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• Visual studio asp.net code behind file not showing errors

  - by Mahesh

  Hi, I am developing a web application in which I am suddenly facing an issue. I have a webpage which contains many controls, one of the control is JQuery color picker. Now, I am upgrading my system with telerik controls. As part of this process, I replaced textbox(txtcolor) with radcolorpicker with a different id(colorPicker). Suddenly, my code behind file is not throwing any errors like 'unable to find txtColor'. It is running successfully without build errors. But, when I open the page, system is throwing runtime exception(txtColor not found) which is correct. I tried to change other controls with asp.net controls, still the problem persists. So, I dont think it is anything to do with telerik. Could you please let me know how can fix this issue?? Thanks, Mahesh

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• Rails: blank page - no errors or stack trace

  - by Nathan Long

  I've been trying to fix a bug in the Rails app I'm developing, and I keep getting a blank screen with no errors. I haven't found anything helpful in development.log, either (though it does show queries being run and such). Finally, I started to wonder if it's somehow set not to show errors anymore. I tried commenting out a necessary route, and sure enough, I got a blank page instead of the error and stack trace I expected. What might cause this? (I wondered if maybe I'm accidentally running production mode and errors aren't supposed to show then, but development.log is being appended, and if I open script/console and echo ENV['RAILS_ENV'], it says development.)

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• Want to load jquery dialog from a different web-page

  - by Jake

  I'm a bit of a n00b with jquery so this one is probably an RTFM question: I'm writing an application to create a somewhat complex record for my client. Building the record requires doing a couple of server side searches inside a dialog. Right now I have everything framed up in 1 file (asp.net) and it's ok. But I can see as I add the business logic and the communication with the server this is going to get really ugly. I'm alreay putting most of the javascript in external files, but I'd like to move the HTML for the dialogs out too. How do I get the jquery dialog method to load the dialog body from the html files? Something like: getDialogHTML(dialogHolderDiv); <---magic goes here var dialogOptions = { ... }; $("#"+dialogHolderDiv).dialog(dialogOptions); $("#"+dialogHolderDiv).dialog('open'); any help will be apperciated .

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• DROP TABLE fails for temp table

  - by StarBright

  I have a client application that creates a temp table, the performs a bulk insert into the temp table, then executes some SQL using the table before deleting it. Pseudo-code: open connection begin transaction CREATE TABLE #Temp ([Id] AS int) bulk insert 500 rows into #Temp UPDATE [OtherTable] SET [Status]=0 WHERE [Id] IN (SELECT [Id] FROM #Temp) AND [Group]=1 DELETE FROM #Temp WHERE [Id] IN (SELECT [Id] FROM [OtherTable] WHERE [Group]=1) INSERT INTO [OtherTable] ([Group], [Id]) SELECT 1 as [Group], [DocIden] FROM #Temp DROP TABLE #Temp COMMIT TRANSACTION CLOSE CONNECTION This is failing with an error on the DROP statement: Cannot drop the table '#Temp', because it does not exist or you do not have permission. I can't imagine how this failure could occur without something else going on first, but I don't see any other failures occurring before this. Is there anything that I'm missing that could be causing this to happen?

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• UserControl Behaviour on a Windows Form

  - by AK

  Hi, I have a usercontrol UC1 with a combobox and a button. From the constructor, after initializing all the controls, I am populating the combobox with an array of information brought from other class library. I have kept the UC1 on windows form. When I tried to open the form's designer I see some errors and a suggestion to rebuild to fix the errors. After searching over net I found that the logic of populating the combobox is the culprit. I changed the code with an additional check of null and the issue is fixed now. My question is, how am i able to see the same usercontrol seperatly in designer view, but not when i placed the UC1 on a form and trying to see the designer view for the form? The same combobox populating logic should affect the drawing of UC1 when I try to see it in designer view right? Thanks, AK.

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• Dealing with Unity's Global Menu and Overlay Scrollbars under Free Pascal/Lazarus

  - by Gustavo Carreno

  I've had some problems under the IDE that were fixed with unsettings and disabling Global menu and the Overlay Scrollbars. I've reported the problem in Lazarus' Mantis: #0021465, #0021467. There is also this bug report talking a bit more about it: #0019266 Their solution was to use unsettings to turn off Global Menu and Overlay Scrollbars. I've had a quick search about the problem and there's an open bug report at Launchpad: overlay scrolling is broken in lazarus. So, is the problem related to "lib overlay scrollbar"? If it is, is there a solution via code, to avoid turning off both the Global Menu and Overlay Scrollbars? If NOT, is there anyone taking notice and fixing the issue? Many thanks, Gus

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• Piping SoX in Python - subprocess alternative?

