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• android: problem sending mail, SuperNotCalledException thrown

  - by MobileDev123

  Hi, While sending mail from a button's click my device shows an error. Which throws SuperNotCalledException in logcat I am posting the code and the logcat output here. Code Intent emailIntent = new Intent( android.content.Intent.ACTION_SEND); emailIntent.setType("text/plain"); String recosubject = getString(R.string.recoSub); emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "" + recosubject); emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, "" + reco); startActivity(Intent.createChooser(intent, "Send mail...")); And here is the logcat output Uncaught handler: thread main exiting due to uncaught exception 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): android.app.SuperNotCalledException: Activity {android/com.android.internal.app.ChooserActivity} did not call through to super.onCreate() 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2461) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.os.Handler.dispatchMessage(Handler.java:99) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.os.Looper.loop(Looper.java:123) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at android.app.ActivityThread.main(ActivityThread.java:4367) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at java.lang.reflect.Method.invokeNative(Native Method) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at java.lang.reflect.Method.invoke(Method.java:521) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 12-29 15:29:14.488: ERROR/AndroidRuntime(6823): at dalvik.system.NativeStart.main(Native Method) Can anybody tell what is going wrong in this code?

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• How can I get this week's dates in Perl?

  - by ABach

  I have the following loop to calculate the dates of the current week and print them out. It works, but I am swimming in the amount of date/time possibilities in Perl and want to get your opinion on whether there is a better way. Here's the code I've written: #!/usr/bin/env perl use warnings; use strict; use DateTime; # Calculate numeric value of today and the # target day (Monday = 1, Sunday = 7); the # target, in this case, is Monday, since that's # when I want the week to start my $today_dt = DateTime->now; my $today = $today_dt->day_of_week; my $target = 1; # Create DateTime copies to act as the "bookends" # for the date range my ($start, $end) = ($today_dt->clone(), $today_dt->clone()); if ($today == $target) { # If today is the target, "start" is already set; # we simply need to set the end date $end->add( days => 6 ); } else { # Otherwise, we calculate the Monday preceeding today # and the Sunday following today my $delta = ($target - $today + 7) % 7; $start->add( days => $delta - 7 ); $end->add( days => $delta - 1 ); } # I clone the DateTime object again because, for some reason, # I'm wary of using $start directly... my $cur_date = $start->clone(); while ($cur_date <= $end) { my $date_ymd = $cur_date->ymd; print "$date_ymd\n"; $cur_date->add( days => 1 ); } As mentioned, this works, but is it the quickest or most efficient? I'm guessing that quickness and efficiency may not necessarily go together, but your feedback is very appreciated.

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• Python - Checking for membership inside nested dict

  - by victorhooi

  heya, This is a followup questions to this one: http://stackoverflow.com/questions/2901422/python-dictreader-skipping-rows-with-missing-columns Turns out I was being silly, and using the wrong ID field. I'm using Python 3.x here. I have a dict of employees, indexed by a string, "directory_id". Each value is a nested dict with employee attributes (phone number, surname etc.). One of these values is a secondary ID, say "internal_id", and another is their manager, call it "manager_internal_id". The "internal_id" field is non-mandatory, and not every employee has one. (I've simplified the fields a little, both to make it easier to read, and also for privacy/compliance reasons). The issue here is that we index (key) each employee by their directory_id, but when we lookup their manager, we need to find managers by their "internal_id". Before, when employee.keys() was a list of internal_ids, I was using a membership check on this. Now, the last part of my if statement won't work, since the internal_ids is part of the dict values, instead of the key itself. def lookup_supervisor(manager_internal_id, employees): if manager_internal_idis not None and manager_internal_id!= "" and manager_internal_id in employees.keys(): return (employees[manager_internal_id]['mail'], employees[manager_internal_id]['givenName'], employees[manager_internal_id]['sn']) else: return ('Supervisor Not Found', 'Supervisor Not Found', 'Supervisor Not Found') So the first question is, how do I check whether the manager_internal_id is present in the dict's values. I've tried substituting employee.keys() with employee.values(), that didn't work. Also, I'm hoping for something a little more efficient, not sure if there's a way to get a subset of the values, specifically, all the entries for employees[directory_id]['internal_id']. Hopefully there's some Pythonic way of doing this, without using a massive heap of nested for/if loops. My second question is, how do I then cleanly return the required employee attributes (mail, givenname, surname etc.). My for loop is iterating over each employee, and calling lookup_supervisor. I'm feeling a bit stupid/stumped here. def tidy_data(employees): for directory_id, data in employees.items(): # We really shouldnt' be passing employees back and forth like this - hmm, classes? data['SupervisorEmail'], data['SupervisorFirstName'], data['SupervisorSurname'] = lookup_supervisor(data['manager_internal_id'], employees) Thanks in advance =), Victor

