combo box data binding

Similar Questions

• Someone advise me on how to record and remember the actual information from a group of combo boxes?

  I have a set of combo boxes save a devices status information. I would like to record and remind all selections. I know there are properties to access the selected items, but the research on, I do not know the technique to do so. I want to save/recall in XML format. I made an attempt, and he saved the combo box data, but not the selections. Thanks for any help.

  
  

• How can I update by program table combo box control type def?

  I use LV 8.6.1 and I am trying to create a table control panel object in which the user can select an item to list box for each element of the array.  I also have to periodically update the list of values.  Currently, I have configured the drop-down list box (selection of Automation sequence - see attached) as a type non-stricte def so I can write news channels to the list values when I need to.  But I can't seem to find a way to get the table (list of batches - see rasthaus) fill the new value drop-down list box.

  Automation box refelcts the new string sequence selection that I add programmatically, but the combo boxes in the batch list table control do not have the new channel.

  Anyone have any ideas?

  I have attached the screenshot of the drop-down list and table controls.

  Thank you

  Dan

  I considered that mention strings and values have a property that cannot be stored in a typedef, but when I tried it out, it seemed that it was.  So I just did not comment on that.  Maybe the strings and values may be among the typedef, maybe not.  The values of the controls certainly cannot.  Strings and values can be in kind of a gray area.  But you can certainly expect changes to a control to automatically update another control, because they are typedefs.  You cannot change the typedefs during execution.

  Let's put another example that has nothing to do with the values.  You have a regular typedef of a digital.  It is saved with the text in red in scientific notation.  You place two instances of this on your drawing.  You can programmatically change each other colors or other digital formats.  A change does not affect the other.  If it's a strict typedef, you would be locked in the way in which it was saved and could not change it programmatically.

  Take a look at this.  If you cannot programmatically, to update your channel list and values for a single combobox (a scalar string) you will be able to put up-to-date for when the combobox control is the data type for a table.  Simply get a reference to the element of the array.  It does not use typedefs anyway.

  

• How to use the data binding on a cluster?

  Hello

  I just discovered the data binding and used it on some primitive controls/indicators. I love the cleanliness of the approach (no additional querying and son required!)

  Now, this page gives to think I can link a cluster with a shared too variable. However, when I right click-> properties, I see that the tabs appearance and Documentation (and I know that I did not accidentally choose an element inside the cluster, because (1) there is a typedef strict, and said the title of (2) 'The Cluster Properties' dialog box). Where can I find the data binding tab?

  Thank you

  Hi JKSH,

  What you're doing is possible if you make the file .ctl as the definition of type rather than a strict definition of type. With a strict definition of type all instances of the same .ctl file link that is why you cannot use data binding.

• Data binding occurs after onAdded() in CellRenderer?

  Hi all, I extend the qnx.ui.listClasses.CellRenderer for my TileList. I noticed that sometimes the this.data would be null in my overridden onAdded() function.

  After some tests, I realized that if I use a timer to check this.data seconds later, it would be filled with the correct data, it seems that the data binding happens a moment after the onAdded() function is called.

  I'm happy to rely on the timer to the time delay, but someone has a better solution? Is there something else I should listen to instead of according to onAdded()?

  Hey,.

  This kind of thing makes me forget all sleep haha clearly that I don't SLEEP much at all!

  OK, so I think I got the fix for this. instead of simply relying on onAdded() method that we must look in the drawLabel() method. in the contstructor this time, we do the new CheckBox object where our customization starts later with so we don't have duplicates of this object that is created each time the drawLabel method is called. instead of making the bulk of the work in the onAdded method, we will just to remove the object from the label that is displayed via the cell rendering engine. After that when the drawLabel() method is called, which is when we do our customization. mine includes a checkbox just to test. then we finally remove our object as usual in the onRemoved() method.

  Here's the code for update for the rendering engine:

  package
  {
      import flash.events.Event;
      import flash.events.MouseEvent;
      import flash.text.TextFieldAutoSize;
  
      import qnx.ui.buttons.CheckBox;
      import qnx.ui.buttons.LabelPlacement;
      import qnx.ui.listClasses.AlternatingCellRenderer;
      import qnx.ui.listClasses.List;
      import qnx.ui.text.Label;
  
      public class MyCustomCellRenderer extends AlternatingCellRenderer
      {
          /*
          * Place the object out here so that other methods can
          * access it
          */
          private var newCheckBox:CheckBox;
  
          public function MyCustomCellRenderer()
          {
              super();
  
              /*
               * Add the checkbox here so we dont keep re-adding a check box
               * whenever the onAdded method is called. other wise there
               * would be a lot of objects for checkbox
              */
              newCheckBox = new CheckBox();
          }
          override protected function onAdded():void
          {
              super.onAdded();
  
              /*
               * Do not want to use the label object at all. we want
               * to fully customize our cell renderer. for some reason
               * the label object is not considered a child object
               * when the drawLabel method is called so we must
               * removed it in this method where it is considered a
               * child object
              */
              removeChild(label);
          }
          override protected function drawLabel():void
          {
              if (this.data)
              {
                  /*
                   * Sometimes this function is called prematurely when there
                   * is no data object available and it is null so we only
                   * do our custom label when there is a data object available
                  */
                  newCheckBox.width = 500;
                  newCheckBox.label = this.data.label;
                  newCheckBox.labelPadding = 10;
                  newCheckBox.labelPlacement = LabelPlacement.RIGHT;
                  newCheckBox.setPosition(10,10);
  
                  addChild(newCheckBox);
              }
          }
          override protected function onRemoved():void
          {
              super.onRemoved();
  
              /*
              * Remember to remove the checkbox object
              */
              removeChild(newCheckBox);
  
          }
      }
  }
  

  I tested it on a list of single column and also a tilelist component and how it works to 100%. Let me know if I missed something. happy you raised this point! Good luck!

• Combo Box Manipulation of external file

  I looked and looked and looked at can not find much info on it. And I do not get the case. My ultimate goal was to load values from a text file called "data.txt" which would be stored with the pdf form. But I can not even understand how to fill the combo box list via code. Can someone help me or tell me if it is possible to load the values from a text file?

  I have a drop-down list named 'ItemCode' area, but still I can't understand how to add items to the box through code only.

  

  I did it on Page 1 open but it never works for me for some reason that I can't understand.

  //-------------------------------------------------------------

  -Do not change the tags XML-

  //-------------------------------------------------------------

  < Page Actions >

  < ACRO_source > Page1:Page Open: Action1 < / ACRO_source >

  < ACRO_script >

  / * belongs to: Page-stock: Page1:Page open: Action1 * /.

  var ItemCode = this.getField ("ItemCode");

  ItemCode.clearItems ();

  ItemCode.setItems ("Test");

  < / ACRO_script >

  < / Actions page >

  < AcroForm >

  < ACRO_source > CopyBillAddy:Annot1:MouseUp:Action1 < / ACRO_source >

  < ACRO_script >

  / * belongs to: AcroForm:CopyBillAddy:Annot1:MouseUp:Action1 * /.

  var ABC = this.getField ("CopyBillAddy");

  var ST = this.getField ("Ship_To");

  var BT = this.getField ("Bill_To");

  If (CBA.value == 'Yes') {}

  ST.value = three.value

  } Else if (CBA.value == 'Off') {}

  ST.value = ST.value

  }

  < / ACRO_script >

  < / AcroForm >

  < AcroForm >

  < ACRO_source > Invoice_Number2: calculate < / ACRO_source >

  < ACRO_script >

  / * belongs to: AcroForm:Invoice_Number2: calculate * /.

  (/ * BVCALC Invoice_Number1 EVCALC **/event.value=AFMakeNumber(getField("Invoice_Number1").value)

  < / ACRO_script >

  < / AcroForm >

  The argument for the setItems method must be an array, not a string:

  ItemCode.setItems (["Test1", "Test2"]);

  For more information, see: http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.752.html

  And also this tutorial: http://acrobatusers.com/tutorials/2007/js_list_combo_livecycle/

• Combo box not open links in the browser

  Hello

  I use the Combo box component.

  I gave to the drop-down list box the instance name Mazonedelistederoulante

  I added a few tags and web address

  Here is my code:

  myComboBox.addEventListener (Event.CHANGE, newAddress);

  function newAddress (evt) {}
  var myURL = new URLRequest (myComboBox.selectedItem.data);
  navigateToURL (myURL);

  
  }

  Publish the movie with HTML, while it resides in a HTML file, but I get the following message.

