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• How to check a print job status with C#

  - by Saab

  I'm printing a PDF file by executing a commandline application from within my C# application. Now I wanna know when this job is printed. I was hoping there would be some kind of event I could subscribe to, and handle it. But I couldn't find it. So now I'm resorting to polling. And checking the JobStatus of a PrinterSystemJobInfo object. But in my case this either gives me JobStatus = None or JobStatus = Printing. PrinterSystemJobInfo.JobStatus Can someone tell me how to reliably check a print job status using C#?

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• Retrieving "invalid" value from a NumericUpDown Validating event

  - by alhazen

  When the user enters a value above numericUpDown.Maximum, the control's value is automatically set to the maximum. I'd like to display a MessageBox when this occurs, but I'm not able to do that because control.Value and control.Text already contain the automatically set value, maximum, when Validating event is raised. private void numericUpDown_Validating(object sender, System.ComponentModel.CancelEventArgs e) { NumericUpDown control = sender as NumericUpDown; decimal newValue = control.Value; // decimal newValue; // decimal.TryParse(control.Text, out newValue) if (newValue > control.Maximum || newValue < control.Minimum) { // MessageBox } } Thanks

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• Urllib's urlopen breaking on some sites (e.g. StackApps api)

  - by Edan Maor

  I'm using urllib2's urlopen function to try and get a JSON result from the StackOverflow api. The code I'm using: >>> import urllib2 >>> conn = urllib2.urlopen("http://api.stackoverflow.com/0.8/users/") >>> conn.readline() The result I'm getting: '\x1f\x8b\x08\x00\x00\x00\x00\x00\x04\x00\xed\xbd\x07`\x1cI\x96%&/m\xca{\x7fJ\... I'm fairly new to urllib, but this doesn't seem like the result I should be getting. I've tried it in other places and I get what I expect (the same as visiting the address with a browser gives me: a JSON object). Using urlopen on other sites (e.g. "http://google.com") works fine, and gives me actual html. I've also tried using urllib and it gives the same result. I'm pretty stuck, not even knowing where to look to solve this problem. Any ideas?

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• Why does this JSON fail only in iPhone?

  - by 4thSpace

  I'm using the JSON framework from http://code.google.com/p/json-framework. The JSON below fails with this error: -JSONValue failed. Error trace is: ( Error Domain=org.brautaset.JSON.ErrorDomain Code=5 UserInfo=0x124a20 "Unescaped control character '0xd'", Error Domain=org.brautaset.JSON.ErrorDomain Code=3 UserInfo=0x11bc20 "Object value expected for key: Phone", Error Domain=org.brautaset.JSON.ErrorDomain Code=3 UserInfo=0x1ac6e0 "Expected value while parsing array" ) JSON being parsed: [{"id" :"2422","name" :"BusinessA","address" :"7100 U.S. 50","lat" :"38.342945","lng" :"-90.390701","CityId" :"11","StateId" :"38","CategoryId" :"1","Phone" :"(200) 200-2000","zip" :"00010"}] I think 0xd represents a carriage. When I put the above JSON in TextWrangler, I don't see any carriage returns. I got the JSON by doing "po myjson" in the debugger. It passes this validator: http://json.parser.online.fr/. Can anyone see what the problem may be?

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• Send an email using python script

  - by nimmyliji

  Hi, Today I needed to send email from a Python script. As always I searched Google and found the following script that fits to my need. import smtplib SERVER = "localhost" FROM = "[email protected]" TO = ["[email protected]"] # must be a list SUBJECT = "Hello!" TEXT = "This message was sent with Python's smtplib." # Prepare actual message message = """\ From: %s To: %s Subject: %s %s """ % (FROM, ", ".join(TO), SUBJECT, TEXT) # Send the mail server = smtplib.SMTP(SERVER) server.sendmail(FROM, TO, message) server.quit() But when I tried to run the program, I got the following error message: Traceback (most recent call last): File "C:/Python26/email.py", line 1, in <module> import smtplib File "C:\Python26\lib\smtplib.py", line 46, in <module> import email.utils File "C:/Python26/email.py", line 24, in <module> server = smtplib.SMTP(SERVER) AttributeError: 'module' object has no attribute 'SMTP' How can i solve this problem? Any one can help me? Thanks in advance, Nimmy.

