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• [C#]Problem with dynamic create tabPages in TabControl

  - by mirt

  Hello, I want to create dynamic tabPages in TabControl. In each tabPage I create dataGridView and i want to fill the entire space of each tabPage with this dataGrid. Here is code, where i do this: private void tabControlMutants_SelectedIndexChanged(object sender, EventArgs e) { DataGridView dgw = new DataGridView(); DataGridViewTextBoxColumn testCaseCol = new System.Windows.Forms.DataGridViewTextBoxColumn(); DataGridViewTextBoxColumn resultCol = new System.Windoows.Forms.DataGridViewTextBoxColumn(); // // dataGridView1 // dgw.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize; dgw.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] { testCaseCol, resultCol}); dgw.Location = new System.Drawing.Point(3, 3); dgw.Name = "dataGridView1"; dgw.AutoSize = true; dgw.Dock = System.Windows.Forms.DockStyle.Fill; dgw.TabIndex = 0; // // TestCaseColumn // testCaseCol.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill; testCaseCol.HeaderText = "Test Case"; testCaseCol.Name = "TestCaseColumn"; // // ResultColumn // resultCol.HeaderText = "Result"; resultCol.Name = "ResultColumn"; tabControlMutants.TabPages[(sender as TabControl).SelectedIndex].Controls.Add(dgw); ((System.ComponentModel.ISupportInitialize)(dgw)).EndInit(); //fill dataGridView } But it doesn't work, becouse when i resize the main window, data gridView doesn.t change its size (although the dock property is set to fill). Any ideas?

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• How to Convert using of SqlLit to Simple SQL command in C#

  - by Nasser Hajloo

  I want to get start with DayPilot control I do not use SQLLite and this control documented based on SQLLite. I want to use SQL instead of SQL Lite so if you can, please do this for me. main site with samples http://www.daypilot.org/calendar-tutorial.html The database contains a single table with the following structure CREATE TABLE event ( id VARCHAR(50), name VARCHAR(50), eventstart DATETIME, eventend DATETIME); Loading Events private DataTable dbGetEvents(DateTime start, int days) { SQLiteDataAdapter da = new SQLiteDataAdapter("SELECT [id], [name], [eventstart], [eventend] FROM [event] WHERE NOT (([eventend] <= @start) OR ([eventstart] >= @end))", ConfigurationManager.ConnectionStrings["db"].ConnectionString); da.SelectCommand.Parameters.AddWithValue("start", start); da.SelectCommand.Parameters.AddWithValue("end", start.AddDays(days)); DataTable dt = new DataTable(); da.Fill(dt); return dt; } Update private void dbUpdateEvent(string id, DateTime start, DateTime end) { using (SQLiteConnection con = new SQLiteConnection(ConfigurationManager.ConnectionStrings["db"].ConnectionString)) { con.Open(); SQLiteCommand cmd = new SQLiteCommand("UPDATE [event] SET [eventstart] = @start, [eventend] = @end WHERE [id] = @id", con); cmd.Parameters.AddWithValue("id", id); cmd.Parameters.AddWithValue("start", start); cmd.Parameters.AddWithValue("end", end); cmd.ExecuteNonQuery(); } }

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• Extend hasMap to add putChildren method

  - by denny

  Hi all, i have question, i want to develop a programme about extend the hashmap to add putchildren method.. I wrote main class, but now i wanna write putChildrenValue method.. My question is : i need to implement a putChildrenValue method with 3 parameters, String key, String key, ObjectValue. It will store the system as described above accordingly. When i finished this method When you finish the method data Key1 = "RUBY" value=HashMap which has -> "key2" = 5248 && "VALUE" = German Key1 = "PHYTON" value=HashMap which has -> "key2" = 1234 && -> "VALUE" = German My main class is : public static void main(String [] args) { ExtendedHashMap extendedMap = new ExtendedHashMap(); extendedMap.put (“Row1”, “Column1”, “German”); extendedMap.put (“Row1”, “Column2”, “English”); extendedMap.put (“Row1”, “Column3”, “Spanish”); extendedMap.put (“Row2”, “Column1”, “Ruby”); extendedMap.put (“Row2”, “Column2”, “Phyton”); extendedMap.put (“Row3”, “Column3”, “Java”); } Can anyone help me?

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• Trying to parse OpenCV YAML ouput with yaml-cpp

  - by Kenn Sebesta

  I've got a series of OpenCv generated YAML files and would like to parse them with yaml-cpp I'm doing okay on simple stuff, but the matrix representation is proving difficult. # Center of table tableCenter: !!opencv-matrix rows: 1 cols: 2 dt: f data: [ 240, 240] This should map into the vector 240 240 with type float. My code looks like: #include "yaml.h" #include <fstream> #include <string> struct Matrix { int x; }; void operator >> (const YAML::Node& node, Matrix& matrix) { unsigned rows; node["rows"] >> rows; } int main() { std::ifstream fin("monsters.yaml"); YAML::Parser parser(fin); YAML::Node doc; Matrix m; doc["tableCenter"] >> m; return 0; } But I get terminate called after throwing an instance of 'YAML::BadDereference' what(): yaml-cpp: error at line 0, column 0: bad dereference Abort trap I searched around for some documentation for yaml-cpp, but there doesn't seem to be any, aside from a short introductory example on parsing and emitting. Unfortunately, neither of these two help in this particular circumstance. As I understand, the !! indicate that this is a user-defined type, but I don't see with yaml-cpp how to parse that.

