Clearing a fileglobal array of strings
I have a fileglobal 2 dimensional array of strings. How does one clear it each time the sequence is called, use a for loop? It used to not be a problem but now it seems to have old data in it all the time.
thanx,
jvh
Solved!
Go to Solution.
I don't know if there's a native TS method to empty/reset a 2D array, but much of our code (going back to TS 1.0!) simply uses the "TestStand - Set Property Value (2D String Array).vi" and a sequence context ref to reset a FileGlobals.
It has worked for us for 10+years...
Now is the right time to use %^<%Y-%m-%dT%H:%M:%S%3uZ>T
If you don't hate time zones, you're not a real programmer.
"You are what you don't automate"
Inplaceness is synonymous with insidiousness
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String of letters to 1-D Array of strings for spreadsheet
What I would like to do is be able to take this string as it is the A's and B's that are being generated as the program runs,
I would like to take this string and get it into file in delimited tabs just as the numbers are. If there is a created 1-D array of
strings that works, but that is controlled on the front panel, I would like to create this from data that is comming in. In other words
I am stuck on how to create a 1-D array of Sting from the string value comming in. I want to do this so that I can get all the different
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attached file in the rows 5 an
d 7.
Thanks,
Brian
Attachments:
Array_of_strings_to_spreadsheet2.vi 28 KB
Turn_data1.xls 1 KBBrian
You need to convert your string to contain single tabs as separator. The problem is that your string is "dirty", i.e. it contains a variable amount of spaces to seperate the items. If you strictly had single space separators, you could just replace all spaces with tabs.
"Scan string for tokens" by default does not allow empty tokens, thus takes care of the multiple spaces.
The attached simplified code assumes a fixed number of items (12), if this is a variable, you need to use a while loop and sense the end of the input string. Let me know if this is clear.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
StringToArrayofstringsToSpreadsheetstring.vi 21 KB -
How do I pass an array of strings? (Help Me... Please!!! .Read Me....)
Dear All.
Help Me...
English is not very good. Google translator is used.
How do I pass an array of strings?
Please refer to the VB program
===========================================
Private Sub m_btn_Click()
Dim nReturn As Long
Dim sPpid As String
Dim sMdln As String
Dim sSoftRev As String
Dim nCount As Long
Dim saCCodes(2) As String
Dim naPCount(2) As Long
Dim saPNames(10) As String
sPpid = "PPID001"
sMdln = "Mdln"
sSoftRev = "Rev001"
nCount = 2
saCCodes(0) = "1"
naPCount(0) = 5
saPNames(0) = "Param001"
saPNames(1) = "Param002"
saPNames(2) = "Param003"
saPNames(3) = "Param004"
saPNames(4) = "Param005"
saCCodes(1) = "2"
naPCount(1) = 5
saPNames(5) = "Param006"
saPNames(6) = "Param007"
saPNames(7) = "Param008"
saPNames(8) = "Param009"
saPNames(9) = "Param010"
nReturn = m_XGem.GEMReqSend(sPpid, sMdln, sSoftRev, nCount, saCCodes(0), naPCount(0), saPNames(0))
If (nReturn = 0) Then
Call Me.AddMessage("[EQ ==> XGEM] GEMReqSend successfully")
Else
Call Me.AddMessage("[EQ ==> XGEM] Fail to GEMReqSend (" & nReturn & ")")
End If
End Sub
=================================================
nCount, naPCount enough saCCodes, saPNames value must be sent.
How to handle an array of strings in LabView is impatient.
I want to VB program implemented in LabView.Have you actually tried to right click on the according node parameter and select Create->Constant or Create-Control??
And I don't see any string array in the parameter list. That are all simple strings and the VB code in your first post clearly shows that the call to the function only indexes the first element of those arrays to be passed to the function, not the entire array.
If the function really reads arrays despite being declared as only taking strings then it is using some weirdo VB trickery and there will be no way to replicate that in LabVIEW.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions -
Hi. I'm reading a different chunk of data each time and therefore need to clear the byte array before I go to the next chunk. I've seen
other ways through a buffer but that is too complicated for me to understand. Can u please tell me if there is a simple method in the API to clear it?