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• Understanding glm$residuals and resid(glm)

  - by Michael Bishop

  Hi, Can you tell me what is returned by glm$residuals and resid(glm) where glm is a quasipoisson object. e.g. How would I create them using glm$y and glm$linear.predictors. glm$residuals n missing unique Mean .05 .10 .25 .50 .75 .90 .95 37715 10042 2174 -0.2574 -2.7538 -2.2661 -1.4480 -0.4381 0.7542 1.9845 2.7749 lowest : -4.243 -3.552 -3.509 -3.481 -3.464 highest: 8.195 8.319 8.592 9.089 9.416 resid(glm) n missing unique Mean .05 .10 .25 37715 0 2048 -2.727e-10 -1.0000 -1.0000 -0.6276 .50 .75 .90 .95 -0.2080 0.4106 1.1766 1.7333 lowest : -1.0000 -0.8415 -0.8350 -0.8333 -0.8288 highest: 7.2491 7.6110 7.6486 7.9574 10.1932

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• Select TOP 5 * from SomeTable, using Dataview.RowFilter ?

  - by eugeneK

  I need to select 5 most recent rows from cached Dataview object, is there any way to do that? I've tried but Indexer DataColumn is empty. : public static DataView getLatestFourActive() { DataTable productDataTable = getAll().ToTable(); DataColumn ExpressionColumn = new DataColumn("Indexer",typeof(System.Int32)); ExpressionColumn.Unique = true; ExpressionColumn.AutoIncrement = true; ExpressionColumn.AllowDBNull = false; ExpressionColumn.AutoIncrementSeed = 0; ExpressionColumn.AutoIncrementStep = 1; productDataTable.Columns.Add(ExpressionColumn); DataView productFilteredView = productDataTable.DefaultView; productFilteredView.RowFilter = "isActive=1 and Indexer<4"; return productFilteredView; } getAll() returns cached DataView thanks

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• mvc presentation model best-practices

  - by Andrew Florko

  Hello, everybody How do you usually convert business objects to presentation? For example: Business object Person { Id, FirstName, LastName, Patronymic ... } should be presented as "LastName F. P. " in html layout. We use Presentation classes hierarchy to represent data ready for output from Business model. Questions: Will you keep presentation model completely separated from Business Model. For example, can strong-typed views (MVC ASP.NET) aggregate formatted business data as well as raw business objects (that leads toward <%=Html.Encode(PersonHelper.ToShort(Model.Person))% html layout injections) What architecture layer do you choose for conversion (mvc controllers that formats business data from business layer, for instance). Thank you in advance

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• Unable to load libsctp.so for non root user

  - by sankoz

  I have a Linux application that uses the libsctp.so library. When I run it as root, it runs fine. But when I run it as an ordinary user, it gives the following error: error while loading shared libraries: libsctp.so.1: cannot open shared object file: No such file or directory But, when I do ldd as ordinary user, it is able to see the library: [sanjeev@devtest6 src]$ ldd myapp ... ... libsctp.so.1 => /usr/local/lib/libsctp.so.1 (0x00d17000) [sanjeev@devtest6 src]$ ls -lL /usr/local/lib/libsctp.so.1 -rwxrwxrwx 1 root root 27430 2009-06-29 11:26 /usr/local/lib/libsctp.so.1 [sanjeev@devtest6 src]$ What could be wrong? How is the ldd is able to find libsctp.so, but when actually running the app, it is not able to find the same library?