  - by Cochise Ruhulessin

  I use SoX in an application. The application uses it to apply various operations on audiofiles, such as trimming. This works fine: from subprocess import Popen, PIPE kwargs = {'stdin': PIPE, 'stdout': PIPE, 'stderr': PIPE} pipe = Popen(['sox','-t','mp3','-', 'test.mp3','trim','0','15'], **kwargs) output, errors = pipe.communicate(input=open('test.mp3','rb').read()) if errors: raise RuntimeError(errors) This will cause problems on large files hower, since read() loads the complete file to memory; which is slow and may cause the pipes' buffer to overflow. A workaround exists: from subprocess import Popen, PIPE import tempfile import uuid import shutil import os kwargs = {'stdin': PIPE, 'stdout': PIPE, 'stderr': PIPE} tmp = os.path.join(tempfile.gettempdir(), uuid.uuid1().hex + '.mp3') pipe = Popen(['sox','test.mp3', tmp,'trim','0','15'], **kwargs) output, errors = pipe.communicate() if errors: raise RuntimeError(errors) shutil.copy2(tmp, 'test.mp3') os.remove(tmp) So the question stands as follows: Are there any alternatives to this approach, aside from writing a Python extension to the Sox C API?

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• Black background while copying image from Firefox

  - by Eduardo Mauro

  An image is copied from Firefox into the Clipboard. My program gets it from clipboard and saves as a JPEG image. For some reason the image is saved with a black background. If I open the same URL in IE and copy the image into the Clipboard, the image is saved correctly by my program. I am using Delphi 7. I also tried to copy the image from Firefox into Microsoft Paint and again the black background. Does anyone has a tip in how to handle such problem.

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• Visual Studio Multi-Targeting (maintaing backwards compatability)

  - by Phillip Benages

  I know in Visual Studio 2008 you can target a specific framework with your projects, but from what I have been told if you open a project originally created in Visual Studio 2003 or 2005 in Visual Studio 2008, it requires you to upgrade the project to a 2008 project to work on it. Does Visual Studio 2010 have this same type of restriction for multi-targeting? It would be very nice being able to use features of 2010 when working in our projects that target different frameworks, but we do not want to force all of our developers to upgrade in order to continue working in these projects.

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• How to catch FTP errors? e.g., socket.error: [Errno 10060]

  - by Johnson

  I'm using the ftplib module to upload files: files = [ a.txt , b.txt , c.txt ] s = ftplib.FTP(ftp_server , ftp_user , ftp_pw) # Connect to FTP for i in range(len(files)): f = open(files[i], 'rb') stor = 'stor ' + files[i] s.storbinary(stor, f) f.close() # close file s.quit() # close ftp How do I catch the following error? socket.error: [Errno 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond And what other errors are common when using the FTP module that I should also catch? Thanks for any help or pointers.

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• Light-weight client/server DB?

  - by OverTheRainbow

  Hello, (This question falls between programming and finding a tool, so I guess I'll ask here in SO since it has more activity than SuperUser.) I like the simplicity of SQLite, but by design, it doesn't support concurrent access. The apps I write don't have heavy needs, so I'd like to avoid heavier solutions like MySQL that are more difficult to deploy (remote customers with usually no computer personnel). Does someone know of a good solution that would offer the following features? Client available for VB.Net applications The server itself doesn't have to be a .Net application. Actually, I'd rather a bare-metal server so that it can run even on embedded Linux hosts with less RAM/CPU than regular PC's Easy install: the client part should either be statically linked inside the client application or be available as a single DLL, and the server should just be a single EXE listening for queries, à la Fossil (http://www.fossil-scm.org) clients can locate the server on the LAN by broadcasting data picked up by the server, so users don't have to write down the IP address and paste it into each client open-source, or moderately priced closed-source Thank you.