Thank you!!well i thought it was, but i'm using the matcher class to read the data and storing it in a byte array of size 512 and it seems that when i convert it into a string, the previous data is still there if i read something less than 512
Edited by: angel32013 on Sep 16, 2008 1:08 PM -
Get numerical values from 2D array of string
Hello!
I start by saying that I have a base knowledge of LabView. I'm using LabView 2011. I'm doing some communications test via Can-Bus protocol. As you can see in pictures of the block diagram and of the front panel that I've attached I'm using "Transmit Receive same Port" LabView example. It works very good but I would need to insert the 8 data bytes that I receive from the server in 8 different numerical variables so that I could use them to make some operations. How can I get numerical values from the 2D array of string that I attached?
Every example that you can provide is important!
Thank you very much!
Attachments:
1.jpg 69 KB
2.jpg 149 KBHi martiflix,
ehm: to unbundle data from a cluster I would use the function Unbundle(ByName)…
When you are new to LabVIEW you should take all the FREE online resources offered by NI on their website!
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome -
How do I write an array of strings to a single Excel row?
I'd like to write test data, as an array of strings, to an Excel file. Attached is my attempt to modify one of the Labview 6.1 example files. This modified example will write the data to the correct row, which is determined by serial # of the UUT, but to a new sheet for each unit. I'd like to do the same thing, but to just one sheet. This sheet's data would then be saved after 50 rows of collected test data.
Thank you in advance,
Tim Denson
Attachments:
Write Table To XL.vi 58 KBSorry I didn't get back to faster on this. I've been out of town working and just really haven't had time.
Yes,
The Report Generation toolkit would make this very easy. If you have it, I'd suggest using it.
The image shown below shows the five VIs from the toolkit that I've used to write to Excel.
What this loop does is receive a string through a Queue, either open a
template or open todays file, convert the tab delimited string to an
array, write the array to the next line of the Excel file, Save (with
todays date stamp if opened from the tempate) and close it. It's a good
idea to always save and close teh file after each write if it's not
being continuously written to. In this case, a new line will be written
only once a minute or so. This lessens the chance of losing data if the
machine locks up for some reason. Opening and closing does take time
and can slow down a loop that needs to run at a certain rate. This loop
actually runs in a background process and several other processes send
data to it through the queue to be written. The queue can buffer
several data streams if needed so you won't lose data if it's busy and
you don't have to worry about two processes accessing the Excel sheet
at the same time.
Ed
Message Edited by Ed Dickens on 02-18-2006 11:12 AM
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.
Attachments:
RGTK Array to Excel.gif 14 KB -
I need to sort an array of strings based on the number in each string.
Basically, I have a directory of files that all have the same name but each with a different number on the end.
example: image 1.jpg, image 2.jpg, etc.
When I use the List Directory function that returns an array of strings containing the file names in the directory, they don't come out in a 1, 2, 3, order like they appear in the directory. It sorts them character by character so that they come out like: 1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 2, 20, 21, 22 etc.
Is there a simple way of sorting this array of strings with the file names (as above) so that they are in numerical order?It's a while since this thread was started, but I am sure others will have use for this so here goes:
The in-built array sort function sorts the strings the same way DOS and Windows do. Microsoft has fixed this in the Explorer that comes with XP, however the rest of the OS(s) still sorts the old way.
The attached "AlphaLogical String Array Sort" VIs will sort strings arrays the same way as the new XP Explorer. There are three different implementations of the sorting, one based on the Insertion sort algorithm, a Quick Sort based on recursive calls (the most elegant way, but unfortunately LabVIEW has too much overhead when doing recursive calls so this is actually a very slow alternative) and finally the fastest; a stack based Quick Sort. There is also a test VI that will show you how the different implementations perform.
I had not used recursive calls in LV much until I made the attached quick sort and was a bit disappointed by the fact that it is so slow, but it's a good learning example...The ability to do recursive calls this way was introduced in LV7 I believe...There is an example here on the zone that shows how you can calulate a factorial by using recursive calls, however - unlike for the quick sort (normally) - recursive calls are actually not the optimal solution for that calculation.
