How to dynamically add an Option in the drop-down list?

I have this code:

{Drop-down list

ID: list

Title: 'list '.

onCreationCompleted: {}

opion var = new Option();

opion. Text = "Hello";
opion. Value = 4;

List.Add (opion);

}

After the launch of the application, the list is empty.

Why my code does not work?

It is easy to dynamically add options

first add this to your attachedObjects:

ComponentDefinition {
            id: optionDefinition
            Option {
            }
        }

then do something like this

var newOption = optionDefinition.createObject()
            newOption.text = ...
            newOption.value = ...
            newOption.description = ...
            newOption.selected = ....
            yourDropDown.add(newOption)

Tags: BlackBerry Developers

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Command to refresh a calculated field when you select an option from the drop-down list box

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Options in the drop-down list in HTML/PDF output using Adobe InDesign.

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Can not see the "wireless connection" option in the drop-down list in 'sharing' under the ics. Trying to establish an ad hoc connection.

I'm trying to set up an ad-hoc connection between two laptops. I created a network. When I right click and select Properties. On the sharing tab, there is a check box for "allow other users to connect to this network. Below that, there is a drop down menu to "connecting home network." My problem is that I can't "wireless connection" under this sow drop andhence cannot establish a connection. Help, please! Using windows 7 64 bit home premium and have ralink 5390 adapter. I have internet through a wireless internet service provider. I use "Reliance Netconnect + wireless internet".

Hi Amit,

Please refer to this link and check if this helps you,

Set up a computer-to-computer (ad hoc) network:

http://Windows.Microsoft.com/en-us/Windows7/set-up-a-computer-to-computer-ad-hoc-network

Can I add a line from the drop-down list of a PDF form?

I have a pdf form that has drop downs for my account managers names - I don't have a version of excel and I like this form - can I make changes to the pdf form? I tried to convert in excel, but it does not work

Hi amym,.

You can use Acrobat to edit the PDF form. If you do not have Acrobat, you can try it free for 30 days. Please visit http://www.adobe.com/products/acrobat.html for more information.

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Best,

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How can I print to PDF - it is not listed as an option in the drop-down list?

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Thank you!

Hi yourmom11,

If you want to print in PDF format, you need Acrobat. Please see print to PDF Windows 7, Vista, XP, Mac | Adobe Acrobat XI.

Please let us know if you have any additional questions.

Best,

Sara

How to write Save function based on the drop-down list box selection data in app mxml flex4 with as3

Hi all
I'm working on the application web flex4 with as3.
I have a doubt, I've created a mxml it has two text boxes, except the button and a combo box that is has two option as a percentage and the amount.
my needs are I gave here.
need 1: when I choose option amount that two text boxes does not have to be editable.when I select text tat box two percentage option will be editable.
need 2: when I select the percentage in combox option and two text boxes are empty, and then click the button Save-> I want to display warning msg
need 3: when I select the option amount combox and the two boxes are emptu click the button Save-> I don't want any warning messages.
How to validate it and how to write backup for this function.
This is my sample code:
list box ID = baseAmtPer
ID TextBox1 = maxCommAmt.text
ID = baseAmtPer.text text box
If (((baseAmtPer.editable!=true) & & (maxCommAmt.editable! = true)) & & ((baseAmtPer.text=="") & &(ma xCommAmt.text=="")) |) (baseAmtPer.text == "") | (maxCommAmt.Text=="")) -> This condition not allowing while I'm selecing amount in combo box. How the TWO TEXT BOX WILL BE EMPTY for this problem
{
Alert.Show ("enter in all areas", "Information");
}
on the other
{
some encodings
}

Hello

Please go through the following Code:

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 >

Import mx.collections.ArrayCollection;

Import mx.controls.Alert;

Import spark.events.IndexChangeEvent;

protected function button1_clickHandler(event:MouseEvent):void

{

If (comboBox.selectedItem == "Percentage" & textBox1.text == "" & textBox2.text == "") {}

Alert.Show ("enter the values");

}

}

protected function comboBox_changeHandler(event:IndexChangeEvent):void

{

{if(ComboBox.SelectedItem=="Amount")}

textBox1.editable = false;

textBox2.editable = false;

}

else {if(comboBox.selectedItem=="Percentage")

textBox1.editable = true;

textBox2.editable = true;

}

}

]]>

Amount

Percentage

Thank you and best regards,

------------------------------------------------------------------------------------------ --

Vibhuti Gosavi . [email protected] | www.infocepts.com

------------------------------------------------------------------------------------------ --

dynamically load the Options in a drop-down list in C++

Hey guys,.

