Swap the key focus at Array element

Hello,
Would you help me about the title query ? the details is in attachment. thanks @! LV7.1 version.
Attachments:
help.vi ‏40 KB

Attached is a quick example showing the basic method needed for a table.
An array is more complex, because to refer to a specific array element, you first have to resize the number of visible elements to 1, then use the Array Element>Reference and cast that reference to a cluster, and set the key focus to the right element of the cluster and then resize the array back to its display size. To avoid having the user see this, you need to use the Defer Panel Updates property, and this might cause the control to lose the focus, I'm not sure.
A side note is that using Value property nodes is not a good way of doing things. A local is usually better and using real data flow is even better.
Try to take over the world!
Attachments:
help mod 71.vi ‏63 KB

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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.
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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

MSI Wind U110 - Reverse/swap the keys functions of the "Fn" key with "Left Ctrl"

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Quote from: Henry on 08-December-09, 10:47:03
Have you tried using the 'Search' function up there.
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How to change the color of Numeric array elements (seperately) programmatically using property node??

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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.
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How to add a character at the end of an array element that meets certain criteria.

Hi. I am using CF 9.2.1. I started learning CF yesterday, and I am trying to figure out a way to add a special character (like "?", "!"," & ") to an array row if the first row element (say, element [1][1]) has a specific letter like " t" in the word it is holding. In this case the special character will be added at the end of the last row element (element [1][3]).
Example: The take columns are: "Firstname", "Lastname", "Age". If Firstname contains an "s" or "S" (in any order) then add "!" at the end of the row so that :
Sam, Rubins, 26 !
Nick, Palo, 32
Robert, Williams, 28
Oscar, Ramirez, 23 !
I tried using the ReReplace, Refind and the #findoneof functions. I could probably loop through the array and return a value and store, while storing the value in a separate variable and using an if/Boolean function to compare that value and so on.... But I am sure there's an easier and more efficient way. Thanks in advance.

<cfset CityInfo = QueryNew("City, State, LCode","VarChar, VarChar, Integer")>
<cfset newRow = QueryAddRow(CityInfo, 2)>
<cfset newRow = QueryAddRow(CityInfo, 3)>
<cfset newRow = QueryAddRow(CityInfo, 4)>
<cfset newRow = QueryAddRow(CityInfo, 5)>
<cfset newRow = QueryAddRow(CityInfo, 6)>

<cfset temp = QuerySetCell(CityInfo, "City", "Dallas", 1)>
<cfset temp = QuerySetCell(CityInfo, "State", "TX", 1)>
<cfset temp = QuerySetCell(CityInfo, "LCode", "214", 1)>
<cfset temp = QuerySetCell(CityInfo, "City", "Fort Worth", 2)>
<cfset temp = QuerySetCell(CityInfo, "State", "TX", 2)>
<cfset temp = QuerySetCell(CityInfo, "LCode", "817", 2)>
<cfset temp = QuerySetCell(CityInfo, "City", "San Antonio", 3)>
<cfset temp = QuerySetCell(CityInfo, "State", "TX", 3)>
<cfset temp = QuerySetCell(CityInfo, "LCode", "210", 3)>
<cfset temp = QuerySetCell(CityInfo, "City", "L.A.", 4)>
<cfset temp = QuerySetCell(CityInfo, "State", "CA", 4)>
<cfset temp = QuerySetCell(CityInfo, "LCode", "213", 4)>
<cfset temp = QuerySetCell(CityInfo, "City", "Austin", 5)>
<cfset temp = QuerySetCell(CityInfo, "State", "TX", 5)>
<cfset temp = QuerySetCell(CityInfo, "LCode", "512", 5)>
<h4> Number1. City info TABLE contents:</h4>
<cfoutput query = "CityInfo">
#City# #State# #LCode#<br>
</cfoutput>

<cfset cityarray=arraynew(2)>

<cfloop query="CityInfo">
<cfset cityarray[CurrentRow][1]=City>
<cfset cityarray[CurrentRow][2]=State>
<cfset cityarray[CurrentRow][3]=LCode>
</cfloop>
<h4>Number2. City info ARRAY contents before appending:</h4>
<cfloop index="Counter" from=1 to=5>
<cfoutput>
City: #cityarray[Counter][1]#,
Estate: #cityarray[Counter][2]#,
Code: #cityarray[Counter][3]#<br>
</cfoutput>
</cfloop>