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• How can I get contentWindow for an Object element in IE7

  - by Scott Leis

  I have a HTML object element like this: <object title="Search results as XML" standby="Loading XML document..." type="text/xml" data="/__CA25761100195585.nsf/WebPrintListingXML?OpenAgent&date1=01/06/2009" width="100%" height="100%" border="0" name="resultIFrame" id="resultIFrame" Error: could not embed search results. </object I also have this javascript function (alert() calls added for debugging): function getFrameByName(fParent,fName) { var fArray=fParent.frames; if (!fName) return; if (fArray) { if (fArray.length) { for (var i=0; i<fArray.length; i++) { alert('loop '+i); if (fArray[i]) { if (fArray[i].name==fName) return fArray[i]; } } } } var tmp=document.getElementsByName(fName); if (tmp[0]) { alert('returning '+tmp[0]); if (!(tmp[0].contentWindow)) alert('contentWindow is null'); return tmp[0].contentWindow; } } And finally, this button is meant to print the content of the Object element: <input type="button" value="Print" name="printBtn" onclick="getFrameByName(window,'resultIFrame').print();" The button works perfectly in Firefox. Opera is good enough, though it prints the main document instead of just the object. IE7 gives the following error details: Line: 57 Char: 1 Error: 'undefined' is null or not an object Line 57 is where the button's "input" tag starts in the HTML source. Thanks to the alert('contentWindow is null') call in the JS function, I know that the object I'm getting in IE has no contentWindow property. I have tried changing the object tag to an iframe tag. This changes the JS behaviour, but causes other issues such as the height attribute being ignored and the content not displaying. Sticking with an object tag, how can I get this Object's window in IE7?

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• How to get associated URLRequest from Event.COMPLETE fired by URLLoader

  - by matt lohkamp

  So let's say we want to load some XML - var xmlURL:String = 'content.xml'; var xmlURLRequest:URLRequest = new URLRequest(xmlURL); var xmlURLLoader:URLLoader = new URLLoader(xmlURLRequest); xmlURLLoader.addEventListener(Event.COMPLETE, function(e:Event):void{ trace('loaded',xmlURL); trace(XML(e.target.data)); }); If we need to know the source URL for that particular XML doc, we've got that variable to tell us, right? Now let's imagine that the xmlURL variable isn't around to help us - maybe we want to load 3 XML docs, named in sequence, and we want to use throwaway variables inside of a for-loop: for(var i:uint = 3; i > 0; i--){ var xmlURLLoader:URLLoader = new URLLoader(new URLRequest('content'+i+'.xml')); xmlURLLoader.addEventListener(Event.COMPLETE, function(e:Event):void{ trace(e.target.src); // I wish this worked... trace(XML(e.target.data)); }); } Suddenly it's not so easy, right? I hate that you can't just say e.target.src or whatever - is there a good way to associate URLLoaders with the URL they loaded data from? Am I missing something? It feels unintuitive to me.