Message Edited by Mads on 09-13-2005 02:30 AM
MTO
Attachments:
AlphaLogical Sorting.zip 142 KB -
Problem in converting vector to array of strings
hi
i am having a vector which in turn contains hashtable as elements
Vector v=new Vector()
Hashtable ht=new Hashtable();
v.add(ht.add("key1",value1))
v.add(ht.add("key2",value2))
v.add(ht.add("key3",value3))
v.add(ht.add("key4",value4))now i am trying to conver this vector in to a array of string like
String[] str=(String[])v.toArray(new String[v.size()]);but i am getting java.lang.ArrayStoreExceptioncan anybody help me plz
ThanksHi,
The api for public Object[] toArray(Object[] a) says
Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.
ArrayStoreException will be thrown if the runtime type of a is not a supertype of the runtime type of every element in this Vector.
The runtime type of the elements of the vector is Hashtable.
Because String is not a supertype of Hashtable the ArrayStoreException is thrown. -
[CS3][JS] How to turn negative number in array into string
Hello,
I have a script that compares the array of the geometric bounds of all text frames to the margins for a document (all pages having the same margins). Any frames that do not match the margins are flagged.
In order to compare the array of text frame geometric bounds to two arrays of margins (because they are facing pages), I have to convert the numbers to strings.
My problem is that in the following snippet of code that creates the two margin arrays, the negative of the variables become numbers again. This would not be too difficult to solve except that all the numbers have to be 4 decimal points before converted to strings.
Thanks,
Tom
var myDoc = app.activeDocument;
var marginY1 = myDoc.pages.item(0).marginPreferences.top.toFixed(4);
var marginX1 = myDoc.pages.item(0).marginPreferences.left.toFixed(4);
var marginY2 = (myDoc.documentPreferences.pageHeight - myDoc.pages.item(0).marginPreferences.bottom).toFixed(4);
var marginX2 = (myDoc.documentPreferences.pageWidth - myDoc.pages.item(0).marginPreferences.right).toFixed(4);
var marginsRHand = [marginY1, marginX1, marginY2, marginX2];
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I would think that in the above script all the variables would be numbers and not strings. But the data browser says they are strings.
The solution is:
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Tom -
Mapping lookup up failure with input JavaBean with an array of strings
To receive input data our Web service defines a JavaBean one element of which is
an array of strings. When a test Java client calls the service method the call
is completed successfully. When a Perl client calls the service method an exception
is returned. If I understand BEA's Web service documentation, it isn't necessary
to do development for the service specifically to enable correct processing of
an array of strings.
In our environment we are running WL 8.1 SP 1.
Please review the problem documentation and explain to me the cause of the exception
and what I must do to prevent it.
Thank you.
The exception:
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><env:Header/><env:Body><env:Fault><faultcode>env:Server</faultcode><faultstring>Exception
during processing: weblogic.xml.schema.binding.DeserializationException: mapping
lookup failure. type=['http://www.w3.org/1999/XMLSchema']:xsd:string schema context=TypedSchemaContext{javaType=java.lang.String}
(see Fault Detail for stacktrace)</faultstring><detail><bea_fault:stacktrace xmlns:bea_fault="http://www.bea.com/servers/wls70/webservice/fault/1.0.0"/>weblogic.xml.schema.binding.DeserializationException:
mapping lookup failure. type=['http://www.w3.org/1999/XMLSchema']:xsd:string schema
context=TypedSchemaContext{javaType=java.lang.String}
