Writing to a text file in SDCard

Hello

I want to write text to a file in the SD card. Below is the code I wrote:

public EditField editfield.

public String filepath="file:///SDCard/BlackBerry/documents/Test.txt;

Thanks for all!

Succsessfully written the text file data entered in the edit field.

Kind regards

Pounet

Tags: BlackBerry Developers

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Control of the authorization of sharing when writing to a text file

I have several application that writes a file of text defined in a file share. Another application, not a LabVIEW application then reads the delimited text file. When my application is creating or writing to the file text delimited, is there a way to manipulate the permissions so that no other application can read the file at the same time, I am writing to you in the file? I can do this in Visual Basic through the FileShare (http://msdn.microsoft.com/en-us/library/system.io.fileshare(v=vs.110).aspx) option during the creation of filestream, but I don't see this option in LabVIEW. Thank you.

Too bad. I believe that this is possible thanks to the function of "deny access".

[Beginner] LabVIEW 2010: Vi 'Writing on a text file' overwrite an existing file rather than add new data

Hello

I want to write data to a text file. Don't ask me why, I have to use the vi 'Write in the text file' and not 'write in a measurement file. Everyone do in my office.

The point is that when I use the vi, the file is always overwritten, if I want to add data in the same file. See attachment for a view of my program. Obviouly, I'm trying to find an option in the property, but no... I sent the vi outside the lopp, but it does not work

Oddly, it works very well with Labview 2009 but not Labview 2010

Someone has an idea?

Thank you for all

See exhibit attached - open the file, move it to the end, write the text, close the file.

You can also write at the beginning of the file, or to jobs in the middle.

Ian

need to adapt the string values when writing to a text file

Hello

I have problem by lining up all of the data in wise coloumn. the output is (see attachment). I'm trying to solve this problem, but seems to be difficult. help please...

1 error in writing on a text - installer with Application Builder file

I wrote an installer using the Application Builder to install the runtime engine that allows any computer without LabVIEW to run an .exe program. Setup runs and installs engine race and then as a .exe VI. When it is done installing, the .exe VI opens automatically.

An error appears when the .exe opens and says "1 error in writing to a text file". If the user clicks on the error that it can run the program without problem, it converts file formats in a file .lvm. Automatically, it generates a new file name and saves the file in the same directory, but with a different name.

Why did it only happen when opening first upward? The program tries to run when it automatically opens? Is there a file path residual left in the program that trys to run first, before that the user put his own file path in the program?

I am semi new to labVIEW (a few months) and that nothing shows that would create this error at the beginning of the program.

Thank you

Hi Scott,.

Well, you could model a little VI and turn on debugging highlighted to test your idea!

THINK THE STREAM!

How a Boolean entry should WAIT for the action of the user? It should be read according to the stream!

What this small pseudo-code:
```
REPEAT

  Wait (50ms)

Until the button
```
Or how about an event in the user queue structure?

Error 1 has occurred to writing to text file

Hey there!

I tried to write a VI that takes some steps to some specific period of time and then save it in a text file. But I get an error indicating that the input parameter is not valid in writing to a text file. This always happens in the second round of the loop. I've attached screenshots.

Thanks in advance.

You close the file at the end of the loop and you never open it again. Move the close file outside of the loop (after him).

UTL_FILE text file writing
Dear all,

I use the UTL_FILE to write a text file.
```
C:=sample.txt;
F := UTL_FILE.FOPEN('EX',C,'W');
for I in C1 LOOP
UTL_FILE.PUT_LINE(F,
                  I.1||'|'||
                  I.2||'|'||
                  I.3||'|'||
                  I.4||'|'||
                  I.5);
                  UTL_FILE.FFLUSH(F);
end LOOP;
 utl_file.fclose(f);
end;
{CODE}

When i open the txt file in Notepad , The data coming in the single line with some enter key ( Carriage val)
```
sample:
1233 | 1111 | 1111 | 1111 (square box) 1222 | 1111 | 1111 | 1111 (square box) 1211 | 1111 | 1111 | 1111

How to remove the key enter during the writing of the text file. Or any other solution to get a notebook for the sub file condition
```
Result needed.
1233|1111|1111|1111
1222|1111|1111|1111
1211|1111|1111|1111
```
Thanks in advance.