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• What is the Proper approach for Constructing a PhysicalAddress object from Byte Array

  - by Paul Farry

  I'm trying to understand what the correct approach for a constructor that accepts a Byte Array with regard to how it stores it's data (specifically with PhysicalAddress) I have an array of 6 bytes (theAddress) that is constructed once. I have a source array of 18bytes (theAddresses) that is loaded from a TCP Connection. I then copy the 6bytes from theAddress+offset into theAddress and construct the PhysicalAddress from it. Problem is that the PhysicalAddress just stores the Reference to the array that was passed in. Therefore if you subsequently check the addresses they only ever point to the last address that was copied in. When I took a look inside the PhysicalAddress with reflector it's easy to see what's going on. public PhysicalAddress(byte[] address) { this.changed = true; this.address = address; } Now I know this can be solved by creating theAddress array on each pass, but I wanted to find out what really is the best practice for this. Should the constructor of an object that accepts a byte array create it's own private Variable for holding the data and copy it from the original Should it just hold the reference to what was passed in. Should I just created theAddress on each pass in the loop

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• How to read data from file(.dat) in append mode

  - by govardhan

  We have an application which requires us to read data from a file (.dat) dynamically using deserialization. We are actually getting first object and it throws null pointer exception and "java.io.StreamCorruptedException:invalid type code:AC" when we are accessing other objects using a "for" loop. File file=null; FileOutputStream fos=null; BufferedOutputStream bos=null; ObjectOutputStream oos=null; try{ file=new File("account4.dat"); fos=new FileOutputStream(file,true); bos=new BufferedOutputStream(fos); oos=new ObjectOutputStream(bos); oos.writeObject(m); System.out.println("object serialized"); amlist=new MemberAccountList(); oos.close(); } catch(Exception ex){ ex.printStackTrace(); } Reading objects: try{ MemberAccount m1; file=new File("account4.dat");//add your code here fis=new FileInputStream(file); bis=new BufferedInputStream(fis); ois=new ObjectInputStream(bis); System.out.println(ois.readObject()); **while(ois.readObject()!=null){ m1=(MemberAccount)ois.readObject(); System.out.println(m1.toString()); }/*mList.addElement(m1);** // Here we have the issue throwing null pointer exception Enumeration elist=mList.elements(); while(elist.hasMoreElements()){ obj=elist.nextElement(); System.out.println(obj.toString()); }*/ } catch(ClassNotFoundException e){ } catch(EOFException e){ System.out.println("end"); } catch(Exception ex){ ex.printStackTrace(); }

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• Cocoa Touch: Creating and Adding Custom View

  - by Jason

  I create a custom view in cocoa touch that is superclassed by UIView and in my main controller I initialize it and then add it as a subview to the main view, but when I add it to the main view it calls my initializer method again and causes an infinite loop. Am I going about creating my custom view wrong? Here is the mainView (void)loadView { UIImage *tempImage = [UIImage imageNamed: @"image1.jpg"]; CustomImageContainer *testImage = [[CustomImageContainer alloc] initWithImage: tempImage andLabel: @"test image" onTop: true atX: 10 atY: 10]; [self.view addSubview: testImage]; } and the CustomImageContainer -(CustomImageContainer *) initWithImage: (UIImage *)imageToAdd andLabel: (NSString *)text onTop: (BOOL) top atX: (int) x_cord atY: (int) y_cord{ UIImageView *imageview_to_add = [[UIImageView alloc] initWithImage: imageToAdd]; imageview_to_add.frame = CGRectMake(0, 0, imageToAdd.size.width, imageToAdd.size.height); UILabel *label_to_add = [[UILabel alloc] init]; label_to_add.text = text; label_to_add.alpha = 50; label_to_add.backgroundColor = [UIColor blackColor]; label_to_add.textColor = [UIColor whiteColor]; [self addSubview: imageview_to_add]; self.frame = CGRectMake(x_cord, y_cord, imageToAdd.size.width, imageToAdd.size.height); if (top) { label_to_add.frame = CGRectMake(0, 0, imageview_to_add.frame.size.width, imageview_to_add.frame.size.height); //[self addSubview: label_to_add]; } else { label_to_add.frame = CGRectMake(0,.2 * imageview_to_add.frame.size.height, imageview_to_add.frame.size.width, imageview_to_add.frame.size.height); } [self addSubview: label_to_add]; [super init]; return self; }

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• rails Rake and mysql ssh port forwarding.