at weblogic.xml.schema.binding.RuntimeUtils.lookup_deserializer(RuntimeUtils.java:461)
at weblogic.xml.schema.binding.SoapArrayCodecBase.getComponentDeserializer(SoapArrayCodecBase.java:574)
at weblogic.xml.schema.binding.SoapArrayCodecBase.deserialize(SoapArrayCodecBase.java:285)
at weblogic.xml.schema.binding.BeanCodecBase.processElement(BeanCodecBase.java:183)
at weblogic.xml.schema.binding.BeanCodecBase.processAllElements(BeanCodecBase.java:165)
at weblogic.xml.schema.binding.BeanCodecBase.processElements(BeanCodecBase.java:145)
at weblogic.xml.schema.binding.BeanCodecBase.deserialize(BeanCodecBase.java:108)
at weblogic.xml.schema.binding.RuntimeUtils.invoke_deserializer(RuntimeUtils.java:428)
at weblogic.xml.schema.binding.RuntimeUtils.invoke_deserializer(RuntimeUtils.java:328)
at weblogic.webservice.core.DefaultPart.toJava(DefaultPart.java:384)
at weblogic.webservice.core.DefaultMessage.toJava(DefaultMessage.java:458)
at weblogic.webservice.core.handler.InvokeHandler.handleRequest(InvokeHandler.java:78)
at weblogic.webservice.core.HandlerChainImpl.handleRequest(HandlerChainImpl.java:143)
at weblogic.webservice.core.DefaultOperation.process(DefaultOperation.java:518)
[more]
The XML generated for the Perl client:
<?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/1999/XMLSchema" xmlns:namesp2="http://namespaces.soaplite.com/perl"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><namesp1:getWorkOrdersByFilters
xmlns:namesp1="ncr.com"><gIMServiceRequest xsi:type="ns:GIMServiceRequest" xmlns:ns="java:com.ncr.gim.bean.service"><applicationID
xsi:type="xsd:string">REVLOG</applicationID><nodeId xsi:type="xsd:string">00XH</nodeId><stopCodes
xsi:type="namesp2:array" SOAP-ENC:arrayType="xsd:string[2]"><xsd:string xsi:type="xsd:string">06</xsd:string><xsd:string
xsi:type="xsd:string">16</xsd:string></stopCodes></gIMServiceRequest></namesp1:getWorkOrdersByFilters></SOAP-ENV:Body></SOAP-ENV:Envelope>
The XML generated for a test Java client:
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><env:Header/><env:Body
env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><m:getWorkOrdersByFilters
xmlns:m="ncr.com"><gIMServiceRequest xmlns:n1="java:com.ncr.gim.bean.service"
xsi:type="n1:GIMServiceRequest"><CSRCode xsi:type="xsd:string">987x00</CSRCode><applicationID
xsi:type="xsd:string">GIM</applicationID><incidentNbr xsi:nil="true"/><nodeId
xsi:type="xsd:string">00T5</nodeId><stopCodes soapenc:arrayType="xsd:string[3]"><xsd:string
xsi:type="xsd:string">00</xsd:string><xsd:string xsi:type="xsd:string">01</xsd:string><xsd:string
xsi:type="xsd:string">02</xsd:string></stopCodes></gIMServiceRequest></m:getWorkOrdersByFilters></env:Body></env:Envelope>
The JavaBean:
public class GIMServiceRequest implements Serializable {
private String applicationID = GIMConstants.UNKNOWN_APPLICATION_ID;
private String nodeId = null;
private String incidentNbr = null;
private String CSRCode = null;
private String[] stopCodes = null;
public void setStopCodes(String[] aStopCodes) {
stopCodes = aStopCodes;
public String[] getStopCodes() {
return stopCodes;
[more]
The service build.xml file:
<project name="GIMService" default="all" basedir=".">
<target name="all" depends="ear"/>
<target name="ear">
<servicegen
destEar="GIMService.ear"
contextURI="GIMContext" >
<service
ejbJar="GIMServiceEJB.jar"
targetNamespace="ncr.com"
serviceName="GIMService"
serviceURI="/GIM_URI"
generateTypes="True"
expandMethods="True"
style="rpc"
protocol="http" >
<client
clientJarName="GIMService_client.jar"
packageName="com.ncr.gim.gimservice.client" >
</client>
</service>
</servicegen>
</target>
</project>Hi Jeff,
Looks like the Perl client is using an older (deprecated) schema
namespace "http://www.w3.org/1999/XMLSchema" that is causing this
failure.