See you soon,.
San.
Your database server is likely to be Unix or Linux, right? Which means that it uses a single character (LF) to "new line", rather than Windows that use two characters (CR - LF) to 'new line '.
(If you open your file with WordPad instead of NotePad it will probably look OK.)

UTL_FILE. Put_line uses as a "new line" everything that uses the o/s database server.

So if you want to write a file to be used specifically in Windows, you can make your own "new line" rather than using the servers.
Use PUT rather than PUT_LINE and simply add the two characters that Windows uses to "new line":
```
UTL_FILE.PUT(F,
                  I.1||'|'||
                  I.2||'|'||
                  I.3||'|'||
                  I.4||'|'||
                  I.5|| CHR(13) || CHR(10) );
```

How can I correct D 0 and 0 get replaced by 0D 0a in the written text file?

Hello

I'm using LabVIEW 2009. As I am currently using LabVIEW for my diploma, I'd appreciate any help on my problem. So here's my problem:

The VI I wrote it constantly reads data out of a VISA Serial Port and the string obtained is saved in a text via "writing text file.vi" file (The "write to the binary" produces additional data (for the most part, 00 s) I don't want to have in my data.) But when I open the text file and try to analyze the data that each instance of 0a or 0D is replaced by 0D 0. If the data is already 0D 0 what would not be affected.

Does anyone have a solution for this problem?

Thank you for taking the time to read my question...

What happens if you do a right click of the 'writing on a text file' and uncheck the box "convert EOL?

Need help: UTL_FILE read and write in the text file
Hello, I'm on version 11 GR 2 by using the UTL_FILE function to read a text file and then write the lines where it starts with the word "foo" and put an end to my writing in the text file where the line with the word "ZEN". Now I have several lines that begin with 'foo' and 'ZEN' allow a paragraph, and in this paragraph, there is a line that begins with "DE4.2". Therefore,.
I need to write all of the paragraphs that include the "DE4.2" line in their beginning and end of lines 'foo' and 'ZEN '.

FOR EXAMPLE:

FOO/234E53LLID
IT'S MY SECOND LINE
IT'S MY THIRD LINE
DE4.2 IT OF MY FOURTH LINE
IT'S MY FIFTH LINE
ZEN/DING3434343

FOO/234E53LLID
IT'S MY SECOND LINE
IT'S MY THIRD LINE
IT'S MY FIFTH LINE
ZEN/DING3434343

I'm only interested in writing the first paragraph tha includes line DE4.2 in one of the paragraph of lines not the second ther that does not include the "DE4.2".

Here is my code so far:

CREATE OR REPLACE PROCEDURE my_app2 IS
Utl_file.file_type INFILE;
outfile utl_file.file_type;
buffer VARCHAR2 (30000);
b_paragraph_started BOOLEAN: = FALSE; -flag to indicate which required paragraph is started

BEGIN
-Open a file to read
INFILE: = utl_file.fopen ('TEST_DIR', 'mytst.txt', 'r');
-Opens a file for writing
outfile: = utl_file.fopen ('TEST_DIR', "Out.txt", "w");

-Check the file is open
IF utl_file.is_open (infile)
THEN
-lines in the file in loop
LOOP
BEGIN
UTL_FILE.get_line (infile, buffer);
APPLICATION STARTING POINT-
Buffer IF LIKE 'foo %' THEN
b_paragraph_started: = TRUE;
END IF;
-SEARCH FOR GRADS APPS
IF b_paragraph_started AND buffering LIKE '% 4% ' THEN
UTL_FILE.put_line (outfile, buffer, FALSE);
END IF;
-REQUEST FOR ENDPOINT
Buffer IF LIKE '% ZEN' THEN
b_paragraph_started: = FALSE;
END IF;
UTL_FILE.fflush (outfile);

