How to declare and initialize a STRING ARRAY (assign strings to array elements)

How to declare and initialize a STRING ARRAY (assign desired strings to elements of an array, for example "abc", "def", "ghi", "jkl", etc.) in LabVIEW? I saw a "string array" block in help, but could not find it in the function palette. Does a spreadsheet string have to be in a file (or can it be in a string constant block)? Thank you.

Hi,
you can do it in several ways:
1. Direct way: Create string array control on front panel and type strings in its elements
2. Programmatically 1: Create string array indicator (or local variable of control), right click on it in block diagram, select "Create constant" from drop down menu. The array constant will appear. Now type values in this constant's strings
3. Programmatically 1: Use "Build array", "Replace array subset", "Insert into array" or "Initialize array" functions from "Functions->Array" palette.
And of course you can combine all of these methods.
Good luck.
Oleg Chutko.

Similar Messages

Declare and initialize a varray of collection Object and pass it as OUT Par

Hi ,
How to declare and initialize a varray of collection Object and pass it as OUT Parameter to a procedure.
Following is the Object and VARRAY Type 's I have created and trying to pass the EmployeeList varray type variable as an OUT parameter to my stored procedure, but it is not working. I tried different possibilities of declaring and initializing the varray type variable but it did not work. Any help would be appreciated.
CREATE TYPE Employee IS Object
          employeeId     Number,
          employeeName VARCHAR2(31),
          employeeType     VARCHAR2(20),
CREATE TYPE EmployeeList IS VARRAY(100) OF Employee;
/* Procedure execution block */
declare
employees EmployeeList;
begin
EXECUTE displayEmployeeDetails(100, employees);
end;
Thanks in advance,
Raghu.

but it is not workingWhat's the definition of not working?
Error messages are always helpful.
SQL> CREATE OR REPLACE TYPE Employee IS Object
2 (
3 employeeId Number,
4 employeeName VARCHAR2(31),
5 employeeType VARCHAR2(30)
6 );
7 /
Type created.
SQL>
SQL> CREATE OR REPLACE TYPE EmployeeList IS VARRAY(100) OF Employee;
2 /
Type created.
SQL> CREATE OR REPLACE PROCEDURE getEmployeeDetails (
2    o_employees OUT employeelist
3 )
4 AS
5 BEGIN
6   o_employees := employeelist();
7   o_employees.EXTEND;
8   o_employees(1) := employee(1,'Penry','Mild Mannered Janitor');
9 END;
10 /
Procedure created.
SQL> set serveroutput on
SQL> declare
2   employees employeelist;
3 begin
4   getemployeedetails(employees);
5   for i in 1 .. employees.count
6   loop
7    dbms_output.put_line(employees(i).employeeid||' '||
8                         employees(i).employeename||' '||
9                         employees(i).employeetype);
10   end loop;
11 end;
12 /
1 Penry Mild Mannered Janitor
PL/SQL procedure successfully completed.
SQL>

How to read and write a string into a txt.file

Hi, I am now using BEA Workshop for Weblogic Platform version10. I am using J2EE is my programming language. The problem I encounter is as the above title; how to read and write a string into a txt.file with a specific root directory? Do you have any sample codes to reference?
I hope someone can answer my question as soon as possible
Thank you very much.

Accessing the file system directly from a web app is a bad idea for several reasons. See http://weblogs.java.net/blog/simongbrown/archive/2003/10/file_access_in.html for a great discussion of the topic.
On Weblogic there seems to be two ways to access files. First, use a File T3 connector from the console. Second, use java.net.URL with the file: protocol. The T3File object has been deprecated and suggests:
Deprecated in WebLogic Server 6.1. Use java.net.URL.openConnection() instead.
Edited by: m0smith on Mar 12, 2008 5:18 PM

How to declare and work with select-option in screen painter?

hello there,
can anybody plz suggest me ,how to declare and work with select-option in screen painter?
neon

Hi Blue,
Please check these threads which will help you a lot..
module pool programming " to add selection-option on screen"
Re: Select option in Dialog program screen
Re: SELECT-OPTIONS in Screen
Good luck
Narin

