Disable sorting in GroupDataModel

Hello

My application insert QVariantMap to a GroupDataModel and it happens on a random time.

When the GroupDataModel has a StandardListItem, it automatically sorts its elements (in alphabetical order)

Is it possible to turn off sorting?

Thank you!

Hello
Perhaps ArrayDataModel would fit better - he's not sort items.

Tags: BlackBerry Developers

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Disable sorting in datagrid

In my application, I have a datagrid with four separate columns, and I was wondering if there is a way to disable the functionality of sort on each column in the DataGrid?
If not, I'm open to suggestions, but prefer not to use the four elements of the separate list?
Thank you
Adam

Of course, in the DataGrid column includes sortable = "false".

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Is there a way to disable sorting and resizing of columns in the view table?
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Use

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I suspect that there is an easy answer to this...

To remove the ability to sort the columns, I put all the values for the column position Interaction to 'none '. However, the report of responses still allows the user to sort by any column.

Other reports, that I created, it worked. What Miss me to disable sorting option for the columns of the report?

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Bryan
Sorting of the column headers is not located in the same place as interaction column header. To disable sorting of the column heading, follow these steps:

(1) open the report in a table view.

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I have a table with 3 columns. It had been sorted by the first column (number of CR). Which works very well.
I'm trying now to sort instead of the third column. Part of the result is shown below. He refuses to sort, ascending or descending. I can still settle successfully in the first column. Why not this one?
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PS FM 11 - Windows 7
Additive - after new tests, it is clearly the data itself that FM has a problem with. The other two columns sort correctly, but it does not sort.

It looks like a bug. I just tested with different scenarios of periods in a numerical sequence. If one of the first two phases (for example, xx.yy.nn.nnn) have different xx and yy values, then FM sorts these elements.

FM seems to be looking for left right and did an alpha sort. It assumes that they are all sorted so the third sequence (for example, xx.yy.zz.nnn - the end of zz) is also the same in all terms, i.e. that it is not beyond the third period to see other terms of "nnn".

Please this file as a bug to: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform&product=63

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Method to apply a style HTTP in Cascades/QML?

Something like AJAX. What is the equivalent in Cascades/QML? What classes should I Explorer in the API?

Advice would be greatly appreciated.

Applications vary.

http://someservice.com/v1/do/blah

http://someservice.com/v1/do/meh

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I'll take the exit and probably put it in a list (much like the sample application of stamp collector)

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Thank you!

Hello

I wrote a simple example application to show how to create an application that consumes a twitter feed and display JSON content crawled in a standard list view.

First create a new project named 'Twitter', by selecting file-> New-> BlackBerry Cascades C++ Project, and then choose the option "Empty project" Standard.

We will start by creating a class called TwitterRequest responsible for the download and let us know through the slots and signals that the twitter JSON data is available. This class must be placed in your src/folder of the project

TwitterRequest.hpp

/*
 * Copyright (c) 2011-2012 Research In Motion Limited.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef TWITTERREQUEST_HPP_
#define TWITTERREQUEST_HPP_

#include 

/*
 * This class is responsible for making a REST call to the twitter api
 * to retrieve the latest feed for a twitter screen name. It emits the complete()
 * signal when the request has completed.
 */
class TwitterRequest : public QObject
{
    Q_OBJECT
public:
    TwitterRequest();
    virtual ~TwitterRequest();

    /*
     * Makes a network call to retrieve the twitter feed for the specified screenname
     * @param screenname - the screen name of the feed to extract
     * @see onTimelineReply
     */
    void getTimeline(QString screenname);

public slots:
    /*
     * Callback handler for QNetworkReply finished() signal
     */
    void onTimelineReply();

signals:
    /*
     * This signal is emitted when the twitter request is received
     * @param info - on success, this is the json reply from the request
     *               on failure, it is an error string
     * @param success - true if twitter request succeed, false if not
     */
    void complete(QString info, bool success);
};