  - by rube_noob

  Hello, I need to create a rake task to do some active record operations via a ssh tunnel. The rake task is run on a remote windows machine so I would like to keep things in ruby. This is my latest attempt. desc "Syncronizes the tablets DB with the Server" task(:sync => :environment) do require 'rubygems' require 'net/ssh' begin Thread.abort_on_exception = true tunnel_thread = Thread.new do Thread.current[:ready] = false hostname = 'host' username = 'tunneluser' Net::SSH.start(hostname, username) do|ssh| ssh.forward.local(3333, "mysqlhost.com", 3306) Thread.current[:ready] = true puts "ready thread" ssh.loop(0) { true } end end until tunnel_thread[:ready] == true do end puts "tunnel ready" Importer.sync rescue StandardError => e puts "The Database Sync Failed." end end The task seems to hang at "tunnel ready" and never attempts the sync. I have had success when running first a rake task to create the tunnel and then running the rake sync in a different terminal. I want to combine these however so that if there is an error with the tunnel it will not attempt the sync. This is my first time using ruby Threads and Net::SSH forwarding so I am not sure what is the issue here. Any Ideas!? Thanks

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• Quick MVC2 checkbox question

  - by kevinmajor1

  In order to get my EF4 EntityCollection to bind with check box values, I have to manually create the check boxes in a loop like so: <p> <%: Html.Label("Platforms") %><br /> <% for(var i = 0; i < Model.AllPlatforms.Count; ++i) { %> <%: Model.AllPlatforms[i].Platform.Name %> <input type="checkbox" name="PlatformIDs" value="<%: Model.AllPlatforms[i].Platform.PlatformID %>" /><br /> <% } %> </p> It works, but it doesn't automatically populate the group of check boxes with existing values when I'm editing a model entity. Can I fudge it with something like? <p> <%: Html.Label("Platforms") %><br /> <% for(var i = 0; i < Model.AllPlatforms.Count; ++i) { %> <%: Model.AllPlatforms[i].Platform.Name %> <input type="checkbox" name="PlatformIDs" value="<%: Model.AllPlatforms[i].Platform.PlatformID %>" checked=<%: Model.GameData.Platforms.Any(p => PlatformID == i) ? "true" : "false" %> /><br /> <% } %> </p> I figure there has to be something along those lines which will work, and am just wondering if I'm on the right track. EDIT: I'm purposely staying away from MVC's check box HTML helper methods as they're too inflexible for my needs. My check boxes use integers as their values by design.

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• Using django and django-voting app, how can I order a queryset according to the votes of each item?

  - by snz3

  (I'm new to python and django so please bear with me for a second. I apologise if this has been answered elsewhere and couldn't find it) Let's say I have a Link model and through the django-voting application users can vote on link instances. How can I order those link instances according to their score, eg. display those with the higher score first. I assume I could use the get_top manager of django-voting, but that would only give me the top scoring link instances and wouldn't take into consideration other parameters I would like to add (for example, those links that belong to a specific user or paging or whatever). My guess would be to write a custom manager for my Link model where by I can filter a queryset according to each item's score. If I understand correctly that will require me to loop through each item, check its score, and then place it a list (or dictionary) which will then be sorted according to the score of each item. That wouldn't return a queryset but a dictionary with each item. Am I missing something here?

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• Reduce function calls

  - by Curious2learn

  Hello, I profiled my python program and found that the following function was taking too long to run. Perhaps, I can use a different algorithm and make it run faster. However, I have read that I can also possibly increase the speed by reducing function calls, especially when it gets called repeatedly within a loop. I am a python newbie and would like to learn how to do this and see how much faster it can get. Currently, the function is: def potentialActualBuyers(setOfPeople,theCar,price): count=0 for person in setOfPeople: if person.getUtility(theCar) >= price and person.periodCarPurchased==None: count += 1 return count where setOfPeople is a list of person objects. I tried the following: def potentialActualBuyers(setOfPeople,theCar,price): count=0 Utility=person.getUtility for person in setOfPeople: if Utility(theCar) >= price and person.periodCarPurchased==None: count += 1 return count This, however, gives me an error saying local variable 'person' referenced before assignment Any suggestions, how I can reduce function calls or any other changes that can make the code faster. Again, I am a python newbie and even though I may possibly be able to use a better algorithm, it is still worthwhile learning the answer to the above question. Thanks very much.

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• is back_insert_iterator<> safe to be passed by value?