Hope this helps,
Bruce
Jeff Carey wrote:
>
To receive input data our Web service defines a JavaBean one element of which is
an array of strings. When a test Java client calls the service method the call
is completed successfully. When a Perl client calls the service method an exception
is returned. If I understand BEA's Web service documentation, it isn't necessary
to do development for the service specifically to enable correct processing of
an array of strings.
In our environment we are running WL 8.1 SP 1.
Please review the problem documentation and explain to me the cause of the exception
and what I must do to prevent it.
Thank you.
The exception:
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><env:Header/><env:Body><env:Fault><faultcode>env:Server</faultcode><faultstring>Exception
during processing: weblogic.xml.schema.binding.DeserializationException: mapping
lookup failure. type=['http://www.w3.org/1999/XMLSchema']:xsd:string schema context=TypedSchemaContext{javaType=java.lang.String}
(see Fault Detail for stacktrace)</faultstring><detail><bea_fault:stacktrace xmlns:bea_fault="http://www.bea.com/servers/wls70/webservice/fault/1.0.0"/>weblogic.xml.schema.binding.DeserializationException:
mapping lookup failure. type=['http://www.w3.org/1999/XMLSchema']:xsd:string schema
context=TypedSchemaContext{javaType=java.lang.String}
at weblogic.xml.schema.binding.RuntimeUtils.lookup_deserializer(RuntimeUtils.java:461)
at weblogic.xml.schema.binding.SoapArrayCodecBase.getComponentDeserializer(SoapArrayCodecBase.java:574)
at weblogic.xml.schema.binding.SoapArrayCodecBase.deserialize(SoapArrayCodecBase.java:285)
at weblogic.xml.schema.binding.BeanCodecBase.processElement(BeanCodecBase.java:183)
at weblogic.xml.schema.binding.BeanCodecBase.processAllElements(BeanCodecBase.java:165)
at weblogic.xml.schema.binding.BeanCodecBase.processElements(BeanCodecBase.java:145)
at weblogic.xml.schema.binding.BeanCodecBase.deserialize(BeanCodecBase.java:108)
at weblogic.xml.schema.binding.RuntimeUtils.invoke_deserializer(RuntimeUtils.java:428)
at weblogic.xml.schema.binding.RuntimeUtils.invoke_deserializer(RuntimeUtils.java:328)
at weblogic.webservice.core.DefaultPart.toJava(DefaultPart.java:384)
at weblogic.webservice.core.DefaultMessage.toJava(DefaultMessage.java:458)
at weblogic.webservice.core.handler.InvokeHandler.handleRequest(InvokeHandler.java:78)
at weblogic.webservice.core.HandlerChainImpl.handleRequest(HandlerChainImpl.java:143)
at weblogic.webservice.core.DefaultOperation.process(DefaultOperation.java:518)
[more]
The XML generated for the Perl client:
<?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/1999/XMLSchema" xmlns:namesp2="http://namespaces.soaplite.com/perl"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><namesp1:getWorkOrdersByFilters
xmlns:namesp1="ncr.com"><gIMServiceRequest xsi:type="ns:GIMServiceRequest" xmlns:ns="java:com.ncr.gim.bean.service"><applicationID
xsi:type="xsd:string">REVLOG</applicationID><nodeId xsi:type="xsd:string">00XH</nodeId><stopCodes
xsi:type="namesp2:array" SOAP-ENC:arrayType="xsd:string[2]"><xsd:string xsi:type="xsd:string">06</xsd:string><xsd:string
xsi:type="xsd:string">16</xsd:string></stopCodes></gIMServiceRequest></namesp1:getWorkOrdersByFilters></SOAP-ENV:Body></SOAP-ENV:Envelope>
The XML generated for a test Java client:
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><env:Header/><env:Body
env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><m:getWorkOrdersByFilters
xmlns:m="ncr.com"><gIMServiceRequest xmlns:n1="java:com.ncr.gim.bean.service"
xsi:type="n1:GIMServiceRequest"><CSRCode xsi:type="xsd:string">987x00</CSRCode><applicationID
