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                                                   How to close downloader programaticaly after run

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chaz
2011-11-13 18:14:51


Hi QS team,
I want to run downloader few times a day.
the script for the task manager starts it O.K.
However, when downloader finishes download it stays open & next run is blocked.
App.Main.Quit() is not available to be used in downloader prescript.

Is there any other function that can be used in downloader to close/exit it once it completes the run?

Let me know,

Thx,
Chaz



QuantShare
2011-11-14 05:32:25

  0

What do you mean by "next run is blocked" ?


chaz
2011-11-14 07:32:01

  0


Here is my script that is used to start downloader by QS Task mgr.

var SleepInterval : int = 60000; //in milisec
var NoOfScans : int = 5; // to cover 9.30 -16.00 = 390min
for (var i : int = 1; i < NoOfScans; i++ )
{
Downloader.StartDownloader("fDaily");
App.Main.Sleep(SleepInterval);
}

First loop goes fine, but Download Manager window is popped up, opens "fDaily" status window and waits for user to close.

after 1min sleep FOR loop is attemptingg to run "fDaily" again but notification pops out:
" You have to check at lease one raw"
and wailts for manual input in Downloader Manager "fDaily" status window.

If I do not check one item or close the previous run status window it will not execute subsequent runs.




to select the



QuantShare
2011-11-14 09:42:16

  0

Best Answer
Try the following line:

Downloader.DownloadData("", "fDaily", true, null, null);

instead of "Downloader.StartDownloader"



chaz
2011-11-14 19:27:58

  0

I tried it. I was working but still opening Downloader Mgr & prompting for input.
When I changed 3rd parameter to 'false' - Downloader.DownloadData("", "fDaily", false, null, null);
and restared QS main it is working fine & not prompting for input.

Many thanks,
Chaz



QuantShare
2011-11-15 02:29:37

  0

If you set the 3rd parameter to 'true' then the dialog box (downloading data...) will not be displayed.


chaz
2011-11-15 14:26:49

  0

Yes, after the restart of the QS main it works quitely when using:
Downloader.DownloadData("", "fDaily", false, null, null);
It solved my previous problems.

Many thanks again,

Chaz



Obuli Govindaraju
2011-11-30 11:43:48

  0

Downloader.DownloadData("", "Daily Stock Quotes", true, null, null);

When I run the above on the 2.5.3 I get an error popup that says

Script:<script name>
Value cannot be null
Parameter name: collection



chaz
2011-11-30 18:18:23

  0

Obuli,
I had the same problem in 2.5.2 .
It looks that that call works in some situations (ie when I wasn't making http calls & was using symbol list from external file it was O.K.).

I wanted to run it in the background from a scheduled script.
Hence, to overcome it in the script written using JScript I created a String[] array containing list of symbols to download and pass it to the call
ex.:
var slist1 : String[] = [
"A","ADBE","APA","APC","AXP","ATVI","AKAM","AMGN","ALXN","APOL","BIDU","BBBY","BIIB","BRCM","BTU","BA","BGZ","BGU","BMC","CAT","CELG","CHKP","CHK","CMCSA","COST","CPL","CTRP","CTSH","CTXS","CVX"]


Downloader.DownloadData("","downloader_name", true, slist, null);

That I run as ascheduled task & it works quitely in the background once scheduler of Task Manager 'kicks" it in.

Regards,
Chaz






QuantShare
2011-12-01 10:13:25

  0

To run this downloader for all symbols:

Symbol[] symbols1 = Symbols.GetSymbols();
string[] symbols = new string[symbols1.Length];
for(int i=0;i < symbols1.Length;i++)
{
symbols[i] = symbols1[i].Name;
}
Downloader.DownloadData("", "Daily Stock Quotes", true, symbols, null);



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