  - by afriza

  I have a code that looks something like: struct Data { int value; }; class A { public: typedef std::deque<boost::shared_ptr<Data> > TList; std::back_insert_iterator<TList> GetInserter() { return std::back_inserter(m_List); } private: TList m_List; }; class AA { boost::scoped_ptr<A> m_a; public: AA() : m_a(new A()) {} std::back_insert_iterator<A::TList> GetDataInserter() { return m_a->GetInserter(); } }; class B { template<class OutIt> CopyInterestingDataTo(OutIt outIt) { // loop and check conditions for interesting data // for every `it` in a Container<Data*> // create a copy and store it for( ... it = ..; .. ; ..) if (...) { *outIt = OutIt::container_type::value_type(new Data(**it)); outIt++; // dummy } } void func() { AA aa; CopyInterestingDataTo(aa.GetInserter()); // aa.m_a->m_List is empty! } }; The problem is that A::m_List is always empty even after CopyInterestingDataTo() is called. However, if I debug and step into CopyInterestingDataTo(), the iterator does store the supposedly inserted data!

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• Initializing objects on the fly

  - by pocoa

  I have a vector called players and a class called Player. And what I'm trying to do is to write: players.push_back(Player(name, Weapon(bullets))); So I want to be able to create players in a loop. But I see an error message says "no matching function for call Player::Player..." Then I've changed that to: Weapon w(bullets); Player p(name, w); players.push_back(p); Here is my Player definition: class Player { public: Player(string &name, Weapon &weapon); private string name; Weapon weapon; } I'm just trying to learn what is the difference between these definitions. And is this the right way to pass an object to an object constructor. Note: These are not my actual class definitions. I'm just trying to learn something about object oriented programming in C++ with coding it. I mean I know that Weapon should be initialized in Player :)

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• Recursion in prepared statements

  - by Rob

  I've been using PDO and preparing all my statements primarily for security reasons. However, I have a part of my code that does execute the same statement many times with different parameters, and I thought this would be where the prepared statements really shine. But they actually break the code... The basic logic of the code is this. function someFunction($something) { global $pdo; $array = array(); static $handle = null; if (!$handle) { $handle = $pdo->prepare("A STATEMENT WITH :a_param"); } $handle->bindValue(":a_param", $something); if ($handle->execute()) { while ($row = $handle->fetch()) { $array[] = someFunction($row['blah']); } } return $array; } It looked fine to me, but it was missing out a lot of rows. Eventually I realised that the statement handle was being changed (executed with different param), which means the call to fetch in the while loop will only ever work once, then the function calls itself again, and the result set is changed. So I am wondering what's the best way of using PDO prepared statements in a recursive way. One way could be to use fetchAll(), but it says in the manual that has a substantial overhead. The whole point of this is to make it more efficient. The other thing I could do is not reuse a static handle, and instead make a new one every time. I believe that since the query string is the same, internally the MySQL driver will be using a prepared statement anyway, so there is just the small overhead of creating a new handle on each recursive call. Personally I think that defeats the point. Or is there some way of rewriting this?

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• Easy way to lock a file on a remote machine (windows)?

  - by roufamatic

  I've tracked down an error in my logs, and am trying to reproduce it. My theory is that a file sometimes gets locked in a specific folder, and when the application (ASP.NET) tries to delete that folder it hangs. I don't have the application running on my own machine so I'm debugging this on a remote server. But for the life of me, I can't seem to figure out a way to lock a file that prevents it from being deleted by the process. My first thought was to map the network path to a local drive and just leave a command prompt open to that folder. Locally that always fouls up my folder deletes, but apparently SMB is a bit more robust and doesn't grant me a lock. After that I created an infinte loop vbscript in the folder and executed it remotely. The file was deleted out from underneath the executing code. Man! I then tried creating a file on the server in that folder and removing all permissions. That didn't do the trick. I don't have access to the IIS settings so perhaps it's running under a privileged system account. So: what's a program that you know is free and I can quickly use to create an exclusive lock on a file so I can test my delete theory? Like a really, really bad Notepad clone or something. :-)

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• Exporting WPF DataGrid to a text file in a nice looking format. Text file must be easy to read.