EXCEPTION
WHEN no_data_found THEN
EXIT;
END;
END LOOP;
END IF;
UTL_FILE.fclose (INFILE);
UTL_FILE.fclose (outfile);
EXCEPTION
WHILE OTHERS THEN
raise_application_error ("-20099, ' UTL_FILE unknown error");
END my_app2;
/

When I run this code I get only one line: DE4.2 it ME LACK THE WHOLE PARAGRAPH

PLEASE ADVISE...
I agree with reservations of Justin on the length of a "paragraph" and the number of users that are running at the same time, so here is a version without the collections.
```
CREATE or replace PROCEDURE my_app2 IS
   infile utl_file.file_type;
   outfile utl_file.file_type;
   buffer VARCHAR2(30000);
   b_paragraph_started BOOLEAN := FALSE; -- flag to indicate that required paragraph is started
   b_toprint BOOLEAN := FALSE;
   l_para_start pls_integer;  -- start of "paragraph"
BEGIN
   infile := utl_file.fopen('TEST_DIR', 'mytst.txt', 'r');
   outfile := utl_file.fopen('TEST_DIR', 'out.txt', 'w');
   LOOP
      BEGIN
         utl_file.get_line(infile, buffer);
         IF buffer LIKE 'FOO%' THEN
            b_paragraph_started := TRUE;
            l_para_start := UTL_FILE.FGETPOS(infile) - (length(buffer) + 1);
         END IF;
         IF b_paragraph_started and buffer like '%DE4%' THEN
            b_toprint := TRUE;
         END IF;
         If buffer like 'ZEN%' THEN
            IF b_toprint THEN
               UTL_FILE.FSEEK(infile, l_para_start);
               utl_file.get_line(infile, buffer);
               while buffer not like 'ZEN%' loop
                  utl_file.put_line(outfile,buffer, FALSE);
                  utl_file.get_line(infile, buffer);
               end loop;
               utl_file.put_line(outfile,buffer, FALSE);
            end if;
            b_paragraph_started := FALSE;
            b_toprint := false;
            utl_file.fflush(outfile);
         end if;
      EXCEPTION
         WHEN no_data_found THEN
            EXIT;
         END;
   END LOOP;
   utl_file.fclose(infile);
   utl_file.fclose(outfile);
END my_app2;
```
Test:
```
SQL> !cat mytst.txt
FOO/234E53LLID
THIS IS MY SECOND LINE
THIS IS MY THIRD LINE
DE4.2 THIS IS MY FOURTH LINE
THIS IS MY FIFTH LINE
ZEN/DING3434343

FOO/234E53LLID
THIS IS MY SECOND LINE
THIS IS MY THIRD LINE
THIS IS MY FIFTH LINE
ZEN/DING3434343

FOO/234E53LLID again
THIS IS MY second SECOND LINE
THIS IS MY second THIRD LINE
DE4.2 THIS IS MY second FOURTH LINE
THIS IS MY second FIFTH LINE
ZEN/DING3434343 again

SQL> exec my_app2;

PL/SQL procedure successfully completed.

SQL> !cat out.txt
FOO/234E53LLID
THIS IS MY SECOND LINE
THIS IS MY THIRD LINE
DE4.2 THIS IS MY FOURTH LINE
THIS IS MY FIFTH LINE
ZEN/DING3434343
FOO/234E53LLID again
THIS IS MY second SECOND LINE
THIS IS MY second THIRD LINE
DE4.2 THIS IS MY second FOURTH LINE
THIS IS MY second FIFTH LINE
ZEN/DING3434343 again
```
You may need to change the length (buffer) + 1 depending on your platform and if you want a blank line s NLE out paragraphs, add another call to put_line after that outside of the loop in the fi l_toprint block.