#endif /* TWITTERREQUEST_HPP_ */

TwitterRequest.cpp

/*
 * Copyright (c) 2011-2012 Research In Motion Limited.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "TwitterRequest.hpp"
#include 
#include 
#include 
#include 
#include 

TwitterRequest::TwitterRequest()
{
}

TwitterRequest::~TwitterRequest()
{
}

void TwitterRequest::getTimeline(QString screenname)
{
    QNetworkAccessManager* netManager = new QNetworkAccessManager();
    if (!netManager)
    {
        qDebug() << "Unable to create QNetworkAccessManager!";
        emit complete("Unable to create QNetworkAccessManager!", false);
        return;
    }

    QString queryUri = "http://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&screen_n...";
    queryUri += screenname;
    QUrl url(queryUri);
    QNetworkRequest req(url);

    QNetworkReply* ipReply = netManager->get(req);
    connect(ipReply, SIGNAL(finished()), this, SLOT(onTimelineReply()));
}

void TwitterRequest::onTimelineReply()
{
    QNetworkReply* reply = qobject_cast(sender());
    QString response;
    bool success = false;
    if (reply)
    {
        if (reply->error() == QNetworkReply::NoError)
        {
            int available = reply->bytesAvailable();
            if (available > 0)
            {
                int bufSize = sizeof(char) * available + sizeof(char);
                QByteArray buffer(bufSize, 0);
                int read = reply->read(buffer.data(), available);
                response = QString(buffer);
                success = true;
            }
        }
        else
        {
            response =  QString("Error: ") + reply->errorString() + QString(" status:") + reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toString();
            qDebug() << response;
        }
        reply->deleteLater();
    }
    if (response.trimmed().isEmpty())
    {
        response = "Twitter request failed. Check internet connection";
        qDebug() << response;
    }
    emit complete(response, success);
}

Then, replace the main.qml with the following content.

import bb.cascades 1.0

Page {
    content: Container {
        background : Color.DarkRed
        layout : DockLayout {
        }
        ListView {
            layoutProperties : DockLayoutProperties {
                verticalAlignment : VerticalAlignment.Center
            }
            objectName : "basicTimelineView"
            id : basicTimelineView
            listItemComponents: [
                ListItemComponent {
                    type: "item"
                    StandardListItem {
                        statusText: {
                            ListItemData.created_at
                        }
                        descriptionText: {
                            ListItemData.text
                            }
                    }
                }
            ]
        }
    }
    onCreationCompleted: {
        cs.getTimeline("ladygaga");
    }
}

This is a simple page with a ListView with standard components, indicating the date and the content of the tweet. As you can see, immediately after that page is created a call is made in the c++ code by using the context property 'cs' set in the constructor for the App to retrieve the latest tweets of the usernamed "ladygaga". To learn more about the call c ++ QML here https://bdsc.webapps.blackberry.com/cascades/documentation/ui/integrating_cpp_qml/index.html

Finally, this linking is the App class. It uses slot machines to handle the "full" signal generated by the class TwitterRequest when data are available, analyzes the data in a model of GroupData and fills the ListView with the recovered data.

App.HPP

#ifndef APP_H
#define APP_H

#include 
#include 

class App : public QObject
{
    Q_OBJECT

public:
    App();

    /*
     * Called by the QML to get a twitter feed for the screen nane
     */
    Q_INVOKABLE void getTimeline(QString screenName);

public slots:
    /*
     * Handles the complete signal from TwitterRequest when
     * the request is complete
     * @see TwitterRequest::complete()
     */
    void onTwitterTimeline(QString info, bool success);

protected:
    bb::cascades::AbstractPane* m_root;
};

#endif // ifndef APP_H

App.cpp

#include 
#include 
#include 
#include 
#include 

#include "App.hpp"
#include "TwitterRequest.hpp"

using namespace bb::cascades;