  - by Andrew

  Hi, Is there a simple way to export a WPF DataGrid to a text file and a .csv file? I've done some searching and can't see that there is a simple DataGrid method to do so. I have got something working (barely) by making use of the ItemsSource of the DataGrid. In my case, this is an array of structs. I do something with StreamWriters and StringBuilders (details available) and basically have: StringBuilder destination = new StringBuilder(); destination.Append(row.CreationDate); destination.Append(seperator); // seperator is '\t' or ',' for csv file destination.Append(row.ProcId); destination.Append(seperator); destination.Append(row.PartNumber); destination.Append(seperator); I do this for each struct in the array (in a loop). This works fine. The problem is that it's not easy to read the text file. The data can be of different lengths within the same column. I'd like to see something like: 2007-03-03 234238423823 823829923 2007-03-03 66 99 And of course, I get something like: 2007-03-03 234238423823 823829923 2007-03-03 66 99 It's not surprising giving that I'm using Tab delimiters, but I hope to do better. It certainly is easy to read in the DataGrid! I could of course have some logic to pad short values with spaces, but that seems quite messy. I thought there might be a better way. I also have a feeling that this is a common problem and one that has probably been solved before (hopefully within the .NET classes themselves). Thanks.

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• How to send check boxes ID in gridview in one string for mass update.

  - by SmartDev

  hi , I have a grid which has check boxes and when selecting the top chek box select all will select all the check box in gridview and would update .for this im using for loop where it exceutes every time and this is taking lot of time cuase there are more thn 100 records in grid . try { string StrOutputMessageDisplayDocReqCsu = string.Empty; string strid = string.Empty; string strflag = string.Empty; string strSelected = string.Empty; for (int j = 0; j < GdvDocReqMU.Rows.Count; j++) { CheckBox Chkupdate = (CheckBox)GdvDocReqMU.Rows[j].Cells[1].FindControl("chkDR"); if (Chkupdate != null) { if (Chkupdate.Checked) { strid = ((Label)GdvDocReqMU.Rows[j].FindControl("lblIDDocReqCsu")).Text; strflag = ((Label)GdvDocReqMU.Rows[j].FindControl("lblStatusDocReqCsu")).Text; cmd = new SqlCommand("sp_Update_v1", con); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@id", strSelected); cmd.Parameters.AddWithValue("@flag", DdlStatusDocReqMU.SelectedValue); cmd.Parameters.AddWithValue("@notes", txtnotesDocReqMU.Text); cmd.Parameters.AddWithValue("@user", strUseridDRAhk); cmd.Parameters.Add(new SqlParameter("@message", SqlDbType.VarChar, 100, ParameterDirection.Output, false, 0, 50, "message", DataRowVersion.Default, null)); cmd.UpdatedRowSource = UpdateRowSource.OutputParameters; con.Open(); cmd.ExecuteNonQuery(); con.Close(); } } } //} //StrOutputMessageDisplayDocReqCsu += (string)cmd.Parameters["@message"].Value + "<br/>"; //lbldbmessDocReqAhk.Text += StrOutputMessageDisplayDocReqCsu + "<br>"; GetgridDocReq(); } catch (Exception ex) { lbldbmessDocReqAhk.Text = ex.Message.ToString(); }

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• InvalidCastException when getting Text from a Label referenced by dynamicaly built String, Fix?

  - by Chris

  NET Version: 3.5 Ok, I recieve an error (System.InvalidCastException was unhandled. Message="Unable to cast object of type 'System.Windows.Forms.Control[]' to type 'System.Windows.Forms.Label'.") when trying to get Text from a Label referenced by a dynamicly built string. Here's my situation; I have an array of 250 labels named l1 - l250. What I want to do is loop through them using this while statement: int c = 1; while (c < 251) { string k = "l" + c.ToString(); //dynamic name of Control(Label) object ka = Controls.Find(k, true); string ct = ((Label)ka).Text; //<<Error Occurs Here build = build + ct; c++; } and get the text value of each to build a string named build. I don't get any build errors, just this while debuging. While debuging I can go down to view my local variables. When looking through these, I can view the contents of object ka; it does contain the correct Text value of the correct Label I want to "access". I just don't understand how to get there. The text value is listed under "[0]" which is the only subcatagory for "ka".

