Excel & ActiveX: Insert arbitrary columns from 2D array and create graph problems
Hi there,
I want to insert data from either a 1D or 2D array from LabView into Excel and create graphs.
I used the information from the following example:
http://www.ni.com/example/28934/en/
and was able to create a new Excel file (I'm using Excel 2010), writing data from an 1D array to a column in excel by creating a while loop and using the first element of the array to write it to a specific cell. I use the counter of the loop to write to the next cell when the loop starts over and always delete the first value, which I write to the cell, from the array until it is empty.
Now I also would like to write a 2D array - so the first column in Excel should be the first column from the array and so. Here I cannot use the loop counter directly as Excel only counts 1,2,... for the rows, but uses A,B,... to count columns. Also I do not know in advance how many columns my 2D array will contain, so creating a lookup table like (A means 1, B means 2,...) is not really an option (except there really is no other way). Is there a possibilty to convert numbers into letters or some way to 'explain' to the program that column 2 in the array means column B in Excel for example, or is there a way to insert new columns?
I figured out how to add new Worksheets and as I also need to create a certain number of Worksheets and I know that on standard 3 sheets are present when creating the file, I use the 'add' methode to create every new worksheets before worksheet 3 - I could use the same methode to create new columns in Excel, but so far I didn't find a methode to do so. Or is there a way to enter the whole 2D array at once?
Then I'd like to create a graph (in case of the 1D arrays a bar plot, when using 2D arrays a 3D plot) to view the data. I found this example:
http://www.ni.com/newsletter/51339/en/
-> as I do not have the toolkit I'd like to do it using ActiveX directly, so I tried to do things like shown under the headline 'DIY ActiveX/.NET'
I tried to load the snippet to a new Excel file but got the error message 'microsoft.office.interop.excel.dll not found' and hence the code is not working. That confuses me a little as I would guess when this dll is not present I cannot access Excel from LabView at all, though my understanding of what I'm really doing so far is quiet limited. ;-)
Also - as far as I understand from the snippet - when creating a new chart object I should be able the create methodes for it, however when I do a right click on the chart object of an ActiveX Worksheet symbol there are none listed.
To explain my problems better I added a snippet showing my two problems: The inner of the two while loops shows how I import a 1D array. In the outer loop I seperate the columns. I know that currently this is not working as all data end up in column A of the Excel sheet - so I would need to convert the number of the outer counter to A, B,... or find a different solution.
Moreover on the snippet I placed an ActiveX Worksheet Property with the Chart Object - as I can see the difference to the Chart Object in the example code from the last link above is the color. However I'm not sure what that means and how to change/ solve this.
And just to make sure - I know this way the VI does not run as the Chart Object is placed completely wrong - I just did it, so it is included in the snippet.
I'd be thankful for any suggestions,
Thanks!
Solved!
Go to Solution.
Attachments:
ExcelAreaScan.png 60 KB
Hello everyone and thanks for the answers.
I only have the LabView Student Edition available here - is the toolkit included in it too. How can I check if it is installed/ available and in case it is installed - where can I find it?
Today I had time to take a look at the example
Create via ActiveX Labview a XY Scatter plot graph on an excel sheet
It almost does what I want in terms of creating a graph. The only problem I could not fix, is that in this example a sheet is created where only the graph is present. i'd like to add the graph to a previously created worksheet. Today I tried get this working but it seems I stilll don't really understand what I'm doing, I'll post a snippet of my code as soon as I can access the PC with LabView on it again.
I also took a look at the other example for inserting 2D attays - it seems to be what I need, I just had no time so far to test it, I'll post an update when I could test it.
Thanks for the help so far!