App::App()
{
    QmlDocument *qml = QmlDocument::create("main.qml");
    qml->setContextProperty("cs", this);

    m_root = qml->createRootNode();
    Application::setScene(m_root);
}

void App::getTimeline(QString screenName)
{
    //sanitize screenname
    QStringList list = screenName.split(QRegExp("\\s+"), QString::SkipEmptyParts);
    if (list.count() <= 0)
    {
        qDebug() << "please enter a valid screen name";
        return;
    }
    QString twitterid = list[0];

    TwitterRequest* tr = new TwitterRequest();
    tr->getTimeline(twitterid);
    connect(tr, SIGNAL(complete(QString, bool)), this, SLOT(onTwitterTimeline(QString, bool)));
}

void App::onTwitterTimeline(QString info, bool success)
{
    if (!success)
    {
        qDebug() << "Error retrieving twitter fee: " << info;
        return;
    }

    ListView* list = m_root->findChild("basicTimelineView");
    if (!list || list->dataModel() != NULL)
    {
        qDebug() << "basic list already populated";
        return; //if basic timeline list not found or already populated do nothing
    }

    // Create a group data model with id as the sorting key
    GroupDataModel* dm = new GroupDataModel(QStringList() << "id_str");
    dm->setGrouping(ItemGrouping::None);

    // parse the json response with JsonDataAccess
    bb::data::JsonDataAccess ja;
    QVariant jsonva = ja.loadFromBuffer(info);

    // the qvariant is an array of tweets which is extracted as a list
    QVariantList feed = jsonva.toList();

    // for each object in the array, push the variantmap in its raw form
    // into the ListView
    for (QList::iterator it = feed.begin(); it != feed.end(); it++)
    {
        QVariantMap tweet = it->toMap();
        dm->insert(tweet);
    }

    // set the data model to display
    list->setDataModel(dm);
    list->setVisible(true);
}

I hope that's enough to help you get started. There are many improvements that can be made, for example using multiple pages, load the ajax style tweets, even having a page where the twitter user name can be changed, and so on of error handling. Good luck!

See you soon

Swann

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It seems that the ability to do so has been disabled in Windows 7 and 8 to win... I wasn't happy either.

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Hello
Anyone successfully using the APEX_ITEM. SELECT_LIST_FROM_QUERY_XL at APEX 5.0 API call?
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The errors illustrated:
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~ Nico

Nico_M wrote:

Anyone successfully using the APEX_ITEM. SELECT_LIST_FROM_QUERY_XL at APEX 5.0 API call?

I copied the exact example of documentation and I get the error below.

SELECT APEX_ITEM. SELECT_LIST_FROM_QUERY_XL (3, job, 'Employment SELECT DISTINCT FROM emp') job

WCP

The errors illustrated:

Failed to parse the SQL query:

ORA-00932: inconsistent data types: expected - got CLOB

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Message was edited to add the living example

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Here's how I modified your example to work around the bug:

http://ns.Adobe.com/MXML/2009.
xmlns:s = "library://ns.adobe.com/flex/spark".
xmlns:MX = "library://ns.adobe.com/flex/mx".
minWidth = "955" = "600" minHeight
backgroundColor = "#E7E7E7."
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        Import mx.collections.XMLListCollection;
Import mx.events.FlexEvent;
protected function application1_creationCompleteHandler(event:FlexEvent):void
{
testGrid.dataProvider = new XMLListCollection (testData.item);
}
]]>






                    1
                    Gabriele
                    Genta
                    5
                    molto


                    10
                    Weill
                    Pallino
                    10
                    poco







                    Import mx.collections.ICollectionView;
Import mx.collections.ISort;

public void save (): Boolean
{
If (! validate())
Returns false;

newData:Object var = value;
var property: String = column.dataField;
Object: data var = data;
var typeInfo:String = "";
for each (var variable: XML in describeType (data) .variable)
{
If (property == [email protected] ())
{
typeInfo = [email protected] ();
break;
}
}