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• sum not working properly abap

  - by Eva Dias

  I'm trying to sum up some values but it keeps giving me weird values. I'm posting the code to help, and an image too of what is happening. at end of kunnr. soma-waers = <fs_main-waers. soma-wrbtr = <fs_main-wrbtr. soma-fwste = <fs_main-fwste. soma-hwaer = <fs_main-hwaer. soma-dmbtr = <fs_main-dmbtr. soma-hwste = <fs_main-hwste. APPEND soma TO it_soma. LOOP AT it_soma INTO soma. IF sy-tabix = 1. FORMAT COLOR COL_TOTAL INTENSIFIED OFF. SUM. WRITE: "/ sy-uline(137), / sy-vline NO-GAP, 'Subtotal' NO-GAP, '-' NO-GAP, soma-waers, 63 sy-vline NO-GAP, 64 soma-wrbtr NO-GAP, sy-vline NO-GAP, soma-fwste NO-GAP, sy-vline NO-GAP, soma-hwaer NO-GAP, sy-vline NO-GAP, soma-dmbtr NO-GAP, sy-vline NO-GAP, soma-hwste NO-GAP, sy-vline NO-GAP, / sy-uline(137). ELSE. ENDIF. ENDLOOP. ENDAT.

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• Creating syncable Calendar in ICS

  - by user1390816

  I have a problem with creating a new Calendar in ICS. The Calendar should be synyable to the google Calendar. I try following: Uri calendarUri = CalendarContract.Calendars.CONTENT_URI; calendar.put(CalendarContract.Calendars.ACCOUNT_NAME, sync_account); calendar.put(CalendarContract.Calendars.ACCOUNT_TYPE, "com.google"); calendar.put(CalendarContract.Calendars.NAME, name); calendar.put(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME, displayName); calendar.put(CalendarContract.Calendars.CALENDAR_COLOR, 0xFF008080); calendar.put(CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL, CalendarContract.Calendars.CAL_ACCESS_OWNER); calendar.put(CalendarContract.Calendars.OWNER_ACCOUNT, true); calendar.put(CalendarContract.Calendars.VISIBLE, 1); calendar.put(CalendarContract.Calendars.SYNC_EVENTS, 1); calendarUri = calendarUri.buildUpon() .appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true") .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_NAME, sync_account) .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_TYPE, "com.google") // CalendarContract.ACCOUNT_TYPE_LOCAL .build(); Uri result = activity.getContentResolver().insert(calendarUri, calendar); an I get always this error: 09-17 17:11:30.278: E/AndroidRuntime(13243): FATAL EXCEPTION: CalendarSyncAdapterAccountMonitor 09-17 17:11:30.278: E/AndroidRuntime(13243): java.lang.IllegalArgumentException: the name must not be empty: null 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.accounts.Account.<init>(Account.java:48) 09-17 17:11:30.278: E/AndroidRuntime(13243): at com.google.android.syncadapters.calendar.CalendarSyncAdapter.onAccountsUpdated(CalendarSyncAdapter.java:1129) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.accounts.AccountManager$11.run(AccountManager.java:1279) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.Handler.handleCallback(Handler.java:605) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.Handler.dispatchMessage(Handler.java:92) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.Looper.loop(Looper.java:137) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.HandlerThread.run(HandlerThread.java:60) 09-17 17:11:30.293: E/android.os.Debug(1989): !@Dumpstate > dumpstate -k -t -n -z -d -o /data/log/dumpstate_app_error What can I do with the CalendarSyncAdapterAccountMonitor, that it is not empty? Thanks in advance.

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• How do I refactor code into a subroutine but allow for early exit?