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• Using DockPanel Suite's XML saving with My.Settings

  - by Cyclone

  In vb.net, how can I use SaveAsXML and LoadFromXML (DockPanel Suite functions) with My.Settings? I know there is a way to save it to a stream, but I don't know enough about System.IO to do this. DockPanel Suite: http://sourceforge.net/projects/dockpanelsuite/ I would very much prefer to store configuration using My.Settings instead of as an XML file. Thanks for the help! EDIT: Since the only person to answer so far has since deleted their answer, I feel I should explain further: Those two methods can both accept a stream object, but I have not used System.IO enough to know how to properly initialize a stream, let alone get a string out of a stream. EDIT: Googling has gotten me nowhere. EDIT: Still waiting for this. I've tried everything...

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• JAXB: @XmlTransient on third-party or external super class

  - by Phil

  Hi, I need some help regarding the following issue with JAXB 2.1. Sample: I've created a SpecialPerson class that extends a abstract class Person. Now I want to transform my object structure into a XML schema using JAXB. Thereby I don't want the Person XML type to appear in my XML schema to keep the schema simple. Instead I want the fields of the Person class to appear in the SpecialPerson XML type. Normally I would add the annotation @XmlTransient on class level into the Person code. The problem is that Person is a third-party class and I have no possibility to add @XmlTransient here. How can I tell JAXB that it should ignore the Person class without annotating the class. Is it possible to configure this externally somehow? Have you had the same problem before? Any ideas what the best solution for this problem would be?

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• i am facing some problem while passing parameter to crystal report? it is asking for the password of

  - by Gaurav Sharma

  protected void Page_Load(object sender, EventArgs e) { ConnectionInfo myConnectionInfo = new ConnectionInfo(); myConnectionInfo.UserID = "sa"; myConnectionInfo.Password = "********"; setDBLOGONforREPORT(myConnectionInfo); //When i don't write this code it does not ask for the passowrd //but doesn't take Parameter as value int recpt_no = Convert.ToInt32(Request.QueryString["recpt_no"]); ReportDocument report1 = new ReportDocument(); //report1.SetDatabaseLogon("sa", "********"); report1.Load(Server.MapPath("purchase.rpt")); report1.FileName = Server.MapPath("purchase.rpt"); report1.SetParameterValue("recpt_no", recpt_no); CrystalReportViewer1.ReportSource = report1; } private void setDBLOGONforREPORT(ConnectionInfo myconnectioninfo) { TableLogOnInfos mytableloginfos = new TableLogOnInfos(); mytableloginfos = CrystalReportViewer1.LogOnInfo; foreach (TableLogOnInfo myTableLogOnInfo in mytableloginfos) { myTableLogOnInfo.ConnectionInfo = myconnectioninfo; } } kindly Help me as soon as possible respt_no is passed as querysting Gaurav Sharma

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• mouse wheel scrolling work with f5 in app but don't work on web

  - by lina

  Good day! I have a web application on Silverlight 3. on ManePage I have a <ScrollViewer x:Name="sV" MouseWheel="sV_MouseWheel" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"> with such code: private void sV_MouseWheel(object sender, MouseWheelEventArgs e) { var offset = sV.VerticalOffset; sV.ScrollToVerticalOffset(offset + (e.Delta * -0.5)); } When I press F5 button to debug my application, mouse wheel scrolling works well, but when I press F6 and then choose Web.Project prperty Debug-Start New Instance or publish my project on site, mouse wheel scrolling doesn't work :( what can I do?

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• iPhone Foundation - performance implications of mutable and xxxWithCapacity:0

  - by Adam Eberbach

  All of the collection classes have two versions - mutable and immutable, such as NSArray and NSMutableArray. Is the distinction merely to promote careful programming by providing a const collection or is there some performance hit when using a mutable object as opposed to immutable? Similarly each of the collection classes has a method xxxxWithCapacity, like [NSMutableArray arrayWithCapacity:0]. I often use zero as the argument because it seems a better choice than guessing wrongly how many objects might be added. Is there some performance advantage to creating a collection with capacity for enough objects in advance? If not why isn't the function something like + (id)emptyArray?