I'm trying to dynamically load items Option in a drop-down list by using C++. I have a function in my class of WorkManager file that does the trick:
```
QStringList WorkManager::getListOfItems() {
    int i = 0;
    QStringList taskNames;  // used for debugging mainly, so i can print the list out to debug
    QList  myObjects = m_model->toListOfObjects();
    DropDown * dpList = bb::cascades::Application::instance()->scene()->findChild("scriptListDropDown");
    if (dpList != 0 ) {
        dpList->setSelectedOption(0);
        dpList->removeAll();
        for (i = 0; i < myObjects.size(); i++) {
            Task * myTask = (Task *) myObjects[i];
            taskNames.append(myTask->taskName());
            dpList->add(Option::create().text(myTask->taskName()).value(myTask->command()));
//          delete myTask;  // do I need to delete the task object?
        }
//      qDebug() << "WorkManager::getLIstOfItems(), ---> list of tasks is : " << taskNames;
        return taskNames;
    } else  {
        qDebug() << "WorkManager::getListOfItems(), ---> dpList was 0";
        return taskNames;  // empty list
    }
}
```
I also found this thread:http://supportforums.blackberry.com/t5/Native-Development/Adding-options-to-a-DropDown-from-c/m-p/21... that helped me get the filled drop-down list when the application starts.

However, I need to re - fill list from time to time, when the list (a GroupDataModel) changes. calling the function above a second time anywhere in my application appears to hang the application immediately.

I think / thought it might have something to do with the slot for the onSelectedValueChanged, but I can't understand it.

It seems down right when I do dpList-> removeAll().

I also can't seem to find the right place to call this function to an object of type in my class. I think it's because the drop-down list is not ready yet as the dpList * is always 0 unless what I call after the line:
```
app->setScene(root);
```
in the applicationui.cpp file. Calling it works on start-up, but trying to update the list later (by removeAll() and recreate) causes the app crashing.

is there a better way to do it? .. and make it safer? I can't understand how to do this.

Thank you!

J

First, drop the:
```
dpList->setSelectedOption(0);
```
Not only if it is not necessary, but it will explode your application if the function is called when there is already no options in the menu dropdown.

Also, do NOT delete the task, because it is still owned by the datamodel. I also see that you use type casting C, which just blindly accepts your cast, even if it's a mistake. Instead, if you know for sure what kind it will be this way instead:
```
Task* myTask = static_cast(myObjects[i]);
```
If you are not sure if the type you are casting the is the type you need, use the dynamic_cast instead:
```
Task* myTask = dynamic_cast(myObjects[i]);
```
The advantage of this more static_cast , is that if you try to perform a type cast is not compatible, then myTask will be set to NULL.

Alternatively, Qt offers a replacement for dynamic_cast which works on platforms where is not regular C++ casts.
```
Task* myTask = qobject_cast(myObjects[i]);
```
It is functionally equivalent to dynamic_cast, but as I said, it works on all platforms that Qt exists, whereas dynamic_cast cannot.

Once you did get back to us.
oddboy wrote:

Hey guys,.

I'm trying to dynamically load items Option in a drop-down list by using C++. I have a function in my class of WorkManager file that does the trick:
```
QStringList WorkManager::getListOfItems() {
    int i = 0;
    QStringList taskNames;  // used for debugging mainly, so i can print the list out to debug
    QList  myObjects = m_model->toListOfObjects();
    DropDown * dpList = bb::cascades::Application::instance()->scene()->findChild("scriptListDropDown");
    if (dpList != 0 ) {
        dpList->setSelectedOption(0);
        dpList->removeAll();
        for (i = 0; i < myObjects.size(); i++) {
            Task * myTask = (Task *) myObjects[i];
            taskNames.append(myTask->taskName());
            dpList->add(Option::create().text(myTask->taskName()).value(myTask->command()));
//          delete myTask;  // do I need to delete the task object?
        }
//      qDebug() << "WorkManager::getLIstOfItems(), ---> list of tasks is : " << taskNames;
        return taskNames;
    } else  {
        qDebug() << "WorkManager::getListOfItems(), ---> dpList was 0";
        return taskNames;  // empty list
    }
}
```
I also found this thread:http://supportforums.blackberry.com/t5/Native-Development/Adding-options-to-a-DropDown-from-c/m-p/21... that helped me get the filled drop-down list when the application starts.