How to find and replace any string between " "

Hi everyone,
Here my sample
String szTest;
szTest = "Yellow banana";
szTest = "Blue monkey";
szTest = "Red mango";
szTest is only needed when it's in testing progress. Now I want to put all of that in the /*comment*/ so the released program won't run those code any more (but still keep szTest so I can use it for future develop testing).
So Here what I want after using the Find and Replace Box:
//String szTest; //Manual
/*szTest = "Yellow banana";*/ //use find and replace
/*szTest = "Blue monkey";*/ //use find and replace
/*szTest = "Red mango";*/ //use find and replace
I think I can do this with Regular expressions or Wildcards. But I don't know how to find and replace any string between " and ".
Find: szTest = " ??Any string?? ";
Replace with: /*szTest = " ??Any string?? ";*/
Thanks for reading.

Hi Nathan.j.Smith,
Based on your issue, I suggest you can try the Joel's suggestion check your issue again. In addition, I find a MSDN document about how to use the Regex.Replace Method to match a regular expression pattern with a specified replacement string,
maybe you will get some useful message.
https://msdn.microsoft.com/en-us/library/xwewhkd1(v=vs.110).aspx
If the above suggestion still could not provide you, could you please tell me what language you use to create the program for finding and replace any string using regular expression so that we will find the correct programming develop forum to support this
issue?
Best Regards,
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

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

Combined declaration and initialization of array

Hello All,
What is the difference between the below mentioned arrat initializations?
int myArray[]=new int[] {1,2,3,4,5};
int myArray[]={1,2,3,4,5};
but both of them behaves in same way.
Regards
Sojan

The first creates an anonymous array and copies its reference in the variable myArray. The second implicitly creates and initializes an array (there isn't really a perceptible difference). However, the second can only be used in declarations. Consider the following:
int[] iArray = {1, 2, 3};
iArray = new int[] {9, 8, 7}; // works
iArray = {9, 8, 7}; // doesn't work !!!Hope this helps,
Pierre

How to declare and read a variable more than 255 characters

Hi Friends,
Actually i want to declare a variable which can accepts more than 255 characters as input and the same manner i want to read the data and pass the data as a output length more than 255 characters.
So how can i delcare the data as a field in the table.
Thanks & Regards
Gupta

Hi Raj,
Thanks for your reply, please privide the further clarification actually by declaring a variable as string i can able to pass 1023 characters form selection screen like that i passed the data to the three varibles and i concatenated those three varibles in to single varible now is there any way to pass the result into the smartform.
Please give me some techincal stuff on this
Regards
Gupta

How to create and destroy dynamically an array

How to create an array of container dynamically and destroy it. I have an array of container which is to be sorted by comparision, but in sorting out the elements i want to delete some of the elements based on comparision.I run a for loop based on the number of elements in the array to be sorted. So what i do is take the elements into another array which i want to create it dynamically and reassign the new array back to the old one after sorting and delete it.

Hi kpraveen,
Maybe this thread helps,
http://forums.ni.com/ni/board/message?board.id=330&message.id=18421&query.id=288653#M18421
Greetings
Juergen
=s=i=g=n=a=t=u=r=e= Click on the Kudos button (Gold Star) and see what happens =s=i=g=n=a=t=u=r=e=
=s=i=g=n=a=t=u=r=e= Click on the Star and see what happens :-) =s=i=g=n=a=t=u=r=e=

[Forum FAQ] How to find and replace text strings in the shapes in Excel using Windows PowerShell