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• How to create mobile substrate plugins on XCode?

  - by prathumca

  Hi Everyone, I just wanna create a MS plugin to hook SpringBoard. I'm following "gojohnnyboi" tutorial from here "http://www.ipodtouchfans.com/forums/showthread.php?t=103558". To create a dylib on XCode, I'm following "SkylarEC" tutorial. I mix these two great tutorials and finally got succeed by getting a dylib. But when I placed the dylib in the /Library/MobileSubstrate/DynamicLibraries/ nothing is happened (no alert was shown). By evaluating, I found that, this dylib doesn't have any starting point when it was loaded into the memory. So I mentioned a starting point by declaring a constructor in the .mm file like, __ attribute__((constructor)) static void init() { Class _$SBAppIcon = objc_getClass("SBApplicationIcon"); MSHookMessage($SBAppIcon, @selector(launch), (IMP) &_$ExampleHook_AppIcon_Launch, "_OriginalMethodPrefix"); } But when I'm trying to compile this, I'm getting an error like, Undefined symbols: "_MSHookMessage", referenced from: init() in ExampleHook.o ld: symbol(s) not found collect2: ld returned 1 exit status. Does anyone has idea how to solve this? It would be great and more helpful if anyone share the detailed tutorial/instructions to create a dylib on XCode. P.S I placed all the libsubstrate.dylib and substrate.h files in the corresponding location. And the locations are, libsubstrate.dylib : /Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/ substrate.h : /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include and my base SDK is 3.0.

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• C# Why can't I find Sum() of this HashSet. says "Arithmetic operation resulted in an overflow."

  - by user2332665

  I was trying to solve this problem projecteuler,problem125 this is my solution in python(just for understanding the logic) import math lim=10**8 found=set() for start in xrange(1,int(math.sqrt(lim))): sos = start*start for i in xrange(start+1,int(math.sqrt(lim))): sos += (i*i) if sos >= lim: break s=str(int(sos)) if s==s[::-1]: found.add(sos) print sum(found) the same code I wrote in C# is as follows using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Program { public static bool isPalindrome(string s) { string temp = ""; for (int i=s.Length-1;i>=0;i-=1){temp+=s[i];} return (temp == s); } static void Main(string[] args) { int lim = Convert.ToInt32(Math.Pow(10,8)); var found = new HashSet<int>(); for (int start = 1; start < Math.Sqrt(lim); start += 1) { int s = start *start; for (int i = start + 1; start < Math.Sqrt(lim); i += 1) { s += i * i; if (s > lim) { break; } if (isPalindrome(s.ToString())) { found.Add(s); } } } Console.WriteLine(found.Sum()); } } } the code debugs fine until it gives an exception at Console.WriteLine(found.Sum()); (line31). Why can't I find Sum() of the set found

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• custom httphandler in asp.net cannot get request querystring?

  - by Sander

  i've been trying to get this to work. its basicly a way to have certain MVC pages work within a webforms cms (umbraco) someone tried it before me and had issues with MVC2.0 (see here), i read the post, did what was announced there, but with or without that code, i seem to get stuck on a different matter. it seems like, if i call an url, it fires the handler, but fails to request the querystring passed, the variable originalPath is always empty, for example i call this url: http://localhost:8080/mvc.ashx?mvcRoute=/home/RSVPForm the handler is supposed to get the mvcRoute but it is always empty. thus gets rewritten to a simple / and then returns resource cannot be found error. here is the code i use now public void ProcessRequest(HttpContext httpContext) { string originalPath = httpContext.Request.Path; string newPath = httpContext.Request.QueryString["mvcRoute"]; if (string.IsNullOrEmpty(newPath)) newPath = "/"; HttpContext.Current.RewritePath(newPath, false); IHttpHandler ih = (IHttpHandler)new MvcHttpHandler(); ih.ProcessRequest(httpContext); HttpContext.Current.RewritePath(originalPath, false); } i would like some new input on this as i'm staring myself blind on such a simple issue, while i thought i would have more problems with mvc itself :p Edit have no time to investigate, but after copying the site over to different locations, using numerous web.config changes (unrelated to this error but was figuring other things out) this error seems to have solved itself. so its no longer an issue, however i have no clue as to what exactly made this to work again.

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• LINQ(2 SQL) Insert Multiple Tables Question

