中导航后推动值下降

0 个答案: