Binding to Array element using BindingUtils

I have an arraycollection that would have (say) 5 elements in it. Then I have a component with a property that would need to bind with one of the elements in the array. Which element does it gets bound to, is determined at runtime by a function. How would I do that in Actionscript? I am stuck using the BindingUtils.....
e.g. I need to bind the dataProvider property of my component to arr[0] for one instance and to arr[4] for another instance.

You may not be able to directly set the indexed value.
Try some thing like this.
Add a property that returns the indexed value.
Ex. if you ArrayList objets are of type "String"
int index = 5;
public String getMyValue(){
return w.get[index]
Now your value binding would look something like
#{SessionBean1.myValue}
BTW, if you want to access different index, create another method
public void setIndex(int index){
this.index = index;
- Winston
http://blogs.sun.com/roller/page/winston?catname=Creator

Similar Messages

How to change value of array element using property node

hello all : )
im using an array of combo-box. the size of array is not fixed.
i want to use the strings[ ] property of combo-box to enter selection texts but since i have placed it inside the array im unable to use this property.
i used 'arrayelem' reference property and connected property node to it but didnt got strings [ ] in the selection.
so is there any way i can use the strings [ ] property
Solved!
Go to Solution.

the picture what I posted is a snippet. It is a png file which also contains a vi:
http://www.ni.com/tutorial/9330/en/
I have found this post. I am just reading it:
http://forums.ni.com/t5/LabVIEW/combobox-in-array-why-does-it-work-this-way/m-p/2146916/highlight/tr...
It might help...
hmm, it is more complicated as I thought )
edit: just to be CLEAR: so you want to create a new selection LIST for each of the array elements (comboboxes)) OR you just want to set all the comboboxes to a particular value which is ALREADY in the combobox list??

Access nested array element using this.name - is it possible?

Hi
I've got a nested array containing a series of 2 element arrays containing an object name, and text related to that object.
I've set it up like this:
public var names:Array = [["instance name 1", "text for first object"],["instance name 2", "text for second object"], ...]];
What I'm trying to do is to have the text related to the object appear in a text box when the object is moved.
This is all set up within a class containing code for the drag and drop functions.
If I set the text box to show a specific element, such as:
MovieClip(parent).text_box.text= names[2][1];
it works fine. But I can't get it to create the value for the first bracket from the this.name attribute.
I had it working for 2 arrays - one with the name and another with the text where the code was;
MovieClip(parent).text_box.text= texts[names.indexOf(this.name)]; (arrays named 'names' and 'texts', text box named 'text_box')
I'm hoping there's something similar that I can do for the nested array, but everything I try gives me the #1010 error - term undefined.
Is there an easy way to sort this out - or am I better sticking with the 2 array version?
(BTW this is my first go at using arrays)
Thanks

Why not use an Object for this, like:
var oTexts:Object = {
                              "clipname1":"text for clip 1",
                              "clipname2":"text for clip 2",
                              "clipname3":"text for clip 3",
and then jsut use sometihing like this
var txt:String = MovieClip(parent).oTexts[this.name];
etc. ..

Binding to array elements via currentRow

I know, I know, this is not really a JSC question but a JSP one, but I will ask anyway!
I have a datatable bound to tableLine[]. One property of tableLine is myArray - which is, surprise suprise, an array. I would like myArray[0] to show up in the first datatable column, myArray[1] in the second, etc. I tried #{currentRow['myArray[0]']}, but it does not work. The alternative would be to have a rather cumbersome mechanism to convert myArray[xx] into myArrayxx properties, but that really does not look good.
Any ideas?
Thanks,
Luca

I was hoping someone else knew - I have no clear answer, but can offer a pointer to a value-binding article you might be able to use:
http://java.sun.com/developer/EJTechTips/2004/tt0923.html#1
and chp 18 on Binding Component Values :
http://java.sun.com/j2ee/1.4/docs/tutorial/doc/index.html
(see diagram 18-8??)
Sorry I don't have more... but hopefully the trick is in there...
v

Extract array elements using plsql

I have an XMLTYPE variable containing the following SOAP envelope:
<?xml version="1.0" encoding="US-ASCII"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/1999/XMLSchema" xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance">
<soapenv:Body>
<ns1:cleanseAddressResponse soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="urn:dbCleanseSoapBinding">
<ns1:cleanseAddressReturn xsi:type="soapenc:Array" soapenc:arrayType="ns2:string[5]" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns2="http://www.w3.org/2001/XMLSchema">
<item>1369 S 325 E STE 2323</item>
<item/>
<item>BOUNTIFUL</item>
<item>UT</item>
<item>84010</item>
</ns1:cleanseAddressReturn>
</ns1:cleanseAddressResponse>
</soapenv:Body>
</soapenv:Envelope>
How can I extract individual values of ITEM using PLSQL? I can't seem to be able to extract anything out of this without raising ORA-30625 "method dispatch on NULL SELF argument is disallowed"

You can create XMLSEQUENCE() from the extract() function and they get the value out.
Or you can use the //item[1]/text() //item[2]/text().
Does this make sense to you?

Howto dynamicly bind XML element to a TextInput using BindingUtils?

The question is: Howto dynamicly bind XML element to a
TextInput component using BindingUtils?
Now I use following codes:

<mx:TextInput id="txtDemo"/>
<mx:Button label="Test" click="test()"/>
My really idea is when bindable xml property is changed, then
the textinput will be updated as hoped. However, no update happens
to me when I click the Test button.
But, if I make codes like that:
<mx: TextInput id="txtDemo" text="{xml.label}"/>
the text will updated when xml changs.
So, what happened, I indeed need the dynamicly bind to the
textinput compont.
Help me. thanks.

You could use an ObjectProxy since all subproperties will
then be bindable:
private var _xml:XML =
<item><label>list1</label></item>;
private var _opXML:ObjectProxy = new ObjectProxy(_xml);
then in your init() function you declare _opXML as the host
object with the bindable property "label"...
// initialize code for application's initialize event
public function init(): void {
BindingUtils.bindProperty(txtDemo, "text", _opXML, "label");
//click event
private function test(): void {
_opXML.label = "something";
You'll notice that if you check your original _xml.label
property with ChangeWatcher.canWatch(), it returns false. But if
you create a dedicated object with a property that can be declared
as bindable, canWatch() returns true. You'd probably be best off to
write a lightweight class that can act as your model if you want to
work with dynamic XML binding using Actionscript. This will allow
you to use a bindable getter and setter that will give you the
dynamic functionality you're looking for.
Hope that helps.

How to use XSLT for mapping feild names one by one to array element

I have a XSLT case to map all the attributes feild name(not value) which has no child to the target, which is array loop.
I give an sample below.
source:
<Items xmlns="http://www.example.org/sample">
<SourceSystem>SourceSystem2573</SourceSystem>
<TimeStamp>2010-01-17T20:54:08.234</TimeStamp>
<Item>
<ID>2574</ID>
<Type>2575</Type>
<Name>2576</Name>
</Item>
</Items>
source XSD like:
     <element name="Items" type="tns:ItemsType"></element>
     <complexType name="ItemsType">
          <sequence>
               <element name="SourceSystem" type="string" maxOccurs="1"
                    minOccurs="1">
               </element>
               <element name="TimeStamp" type="dateTime" maxOccurs="1"
                    minOccurs="1">
               </element>
               <element name="Item" type="tns:ItemType"
                    maxOccurs="unbounded" minOccurs="1">
               </element>
</sequence>
     </complexType>
<complexType name="ItemType">
          <sequence>
               <element name="ID" type="string" maxOccurs="1"
                    minOccurs="1">
               </element>
               <element name="Type" type="string" maxOccurs="1"
                    minOccurs="1">
               </element>
<element name="Name" type="string" maxOccurs="1"
                    minOccurs="1">
               </element>
</sequence>
     </complexType>
target need to be like:
<ns1:AttributesCollection>
<ns1:Attributes>
<ns1:fieldname>SourceSystem</ns1:fieldname>
</ns1:Attributes>
<ns1:Attributes>
<ns1:fieldname>TimeStamp</ns1:fieldname>
</ns1:Attributes>
<ns1:Attributes>
<ns1:fieldname>ID</ns1:fieldname>
</ns1:Attributes>
<ns1:Attributes>
<ns1:fieldname>Type</ns1:fieldname>
</ns1:Attributes>
<ns1:Attributes>
<ns1:fieldname>Name</ns1:fieldname>
</ns1:Attributes>
</ns1:AttributesCollection>
target XSD:
<xs:element name="AttributesCollection" type="AttributesCollection"/>
<xs:complexType name="AttributesCollection">
<xs:sequence>
<xs:element name="Attributes" type="Attributes" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="Attributes">
<xs:sequence>
<xs:element name="fieldname" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="100"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
</xs:sequence>
</xs:complexType>
I know we can use local-name() to get the tag/field name,
but I have not idea how to get these leaf field names one by one and then mapping to every array elements.
I tried whole day but no successful
Does anyone have some idea?
Thanks very much!
Keith
Edited by: user1065212 on 17-Jan-2010 22:50
Edited by: user1065212 on 17-Jan-2010 22:53
Edited by: user1065212 on 17-Jan-2010 22:59

can you paste source xsd and the correct xml output, the current one isn't really valid
<ID>2574</TotalNumOfItems>

How to set the value of an array element (not the complete array) by using a reference?

My situation is that I have an array of clusters on the front panel. Each element is used for a particular test setup, so if the array size is three, it means we have three identical test setups that can be used. The cluster contains two string controls and a button: 'device ID' string, 'start' button and 'status' string.
In order to keep the diagrams simple, I would like to use a reference to the array as input into a subvi. This subvi will then modify a particular element in the array (i.e. set the 'status' string).
The first problem I encounter is that I can not select an array element to write to by using the reference. I have tried setting the 'Selection s
tart[]' and 'Selection size[]' properties and then querying the 'Array element' to get the proper element.
If I do this, the VI always seems to write to the element which the user has selected (i.e. the element that contains the cursor) instead of the one I am trying to select. I also have not found any other possible use for the 'Selection' properties, so I wonder if I am doing something wrong.
Of course I can use the 'value' property to get all elements, and then use the replace array element with an index value, but this defeats the purpose of leaving all other elements untouched.
I had hoped to use this method specifically to avoid overwriting other array elements (such as happens with the replace array element) because the user might be modifying the second array element while I want to modify the first.
My current solution is to split the array into two arrays: one control and one indicator (I guess that's really how it should be done ;-) but I'd still like to know ho
w to change a single element in an array without affecting the others by using a reference in case I can use it elsewhere.

> My situation is that I have an array of clusters on the front panel.
> Each element is used for a particular test setup, so if the array size
> is three, it means we have three identical test setups that can be
> used. The cluster contains two string controls and a button: 'device
> ID' string, 'start' button and 'status' string.
>
> In order to keep the diagrams simple, I would like to use a reference
> to the array as input into a subvi. This subvi will then modify a
> particular element in the array (i.e. set the 'status' string).
>
It isn't possible to get a reference to a particular element within an
array. There is only one reference to the one control that represents
all elements in the array.
While it may seem better to use references to update
an element within
an array, it shouldn't really be necessary, and it can also lead to
race conditions. If you write to an element that has the
possibility of the user changing, whether you write with a local, a
reference, or any other means, there is a race condition between the
diagram and the user. LV will help with this to a certain extent,
especially for controls that take awhile to edit like ones that use
the keyboard. In these cases, if the user has already started entering
text, it will not be overwritten by the new value unless the key focus
is taken away from the control first. It is similar when moving a slider
or other value changes using the mouse. LV will write to the other values,
but will not rip the slider out of the user's hand.
To completely avoid race conditions, you can split the array into user
fields and indicators that are located underneath them. Or, if some
controls act as both, you can do like Excel. You don't directly type
into the cell. You choose w
hich cell to edit, but you modify another
location. When the edit is completed, it is incorporated into the
display so that it is never lost.
Greg McKaskle

How to change the color of Numeric array elements (seperately) programmatically using property node??

For example, i have 3 numeric controls, controlling 3 numeric array elements (Numeric control is connected directly to indicator). Then if i change value in numeric control 1, then the array element No.1 of numeric array should turn red when value exceeds 5. Similarly when i change num control 2 then element 2 of array should turns red when value in num control 1 exceeds 10. Similarly for 3rd element. In other words, i want to control the property of array elements individually through seperate numeric control.
I have done it for single numeric indicator.i.e. when i change numeric control's values then a single numeric indicator changes values and color (Numeric text BG property) but with array, the color of whole array changes but i want to change color of singles element of array.
Please help thanks.
Solved!
Go to Solution.

...or replace the numerics with clusters that have a numeric and a color box. make the background of the nmeric transparent and slide the color box behind the numeric. Use the color box to control the background color.
Other alternatives would use a cluster instead of the array or if your req's are really weird "roll-your-own" with a Picture control.
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

How to bind ADF table with a collection of elements using backing bean.

Hi Experts,
My JDev version is 11.1.1.6.0.
I need to bind ADF table with a collection of elements using backing bean.
My backing bean consists of 6 lists of strings, where each list represents a column of table. How can I populate the entries of table with these lists.
Thanks
Gopi

Hi,
Create an object representing the row (setter/getter). Then have a list of these objects. Drag and drop the table and point its value to the list and the type to the row object
Frank

Using a For Loop Index for Array Element Number?

Hi. Thanks in advance for the help. I can't seem to find what I want to do here using the search function... probably because I don't know how to frame the question appropriately. Ignore the title to this post cause it's probably wrong vocabulary for what I want to do.
Here's the situation:
I have a 2D array where the first column is the X data and each subsequent column is Y data (call it Y1...Yn). The n-value varies from run to run (some runs have 4 columns of data, some have 20), but that is easily gathered when reading the data file. I need to perform a number of operations on each set of data, the least of which is smoothing the data and graphing it, so I'm limiting my discussion to these 2 operations.
What I want is a for loop structure where the indexing of the loop tracks the Y1...Yn columns, grabs each column for the iteration, performs the relevant analysis, and spits out the result, but in a stackable manner. Thus the title; I want to use the for loop's index to mark the array element for building a new array.
See the image attached. A 2D array of 9 columns (X, Y1...Y8) is analyzed such that each data set, (X, Y1), (X, Y2)...(X, Y8) is bundled, graphed, run through a B-spline Fit, of which is also graphed. I need to replace this with something that looks like the for loop structure shown.
I just don't know how to get those two data bundles [(X, Yi) and it's smoothed pair] out of the for loop in a stacked set from every iteration of the for loop.
Again the title, I think I want to build a new array where i use the index of the for loop to control the entries of the new array. But I can't see how to do that.
Any help would be appreciated.
Attachments:
NeedForLoopForThis.PNG ‏30 KB

Hello H.R. Dunham, and welcome to the forum!
It seems that you may be looking for Auto-Indexing, a basic feature of loops in LabVIEW. You'll need to transpose your array before wiring it into the for loop, as elements are auto-indexed by row before column, but at that point you should be able to operate on each column and output an array of n cluster elements corresponding to your input columns. Auto-indexing tunnels look like brackets to indicate each element will be indexed automatically- this should be the default when wiring an array into a for loop or when wiring anything out of a for loop.
As for how to build your pairs, I suggest removing the X column and creating a "starter" cluster containing your X data and placeholder Y data before entering your "Y" processing loop. Use the bundle by name function in the for loop to insert your processed column data into the cluster and auto-index the cluster output. Flow would be something like this:
1) Gather data
2) Split X and Y using standard array operations
3) Create "template" cluster with shared X data
4) Pass template cluster and Y-column array into an auto-indexed for loop.
5) Insert processed Y data into cluster inside loop.
6) Auto-index cluster data out of loop.
This tutorial is probably also a good place to get started:
Getting Started with NI LabVIEW Module 3: Loops
http://www.ni.com/white-paper/7528/en/
Hope that helps!
Regards,
Tom L.

How can I set the caption text of picture controls inside an array or how can I choose which array element is assigned using the array elements caption text property.

I have 8 picture controls inside an array and I would like to set the caption text of these controls.
I have used the property node of the array and used the array elements property caption text to set the text.
The problem is however that I set the same text to all the picture controls inside the array.
My question is how to set caption text of specific elements (Picture control) that I have so far only been able to access using the array elements caption text property.

Some more help
1 You could use the caption of the array and place it in front of the selected picture and update that using property nodes.
2 Like Norbett said if you use a cluster of pictures then their caption can be updated individually.
Here is a an example that demonstrates the above
David
Attachments:
Modify the Captions Of Pictures.vi ‏83 KB

Trying to use .split with an array element

I have tried multiple ways to split an array element into its components that are separated with a space with this code:
public static void compareHand(String[] hand){
        for (int i = 0; i < hand.length; i++){
            System.out.println(i);
            System.out.println(hand);
String[] tokens = hand[i].split("\\s");
System.out.println(tokens.length);
for (int j = 0; j < tokens.length; j++){
System.out.println(tokens);
I keep getting strange output like the following:
King of Spades
3
[Ljava.lang.String;@10b62c9
[Ljava.lang.String;@10b62c9
[Ljava.lang.String;@10b62c9
where I am expecting:
King of Spades
3
King
of
Spades
Any ideas where I am going wrong?

public static void compareHand(String[] hand){
         for (int i = 0; i < hand.length; i++){
              System.out.println(i);
              System.out.println(hand);
String[] tokens = hand[i].split("\\s");
System.out.println(tokens.length);
for (int j = 0; j < tokens.length; j++){
System.out.println(tokens); // your error is on this line. Hint ... System.out.println(tokens[...]);

Binding an array of integers using OCI for WHERE IN clause

Is it possible to bind lists of integers using OCIBindByPos(), for use with a WHERE IN clause?
In our application, we very often have statements like this:
SELECT ...
WHERE col1 IN (3, 54, 65, 76, 112, 232, 343)where the number of integers in the list is variable.
These lists sometimes can become very large (several thousands of entries); Oracle ADDM then indicates that these statements are hard to parse and recommends to use bind variables instead.
Is is possible to change the statement into something like
SELECT ...
WHERE col1 IN (:1)and to bind the integer list using OCIBindByPos()?
Or is there an even better way to do this? (Please note: the integer list is not the result of a previous SELECT statement, i.e. we cannot use joins or subqueries here.)
Regards
- Frank

Turns out it's possible after all, albeit not quite written in the most obvious way.
See Re: Binding collection to right-hand-side of WHERE num_col in (:1) clause? for details.

How to binding an array in javaFx

Hello fellows,
im trying to bind an array in javaFx but is not possible...
i have a problem that, in my point of view, only can be solved with a bind array.
a create some components in the scene dinamicaly and in other component (a button) a have to get this componets in the button function to manipulate them
this components that is dinamicaly created sofer some updates and can be deleted too.
i create an array that i put this components and my button recived this array, coz the array is always null (the inicial status of the array)
becouse of this i need a bindig array...
how can i do that?
or, that is an other solution?
i can get all the components in the scene of only one type (my component created dinamicaly)?

Here is example of a simple painter app where array binding is used:
import javafx.stage.*;
import javafx.scene.*;
import javafx.scene.paint.*;
import javafx.scene.input.*;
import javafx.scene.shape.*;
var elements: PathElement[];
Stage {
    title: "Simple Painter"
    scene: Scene {
        content: Group{
            content: [
                Rectangle{
                    width: 400
                    height: 300
                    fill: Color.WHITE
                    onMousePressed: function( e: MouseEvent ):Void {
                            insert MoveTo {x : e.x, y : e.y } into elements;
                    onMouseDragged: function( e: MouseEvent ):Void {
                            insert LineTo {x : e.x, y : e.y } into elements;
                Path{
                    stroke: Color.BLUE
                    elements: bind elements
}

Binding to Array element using BindingUtils

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