  

  No one knows what causes this and how to stop it from coming so that the drop-down list box works and takes you to the web page?

  Thank you

  Babs

  It is a breach of security as your 'local' swf attempts to talk to the internet. Put your swf in a page and then host this page. You should see the error disappears.

  For local testing, tap the 'Settings' tab, locate your file and give it permission. See this section of the settings page for info:

  http://www.Macromedia.com/support/documentation/en/flashplayer/help/settings_manager.html# 117164

• Prevent the self-selection of list box data.

  I have a combo box that loads the data from a field in collection ArrayCollection which is populated by some time after the end of the loading of the application.  Is there a property I can set for the drop-down list box don't select anything once that the data meet the ArrayCollection collection?  I just always to choose a white so that the user is obliged to select something from the list after loading in...

  Info on the guest, in the case where it is not

  http://livedocs.Adobe.com/Flex/3/langref/MX/controls/ComboBox.html#prompt

  http://blog.flexexamples.com/2008/06/01/setting-a-prompt-on-a-ComboBox-control-in-Flex/

• The selected text combo box.

  Hey people,

  I have this strange thing that happens with a drop-down list box. I use a loop to fill a table. The table is the data provider for a combo box. Everything works well except the first vaule of the table does not appear in the combo box as long as the selected value. I tried to adjust the index selected-1, 0, 1, but he never displays as soon as the page loads.

  <? XML version = "1.0" encoding = "utf-8"? >
  " < = xmlns:mx mx:Application ' http://www.Adobe.com/2006/MXML layout "'absolute' = initialize ="buildcombo (); » >
  
  < mx:Script >
  <! [CDATA]
  [Bindable] public var MyOptions:Array = new Array();
  
  private function buildcombo (): void
  {
  
  MyOptions.push ({}
  label: "- SELECT -", data: 0
  });
  
  for (var i: int = 1; i < 10; i ++)
  {
  MyOptions.push ({}
  label: 'OPTION' + i, data: I.ToString
  });
  }
  
  }
  
  private void reset (): void
  {
  MyOptions = new Array();
  buildcombo();
  }
  
  private void ShowValue (): void
  {
  trace (MyCombo.value);
  }
  
  []] >
  < / mx:Script >
  < mx:ComboBox id = "MyCombo" x = "325" y = "145" dataProvider = "{MyOptions}" change = "ShowValue (); "/ >
  < mx:Button = "362" x = "224" label = "Reset" click = "reset (); "/ >
  < / mx:Application >

• Combo Box display problem

  I have a combo box component that is no scripted, labels and data are already defined in the settings. It's in a SWF loaded from a parent swf file.
  
  
  I tried the _lockroot = true, but does not work.

  put a combobox in the library of the main swf file. It doesn't have to be on stage.

• List box data selected

  I have a combo box list called class_cb, I am using the drop-down list box in a mathematical formula.
  I try to set that if data from combo box selected active = 1 then a text box = account number, if data = 2 then...
  I can get flash to acknowledge change can't get instruction
  "If some data box combo = zone 1 then text = 5" to work, the default values of the first value text box and changing the
  drop-down list box item and press on calculate does not change the value of the text box.
  
  Any help would be appreciated, thanks
  
  //************************************************
  DROP-DOWN LIST BOX
  //************************************************
  Add items to the list.
  class_cb. AddItem ({data: 1, label: "Normal"});
  class_cb. AddItem ({data: 2, label: "Free"});
  class_cb. AddItem ({data: 3, label: "Close & interference"});
  
  Update on the change listener object
  //
  Create a listener object.
  var cbListener:Object = new Object();
  Assign the function of listener object.
  cbListener.change = {function (event_obj:Object)}
  trace ("value is replaced by:" + event_obj.target.selectedItem.data);
  };
  Add the listener.
  class_cb.addEventListener ("change", cbListener);
  
  //************************************************
  CALCULATE
  //************************************************
  shaft_ta. Text = "null";
  
  Calculate_btn release
  Mathematical functions
  calculate_btn.onRelease = function() {}
  If the drop-down list box data = no. then change the label
  If (class_cb.selectedItem.data = 1) {}
  shaft_ta. Text = "6";
  } else {}
  If (class_cb.target.selectedItem.data = 2) {}
  shaft_ta. Text = "7";
  } else {}
  If (class_cb.selectedItem.data = 3) {}
  shaft_ta. Text = "9";
  }
  }
  }
  }

  Thought that he, just modified the trace command to change the text box.