Windows PowerShell is a powerful command tool and we can use it for management and operations. In this article we introduce the detailed steps to use Windows PowerShell to find and replace test string in the
shapes in Excel Object.
Since the Excel.Application
is available for representing the entire Microsoft Excel application, we can invoke the relevant Properties and Methods to help us to
interact with Excel document.
The figure below is an excel file:
Figure 1.
You can use the PowerShell script below to list the text in the shapes and replace the text string to “text”:
$text = “text1”,”text2”,”text3”,”text3”
$Excel
= New-Object -ComObject Excel.Application
$Excel.visible = $true
$Workbook
= $Excel.workbooks.open("d:\shape.xlsx")
#Open the excel file
$Worksheet
= $Workbook.Worksheets.Item("shapes")
#Open the worksheet named "shapes"
$shape = $Worksheet.Shapes
# Get all the shapes
$i=0
# This number is used to replace the text in sequence as the variable “$text”
Foreach ($sh in $shape){
$sh.TextFrame.Characters().text
# Get the textbox in the shape
$sh.TextFrame.Characters().text =
$text[$i++]
#Change the value of the textbox in the shape one by one
$WorkBook.Save()
#Save workbook in excel
$WorkBook.Close()
#Close workbook in excel
[void]$excel.quit()
#Quit Excel
Before invoking the methods and properties, we can use the cmdlet “Get-Member” to list the available methods.
Besides, we can also find the documents about these methods and properties in MSDN:
Workbook.Worksheets Property (Excel):
http://msdn.microsoft.com/en-us/library/office/ff835542(v=office.15).aspx
Worksheet.Shapes Property:
http://msdn.microsoft.com/en-us/library/office/ff821817(v=office.15).aspx
Shape.TextFrame Property:
http://msdn.microsoft.com/en-us/library/office/ff839162(v=office.15).aspx
TextFrame.Characters Method (Excel):
http://msdn.microsoft.com/en-us/library/office/ff195027(v=office.15).aspx
Characters.Text Property (Excel):
http://msdn.microsoft.com/en-us/library/office/ff838596(v=office.15).aspx
After running the script above, we can see the changes in the figure below:
Figure 2.
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

Thank you for the information, but does this thread really need to be stuck to the top of the forum?
If there must be a sticky, I'd rather see a link to a page on the wiki that has links to all of these ForumFAQ posts.
EDIT: I see this is no longer stuck to the top of the forum, thank you.
Don't retire TechNet! -
(Don't give up yet - 13,085+ strong and growing)

Getting row and column of an array element

Hi,
I have an array of 24 rows and 24 column giving me a total of 576 elements. How do I get the row and column of a particular element in an array in LabView. E.g. If I have to write to element 127 how do I get the column and row in which element 127 is located.
Regards,
Harshil
Solved!
Go to Solution.

Hi Harshil,
maybe you only need to find the correct "address" of the element in your 2D array?
Use something like this:
Maybe you have to switch Row&Column output according to your numbering scheme...
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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

JTable: how to "synchronize" (and update) with an array ?

Hello.
I am new to the Swing and I have been googling to find a solution for my problem, but I've spent too much time and found nothing. Please give me some advice.
So: I have an array of data and a JTable. The array is constantly being changed and I would like to update the JTable with every change in the array.
Thank you so much for yr help.

So here I am with an as-simple-as-possible example of my problem.
Just run it, everything is in this class.
And you'll have a table with 10 rows with 0 in every row. Every 2 seconds one line should change, but it doesn't, only if you resize the frame, or click in a cell the numbers in the cells will change.
Q: how to change it without resizing or clicking into the table ?
package MainFrame;
import java.awt.BorderLayout;
import javax.swing.JTable;
import javax.swing.WindowConstants;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;
class NewJFrame extends javax.swing.JFrame {
     private static JTable jTable;
     public static void main(String[] args) throws Exception {
          SwingUtilities.invokeAndWait(new Runnable() {
               public void run() {
                    NewJFrame inst = new NewJFrame();
                    inst.setLocationRelativeTo(null);
                    inst.setVisible(true);
          Generator gen = new Generator(jTable);
     public NewJFrame() {
          super();
          initGUI();
     private void initGUI() {
          try {
               setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
               jTable = new JTable(new MyTableModel());
               getContentPane().add(jTable, BorderLayout.CENTER);
               pack();
               this.setSize(399, 263);
          } catch (Exception e) {
               e.printStackTrace();
class Generator extends Thread {
     private int[] array = new int[10];
     JTable table;
     public Generator(JTable table) {
          array = new int[10];
          this.table = table;
          this.start();
     public void run() {
          super.run();
          for (int i = 0; i < 10; i++) {
               array[i] = i + 200;
               table.getModel().setValueAt(i, i, 0);
               try {
                    Thread.sleep(2000);
               } catch (InterruptedException e) {
class MyTableModel extends AbstractTableModel {
     private int[] array = new int[10];
     public int getColumnCount() {
          return 1;
     public int getRowCount() {
          return array.length;
     public Object getValueAt(int arg0, int arg1) {
          return array[arg0];
     public void setValueAt(Object value, int rowIndex, int columnIndex) {
          array[rowIndex] = ((Integer) value).intValue();
}Thank you so so much my man.