However, I need to re - fill list from time to time, when the list (a GroupDataModel) changes. calling the function above a second time anywhere in my application appears to hang the application immediately.

I think / thought it might have something to do with the slot for the onSelectedValueChanged, but I can't understand it.

It seems down right when I do dpList-> removeAll().

I also can't seem to find the right place to call this function to an object of type in my class. I think it's because the drop-down list is not ready yet as the dpList * is always 0 unless what I call after the line:
```
app->setScene(root);
```
in the applicationui.cpp file. Calling it works on start-up, but trying to update the list later (by removeAll() and recreate) causes the app crashing.

is there a better way to do it? .. and make it safer? I can't understand how to do this.

Thank you!

J

How can we change the visibility of the drop-down list after its creation?

I create a QML document with three drop-down lists. Depending on how "trans_type" is selected, only to drop Extra should be displayed. If the option "account" is selected, the drop-down list is visible and the DD category is hidden. The reverse is true if the 'category' option is selected.

Here's how I build my QML document:

void Testing::updateFields()
{
    if (m_form.isNull())
        return;

    // Clear all fields from the form
    m_form->removeAll();

    // Clear the internal mapping
    m_fields.clear();

    //get the transaction page ready
    QmlDocument *qml = QmlDocument::create("asset:///transaction.qml").parent(this);

    DropDown* trans_type = qml->createRootObject();
    trans_type = DropDown::create().title("Transaction Type");
    trans_type->add(Option::create().text("Accounts").value("0"));
    trans_type->add(Option::create().text("Categories").value("1"));
    trans_type->setSelectedIndex(0);
    connect(trans_type, SIGNAL(selectedIndexChanged (int)), this, SLOT(onDDChange(int)));
    m_form->add(trans_type);

    DropDown* account_dd = qml->createRootObject();
    account_dd = DropDown::create().title("Account");
    account_dd->add(Option::create().text("No Account").value("0"));
    //... code to populate account drop down here...
    account_dd->setSelectedIndex(0);
    m_form->add(account_dd);

    DropDown* category_dd = qml->createRootObject();
    category_dd = DropDown::create().title("Category").visible(false);
    category_dd->add(Option::create().text("No Category").value("0"));
    //... code to populate category drop down here...
    category_dd->setSelectedIndex(0);
    m_form->add(category_dd);

}

Everything is displayed properly on the page. onDDChange is called and it shows a Toast that the option has been selected. Here is what I currently have in onDDChange:

void Testing::onDDChange(const int &info)
{
    QString msg = "Switched To: ";
    if(info == 0) {
        msg = msg + "Account";
    } else if(info==1) {
        msg = msg + "Category";
    } else {
        msg = msg + "Unrecognized";
    }
    showToast(msg);
}

I can't figure out how to get the drop down lists to be visible/hidden depending on the needs. There is a function "setVisible()" for the drop, but I can not understand how to operate without the app crashing. http://developer.BlackBerry.com/Cascades/reference/bb__cascades__dropdown.html#function-setVisible-v...

My questions are:

1. How can I change the visibility of the appropriate dropdown lists in a different function when the status of the main drop-down list is changed?

2. is there a way to define an id for drop-down lists? If not, how am I supposed to go into the drop-down lists in a variable later so I can receive their value or change the visibility?

Any help would be great. I've been struggling with this for a while.

There are a number of methods you could use signals and slots between your code and the QML or something simple is assign "objectName" as a property, then this search in C++.

http://developer.BlackBerry.com/Cascades/documentation/dev/integrating_cpp_qml/

Something like

DropBox db = mRootContainer->findChild("dropboxname");
db->setVisible(true);

Unable to choose in the drop-down list

I don't know what his name, so I'll give an example. I go on YouTube and open my subscriptions & playlist. I push the tab more, and I can see my other titles of the playlist. When I try to type on one of the titles, the option button close. I can not open & take an option on a website. If I have the chance and I was fast enough to push an option before the box closes it will open the file or the site without problem. I tried double tapping on the option button to keep it open, but it never works. Anyone know how to fix this?

Hello

Thanks for posting on the Microsoft community.

If I have understood correctly, you are unable to choose an option in the drop-down list.

If you have another browser option, I suggest that you try to open the particular website on this browser and see if it works.

Please perform the following methods to resolve the problem, if you use Internet Explorer as your browser:

Method 1:

This can be caused because of compatibility problems with the Web site. Then I suggest that you try to open the Web site in compatibility mode.