  - by Refracted Paladin

  I have 3 tables. A primary EmploymentPlan table with PK GUID EmploymentPlanID and 2 FK's GUID PrevocServicesID & GUID JobDevelopmentServicesID. There are of course other fields, almost exclusively varchar(). Then the 2 secondary tables with the corresponding PK to the primary's FK's. I am trying to write the LINQ INSERT Method and am struggling with the creation of the keys. Say I have a method like below. Is that correct? Will that even work? Should I have seperate methods for each? Also, when INSERTING I didn't think I needed to provide the PK for a table. It is auto-generated, no? Thanks, public static void InsertEmploymentPlan(int planID, Guid employmentQuestionnaireID, string user, bool communityJob, bool jobDevelopmentServices, bool prevocServices, bool transitionedPrevocIntegrated, bool empServiceMatchPref) { using (var context = MatrixDataContext.Create()) { var empPrevocID = Guid.NewGuid(); var prevocPlan = new tblEmploymentPrevocService { EmploymentPrevocID = empPrevocID }; context.tblEmploymentPrevocServices.InsertOnSubmit(prevocPlan); var empJobDevID = Guid.NewGuid(); var jobDevPlan = new tblEmploymentJobDevelopmetService() { JobDevelopmentServicesID = empJobDevID }; context.tblEmploymentJobDevelopmetServices.InsertOnSubmit(jobDevPlan); var empPlan = new tblEmploymentQuestionnaire { CommunityJob = communityJob, EmploymentQuestionnaireID = Guid.NewGuid(), InsertDate = DateTime.Now, InsertUser = user, JobDevelopmentServices = jobDevelopmentServices, JobDevelopmentServicesID =empJobDevID, PrevocServices = prevocServices, PrevocServicesID =empPrevocID, TransitionedPrevocToIntegrated =transitionedPrevocIntegrated, EmploymentServiceMatchPref = empServiceMatchPref }; context.tblEmploymentQuestionnaires.InsertOnSubmit(empPlan); context.SubmitChanges(); } } I understand I can use more then 1 InsertOnSubmit, See SO ? HERE, I just don't understand how that would apply to my situation and the PK/FK creation.

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• NSOperationQueue bug with dependencies