<cfset cityarray[6][1] = "Irving" />
<cfset cityarray[6][2] = "Texas" />
<cfset cityarray[6][3] = "972" />
<cfset cityarray[4][1] = "Los Angeles" />
<h4>Number3. City info Array contents after adding Irving, TX and updating L.A.:</h4>
<cfloop index="Counter" from=1 to=6>
<cfoutput>
City: #cityarray[Counter][1]#,
Estate: #cityarray[Counter][2]#,
Code: #cityarray[Counter][3]#<br>
</cfoutput>
</cfloop>
<br>

<h4>Number4. City info after searching for "s"</h4>
<cfloop index="Counter" from=1 to=6>
<cfoutput>
City: #cityarray[Counter][1]#,
Estate: #cityarray[Counter][2]#,
Code: #cityarray[Counter][3]#,

#findoneof("sS",cityarray[Counter][1])#
<br>
</cfoutput>
</cfloop>

It is much simpler than you think. Additions and modifications are in italics. Good luck!
<h4>Number2. City info ARRAY contents before appending:</h4>
<cfloop index="Counter" from="1" to="#CityInfo.recordcount#">
<cfoutput>
City: #cityarray[Counter][1]#,
State: #cityarray[Counter][2]#,
Code: #cityarray[Counter][3]#<br>
</cfoutput>
</cfloop>

<cfset cityarray[6][1] = "Irving" />
<cfset cityarray[6][2] = "Texas" />
<cfset cityarray[6][3] = "972" />
<cfset cityarray[4][1] = "Los Angeles" />
<h4>Number3. City info Array contents after adding Irving, TX and updating L.A.:</h4>
<cfloop index="Counter" from="1" to="#arrayLen(cityarray)#">
<cfoutput>
City: #cityarray[Counter][1]#,
State: #cityarray[Counter][2]#,
Code: #cityarray[Counter][3]#<br>
</cfoutput>
</cfloop>
<br>

<h4>Number4. City info after searching for "s"</h4>
<cfloop index="Counter" from="1" to="#arrayLen(cityarray)#">
    <cfset sPosition=findNoCase("s",cityarray[Counter][1])>
    <cfoutput>
    City: #cityarray[Counter][1]#,
State: #cityarray[Counter][2]#,
    Code: #cityarray[Counter][3]#
    </cfoutput>
   <cfif sPosition GT 0>
    <cfelse> 
    (no 's')
    </cfif>
    <br>
</cfloop>

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Welcome to the forum!
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I'm using LabView 5.1.
The key focus is not visible for all objects when tabbing through a "disabled and grayed-out" object.
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Hi Ben,
Don't worry, time is not an issue... I'm posting an example of a VI with the problem I described. I noticed that the problem occurs only with "dialog buttons".
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Attachments:
3buttons.vi ‏22 KB

Type defined array of clusters for holding configuration data - setting default values for each array element

Hi,
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The type def controls are then put in a subVI that chooses the appropriate one based on the DUT Type enumeration wired to a case structure.
I am having problems with the type defined control. I am seeing issues when attempting to save a unique configuration to each array element in the array of clusters. Somehow it worked to begin with, but now clicking "Data Operations --> Make Current value default" on individual elements of the cluster or the entire cluster (array element) is not saving the data when I re-open the type def control. What am I doing wrong? Am I trying to do something with arrays of clusters that I should not be doing?
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Solved!
Go to Solution.
Attachments:
CM_AnalogInputs.ctl ‏11 KB

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Chart array elements separately

Labview forum,
I have a for loop which produces an array of 2 elements.
This is contained within an outer loop. Inside the outer loop, I have connected the array to a chart function. For each outer loop iteration, the the chart plots both array elements as sequential elements in the same plot. This was not the behaviour I wanted.
Instead, with each outer loop increment, I would like each array element to be added to a separate curve on the same chart axes. Thus, in this case, two curves would be plotted simultaneously.
How can I achieve this?
Attached is a simple example of my current situation.
Regards,
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Message Edited by Jamieg on 09-17-2007 06:45 AM
Using Labview version 8.0
Attachments:
sample chart loop.vi ‏14 KB
sample chart loop1.vi ‏14 KB