  - by deworde

  There's a really obvious refactoring opportunity in this (working) code. bool Translations::compatibleNICodes(const Rule& rule, const std::vector<std::string>& nicodes) { bool included = false; // Loop through the ni codes. for(std::vector<std::string> iter = nicodes.begin(); iter != nicodes.end(); ++iter) { // Match against the ni codes of the rule if(rule.get_ni1() == *iter) { // If there's a match, check if the rule is include or exclude const std::string flag = rule.get_op1(); // If include, code is included unless a later rule excludes it if(flag == "INCLUDE"){ included = true; } // If exclude, code is specifically excluded else if(flag == "EXCLUDE"){ return false; } } if(rule.get_ni2() == *iter) { const std::string flag = rule.get_op2(); if(flag == "INCLUDE"){ included = true; } else if(flag == "EXCLUDE"){ return false; } } if(rule.get_ni3() == *iter) { const std::string flag = rule.get_op3(); if(flag == "INCLUDE"){ included = true; } else if(flag == "EXCLUDE"){ return false; } } if(rule.get_ni4() == *iter) { const std::string flag = rule.get_op4(); if(flag == "INCLUDE"){ included = true; } else if(flag == "EXCLUDE"){ return false; } } if(rule.get_ni5() == *iter) { const std::string flag = rule.get_op5(); if(flag == "INCLUDE"){ included = true; } else if(flag == "EXCLUDE"){ return false; } } } return included; } The problem is that I can't get around the problem that I want to exit early if it's an exclude statement. Note that I can't change the structure of the Rule class. Any advice?

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• Jquery click bindings are not working correctly when binding multiple copies

  - by KallDrexx

  I seem to have an issue when creating copies of a template and tying the .click() method to them properly. Take the following javascript for example: var list; // Loop through all of the objects var topics = data.objects; for (x = 0; x < objects.length; x++) { // Clone the object list item template var item = $("#object_item_list_template").clone(); // Setup the click action and inner text for the link tag in the template var objectVal = objects[x].Value; item.find('a').click(function () { ShowObject(objectVal.valueOf(), 'T'); }).html(objects[x].Text); // add the html to the list if (list == undefined) list = item; else list.append(item.contents()); } // Prepend the topics to the topic list $("#object_list").empty().append(list.contents()); The problem I am seeing with this is that no matter which item the user clicks on in the #object_list, ShowObject() is called with the last value of objectVal. So for example, if the 3rd item's <a> is clicked, ShowObject(5,'T'); is called even though objects[2].Value is successfully being seen as 2. How can I get this to work? The main purpose of this code is to take a variable number of items gotten from a JSON AJAX request, make copies of the item template, and insert those copies into the correct spot on the html page. I decided to do it this way so that I can keep all my HTML in one spot for when I need to change the layout or design of the page, and not have to hunt for the html code in the javascript.

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• linux raw socket programming question

  - by user194420

  Hi all, I am trying to create a raw socket which send and receive message with ip/tcp header under linux. I can successfully binds to a port and receive tcp message(ie:syn) However, the message seems to be handled by the os, but not mine. I am just a reader of it(like wireshark). My raw socket binds to port 8888, and then i try to telnet to that port . In wireshark, it shows that the port 8888 reply a "rst ack" when it receive the "syn" request. In my program, it shows that it receive a new message and it doesnot reply with any message. Any way to actually binds to that port?(prevent os handle it) Here is part of my code, i try to cut those error checking for easy reading sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_TCP); int tmp = 1; const int *val = &tmp; setsockopt (sockfd, IPPROTO_IP, IP_HDRINCL, val, sizeof (tmp)); servaddr.sin_family = AF_INET; servaddr.sin_addr.s_addr = htonl(INADDR_ANY); servaddr.sin_port = htons(8888); bind(sockfd, (struct sockaddr*)&servaddr, sizeof(servaddr)); //call recv in loop

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• PIC C - Sending 200 values over USB, but it only sends 25 or so of them...

  - by Adam

  I have a PIC18F4455 microcontroller which I am trying to use to send 200 values over USB. Basically I am using a for loop and a printf statement to print the values to the usb output stream. However, when the code executes I see in my serial port monitor that it is only sending the first 25 or so values, then stopping. My PIC C code is below. It will send out the 25th or so value (and the comma), but not send anything after and not send a newline character. I'm trying to get it to send all the values, then a newline character at the end. I am sending them all as characters because I can convert them on the PC end of it. //print #3 for (i = 0; i <= 199; i++){if (data[i]=='\0' || data[i]=='\n'){data[i]++;}} for (i = 0; i < 199; i++){printf(usb_cdc_putc, "%c,", data[i]);} printf(usb_cdc_putc, "%c\n", data[199]);

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