set items in the cluster of typedef double tables

Similar Questions

• Add the cluster to an existing table in oracle

  Is it possible to add the cluster of an existing table? For example...

  I have a table:

  CREATE TABLE table_name)

  t_id number PRIMARY KEY,

  t_name varchar2 (50));

  Cluster:

  CLUSTER to CREATE my_cluster

  (c_id NUMBER) SIZE 100;

  Y at - it a command such as: ALTER TABLE t_name add CLUSTER my_cluster (t_id); or something like that?

  Because I want to table to look like this:

  CREATE TABLE table_name)

  t_id number PRIMARY KEY,

  t_name varchar2 (50))

  My_cluster (t_id) CLUSTER;

  And drop all the tables isn't really what I want to do.

  Thank you

  No,

  It is the reverse:

  A table can be stored as a segment of memory (the common way) or in a cluster.

  Will not be part of the table "in the cluster", but other parts outside.

  Please create a new table in the cluster and insert your data here.

  Sorry,

  Martin

• Update only one item in the cluster while avoiding race conditions

  I have a cluster called "Inputs" that has a bunch of data within all kinds of data types.

  I have several loops in the code I want each of them to update a specific element within the cluster.

  I have to get the cluster use this Bundle by name on the specific item and then rewrite in the cluster.

  This way I have racing conditions because two loops can 'be' the cluster at the same time, but when they rewrite a wiil overwrites the other.

  How can I avoid these race conditions?

  I am familiar with Globals functional if it is connected to a possible solution (I have the feeling that it is..)

  Thank you!

  I still think that my suggestion to use the value of data references would be easier. The structure of the International preliminary examination will block the concurrent access to the data cluster: no race condition.

  

  The last loop (option) shows how to query the State of the heap of data.

• Iterate through the items in the cluster

  Hi all

  I have a cluster with several elements of the same type. I want one any of them handle in the same way, keeping however their labels. My solution works, however, it is prone to errors of cabling one its not really scalable. you have a better idea?

  Thank you!

  

  RubeGoldberg alarm!

  What is the problem with the application of the function of math on the cluster directly?

  

• Easiest way to convert the cluster with named variables table?

  I have a table of variables, I essentially unbundle this table of named variables.

  I believe that the only way to achieve this is to convert the cluster table (not to mention that the deletion of each item one by one)?

  Is what I've done below the best way to do it? seems a little weird to unbundle and rebundle by name.

  Comments appreciated.

  

  Altenbach says:

  Maybe a simple catalogued the cluster would work.

  Of course, it does!

  

• move the cluster for sub vi

  Hello

  I want to spend a cluster that can change its content to one under VI. The cluster does not change by program, but during programming, that is, I could add or remove items in the / cluster. Using direct wire or local variables I would have to change each sub VI that uses the cluster updated the. I also tried the typedefs, but I met the same problem.

  At the same time the Subvi should be able to update the cluster I spent.

  In C++, I use classes like struct (equivalent to the cluster of LV) and pass a pointer to a class object to a function. Within the function, I choose the members of the class I want to use inside this function. If I change the class structure, the functions of the Word are not affected (of couse only as long that I remove irrelevant of class members of the called function).

  Example (from C++):

  settings * param;  'settings' is a class that I use to group variables

  doSomethingUseful (param);

  / * the doSomethingUseful function uses the pointer to parameter and accesses the members of

  Param-> variable1

  Param-> variable2

  ...

  Hereby, I can change the values of variables stored in the param object

  */

  Best,

  Max

  
  

• How does the cluster?

  Hi all

  I am subsequently helps him learn how to use the cluster to reduce the number of inputs/outputs, but it is quite confusing that how do you know which is which. It follows from the order, whether or not we have added to the cluster? I put a cluster contains 4 numbers DBL as an entry of my Subvi. I name the elements of each DBL as A, B, C, D. In the main code, I create a cluster contains 4 DBL and trying to feed on this cluster in the Sub - VI. But how do I know what number I feed in the main code is A, B, C and D?

  For example, I create a Subvi with the participation of a single cluster. The cluster has 4 numbers DBL named A, B, C and D.

  

  Now if want to feed a cluster in this sub - VI, I create a cluster and connect the 4 digits in this cluster. But if I use the bundle cluster, I need to connect the number in order thus to fill A, B, C and D. But if this Subvi was created by someone else, how can indicate the order of the elements in the cluster WAITED?