• Combo box and stored Variables

  Hi all
  
  I am currently working on an interactive flash application for an open company day celebration for children and adults. The app is nearly complete but I even if I need an arrow to the left in case the user change their mind on some selections. At the beginning of the application, the user is prompted for their title with a combo box of actionscripted, as well as their first and last name values.
  
  I have problems with when the steps of the user to that image from the drop-down list box does not show the value that has been shopping in title_cb. I had the values of fname and family name in the correct text entry areas, it's just the drop-down list box. I guess its the code that is bad, but don't know what else to try.
  
  I hope that someone will be able to help.
  

  The selectedItem is an object that contains the label and data properties. What you
  can do to bring the handset to a variable is iterate over each item, verification
  It's the label against your variable - if you find a match, you set the
  selectedIndex of the comboBox control. Here's a function I user:

  function setCombo (comboRef, searchLabel:String) {}
  var l = comboRef.length;
  for (var i = 0; i)< l;="" i++)="">
  If (comboRef.getItemAt (i) .label == searchLabel) {}
  comboRef.selectedIndex = i;
  break;
  }
  }
  }

  to use, you would just go: setCombo (title_cb, citlecb);

  HTH

  --
  Dave-
  Developer leader
  http://www.blurredistinction.com
  Adobe Community Expert
  http://www.Adobe.com/communities/experts/

• About the data binding object

  I've set up a Repeater to display XML data. A single field, called rsvpStatus, is a Boolean value, returning as Y or N. I'd rather see something like YES or no. so I thought I could put in place the following text box:
  
  < mx:Text text="{Constants.yesNoTranslator[data.rsvpStatus]}"/ >
  
  and also to set up an associative array reflecting O/N YES/no such as:
  
  [Bindable]
  public static var yesNoTranslator:Object = {N: 'No', Y: 'Yes'};
  
  I'm being warned by Flex Builder that:
  "Data binding will not be able to detect changes when using square brackets operator. For array, use ArrayCollection.getItemAt (). »
  
  Despite this warning, it seems to work.
  
  My question is:
  I've set up with this warning and assume it is useless, or is there a good reason to change the structure of my code?
  
  See you soon
  Craig

  Thanks good for this Sreenivas I'm much clearer about all this now.
  all this got me thinking - it would make sense to create a new class, say "ObjectCollection' ObjectProxy extension with a"getItemAt"method to facilitate the fixation on objects in situations such as these:
  (my apologies but no button code to join for some strange reason)

  
  http://www.Adobe.com/2006/mxml">
  
  
  [Bindable]
  public var yesNoTranslator:ObjectCollection = new ObjectCollection({Y:"Yes",N:"No"});)
  [Bindable]
  public var rsvpStatus:String = 'Y ';
  ]]>
  
  

  package
  {
  Import mx.utils.ObjectProxy;

  SerializableAttribute public class ObjectCollection extends ObjectProxy
  {
  public void ObjectCollection (point: Object = null, uid:String = null, proxyDepth:int = - 1).
  {
  Super (item, uid, proxyDepth);
  }
  [Bindable (= "propertyChange" event)]
  public void getItemAt(index:String):Object {}
  Return (this [index]);
  }
  }
  }

• Add items to the combo box when running

  In my program, I want to add int '34' "43", "17"... and let the user choose one of them to the drop-down list box. How can I add items to the combo box when running. Create a property node 'String [] '? I try that, but its screen is "3443". I want to display as "34".

  43

  17

  See attached extract

  

• Channels not defined in Combo Box Bug?

  I found a problem with the drop-down list box control:

  1. create a drop-down list box and deselect 'allow Undefined Strings.

  2. run the VI

  3. Select a list box item

  4. press on the BACKSPACE key to remove a few letters of the item

  5. click on on the front panel

  The combo box is filled with a string not set!

  Disabling the BACKSPACE key is not a valid work-around because the user may need this while typing the value.  Expected behavior of the control would be to restore the previous value.  Any comments?

  Yes.

  Take a look at the bug report in this thread.

  http://forums.NI.com/NI/board/message?board.ID=170&thread.ID=379475