  - by Daniel

  I am using NSOperation and NSOperationQueue for performing a sequence of operations, all dependent on each other (2 on 1, 3 on 2, etc...). I set the dependency after I create the operations. I am encountering problems when the queue completes: the program crashes in the _release part of the code, apparently when the NSOperations are getting released. Note that they all get released at the end by the queue, because it is only after the very last one which depends on the second last one, which depends on etc... that they can be released. If I remove any dependency, the code runs fine. If I change waitUntilFinished: to NO, it crashes, if it is YES, it does not. I have isolated the problem to the following code which does not use any of my custom classes. NSOperation by default is a class that does absolutely nothing. Yet, this still crashes when all operations have completed. Therefore, it appears I am not using NSOperationQueue properly but can't see what is wrong. I am running on 10.9 and I have noticed that in general Maverick 10.9 is much more sensitive to these issues than 10.8. I call this method from the main Thread with a Menu item: - (void) testOperations:(id)object { NSOperationQueue* queue = [ [ NSOperationQueue alloc ] init ]; NSMutableArray* array = [ NSMutableArray array ]; for ( int i = 0; i < 10000; i++) [ array addObject: [[[ NSOperation alloc ] init ] autorelease ] ]; for ( int i = 1; i < [ array count ]; i++) [[ array objectAtIndex:i ] addDependency:[array objectAtIndex:i-1]]; // remove this and no crash [ queue addOperations: array waitUntilFinished:NO ]; // Change to YES, no crash [ queue autorelease ]; // or release, it does not make a difference, in fact leaking the memory makes no difference: the code crashes when the queue is removing the NSOperations } This will crash every single time with: bool objc::DenseMapBase , objc_object*, unsigned long, objc::DenseMapInfo, true: (EXC_BAD_ACCESS) The full stack is: #0 0x9104d81b in objc::DenseMapBase<objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*> >, objc_object*, unsigned long, objc::DenseMapInfo<objc_object*>, true>::find(objc_object* const&) () #1 0x910384e3 in _objc_rootReleaseWasZero () #2 0x9104d5d9 in -[NSObject release] () #3 0x99e41224 in CFRelease () #4 0x99e56277 in -[__NSArrayM dealloc] () #5 0x9104d5ef in -[NSObject release] () #6 0x97f62b22 in -[__NSOperationInternal dealloc] () #7 0x9104d5ef in -[NSObject release] () #8 0x97f62ac8 in -[NSOperation dealloc] () #9 0x9104d5ef in -[NSObject release] () #10 0x99e41224 in CFRelease () #11 0x99e56277 in -[__NSArrayM dealloc] () #12 0x9104d5ef in -[NSObject release] () #13 0x97f62b22 in -[__NSOperationInternal dealloc] () #14 0x9104d5ef in -[NSObject release] () #15 0x97f62ac8 in -[NSOperation dealloc] () #16 0x9104d5ef in -[NSObject release] () #17 0x99e41224 in CFRelease () #18 0x99e56277 in -[__NSArrayM dealloc] () #19 0x9104d5ef in -[NSObject release] () #20 0x97f62b22 in -[__NSOperationInternal dealloc] () #21 0x9104d5ef in -[NSObject release] () #22 0x97f62ac8 in -[NSOperation dealloc] () #23 0x9104d5ef in -[NSObject release] () #24 0x99e41224 in CFRelease () #25 0x99e56277 in -[__NSArrayM dealloc] () #26 0x9104d5ef in -[NSObject release] () #27 0x97f62b22 in -[__NSOperationInternal dealloc] () #28 0x9104d5ef in -[NSObject release] () #29 0x97f62ac8 in -[NSOperation dealloc] () #30 0x9104d5ef in -[NSObject release] () #31 0x99e41224 in CFRelease () #32 0x99e56277 in -[__NSArrayM dealloc] () #33 0x9104d5ef in -[NSObject release] () #34 0x97f62b22 in -[__NSOperationInternal dealloc] () #35 0x9104d5ef in -[NSObject release] () #36 0x97f62ac8 in -[NSOperation dealloc] () #37 0x9104d5ef in -[NSObject release] () #38 0x99e41224 in CFRelease () #39 0x99e56277 in -[__NSArrayM dealloc] () #40 0x9104d5ef in -[NSObject release] () #41 0x97f62b22 in -[__NSOperationInternal dealloc] () #42 0x9104d5ef in -[NSObject release] () #43 0x97f62ac8 in -[NSOperation dealloc] () #44 0x9104d5ef in -[NSObject release] () #45 0x99e41224 in CFRelease () #46 0x99e56277 in -[__NSArrayM dealloc] () #47 0x9104d5ef in -[NSObject release] () #48 0x97f62b22 in -[__NSOperationInternal dealloc] () #49 0x9104d5ef in -[NSObject release] () #50 0x97f62ac8 in -[NSOperation dealloc] () #10722 0x9104d5ef in -[NSObject release] () #10723 0x97f62b22 in -[__NSOperationInternal dealloc] () #10724 0x9104d5ef in -[NSObject release] () #10725 0x97f62ac8 in -[NSOperation dealloc] () #10726 0x9104d5ef in -[NSObject release] () #10727 0x99e41224 in CFRelease () #10728 0x99e56277 in -[__NSArrayM dealloc] () #10729 0x9104d5ef in -[NSObject release] () #10730 0x97f62b22 in -[__NSOperationInternal dealloc] () #10731 0x9104d5ef in -[NSObject release] () #10732 0x97f62ac8 in -[NSOperation dealloc] () #10733 0x9104d5ef in -[NSObject release] () #10734 0x99e41224 in CFRelease () #10735 0x99e56277 in -[__NSArrayM dealloc] () #10736 0x9104d5ef in -[NSObject release] () #10737 0x97f62b22 in -[__NSOperationInternal dealloc] () #10738 0x9104d5ef in -[NSObject release] () #10739 0x97f62ac8 in -[NSOperation dealloc] () #10740 0x9104d5ef in -[NSObject release] () #10741 0x99e41224 in CFRelease () #10742 0x99e56277 in -[__NSArrayM dealloc] () #10743 0x9104d5ef in -[NSObject release] () #10744 0x97f62b22 in -[__NSOperationInternal dealloc] () #10745 0x9104d5ef in -[NSObject release] () #10746 0x97f62ac8 in -[NSOperation dealloc] () #10747 0x9104d5ef in -[NSObject release] () #10748 0x99e41224 in CFRelease () #10749 0x99e56277 in -[__NSArrayM dealloc] () #10750 0x9104d5ef in -[NSObject release] () #10751 0x97f62b22 in -[__NSOperationInternal dealloc] () #10752 0x9104d5ef in -[NSObject release] () #10753 0x97f62ac8 in -[NSOperation dealloc] () #10754 0x9104d5ef in -[NSObject release] () #10755 0x99e41224 in CFRelease () #10756 0x99e56277 in -[__NSArrayM dealloc] () #10757 0x9104d5ef in -[NSObject release] () #10758 0x97f62b22 in -[__NSOperationInternal dealloc] () #10759 0x9104d5ef in -[NSObject release] () #10760 0x97f62ac8 in -[NSOperation dealloc] () #10761 0x9104d5ef in -[NSObject release] () #10762 0x99e41224 in CFRelease () #10763 0x99e56277 in -[__NSArrayM dealloc] () #10764 0x9104d5ef in -[NSObject release] () #10765 0x97f62b22 in -[__NSOperationInternal dealloc] () #10766 0x9104d5ef in -[NSObject release] () #10767 0x97f62ac8 in -[NSOperation dealloc] () #10768 0x9104d5ef in -[NSObject release] () #10769 0x99e41224 in CFRelease () #10770 0x99e56277 in -[__NSArrayM dealloc] () #10771 0x9104d5ef in -[NSObject release] () #10772 0x97f62b22 in -[__NSOperationInternal dealloc] () #10773 0x9104d5ef in -[NSObject release] () #10774 0x97f62ac8 in -[NSOperation dealloc] () #10775 0x9104d5ef in -[NSObject release] () #10776 0x99e41224 in CFRelease () #10777 0x99e56277 in -[__NSArrayM dealloc] () #10778 0x9104d5ef in -[NSObject release] () #10779 0x97f62b22 in -[__NSOperationInternal dealloc] () #10780 0x9104d5ef in -[NSObject release] () #10781 0x97f62ac8 in -[NSOperation dealloc] () #10782 0x9104d5ef in -[NSObject release] () #10783 0x99e41224 in CFRelease () #10784 0x99e56277 in -[__NSArrayM dealloc] () #10785 0x9104d5ef in -[NSObject release] () #10786 0x97f62b22 in -[__NSOperationInternal dealloc] () #10787 0x9104d5ef in -[NSObject release] () #10788 0x97f62ac8 in -[NSOperation dealloc] () #10789 0x9104d5ef in -[NSObject release] () #10790 0x99e41224 in CFRelease () #10791 0x99e56277 in -[__NSArrayM dealloc] () #10792 0x9104d5ef in -[NSObject release] () #10793 0x97f62b22 in -[__NSOperationInternal dealloc] () #10794 0x9104d5ef in -[NSObject release] () #10795 0x97f62ac8 in -[NSOperation dealloc] () #10796 0x9104d5ef in -[NSObject release] () #10797 0x99e41224 in CFRelease () #10798 0x99e56277 in -[__NSArrayM dealloc] () #10799 0x9104d5ef in -[NSObject release] () #10800 0x97f62b22 in -[__NSOperationInternal dealloc] () #10801 0x9104d5ef in -[NSObject release] () #10802 0x97f62ac8 in -[NSOperation dealloc] () #10803 0x9104d5ef in -[NSObject release] () #10804 0x99e41224 in CFRelease () #10805 0x99e56277 in -[__NSArrayM dealloc] () #10806 0x9104d5ef in -[NSObject release] () #10807 0x97f62b22 in -[__NSOperationInternal dealloc] () #10808 0x9104d5ef in -[NSObject release] () #10809 0x97f62ac8 in -[NSOperation dealloc] () #10810 0x9104d5ef in -[NSObject release] () #10811 0x99e41224 in CFRelease () #10812 0x99e56277 in -[__NSArrayM dealloc] () #10813 0x9104d5ef in -[NSObject release] () #10814 0x97f62b22 in -[__NSOperationInternal dealloc] () #10815 0x9104d5ef in -[NSObject release] () #10816 0x97f62ac8 in -[NSOperation dealloc] () #10817 0x9104d5ef in -[NSObject release] () #10818 0x99e41224 in CFRelease () #10819 0x99e56277 in -[__NSArrayM dealloc] () #10820 0x9104d5ef in -[NSObject release] () #10821 0x97f62b22 in -[__NSOperationInternal dealloc] () #10822 0x9104d5ef in -[NSObject release] () #10823 0x97f62ac8 in -[NSOperation dealloc] () #10824 0x9104d5ef in -[NSObject release] () #10825 0x99e41224 in CFRelease () #10826 0x99e56277 in -[__NSArrayM dealloc] () #10827 0x9104d5ef in -[NSObject release] () #10828 0x97f62b22 in -[__NSOperationInternal dealloc] () #10829 0x9104d5ef in -[NSObject release] () #10830 0x97f62ac8 in -[NSOperation dealloc] () #10831 0x9104d5ef in -[NSObject release] () #10832 0x99e41224 in CFRelease () #10833 0x99e56277 in -[__NSArrayM dealloc] () #10834 0x9104d5ef in -[NSObject release] () #10835 0x97f62b22 in -[__NSOperationInternal dealloc] () #10836 0x9104d5ef in -[NSObject release] () #10837 0x97f62ac8 in -[NSOperation dealloc] () #10838 0x9104d5ef in -[NSObject release] () #10839 0x99e41224 in CFRelease () #10840 0x99e56277 in -[__NSArrayM dealloc] () #10841 0x9104d5ef in -[NSObject release] () #10842 0x97f62b22 in -[__NSOperationInternal dealloc] () #10843 0x9104d5ef in -[NSObject release] () #10844 0x97f62ac8 in -[NSOperation dealloc] () #10845 0x9104d5ef in -[NSObject release] () #10846 0x99e41224 in CFRelease () #10847 0x99e56277 in -[__NSArrayM dealloc] () #10848 0x9104d5ef in -[NSObject release] () #10849 0x97f62b22 in -[__NSOperationInternal dealloc] () #10850 0x9104d5ef in -[NSObject release] () #10851 0x97f62ac8 in -[NSOperation dealloc] () #10852 0x9104d5ef in -[NSObject release] () #10853 0x99e41224 in CFRelease () #10854 0x99e56277 in -[__NSArrayM dealloc] () #10855 0x9104d5ef in -[NSObject release] () #10856 0x97f62b22 in -[__NSOperationInternal dealloc] () #10857 0x9104d5ef in -[NSObject release] () #10858 0x97f62ac8 in -[NSOperation dealloc] () #10859 0x9104d5ef in -[NSObject release] () #10860 0x99e41224 in CFRelease () #10861 0x99e56277 in -[__NSArrayM dealloc] () #10862 0x9104d5ef in -[NSObject release] () #10863 0x97f62b22 in -[__NSOperationInternal dealloc] () #10864 0x9104d5ef in -[NSObject release] () #10865 0x97f62ac8 in -[NSOperation dealloc] () #10866 0x9104d5ef in -[NSObject release] () #10867 0x99e41224 in CFRelease () #10868 0x99e56277 in -[__NSArrayM dealloc] () #10869 0x9104d5ef in -[NSObject release] () #10870 0x97f62b22 in -[__NSOperationInternal dealloc] () #10871 0x9104d5ef in -[NSObject release] () #10872 0x97f62ac8 in -[NSOperation dealloc] () #10873 0x9104d5ef in -[NSObject release] () #10874 0x99e41224 in CFRelease () #10875 0x99e56277 in -[__NSArrayM dealloc] () #10876 0x9104d5ef in -[NSObject release] () #10877 0x97f62b22 in -[__NSOperationInternal dealloc] () #10878 0x9104d5ef in -[NSObject release] () #10879 0x97f62ac8 in -[NSOperation dealloc] () #10880 0x9104d5ef in -[NSObject release] () #10881 0x99e41224 in CFRelease () #10882 0x99e56277 in -[__NSArrayM dealloc] () #10883 0x9104d5ef in -[NSObject release] () #10884 0x97f62b22 in -[__NSOperationInternal dealloc] () #10885 0x9104d5ef in -[NSObject release] () #10886 0x97f62ac8 in -[NSOperation dealloc] () #10887 0x9104d5ef in -[NSObject release] () #10888 0x99e41224 in CFRelease () #10889 0x99e56277 in -[__NSArrayM dealloc] () #10890 0x9104d5ef in -[NSObject release] () #10891 0x97f62b22 in -[__NSOperationInternal dealloc] () #10892 0x9104d5ef in -[NSObject release] () #10893 0x97f62ac8 in -[NSOperation dealloc] () #10894 0x9104d5ef in -[NSObject release] () #10895 0x99e41224 in CFRelease () #10896 0x99e56277 in -[__NSArrayM dealloc] () #10897 0x9104d5ef in -[NSObject release] () #10898 0x97f62b22 in -[__NSOperationInternal dealloc] () #10899 0x9104d5ef in -[NSObject release] () #10900 0x97f62ac8 in -[NSOperation dealloc] () #10901 0x9104d5ef in -[NSObject release] () #10902 0x99e41224 in CFRelease () #10903 0x99e56277 in -[__NSArrayM dealloc] () #10904 0x9104d5ef in -[NSObject release] () #10905 0x97f62b22 in -[__NSOperationInternal dealloc] () #10906 0x9104d5ef in -[NSObject release] () #10907 0x97f62ac8 in -[NSOperation dealloc] () #10908 0x9104d5ef in -[NSObject release] () #10909 0x99e41224 in CFRelease () #10910 0x99e56277 in -[__NSArrayM dealloc] () #10911 0x9104d5ef in -[NSObject release] () #10912 0x97f62b22 in -[__NSOperationInternal dealloc] () #10913 0x9104d5ef in -[NSObject release] () #10914 0x97f62ac8 in -[NSOperation dealloc] () #10915 0x9104d5ef in -[NSObject release] () #10916 0x97f49cca in __NSOQSchedule_f () #10917 0x9c1c9e21 in _dispatch_async_redirect_invoke () #10918 0x9c1c53a6 in _dispatch_client_callout () #10919 0x9c1c7467 in _dispatch_root_queue_drain () #10920 0x9c1c8732 in _dispatch_worker_thread2 () #10921 0x960c2dab in _pthread_wqthread () The full crash context is (bold for crash line): libobjc.A.dylib`objc::DenseMapBase<objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*> >, objc_object*, unsigned long, objc::DenseMapInfo<objc_object*>, true>::find(objc_object* const&): 0x9104d800: pushl %ebp 0x9104d801: movl %esp, %ebp 0x9104d803: pushl %esi 0x9104d804: subl $20, %esp 0x9104d807: leal -8(%ebp), %eax 0x9104d80a: movl %eax, 8(%esp) 0x9104d80e: movl 16(%ebp), %eax 0x9104d811: movl %eax, 4(%esp) 0x9104d815: movl 12(%ebp), %esi 0x9104d818: movl %esi, (%esp) **0x9104d81b: calll 0x9104d9b6 ; bool objc::DenseMapBase<objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*> >, objc_object*, unsigned long, objc::DenseMapInfo<objc_object*>, true>::LookupBucketFor<objc_object*>(objc_object* const&, std::__1::pair<objc_object*, unsigned long> const*&) const** 0x9104d820: movl 12(%esi), %ecx 0x9104d823: shll $3, %ecx 0x9104d826: addl (%esi), %ecx 0x9104d828: movl 8(%ebp), %edx 0x9104d82b: testb %al, %al 0x9104d82d: je 0x9104d836 ; objc::DenseMapBase<objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*> >, objc_object*, unsigned long, objc::DenseMapInfo<objc_object*>, true>::find(objc_object* const&) + 54 0x9104d82f: movl -8(%ebp), %eax 0x9104d832: movl %eax, (%edx) 0x9104d834: jmp 0x9104d838 ; objc::DenseMapBase<objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*> >, objc_object*, unsigned long, objc::DenseMapInfo<objc_object*>, true>::find(objc_object* const&) + 56 0x9104d836: movl %ecx, (%edx) 0x9104d838: movl %ecx, 4(%edx) 0x9104d83b: addl $20, %esp 0x9104d83e: popl %esi 0x9104d83f: popl %ebp 0x9104d840: ret $4 0x9104d843: nop I tried using a pre-created queue, this makes no difference. Apparently, with dependencies, this code is a problem with XCode 5.0, 32-bit. Edit: In fact, I can isolate the problem much further. An empty Cocoa Application project in XCOde 5.0 on 10.9 with ARC on and a single method will crash. If it does not on your computer, increase 4269 to anything bigger: - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { NSOperationQueue* aQueue = [[ NSOperationQueue alloc ] init ]; NSMutableArray* array = [ NSMutableArray array ]; for ( int i = 0; i < 4269; i++) [ array addObject: [ [NSOperation alloc ] init ]]; for ( int i = 1; i < [ array count ]; i++) [[ array objectAtIndex:i ] addDependency:[array objectAtIndex:i-1]]; [ aQueue addOperations: array waitUntilFinished:NO ]; }