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• NetBeans 6.8/6.7 UML Class Diagrams

  - by ikurtz

  i have tried to generate Class Diagrams in NetBeans 6.7 and 6.8 but all i get is: i figured out installing UML for 6.8 here: NetBeans 6.8 UML i have followed the instructions here: UML Class diagrams i so far i failed to generate anything meaningful. i have followed the tips: Open your project, then create a new UML project (choose "Reverse Engineered Java-Platform model"). After that all your classes will be available in the UML project under "Model". You can now create a new class diagram and drag your classes from "Model" onto the diagram. but nothing meaningful happens when i drag my classes to the Class Diagrams. it always represents the classes as "datatype" on the diagram and class info is not displayed. any helpful tips regarding how can i fix this? or another way of generating Java class diagrams? thank you for your time.

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• Keycodes of function keys with F-lock off?

  - by ak

  Many recent keyboard from Microsoft and Logitech have a so-called F-Lock key, which toggles the function keys F1 to F12 between their traditional keycodes and new meanings that are printed onto the keys: F1=Help F2=Undo F3=Redo F4=Open ... . (See also http://en.wikipedia.org/wiki/F-Lock.) This means that long-established shortcuts such as Alt+F4 no longer work if the F-lock is off, and googling shows that quite a few people are unhappy about this. So I'm wondering, what virtual key (VK) codes do the function keys send when F-lock is off? VK_F13 to VK_F24 perhaps? Or do they not trigger standard keyboard events at all? (I haven't got such a keyboard to try and find out myself, and didn't manage to dig up anything on MSDN about this.)

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• UISearchbar clearButton forces the keyboard to appear

  - by DASKAjA

  I have a UISearchBar which acts as a live filter for a table view. When the keyboard is dismissed via endEditing:, the query text and the gray circular "clear" button remain. From here, if I tap the gray "clear" button the keyboard reappears as the text is cleared. How do I prevent this? If the keyboard is not currently open I want that button to clear the text without reopening the keyboard. There is a protocol method that gets called when I tap the clear button. But sending the UISearchBar a resignFirstResponder message doesn't have any effect on the keyboard.

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• Windows 7 Task Scheduler

  - by Btibert3

  Hi All, Very new to this, and I have no idea where to start. I want to schedule a python script using Task Scheduler in Windows 7. When I add a "New Action", I place the following command as the script/program : c:\python25\python.exe As the argument, I add the full path to the location of my python script path\script.py Here is my script: import datetime import csv import os now = datetime.datetime.now() print str(now) os.chdir('C:/Users/Brock/Desktop/') print os.getcwd() writer = csv.writer(open("test task.csv", "wb")) row = ('This is a test', str(now)) writer.writerow(row) I got an error saying the script could not run. Any help you can provide to get me up and running will be very much appreciated! Thanks, Brock

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• Streaming server required with JW Player?

  - by Aaron

  Currently, a site I developed plays mp3 files directly in JW Player using the file attribute and public URLs to the mp3 file. This is now an issue with the client for legal reasons, and they now need to stream the audio files so that the users can't open up their cache and nab the files directly after downloading. The JW player site has a bunch of examples for streaming video, but nothing for audio. Is it possible to stream audio files with JW player, and do we have to pay a lot of money for a streaming provider? Is it possible to do on the local php server?

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• How to find missing web part ?

  - by Leonidius

  Does anybody know how to find offending web part which causes this error ? “A Web Part or Web Form Control on this Web Part Page cannot be displayed or imported because it is not registered on this site as safe.” I have inherited an old SharePoint 2003 portal site which uses custom web parts. I know what this error means. I also know that each web part must be installed and registred as safe in web.config. The problem is that I don't know which one is missing. I get same error when I'm trying to open the page in FrontPage as well.

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• How to avoid SQLiteException locking errors

  - by TheArchedOne

  I'm developing an android app. It has multiple threads reading from and writing to the android SQLite db. I am receiving the following error: SQLiteException: error code 5: database is locked I understand the SQLite locks the entire db on inserting/updating, but these errors only seems to happen when inserting/updating while I'm running a select query. The select query returns a cursor which is being left open quite a wile (a few seconds some times) while I iterate over it. If the select query is not running, I never get the locks. I'm surprised that the select could be locking the db.... is this possible, or is something else going on? What's the best way to avoid such locks? Thanks TAO

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• PendingIntent from notification and application history conflicts

  - by synic

  I'm creating a notification with something similar to the following: Intent ni = new Intent(this, SomeActivity.class); ni.putExtra("somestring", "somedata"); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, ni, PendingIntent.FLAG_UPDATE_CURRENT|PendingIntent.FLAG_ONE_SHOT); Context context = getApplicationContext(); notification.setLatestEventInfo(context, res.getString(R.string.app_name), text, contentIntent); The key here is the extra data on the Intent for the notification. Once I click on the notification and it brings up SomeActivity, it brings up the activity and the extra data is available. However, if I exit the app, hold the home button until the recent activities list comes up, and choose to open the app again, the extra data is still passed. Is there a way I can make this data get passed only if the app is opened via the Notification, and not from the recent activities list?