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System.err.println("SQLException: " + ex.getMessage());
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton2_actionPerformed(e);
contentPane.add(jButton2, new XYConstraints(126, 113, -1, -1));
//Overridden so we can exit when window is closed
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
System.exit(0);
void jButton2_actionPerformed(ActionEvent e) {
try{
OutputStream out;
XMLOutputter outputter;
Element root;
org.jdom.Document doc;
root = new Element("PINFO");
String query = "SELECT * FROM PINFO WHERE PID=2 OR PID=4";
ResultSet rs = stmt.executeQuery(query);
/*===========This is where i am passing the ResultSet and boolean=======
===========value to either add the null or not null values in the file======*/
rstx = new ResultSetToXML(rs,true);
} //end of try
catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
======================================================================================
ResultSetToXML class
====================
public class ResultSetToXML {
private OutputStream out;
private Element root;
private XMLOutputter outputter;
private Document doc;
// Constructor
public ResultSetToXML(ResultSet rs, boolean checkifnull){
try{
String tagname="";
String tagvalue="";
root = new Element("pinfo");
while (rs.next()){
Element users = new Element("Record");
for(int i=1;i<=rs.getMetaData().getColumnCount(); ++i){
tagname= rs.getMetaData().getColumnName(i);
tagvalue=rs.getString(i);
System.out.println(tagname);
System.out.println(tagvalue);
/*============if the boolean value is false it adds the null and not
null value to the file =====================*/
/*============else it checks if the value is null or the length is
less than 0 and does the else clause in the if(checkifnull)===*/
if(checkifnull){
if((tagvalue == null) || tagvalue.length() < 0 ){
users.addContent((new Element(tagname).setText(tagvalue)));
else{
users.addContent((new Element(tagname).setText(tagvalue)));
else{
users.addContent((new Element(tagname).setText(tagvalue)));
root.addContent(users);
out=new FileOutputStream("c:/XMLFile.xml");
doc = new Document(root);
outputter = new XMLOutputter();
outputter.output(doc,out);
catch(IOException ioe){
System.out.println(ioe);
catch(SQLException sqle){Can someone please help me with this problem
Thanks. -
I've had **** with my iMac, the hard-drive failed so i replaced it with a new 1TB Samsung drive. Then when i tried to install SL from the install disk, all went to plan until it asked me which drive i wanted to install it on, where it came up with a box where my options should have been, but instead it didn't give me any options to install it on any drive i.e. it asked which drive i wanted to install it on but no drives came up to select.
So i followed the advice from another forum, look at the 'Extended Hard-drive preparation' response
( https://discussions.apple.com/message/10576009#10576009 )
After following these instructions i have now got a new partition, but when i restarted my computer to install SL on the drive, the option to boot from the drive is now not available, now i must boot from the install disk, whereas before i was able to boot from either the install disk or the hard drive. The hard drive is still visible in disk utility as it always has been, but i am now unable to boot from it, let alone install SL.
Please help my iMac has been broken for months and i've been trying to fix it for so long and am getting problem after problem. Thank you!
<div class="mcePaste" id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" mcestyle="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"></div>Hi db2
That off the shelf MS-DOS / FAT-32 drive needs to re-partitioned GUID Partition Table / Mac OS Extended (Journaled) before you can install OS X and Startup your Intel iMac from it.
1. Boot from your original install or retail SL DVD and open Disk Utility.
2. Highlight the new HD in the list of drives and select the Partition tab.
3. Under Volume Scheme select 1 Partition and click on the Options... button.
4. Select GUID Partition Table in the drop down window and click OK.
5. Set the Format to Mac OS Extended (Journaled) and click the Apply button.
6. Once thats done, then you can do a clean SL Install, Restore from TM , your old HD or Bootable Clone.
Dennis -
How to hide or remove several areas from a clip and create a generator
Hello dear comnunity,
I'm in an urgent need an assistance:
I need to proeuce a video of a screen recoding.
I'm using Camtasia in order to record. The meterial is pretty static.
The problem:
I have a lot of information on the screen while I'm recoding which I'd like to remove in post.
Basically what you see is a poker table. Each circle represents a player.
What I need is to be able to "remove" all these colorful numbers in order to provide with a "cleaner" look.
I understand that this can be accomplished by "layers" i.e.
Use this as a "background":
and then remove all of the areas with the colorful numbers.
In short:
I'd like to remove multiple areas from a single clip without having "holes".
Note:
Since I producing multiple vidoes I would like to be able to have some sort of effect\preset\generator etc in order to automate the process every time.
I have FCP X as well as Motion 5.
I saw some split screen generators with multiple areas. It looks like what I need but I do need to make my own custom splits.
PLEASE try to provide with detailed information as much as possible. I'm not a noobie but not an expect as well.
Thanks in advance, I really really appreciate your assistance.By default, the toolbar cannot be hidden.
However, you can add button items to the toolbar, hook up to the event handlers, and create new menus and menu-items in your gadgets.
What version of Smart Space are you using? The SDK is slightly different between 9.3.1 and 11.1.x
There are ways to work around the toolbar and do some other slick UI renderings in regards to these topics.
Please drop me an email and we can have a phone conversation around what you are trying to do. I may be able to provide some ideas for you.
Thanks,
Rob Hull
Oracle Smart Space
Development Manager
[email protected]
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