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• How do I set the jax-ws client request timeout programatically on jboss?

  - by Jonas Andersson

  I am trying to set the request (and connection) timeout for a jax-ws-webservice-client generated with the jaxws-maven-plugin. When running my app under tomcat or jetty the timeout works, but when deployed under jboss it doesn't "take". private void setRequestAndConnectionTimeout(Object wsPort) { String REQUEST_TIMEOUT = BindingProviderProperties.REQUEST_TIMEOUT; // "com.sun.xml.ws.request.timeout"; ((BindingProvider) wsPort).getRequestContext().put(REQUEST_TIMEOUT, timeoutInMillisecs); ((BindingProvider) wsPort).getRequestContext().put(JAXWSProperties.CONNECT_TIMEOUT, timeoutInMillisecs); } What is the correct way to do this for JBoss?

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• Add WhereParameters to LinqDataSource in Selecting event

  - by Steven

  I have a repeater using a LinqDataSource as a data source. When a query string is entered, I'd like to filter the results, but ONLY when a query string is entered. If there is no query string, the results should not be filtered, all results should be returned. I'm trying to add a WhereParameter to my LinqDataSource in the Selecting event of the LinqDataSource, but it's not working. Here's my code: protected void ldsImages_Selecting(object sender, LinqDataSourceSelectEventArgs e) { if (Request.QueryString["id"] != null) { e.WhereParameters.Add("ImageTypeID", Request.QueryString["id"]); } }

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• How do I track down the source of a KVC exception: this class is not key value coding-compliant for

  - by sam

  I get this error when I try to run my app: 2010-04-29 13:49:01.355 MyApp[56123:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<MyViewController 0x5112b10> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key toolbar.' MyViewController used to have an IBOutlet called 'toolbar' that connected to a UIToolbar object in a nib. I decided I no longer needed the toolbar or the nib so I removed them from the project. But Xcode seems to still want to refer to 'toolbar'. Where might the reference to toolbar be if I no longer use a nib? I can synthesize a dummy 'toolbar' property to appease Xcode, but I want to avoid this kind of ugly hack.

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• How to reflect in the database a new belongs_to and has_many relationship in Ruby on Rails

  - by Ken I.

  I am new to rails (usually a python guy) and have just been trying to build a simple task manager application for fun. I am using Devise for authentication and have a single Task object I am trying to relate to a user. I have added the following to the Task model: class Task < ActiveRecord::Base belongs_to :user end and I have added the following in my User model for Devise: class User < ActiveRecord::Base has_many :dreams <<normal Devise stuff>> end Whenever I added this information I then ran: rake db:migrate. It then gave me an error that the database field did not exist for user_id when I tried to do anything with it. I am sure it is something rather simple that I am missing. Thanks for the help.

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• Can dummy objects be simulated on iphone?

  - by Mike

  I come from 3D animation and one of the basic things all 3D software have is the ability to create dummy objects. Dummy objects can be used to groups objects that can be rotated, moved or scaled together around a specific anchor point. This is the idea of what I am asking. Obviously we can have fake dummies by using a view and put other views as subviews, but this has problems as the view receives clicks and sometimes you don't want it to do so. You cannot change the anchorpoint of a view too. So, the dummies as I ask have, at least, these properties: adjustable anchor point it is not clickable it is totally invisible (cannot be rendered). any scale, rotation and translation of a dummy are propagated to the grouped objects considering the dummy's anchor point. it is totally animatable. Can this be simulated on iPhone? Is there any object that can be created to simulate this? thanks.

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• How can I set up .NET UnhandledException handling in a Windows service?