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• transfer files with ftp with ftpwebrequest

  - by Dejan.S

  Hi. currently I'm working on this ftp transfer. http://msdn.microsoft.com/en-us/library/ms229715.aspx I have setup my server computers iis to have a ftp site on port 21 and transfering files works great. But I want to add ftp to a hosted site I got on the server and it's here where I get the problems with connecting. when I try to connect through the command promt I get unknown host error. I have changed the port and open it up in firewall. and even if I could connect how can I decide what folder I want to upload to?

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• What is best practice with SQLite and Android ?

  - by PHP_Jedi

  What is considered "best practice" when executing queries on a sql-lite db within an android app. Is it safe to run inserts, deletes and select queries from an AsyncTask's doInBackground ? Or should I use the UI Thread ? I suppose that db queries can be "heavy" and should not use the UI thread as it can lock up the app - resulting in an ANR. If I have several AsyncTasks, should they share a connection or should they open a connection each ? Any best practices in this area on android?

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• MD5 file processing

  - by Ric Coles

  Good morning all, I'm working on an MD5 file integrity check tool in C#. How long should it take for a file to be given an MD5 checksum value? For example, if I try to get a 2gb .mpg file, it is taking around 5 mins+ each time. This seems overly long. Am I just being impatient? Below is the code I'm running public string getHash(String @fileLocation) { FileStream fs = new FileStream(@fileLocation, FileMode.Open); HashAlgorithm alg = new HMACMD5(); byte[] hashValue = alg.ComputeHash(fs); string md5Result = ""; foreach (byte x in hashValue) { md5Result += x; } fs.Close(); return md5Result; } Any suggestions will be appreciated. Regards

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• When giving DataSource to a BindingSource shows only the cachedList Items.

  - by gtas

  I have a BindingSource on a form with MyObject Datasource. I Open another form and passing MyObject where i give its EntitySetObject reference to another BindingSource. Everything ok. Deleting an Entity on EntitySetObject reference and closing the form with EndEdit(). OK. Back in the "First" form i add one Entity in MyObject.EntitySetObject and again opening the form. But i have noticed that when giving the datasource to the BindingSource i have 2 items in cachedlist and 3 entities. Control now shows only the 2 cached items. Any Idea?

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• IE7 is not positioning dialog properly on window resize

  - by Ergec

  Like I said, IE7 (and IE6 but I don't really care IE6 that much) doesn't position dialog properly on window resize. When window is re sized, dialog goes down and down. IE8 FF Chrome Safari all work properly and position and re size dialog just fine but IE7 it re sizes the dialog but positions incorrectly. Anybody know some fix about this? $("#mydialog").dialog({ autoOpen: false, bgiframe: true, resizable: false, modal: true, title: "", height: 400, overlay: { backgroundColor: '#000', opacity: 0.5 } }); $(window).resize(function(){ $('#mydialog').dialog("option", "height", $(window).height() - 40); $('#mydialog').dialog('option', 'position', 'center'); }); $("#mydialog").dialog("open");

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• Finisar SQLite Problem with ParameterDirection

  - by Emanuel

  private int GetNextId() { SQLiteConnector conn = new SQLiteConnector(false); conn.OpenConnection(); cmd = new SQLiteCommand("SELECT @id_account = MAX(id_account) FROM account"); SQLiteParameter param = new SQLiteParameter("@id_account", DbType.Int32); param.Direction = ParameterDirection.Output; cmd.Parameters.Add(param); cmd = conn.ExecuteReadeOutput(cmd); conn.Close(); return int.Parse(cmd.Parameters["id_account"].Value.ToString()) + 1; } ... public SQLiteCommand ExecuteReadeOutput(SQLiteCommand cmd) { conn.Open(); cmd.Connection = conn; reader = cmd.ExecuteReader(); reader.Close(); return cmd; } When I call the method GetNextId() occur the following error: Specified argument was out of the range of valid values. at line: param.Direction = ParameterDirection.Output; Any idea? Thanks.

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