How to load and display a byte array (jpeg) image file dynamically in Flex?

My web service client (servlet) received a binary jpeg data from an Image Server. The Flex application invokes the
servlet via HttpService and receives the binary jpeg data as byte array. How could it be displayed dynamically
without writing the byte array to a jpeg file? Please help (some sample code is very much appreciated).

JPEGEncoder is only useful for converting BitmapData to ByteArray, not the other way around.
By the way JPEGEncoder and PNGEncoder are part of the Flex SDK now, so no need to use AS3Lib (alltough it's a good library to have around).
To display/use a ByteArray as image, use a Loader instance with the loadBytes method.
    Loader.loadBytes(bytes:ByteArray, context:LoaderContext = null);
Listen for the complete event on the Loader.contentLoaderInfo and get the BitmapData in the event handler.
private function loadJpeg():void {
    var loader:Loader = new Loader();
    loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaderCompleteHandler);
    //jpgBA is the ByteArray loaded from webservice
    loader.loadBytes(jpgBA);
private function loaderCompleteHandler(evt:Event):void {
    var t:LoaderInfo = evt.currentTarget as LoaderInfo;
    // display the jpeg in an Image component
    img.source = t.content;
<mx:Image id="img" scaleContent="false" />

How to search and replace a string in Excel Shape (textbox) using Powershell.

I have been asked to write a PS script to search/replace a string when found in Excel Shapes when they are textboxes. I have seen lots of simplistic PS scripts and even I can do a "foreach" loop through all the Shapes on a Sheet and display the
Name of each Shape. But I have not found a property or method to expose the actual text in a textbox let alone change it.
I have seen vba script that does this as:
Set xWs = Application.ActiveWorkbook.Worksheets(I)
For Each shp In xWs.Shapes
xValue = shp.TextFrame.Characters.Text
shp.TextFrame.Characters.Text = VBA.Replace(xValue, xFindStr, xReplace, 1)
Next
In Powershell, shp.TextFrame.Characters.Text is ignored and returns nothing. It would be nice to know if this is possible in PS and if so, know how to do it and/or get an example to work from. I would have thought that
PS and VB would use the same Excel object model but apparently they do not.
I am using Excel 14.0 and PS 3.
Any suggestions would be appreciated,
Michael

This didn't work for me. I have the shape object and it shows the textframe property:
PS C:\> $shape | gm
TypeName: System.__ComObject#{00024439-0000-0000-c000-000000000046}
Name MemberType Definition
Apply Method void Apply ()
CanvasCropBottom Method void CanvasCropBottom (float)
SoftEdge Property SoftEdgeFormat SoftEdge () {get}
TextEffect Property TextEffectFormat TextEffect () {get}
TextFrame Property TextFrame TextFrame () {get}
TextFrame2 Property TextFrame2 TextFrame2 () {get}
ThreeD Property ThreeDFormat ThreeD () {get}
But trying to access it gives an error:
PS C:\> $shape.textframe | gm
gm : You must specify an object for the Get-Member cmdlet.
At line:1 char:20
+ $shape.textframe | gm
+ ~~
+ CategoryInfo : CloseError: (:) [Get-Member], InvalidOperationException
+ FullyQualifiedErrorId : NoObjectInGetMember,Microsoft.PowerShell.Commands.GetMemberCommand
PS C:\> $shape.TextFrame.Characters().text="hello"
You cannot call a method on a null-valued expression.
At line:1 char:1
+ $shape.TextFrame.Characters().text="hello"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
I hope this post has helped!

How to declare and initialize a STRING ARRAY (assign strings to array elements)

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