John

Writing data in the text file or excel spreadsheet

Hello

I have a silly question to ask questions about the writing of data in a text file or a spreadsheet. I have an example that simulates a sine-swept DAQmx. The output it provides is the (amplitude and phase) frequency response function that is plotted on a graph (see VI) attached. I like to use these data for further analysis by transmitting the data to a text file or a spreadsheet. I've tried a few things, but the thread is broken. I guess I use the sink badly - so I was wondering, can you please advise me on what sink should I use?

Your help would be very appreciated,

Thank you very much

REDA

The wire is broken, because you cannot connect this type of data to one of these two functions. The data source type is a table 1 d of the clusters, where each cluster contains two tables. The text file write accepts strings, not clusters. Writing on a file action accepts dynamic data, and while you can convert dynamic data tables, there is no built-in mechanism to convert a table 1 d of the clusters of two matrices.

What you need to do is to convert the data in a format which can be accepted by these functions. Since you want to have a "spreadsheet" file then you should use writing to the spreadsheet file that creates a delimited text file. Since the frequency data would be the same for the plot of the magnitude and phase diagrams, you can have 3 columns: frequency, amplitude, and phase. You can take off the items using Unbundle by name, and then create a table 2D of each element of the cluster. The real question is to know if you want to save the data at each iteration and if you simply add on the file. The attached figure shows write an initial header and then adding just streaming the data.

Continous writing in the external text file

I'm trying to build a VI in labVIEW that will supply a decimal value based on a binary file to enter a box structure. The structure of the case will display a string value according to the decimal places of entry. The problem that I wrote the string value to a text file that will continue to write while the Vi is constantly running.

Here are a few suggestions (you'll learn a lot more if you try to do this yourself, instead of my giving you a 'solution').
- You have 8 Boolean commands. Consider making a table (size 8) Boolean controls (among other things, it does help group them for you).
- If you look at the range of Booleans, you will see a function of "array of numbers. Guess what that so "feed you" an array of Boolean 8... You can eliminate a lot of code by doing this.
- Your numbers are all integers, so it is not sensible to save as a double.
- You have a configured here While loop. What you think about quick check how it works? Do you care? Do you want to it is running "as fast as possible? Do you want it to run at a fixed speed (for example, a loop per second)? Do you want it runs 'when something happens?
- Good thing you have done, is recognize that the task of recording has three parts - Open (performed only once), Write (done as often as necessary) and closed (performed only once). You also correctly positioned the relevant functions before, inside and after the while loop. I'm not 100% certain it's important in this particular case, but usually when we done that and has a While loop, running on the same "variable" on several occasions, the wire is put in a shift instead of a pair of tunnels register. Even if it is not necessary here, it would be a good change to make, because it will be necessary in other cases.
I did not actually run your code, but do not see something terribly wrong with it. Try to make the changes I suggested (which will allow you to significantly reduce the size of your VI). Special attention to the question of the 'speed '. If you republish your "improved" VI (and thanks for posting it), you could describe a little better "the problem I have" - what do I do, or what he does not?

Bob Schor

Writing a single line of numbers in a text file or write several lines each iteration?

Hello

I am currently working on an application that has a few different time-loops at the same time. A single loop acquires data (DAQloop), another shows the data (raw and processed data) on graphs (Graphsloop) and another stores data in an open (Storageloop) ascii text file.

The data is passed to the DAQloop to the Storageloop through a queue. Now, I leave the Storageloop take the first element of the queue (oldest) to store in the text file each iteration. However, I was wondering if it would be better to let the Storageloop take all items currently available in the queue store at once.

Does anyone have ideas on this? Who better its? The text file is already open and is simply passed as a refnum.

THX!