An alternative solution uses the "array to cluster" function. (Don't forget to set the cluster size!)
Message Edited by altenbach on 09-17-2007 07:50 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
sample_chart_loop1MOD.vi ‏15 KB
multichart.png ‏2 KB

Key focus problem

Hi,
I have a small subvi that simply has a string control which the user enters a string value.
I am using the key focus property node to put the cursor in the string control.
The subvi works very well alone, however when I call it from my main vi, the cursor is not in the string control.
It seems the key focus is not working. Any suggestions?

OK, I agree there is still something broken in that subVI, because it does not work with a TRUE setting either.
I was able to fix it by simply going to the windows properties of the subVI in question and setting its mode to "Dialog", then saving it again. (Make sure to close the FP before running the main VI) This seem to clear the corruption and the keyfocus now works. See if this works for you too. Good luck!
LabVIEW Champion . Do more with less code and in less time .

Testing array elements

Hello,
This might be a very stupid question, but I did do quite a bit of searching and haven't found the answer. I'm trying to test the value of an array element and not sure how to do this. Here's the code:
public static void Fibbonacci(int end){
     Integer[] f = new Integer[end];
     f[0] = 0;
     f[1] = 1; //2
     int i = 2;
     while(f[i] <= end){
     f[i] = f[i-1] + f[i-2];
     print(f);
     i++;
     print(Array.getInt(f, i));
My understanding is that, as in C, the array elements are pointers (or reference) to the actual values. Is there a way to dereference? How would I assign an element of an array to a single variable to of the same type as the array elements?
Thank you very much for your time!
Edited by: DaneWKim on May 10, 2010 8:59 PM

Hmmmm... it seems I'm missing something. In my previous code,
while(f[i] <= end){doesn't seem to evaluate. also, when I do
j = f;
print(j);
I get 0 even if the element indexed has a non-zero value.

Key Focus when Adding Tags

When I click the "Add Tag" button at the bottom of a post, the text entry field does not automatically receive key focus, meaning I must click on the field before I begin to type or CTRL+V a tag from the clipboard. I would like to see this text entry box automatically receive keyboard focus after clicking "Add Tag".
a.lia-user-name-link[href="/t5/user/viewprofilepage/user-id/88938"] {color: black;} a.lia-user-name-link[href="/t5/user/viewprofilepage/user-id/88938"]:after {content: '';} .jrd-sig {height: 80px; overflow: visible;} .jrd-sig-deploy {float:left; opacity:0.2;} .jrd-sig-img {float:right; opacity:0.2;} .jrd-sig-img:hover {opacity:0.8;} .jrd-sig-deploy:hover {opacity:0.8;}
Solved!
Go to Solution.

Good news this time... the key focus for adding tags works in the upgraded version which you will be hearing more about soon!
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Remove "Highlight" of Key Focus

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Hi Novatron,
I'm not aware of any setting that will remove the visible border around
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Barcode scanner key focus

Hi All
I have doubt in setting the key focus to the string.
Once i started the program, message pops up to the user.once the user clicked OK button the cursor have to come to string. I have attached my VI.pls give me some guidance
Thanks
Attachments:
Barcode_ex1.vi ‏19 KB

Hi Veeru,
do you really need the PopUp every loop iteration? I made some changes in your vi, maybe it helps.
You should define an event case for every Control you want to work with.
Mike
Attachments:
Barcode_LV80.vi ‏20 KB

Boolean key focus

I have an event case that executes when a boolean is pressed by the user. In the event I set the property 'key focus' to TRUE for an string control where the user needs to enter information. The first time the event executes key focus for the string control is not set. The second time onward, the key focus gets set. How come it does not get set the first time the event occurs?

Yup, I've done that many times myself. Can you post an example showing the effect?
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Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Swap the key focus at Array element

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