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• Right way to dispose Image/Bitmap and PictureBox

  - by kornelijepetak

  I am trying to develop a Windows Mobile 6 (in WF/C#) application. There is only one form and on the form there is only a PictureBox object. On it I draw all desired controls or whatever I want. There are two things I am doing. Drawing custom shapes and loading bitmaps from .png files. The next line locks the file when loading (which is an undesired scenario): Bitmap bmp = new Bitmap("file.png"); So I am using another way to load bitmap. public static Bitmap LoadBitmap(string path) { using (Bitmap original = new Bitmap(path)) { return new Bitmap(original); } } This is I guess much slower, but I don't know any better way to load an image, while quickly releasing the file lock. Now, when drawing an image there is method that I use: public void Draw() { Bitmap bmp = new Bitmap(240,320); Graphics g = Graphics.FromImage(bmp); // draw something with Graphics here. g.Clear(Color.Black); g.DrawImage(Images.CloseIcon, 16, 48); g.DrawImage(Images.RefreshIcon, 46, 48); g.FillRectangle(new SolidBrush(Color.Black), 0, 100, 240, 103); pictureBox.Image = bmp; } This however seems to be some kind of a memory leak. And if I keep doing it for too long, the application eventually crashes. Therefor, I have X questions: 1.) What is the better way for loading bitmaps from files without locking the file? 2.) What objects needs to be manually disposed in the Draw() function (and in which order) so there's no memory leak and no ObjectDisposedException throwing? 3.) If pictureBox.Image is set to bmp, like in the last line of the code, would pictureBox.Image.Dispose() dispose only resources related to maintaining the pictureBox.Image or the underlying Bitmap set to it?

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• adding tabbar to uiview (not tabbarcontroller) to switch views

  - by Pavan

  Hi, i added a Tab bar to my existing view called secondViewController where there are now 4 tab bar items using interface builder. This tab bar will allow the users to switch between views. This is what ive tried to do: If i use a tabbar controller, then a new view pops up and i dont want that. i simply want to be able to add a tab bar as ive done and carry on from there. i dont know how to actually connect it all up and make everything work together. This is what i understand: i have to make my current - secondViewController an tabbardelegate which is what ive done as shown @interface paddedDholViewController : UIViewController <AVAudioPlayerDelegate, UITabBarDelegate> { } then i understand that i have to add tabBar.delegate = self; for me to be able to detect the tabBar:didSelectItem: so i can then implement something like this - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { if ([viewController.tabBarItem.title isEqualToString:@"FIRST"]) { NSLog(@"FIRST"); } else if ([viewController.tabBarItem.title isEqualToString:@"SECOND"]) { NSLog(@"SECOND"); } } to be able to switch between the views The thing is as ive said before i dont know how to implement all of this and how to connect everything up. can someone help me please. Thank you in advance

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• Informix, NHibernate, TransactionScope interaction difficulties

  - by John Prideaux

  I have a small program that is trying to wrap an NHibernate insert into an Informix database in a TransactionScope object using the Informix .NET Provider. I am getting the error specified below. The code without the TransactionScope object works -- including when the insert is wrapped in an NHibernate session transaction. Any ideas on what the problem is? BTW, without the EnterpriseServicesInterop, the Informix .NET Provider will not participate in a TransactionScope transaction (verified without NHibernate involved). Code Snippet: public static void TestTScope() { Employee johnp = new Employee { name = "John Prideaux" }; using (TransactionScope tscope = new TransactionScope( TransactionScopeOption.Required, new TransactionOptions() { Timeout = new TimeSpan(0, 1, 0), IsolationLevel = IsolationLevel.ReadCommitted }, EnterpriseServicesInteropOption.Full)) { using (ISession session = OpenSession()) { session.Save(johnp); Console.WriteLine("Saved John to the database"); } } Console.WriteLine("Transaction should be rolled back"); } static ISession OpenSession() { if (factory == null) { Configuration c = new Configuration(); c.AddAssembly(Assembly.GetCallingAssembly()); factory = c.BuildSessionFactory(); } return factory.OpenSession(); } static ISessionFactory factory; Stack Trace: NHibernate.ADOException was unhandled Message="Could not close IBM.Data.Informix.IfxConnection connection" Source="NHibernate" StackTrace: at NHibernate.Connection.ConnectionProvider.CloseConnection(IDbConnection conn) at NHibernate.Connection.DriverConnectionProvider.CloseConnection(IDbConnection conn) at NHibernate.Tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.Release() at NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.GetReservedWords(Dialect dialect, IConnectionHelper connectionHelper) at NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.Update(ISessionFactory sessionFactory) at NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping mapping, Settings settings, EventListeners listeners) at NHibernate.Cfg.Configuration.BuildSessionFactory() at HelloNHibernate.Employee.OpenSession() in D:\Development\ScratchProject\HelloNHibernate\Employee.cs:line 73 at HelloNHibernate.Employee.TestTScope() in D:\Development\ScratchProject\HelloNHibernate\Employee.cs:line 53 at HelloNHibernate.Program.Main(String[] args) in D:\Development\ScratchProject\HelloNHibernate\Program.cs:line 19 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: IBM.Data.Informix.IfxException Message="ERROR - no error information available" Source="IBM.Data.Informix" ErrorCode=-2147467259 StackTrace: at IBM.Data.Informix.IfxConnection.HandleError(IntPtr hHandle, SQL_HANDLE hType, RETCODE retcode) at IBM.Data.Informix.IfxConnection.DisposeClose() at IBM.Data.Informix.IfxConnection.Close() at NHibernate.Connection.ConnectionProvider.CloseConnection(IDbConnection conn) InnerException:

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• vant view dataset with microsoft report viewer