With normal file primitives LabVIEW, you will get your best speed of disc when you write about 65 000 bytes of disk at once (or read, incidentally). When I write a similar code, I included a string buffer in the loop of Scripture. Whenever I get data to write, I add it to the chain. When the chain hits 65 000 bytes, I write to disk. You could break this into three loops, as well - a read buffer, and write. Depending on the current size of piece, you could see a change in the order of magnitude of the speed of disk write. This write operation is often limited by the conversion from binary to ASCII, not the disk i/o. If you do this, be careful with your buffer. You can get some serious slowdowns depending on how you implement it. This post has some details and examples.

Error code 1 when writing to text file

I have an error code 1 when I try to write to a text file in my application. Really, I don't understand and don't know how to solve this problem.

If anyone can help me please fix this, it would be greatly appreciated!

Do not close the file in the box 0. It closes only after your while loop ends. Keep your refnum file stored in a shift register.

My guess is that you open the file outside the while loop and you pass in the refnum and use it in the box 0. Then you close the file that kills the refnum. Then, you open the file again (possibly automatically with read) then close that. When you get to the enclosure 1, you use the same refnum you originally opened up to the outside, but that was closed and is now invalid.

High Score Table: writing a Simple with Flash and PHP text file

I'm having a problem getting Flash to work with PHP that I need Flash to read and write to a text file on a server to store data simple name partition for a games Hi score table. I can read the text file in Flash fairly easily, but I also have to write to the file when a new high score is reached, so I need to use PHP to do that. Can I send data from flash to php by POST file, but so far it does not. The PHP file is confirmed that the work that I added an echo in the file that displays a message to verify that the server is running PHP - files were also uploaded to a remote server so I could test them correctly. Flash code is as follows:
FileWriter php
var myLV = new LoadVars();
sendData() {} function
//sets variable 'hsdata' to send to php
myLV.hsdata = myText;
myLV.send ("hiscores.php");
}
I believe that it sends the variable "myText" in the php file in a variable called 'hsdata' I want the php file to write to a text file. The mytext variable is just a long chain that has all of the partitions and the names in the scores. OK, XML would be best way to do it, but for the speed, I want to just get the basic features of work, so store a shot of simple text is sufficient for now. The PHP code that reads the Flash variable "hsdata" and wrote for the "scores.txt" text file is due to:
<? PHP
sets the variable to the data posted from flash
$flashdata = $_POST ['hsdata'];
File Manager opens the file and clears all content with arg w
$fh = fopen ("scores.txt", "w");
Adds data to the file
fwrite ($fh, $flashdata);
closes the file
fclose ($fh);
echo "php file works;
? >
Any help with this would be greatly appreciated - once I get php to write text files simple I should be ok. Thank you.

var outLV = new LoadVars();

var inLV = new LoadVars();

sendData() {} function

outLV.hsdata = 'Hello from Flash';

outLV.sendAndLoad ("http://www.mysite.com/hiscores/test23.php", inLV,"POST");

}

inLV.onLoad = {function (success)}

If (success) {}

sets the dynamic text box to show the variable sent by php

statusTxt.text = this.phpmess;

} else {}

statusTxt.text = 'No Data Received';

}

};

It works well and function of inLV.onLoad of the reports it receives data, but does not display the variable received from PHP. The PHP file is like this:

<>

$mytxt = $_POST ['hsdata'];

$myfile = "test23.txt";

$fh = fopen ($myfile, 'w');

Adds data to the file

fwrite ($fh, $mytxt);

closes the file

fclose ($fh);

$mess = "Hello there php ';

echo "phpmess =". "." $mess;

?>

How to add data to a text file?

Hello

I want to add data to a previously created text file. When I used writing text file.vi. It replaces previous data.

Try to use the function "set position in the file" (file e/s palette, advanced functions) before writing the data.

either open the file, position set to finish, write the data, close the file.

Ian

Writing to a text file in SDCard

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