  First, you must give the elements of the cluster in the control Subvi the same names (A, B, C, D) as used in the VI call and also to ensure that the order of cluster is the same. If you are not sure fight the cluster command, you can reorder the items (right click) and select the desired command. And Yes, the initial cluster order is the order in which you have added the items.

  Generally, it is preferable that the cluster a typedef and used worldwide. This way to the typdef change is propagated to all the places where it is used.

  It is often more auto-documentent and cleaner to use together and ungroup by name. A constant of diagram of typedef wire upward 'bundle by name' to make the labels available.

• Insert into the cluster by string name

  Hello

  I am writing a Labview program to query .NET database management system and get the connected device (like USB CDC) listed with Port of corresponding Com, VID, PID, manufacturer of SN name ect...

  I got to the point where I get the channels I need and want to organize them in a cluster table.

  Here is my code, I wanted a better way to replace section circle of the code.

  Basically, I can get programmatically the cluster name, but when the cluster wads, I can't figure out a way to do it programmatically inside the while loop: a loop on the number of items in the cluster and by placing values in the right place.

  

  Is it possible to do?

  Thank you very much

  Amine

  Altenbach says:

  If the cluster contains exactly three elements of the chain (nothing else!) and they are classified as in the node of your 'bundle by name", all you have to do is on the"table of cluster"output size 3 and it wire in a table build node (upper entrance wired to your array of cluster and botton imput cable to the new cluster) Wired output by the right side of the image).

  Here is a simplified illustration which simply sets the value of the label. (top image). Because the labels are defined at compile time, all you need is perhaps to get the names of once at the beginning of the program, and then use a range of simple string instead.

  Another possibility would be to use the reference to the element to set the value inside the loop, and then get the final cluster value later (at the bottom of the image).

  (There are some simplified examples. All you need is to replace the code that gets your new string instead.)

  

• Writing only to certain parts of the cluster in an array by reference

  Hello

  I have an array of clusters that I use as well to view and enter data, i.e. elements of the cluster are unmodifiable (disabled) controls used as indicators of "false" (numeric values, strings, LEDs) and some are normal witnesses (numerical values, buttons).

  The "indicator" part of this cluster table must be constantly updated (for example with the positions of the engines), normally by replacing the elements according to cluster in a loop and writing in the table. This can lead to conditions of race with the part 'control': If the user enters data in a 'bad' timing control, it gets immediately replaced by the old value - in this case the update process began just before the user input and completed just after the entrance of (which may be a simple click is enough) , so the old values of controls are rewritten on user controls, as the table should be rewritten as a whole.

  Now, I'm looking for a solution to this critical race condition without changing this 'mixed' approach of control/indicator (e.g. by control and indicator tables separated next to each other and paired scrolling or so - which would make it much more horrible GUI design, among other disadvantages). I know that it is possible to change the value of an element in the cluster without having to rewrite the entire cluster using the element reference. However, it's more complicated if you have an array of clusters, because you want the cluster to a certain index table and to my knowledge, there is no such property that gives you for example the reference to the item table located in an index of certain (who is a lack of long date in the table of Labview manipulation). If you change the 'value' of an element of the cluster property in a table, it seems to affect the 'last active' element of the array, at least it is correlated with the array element that was clicked on last. Maybe there's a way somehow programmatically set that ' last active ' array element and browse the table in this way (setting the flag "correspondent" elements of the cluster by reference) or maybe someone knows a solution 'Nice' and elegant?

  I hope you understand what I mean

  Thanks in advance!

  To avoid such conditions of race, make sure what you write on the Board in the same place change you and write only the data for the indicators. Practically, this means that if you have an event for the control change value, you must have another case of event in the same structure of update of the indicators (timeout or a user event) and make sure that the indicator event takes the rest of the data of the current value (for example through a terminal or a local variable or the DVR suggested Steve). Similarly, you can use the terminal control to the current value of the control for the indicators rather than depend on the event containing the correct value.

• Help with the cluster in table for the cluster size difference, please!

  I will admit to still hurt with the berries of LabVIEW, and as usual, the behavior in the vi attached is meaningless to me!  The attached vi shows a cluster 6 element being converted into a table, then immediately to a cluster.  The reconstructed cluster has 9 elements, even if the table size indicator display properly 6.  How to maintain the initial cluster size when converting to and then since then, a table?

  The f

  Well, if you have worked with context-sensitive help running you would see:

  "With the right button of the function and select the Size of Cluster in the context menu to set the number of items in the cluster."