xsi:type="xsd:string">GIM</applicationID><incidentNbr xsi:nil="true"/><nodeId
xsi:type="xsd:string">00T5</nodeId><stopCodes soapenc:arrayType="xsd:string[3]"><xsd:string
xsi:type="xsd:string">00</xsd:string><xsd:string xsi:type="xsd:string">01</xsd:string><xsd:string
xsi:type="xsd:string">02</xsd:string></stopCodes></gIMServiceRequest></m:getWorkOrdersByFilters></env:Body></env:Envelope>
The JavaBean:
public class GIMServiceRequest implements Serializable {
private String applicationID = GIMConstants.UNKNOWN_APPLICATION_ID;
private String nodeId = null;
private String incidentNbr = null;
private String CSRCode = null;
private String[] stopCodes = null;
public void setStopCodes(String[] aStopCodes) {
stopCodes = aStopCodes;
public String[] getStopCodes() {
return stopCodes;
[more]
The service build.xml file:
<project name="GIMService" default="all" basedir=".">
<target name="all" depends="ear"/>
<target name="ear">
<servicegen
destEar="GIMService.ear"
contextURI="GIMContext" >
<service
ejbJar="GIMServiceEJB.jar"
targetNamespace="ncr.com"
serviceName="GIMService"
serviceURI="/GIM_URI"
generateTypes="True"
expandMethods="True"
style="rpc"
protocol="http" >
<client
clientJarName="GIMService_client.jar"
packageName="com.ncr.gim.gimservice.client" >
</client>
</service>
</servicegen>
</target>
</project> -
How can I make an array of strings?
or, depending on what the heck you're talkingabout
That's bad advice now that Java is in version 5.
The standard loop is the for-each loop. If you don't
use it you're going down in complexity which is a
very bad thing according to the "premature
optimization is evil" bunch. So use for-each if you
don't want to be accused of "premature optimization"
by jverd and yawmark and other prominent members of
that bunch.Thanks for your advice. I use version 1.4.2. I did not intend to give bad advice. My post was targeted at someone who obviously did not understand "nuts and bolts" of java. It was not intended to be a lesson about "good design" or "real life applications" or "standard for loops in version 1.5". I gave an example that i feel is both adequate and appropriate for the target audience. It's intended purpose was to demonstrate very simple and basic concepts to someone who asked a seemingly simple and basic question that could possibly irritate a seasoned programmer like yourself. I have read your helpful posts in this thread and would welcome comments from yawmark and jverd also. I am sure they would be helpful to others who would read this thread in the future but their level of experience (along with Mr Warnerja) would perhaps be lost and uncomprehended by the OP. If in the context of the original question, you believe that my posts and simple examples are inappropriate, then would you kindly explain in terms that the OP can understand? Also explain (in this context) how my posts were wrong and meaningless.
respectfully yours,
Arbie -
Array of strings strict type def not updating
I have defined an Array of Strings (ctrl) as a strict type def. When I update this array (add another string to it) the values don't update where this control is used. Can someone please explain why this is occuring.
Only the size of the array _shell_ is locked, not the size of the array data. The array shell is a window into the data of the array control. If you change the value of the index display you will change the indices visible inside the array shell.
-Jim -
Hi,
I have an array of strings like:
private String myStrArr[];
myStrArr = new String[256];
I have to get rid of hard coded size.
Is it ok to use vector instead , or is there another way to get rid of hard coded size.
If we can use vector instead , is there a solution similar for booleans??