If (typeInfo is "String")
{
If (!) (newData) is String))
newData = newData.toString ();
}
ElseIf (typeInfo == 'As')
{
If (!) () newData is uint))
newData = uint (newData);
}
ElseIf (typeInfo == 'int')
{
If (!) (newData) is int))
newData = int (newData);
}
ElseIf (typeInfo == "Number")
{
If (!) (newData) is number))
newData = Number (newData);
}
ElseIf (typeInfo == "Boolean")
{
If (!) (newData) is Boolean))
{
var strNewData:String = newData.toString ();
If (strNewData)
{
newData = (strNewData.toLowerCase () == 'true')? true: false;
}
}
}

If (property & data [property]! == newData)
{
If the data is sorted, disable sorting for published data.
var sort: ISort = null;
If (dataGrid.dataProvider ICollectionView)
{
var dataProvider:ICollectionView = ICollectionView (dataGrid.dataProvider);
If (dataProvider.sort)
{
type = dataProvider.sort;
dataProvider.sort = null;
}
}

var oldData:Object = data [well];
data [property] = newData;
dataGrid.dataProvider.itemUpdated (data, property, oldData, newData);

Restoration of the kind. The data will be not sorted due to this change.
If (out)
. Fate ICollectionView (dataGrid.dataProvider) = classification;
}

Returns true;
}
]]>







Editable = "true" selectionMode = "single-cell".
itemEditor = "{ClassFactory (MyDefaultEditor) new}" >

APEX. ITEM.popupkey_from_query does not meet the relevant line
I have a manual tabular presentation that contains a context field. When I click the pop-up icon, it displays the pop-up window. I select the line I want to fill in the field with, but he does not fill in the field correctly. He usually fills the 2nd, but not always.

I have included the form in the sample Application as a page 22 of apex.oracle.com:

Workspace: RGWORK
Username: TESTER
Password: test123
Application: Example Application - 25152 (not Sample Application 20726)
Page: 22: Advanced RG tabular forms

Top 22 should be run directly.

I appreciate your help.

Robert
http://apexjscss.blogspot.com
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You must disable sorting of your form.

BR, Jari

Tabular: new lines problem
Hello

I built a tabular presentation, with the possibility to add a line using the following construction:

Select the null ID
Field1 null
of the double
where: request = 'ADD_ROW.
UNION ALL
Select id
Field1
table

It works very well. Adding an application to the Add button, the new line is created on top of my tabular presentation.

However, if I add the option in the attributes report for users to be able to sort the columns, the apears to the bottom line! I also put the "Sorting NULL values" option to "FIRST."

Why is this influence, given that my query results in a null-line value and sort options are OK, still the row above apears!

Help?? Is this a bug in APEX?

Edited by: Voxie2 may 3, 2010 13:25
Voxie2,

Technically, Yes, it's a bug. Your best bet is to disable sorting on tabular forms for now. Maybe this will be fixed in APEX 4...

Kind regards
Dan

Blog: http://DanielMcGhan.us/
Work: http://SkillBuilders.com/apex/

How to disable automatic sorting in windows 7 - cut / paste issue

Hello

I use a folder image with thumbnails with files in numerical order.

I can manually drag and drop the file from one place to another without automatic sorting.

That is to say. I can drag the first file in the folder at the end of the list.

But when I use cut and paste, the file does not move and stays in the same order.

Is there a way to change its behavior like xp... where do drag and drop, or cut and paste works the same way?

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William

For those of you who are gifted in registry, visit this link:

http://www.Winhelponline.com/blog/disable-full-row-select-Explorer-Windows-7/

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Knowing Microsoft, they will empty this page to try to prevent some users to solve this annoying problem, so I suggest to copy the content of the link and stick to one. DOC or. TXT and share it on other sites there is.

GroupDataModel sorting ascending or descending

How to sort data on GroupDataModel with decreasing or increasing of behavior?

Hello

using the code below in the qml you can sort Ascending or descending data model.

Disable sorting in GroupDataModel

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