  - by Mike Pateras

  protected override void OnStart(string[] args) { AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); Thread.Sleep(10000); throw new Exception(); } void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e) { } I attached a debugger to the above code in my windows service, setting a breakpoint in CurrentDomain_UnhandledException, but it was never hit. The exception pops up saying that it is unhandled, and then the service stops. I even tried putting some code in the event handler, in case it was getting optimized away. Is this not the proper way to set up unhandled exception handling in a windows service?

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• Using COM to open Word

  - by chupinette

  Hello! I am actually trying some codes i found from http://php.net/manual/en/class.com.php <?php // starting word $word = new COM("word.application") or die("Unable to instantiate Word"); echo "Loaded Word, version {$word->Version}\n"; //bring it to front $word->Visible = 1; //open an empty document $word->Documents->Add(); //do some weird stuff $word->Selection->TypeText("This is a test..."); $word->Documents[1]->SaveAs("Useless test.doc"); //closing word $word->Quit(); //free the object $word = null; ?> But this does not seem to work. I am using Word 2007 and i get the following: Loaded Word, version 12.0 Fatal error: Call to undefined method variant::SaveAs() in C:\xampp\htdocs\final\testq.php on line 14 Can anyone solve this problem? Is it because i am using Word 2007?

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• Actual note duration from MIDI duration

  - by Anthony Labarre

  I'm currently implementing an application to perform some tasks on MIDI files, and my current problem is to output the notes I've read to a LilyPond file. I've merged note_on and note_off events to single notes object with absolute start and absolute duration, but I don't really see how to convert that duration to actual music notation. I've guessed that a duration of 376 is a quarter note in the file I'm reading because I know the song, and obviously 188 is an eighth note, but this certainly does not generalise to all MIDI files. Any ideas?

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• Ruby for Rails: underfined method 'name ' for #<Array:0xb6c971cc>

  - by erwin

  Hi, I want to display the column 'name' after being found from the table mytest. In the mytest.rb, I defined "attrib_accessor :name"; In the procedure index under directory /controller/mytest_controller.rb, def index .....###[Ignore some code] @[email protected]_by_id ### I am able to verify the tuples in @mytesttbl end In the /view/mytest/index.rhtml, I have code like "mytesttbl", :object = @mytesttbl)% In the /view/mytest/_mytesttbl.html.erb. I have code like <%=mytesttbl.name % when I ran the above code, I have error on _mytesttbl.html.erb, underfined method 'name ' for # Please help. Thanks,

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• VB.NET: How to know time for which system is idle?

  - by Daredev

  I'm making an application in which I'm implementing auto-monitor turn off when system is idle, i.e. when user is not interacting with the system. I found a link: http://www.codeproject.com/KB/system/SystemIdleTimerComponent.aspx it does provides the componenent to know when system is idle. But when I include: Public WM_SYSCOMMAND As Integer = &H112 Public SC_MONITORPOWER As Integer = &Hf170 <DllImport("user32.dll")> _ Private Shared Function SendMessage(hWnd As Integer, hMsg As Integer, wParam As Integer, lParam As Integer) As Integer End Function Private Sub button1_Click(sender As Object, e As System.EventArgs) SendMessage(Me.Handle.ToInt32(), WM_SYSCOMMAND, SC_MONITORPOWER, 2) End Sub It shows this error: Cross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.

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• Superfluous python parameters

  - by Leif Andersen

  I've noticed a discrepancy in the way that python parameters are called. In every other language I've dealt with, you either have foo() meaning either no parameters, or as many parameters as you like, or foo(arg1, arg2,...,argn) where you pass in the same number of parameters to define the function and call it. In python however, I've noticed that the function definitions, and when the function is called, can have two different parameters sets, this usually consists of: class foo(object): def bar(self, arg1, arg2): pass However, when I want to call the function, all I have to do is: zoo = foo() zoo.bar(arg1, arg2) Where did the self parameter go? Thank you.

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