I also have an array of booleans:
private boolean myBoolArr[];
myBoolArr = new boolean[256]You can wrap the primitive booleans you have in the Boolean class via
myList.add(new Boolean(primitiveBooleanValue));Even better, to save space, use the already existing Boolean values instead of creating new ones. If you are using Java 1.4, you can:
myList.add(Boolean.valueOf(primitiveBooleanValue));Otherwise you can do one of these:
myList.add( primitiveBooleanValue ? Boolean.TRUE : Boolean.FALSE ); -
"Using a CIN to Create an Array of Strings in LabVIEW" example crashes LV on Linux
Tried to utilize this NI example: "Using a CIN to Create an Array of Strings in LabVIEW" (http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B4B282BE7EF907C8E034080020E74861&p_node=&p_source=External)
Compiles OK with the makefile made by the LV's lvmkmf utility. Nevertheless when I try to run the VI (with the code loaded into the CIN, of course), LabVIEW 7.1.1 on a SUSE 9.3 Linux machine crashes:
LabVIEW caught fatal signal
7.1.1 - Received SIGSEGV
Reason: address not mapped to object
Attempt to reference address: 0x0
Segmentation fault
Any ideas? Did anybody try this on a Windows machine?H View Labs wrote:
Tried to utilize this NI example: "Using a CIN to Create an Array of Strings in LabVIEW" (http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B4B282BE7EF907C8E034080020E74861&p_node=&p_source=External)
Compiles OK with the makefile made by the LV's lvmkmf utility. Nevertheless when I try to run the VI (with the code loaded into the CIN, of course), LabVIEW 7.1.1 on a SUSE 9.3 Linux machine crashes:
LabVIEW caught fatal signal
7.1.1 - Received SIGSEGV
Reason: address not mapped to object
Attempt to reference address: 0x0
Segmentation fault
Any ideas? Did anybody try this on a Windows machine?
This code is badly broken. In addition to resizing the actual handle to hold the number of string handles you also would need to create the string handles itself before attempting to write into them. NumericArrayResize is the fucntion to use as it will either resize an existing handle (if any) or create a new one if the value is uninitialized (NULL).
/* resize strarr to hold handles to NUMSTRINGS strings */
err = SetCINArraySize((UHandle)strarr, 0, NUMSTRINGS);
if (err)
goto out;
/* perform this loop once for each element */
/* of array of strings being created */
for (i = 0; i < NUMSTRINGS;) {
LStrHandle handle = (*strarr)->arg1[i];
/* determine length of string that will be element of strarr */
strsize = StrLen(str[i]);
err = NumericArrayResize(uB, 1, &handle, strsize);
if (err)
goto out;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/* moves strsize bytes from the address pointed to */
/* by str[i] to the address pointed to by the data pointer in the handle */
MoveBlock(str[i], LStrBuf(*handle), strsize);
/* manually set size of string pointed to by *strarr */
(*((*strarr)->arg1[i]))->cnt = strsize;
/* manually set dimSize of strarr */
(*strarr)->dimSize = ++i;
return noErr;
out:
return err;
Rolf KalbermatterMessage Edited by rolfk on 06-30-2005 03:15 AM
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions -
H:dataTable value as array of Strings vs array of objects
I'm trying to use a h:dataTable with an h:inputText as one of the columns. If my bean returns an array of Strings, then the h:dataTable can't update them. (I added a submit button that just updates the fields and returns to the current page.) If I use an array of objects, in this case a simple wrapper class, it works. Why is this?
This won't work:
public class EmailBean {
private String[] m_emails;
public String[] getEmails() {
return m_emails;
public void setEmails(String[] emails) {
m_emails = emails;
}But this will:
public class EmailBean {
private Email[] m_emails;
public EmailBean() {
m_emails = new Email[] {
new Email("[email protected]"),
new Email("[email protected]"),
new Email("[email protected]")
public Email[] getEmails() {
return m_emails;
public void setEmails(Email[] emails) {
m_emails = emails;
}public class Email {
private String email;
public Email(String email) {
this.email = email;
public String getEmail() {
return email;
public void setEmail(String email) {
this.email = email;
}For the one that uses the Email class, I use this:
<h:dataTable value="#{emailTestBean.emails}"
var="email">
<h:column>
<f:facet name="header">
<h:outputText value="Email Address" />
</f:facet>
<h:inputText value="#{email.email}" />
</h:column>
<f:facet name="footer">
<h:commandButton value="Submit" />
</f:facet>
</h:dataTable>Otherwise I don't need the extra ".email":
<h:dataTable value="#{emailTestBean.emails}"
var="email">
<h:column>
<f:facet name="header">
<h:outputText value="Email Address" />
</f:facet>
<h:inputText value="#{email}" />
</h:column>
<f:facet name="footer">
<h:commandButton value="Submit" />
</f:facet>
</h:dataTable>
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