  The default is new. The maximum cluster size for this function is 256. »

  You must set the size. There is no way for the function to know how many elements in the table.

• How can I configure my computer to the simple click with the mouse to double-click to open an item on the desktop instead

  How can I configure my computer to the simple click with the mouse to double-click to open an item on the desktop instead

  Hi placebow,

  Open the Options folder by clicking the Start button, clicking Control Panel, appearance and personalization, and then clicking Folder Options. On the general tab, click single-click to open an item. (To return to the standard click, click double-click to open an item.)

  The setting applies not only at the office, but also in other areas of the shell.
  Ramesh Srinivasan, Microsoft MVP [Windows Desktop Experience]

• Automator: using a text file to set several items from the finder?

  Hello

  what I would do:

  I have a text file that contains multiple entries for files and folders, each on a separate line. I want to dragndrop this file on an automator action, he should ask me a destination folder and then copy all the files and folders in this folder.

  I have my action, automator, set up like this:

  Elements of the open Finder

  Get the content of the TextEdit Document

  Copy to the Clipboard (I have not found another way to keep my text sort file values and let it not be crushed by the following, but it works)

  Quit the Application (TextEdit)

  Ask the Finder items (this requires a destination folder)

  Set the value of the Variable (Destination)

  Get the contents of the Clipboard

  Copies the items from the Finder (at Destination)

  It all works, but only when there is 1 entry in my text file. As soon as I have 2 lines of text, I get the following error message:

  The action "copy Finder items" has not provided with the required data.

  How can I make this work with multiple entries?

  The problem is that you only pass the only element to the copy action (you have copied text), instead of an element for each line (paragraph) in the text.  The solution is to use the action filter paragraphs to break up along the borders of paragraph text, which will give you a list of items.  In addition, you do not necessarily have to use TextEdit or the Clipboard - If you already have a file somewhere, you can simply use the action to combine text files to read the text.

  With the above modifications, your workflow should look like:

  Ask the Finder items  (ask for a destination folder)

  Set the value of the Variable  (Destination)

  Ask the Finder items  (Download text files) - set the action to ignore the entry

  Combine text files  (read the text files)

  Filter paragraphs  (paragraphs which are not empty return)

  Copy the items to the Finder  (at Destination)

• How to set the cluster error in postexpression?

  Hello

  I created a c language #-driver that returns a 0 for the pass or - 1 for failure in the functions 'int MyFunction().

  Now I use this function for teststeps.

  Question is: How can I use this returnvalue to set the cluster error?

  So that one - 1 causes an error.

  I think it can be done somehow in the post expression.

  How can I put a

  If (returnvalue == - 1).

  {

  Result.Error.Code = 10100

  Result.Error.Msg = "an error has occurred."

  Result.Error.Occured = True

  }

  Thanks for help

  Hi OnlyOne,

  Check out this example (stored in TS4.0)

  The tower is done using a breakets conditional and literal.

  Locals.nReturnValue is-1? {Step.Result.Error.Code = 10100, Step.Result.Error.Msg = "Error occurred", Step.Result.Error.Occurred = True}: {}

  Concerning

  Jürgen

• If I rearrange items in a cluster typedef will all beams and separate also be rearranged?

  I have a fairly large project that is more and more big and I need to add some more to my cluster type-def. I want to reorganize the cluster, mainly for cleanliness but also so similar thing are grouped. If I do this will each bundle by name and ungroup by name also be re-ordered? Or do I go through each subvi and fix all the broken wires and the clusters that are now connected to the wrong items manually?

  If you are using only group by name and unbundled by name, you don't have any problems. I did it several times. I always generally work by using a project if the screws are loaded, but I did it even in the case when the elements are not responsible and have not run into any problems. If you use the Basic Pack and unbundle you can run into trouble. BTW, I certainly have not be as careful as nathand.

• How to determine the index of an item in a cluster?

  I have a small program that I put in place, as I'm just trying to get up to speed on Labview.  I have a boolean cluster buttons and for some reason the top button of the page is coming through as Index 3.  There are four buttons in the cluster, but for some reason, there has been a change.  The top must be Index 0.  How to do the things fixed?  I do not see how to determine the index of each button through properties.

  Thank you

  The order of items in a cluster is the same as the order that you added them. To change the order, just right click and select "rearrange controls in the group. If you use Unbundle by name, you don't care the order.