Check out the following link to open a website in compatibility mode:

http://Windows.Microsoft.com/en-us/Internet-Explorer/use-compatibility-view#IE=ie-11

If this does not work, try Method 2.

Method 2:

Try resetting Internet Explorer.

Note: By resetting Internet Explorer settings, return you it to the State wherever it was when it was first installed on your computer. This is useful to solve the problems that could be caused by the settings that have been changed after installation.

Warning: Reset the Internet Explorer settings can reset security settings or privacy settings that you have added to the list of Trusted Sites. Reset the Internet Explorer settings can also reset parental control settings. We recommend that you note these sites before you use the reset Internet Explorer settings. Also re - activate the Add-ons.

Check out the following link and follow the steps to reset Internet Explorer:

http://support.Microsoft.com/kb/923737

I hope this helps. Feel free to answer us back with the results.

Display the export value of the drop-down list instead of the element

I'm showing the value to the export of a drop-down list instead of the selected option or the user selects BLACK, but the value of exports of BLK is actually displayed. I can find many discussions on how to get the value of the exports and display it or use it to trigger another answer in another area and I can usually tweak my existing JavaScripts when I need something new, but I just can't wrap my head around this!
This is my last attempt (failed)
var f = this.getField ("eyes");
If (event.value is 'Black - BLK')
f.Value = "BLK".
I use Acrobat PRO DC.
Any help is appreciated,
Thank you
Xavier

I've been doing this for a long time and have never heard of anyone who wants something like this, so it is interesting. Remove your current script and try the following script Format customized drop eyes:

Custom drop-down list Format script

Event.Value = event.target.getItemAt (event.target.currentValueIndices, true);

This defines what is displayed in the drop-down list in the value of exports of the selected item. Select the 'Value selected to validate immediately' option to the drop-down list for smoother operation.

Update from the drop-down list on the duration

Hello, I'm fairly new to Java and Blackberry development.

I am doing an application with a few editable text fields and drop-down lists. What I want to do is to change the options from the drop-down list (ObjectChoiceField), according to what is written on the text fields, all without pressing a button. Can someone give me a hand here? I thought to use invalidateAll to redraw the field, but I'm not sure.

Thank you.

OK, something else, this looks bad for me:

your having

unitChoiceField.setChangeListener (editListener);

But editListener is not defined until after that, so with that statement, you're

the listener of null changes.

Put this line after you set your headset to changes.

Also we say something "does not work", is not very useful. If please do some debugging and tell us what he does not she should do this, rather than saying that it does not work. Imagine that you took your car be fixed and told them that it did not work. Would they be able to fix it?

Defining form fields such as required based on the entry in the drop-down list

I'm trying to set the properties of a few form fields as required in the case of a specific value is selected from a drop-down list.
I entered the code of the tab actions from the drop-down list properties below > mouse down > run a java script. The problem is that it works only if I come out and enter again the drop-down list. "I tried to invoke the code with"Mouse down","Mouse entry", out of the mouse ' none of them worked unless I go out and again the drop-down list.
Any suggestions?
Thank you!
var devused is this.getField ("device");.
var comptype is this.getField ("Type of complaint");.
var proname = this.getField ("product name");
var feels = this.getField ("sent to the sponsor");
If (comptype.value == 'Associated Product complaint') {}
devused. Required = true;
proname. Required = true;
smells. Required = true;
}
else {}
devused. Required = false;
proname. Required = false;
smells. Required = false;
}

What you describe is the way documented in what forms Acrobat and Acrobat JS behave by Form Event Processing

For your described form, we can use a custom format for the field drop-down list script:

If (event.willCommit! = true & event.changeEx! = "")
{
var devused = this.getField ("device");
var proname = this.getField ("product name");
Envoy of var = this.getField ("sent to the sponsor");
Switch (Event.changeEx)
{
case "related product": complaint
devused. Required = true;
proname. Required = true;
smells. Required = true;
break; Go at the end of the switch;
Repeat fdor each value of the option in the drop-down list.
by default:
If no match for the above cases, it is found;
devused. Required = false;
proname. Required = false;
smells. Required = false;
break;
} / / end of switch event.changeEx;
} / / end not true willCommit;

You must set the ' Commit selected value immediately "and as one moves upwards or downwards the options, the related fields will change and stay together when you exit the field note that the field name is not used in the script because the field is the event object until it leaves the field.

How to dynamically add an Option in the drop-down list?

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