  - by Tan

  I have a dataset, the dataset is using a stored procedur to fetch data. i have filled the dataset and everythings is okej.When iam using the debug i can se that the dataset is not empty. but i cant view it with the microsoft report viewer. here is my code please help. private void frmPrint_Load(object sender, EventArgs e) { this.reportViewer1.RefreshReport(); reportViewer1.LocalReport.DataSources.Clear(); GetCauseMachineMatrixTableAdapter adapter = new GetCauseMachineMatrixTableAdapter(); QpNibrolDataSet dataset = new QpNibrolDataSet(); adapter.Fill(dataset.GetCauseMachineMatrix, this.start, this.end); DataTable DT = dataset.Tables[0]; ReportDataSource reportdatasource = new ReportDataSource(); reportdatasource.Name = "RDS_NAME"; reportdatasource.Value = DT; reportViewer1.LocalReport.DataSources.Add(reportdatasource); reportViewer1.LocalReport.Refresh(); reportViewer1.RefreshReport(); } the form is saying "The source of the report definition is not been specified" what im i doing wrong. Idont use a rdlc because when iam trying to view my dataset no columms name show because the Stored procedur i am using requires Parameters. please advice and help my thank you

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• Java Simple Chat Box

  - by Allen

  I am trying to create a very simple chat window that simply has the ability to display some text, which i add to from time to time. However I get the following run time error when attempting to append text to the window: java.lang.ClassCastException: javax.swing.JViewport cannot be cast to javax.swing.JTextPane at ChatBox.getTextPane(ChatBox.java:41) at ChatBox.getDocument(ChatBox.java:45) at ChatBox.addMessage(ChatBox.java:50) at ImageTest2.main(ImageTest2.java:160) Here is the class to handle the basic operations: public class ChatBox extends JScrollPane { private Style style; public ChatBox() { StyleContext context = new StyleContext(); StyledDocument document = new DefaultStyledDocument(context); style = context.getStyle(StyleContext.DEFAULT_STYLE); StyleConstants.setAlignment(style, StyleConstants.ALIGN_LEFT); StyleConstants.setFontSize(style, 14); StyleConstants.setSpaceAbove(style, 4); StyleConstants.setSpaceBelow(style, 4); JTextPane textPane = new JTextPane(document); textPane.setEditable(false); this.add(textPane); } public JTextPane getTextPane() { return (JTextPane) this.getComponent(0); } public StyledDocument getDocument() { return (StyledDocument) getTextPane().getStyledDocument(); } public void addMessage(String speaker, String message) { String combinedMessage = speaker + ": " + message; StyledDocument document = getDocument(); try { document.insertString(document.getLength(), combinedMessage, style); } catch (BadLocationException badLocationException) { System.err.println("Oops"); } } } if there is a simpler way to do this, by all means let me know. I only need the text to be of a single font type, and uneditable by the user. Aside from that, I just need to be able to append text on the fly.

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• UpdatePanel doesn't do partial-page update, and IsInAsyncPostBack is always false

  - by Joseph Anderson

  I'm attempting to use an UpdatePanel, but can't get partial-page updates to work. When I look at the ScriptManager's IsInAsyncPostBack property, it's always false. Here's a page that reproduces the issue. It has a ScriptManager, an UpdatePanel, a LinkButton within the update panel, and a Button wired up to the UpdatePanel via the Triggers collection. <%@ Page Language="C#" %> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { Label1.Text = DateTime.Now.ToString(); if (IsPostBack) Label1.Text += " - Postback!"; if (ScriptManager1.IsInAsyncPostBack) Label1.Text += " - Async!"; } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" EnablePartialRendering="true" runat="server" /> <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server"> <ContentTemplate>Panel 1:<asp:Label runat=server ID=Label1 /><br /> <asp:LinkButton runat=server ID="LinkButton1" Text="Update!"></asp:LinkButton></ContentTemplate> <Triggers><asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" /></Triggers> </asp:UpdatePanel> <asp:Button ID="Button1" Text="Refresh Panel 1" runat="server" UseSubmitBehavior=false /> </form> </body> </html> If I run this code and click on either of the buttons, I see "Panel 1:2/8/2010 3:38:41 PM - Postback!" I expected that clicking either button would cause a partial-page update for UpdatePanel1, that IsInAsyncPostBack would be true, and that " - Async!" would be appended to Label1. Any idea why IsInAsyncPostBack is always false?

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• high performance hibernate insert

  - by luke

  I am working on a latency sensitive part of an application, basically i will receive a network event transform the data and then insert all the data into the DB. After profiling i see that basically all my time is spent trying to save the data. here is the code private void insertAllData(Collection<Data> dataItems) { long start_time = System.currentTimeMillis(); long save_time = 0; long commit_time = 0; Transaction tx = null; try { Session s = HibernateSessionFactory.getSession(); s.setCacheMode(CacheMode.IGNORE); s.setFlushMode(FlushMode.NEVER); tx = s.beginTransaction(); for(Data data : dataItems) { s.saveOrUpdate(data); } save_time = System.currentTimeMillis(); tx.commit(); s.flush(); s.clear(); } catch(HibernateException ex) { if(tx != null) tx.rollback(); } commit_time = System.currentTimeMillis(); System.out.println("Save: " + (save_time - start_time)); System.out.println("Commit: " + (commit_time - save_time)); System.out.println(); } The size of the collection is always less than 20. here is the timing data that i see: Save: 27 Commit: 9 Save: 27 Commit: 9 Save: 26 Commit: 9 Save: 36 Commit: 9 Save: 44 Commit: 0 This is confusing to me. I figure that the save should be quick and all the time should be spent on commit. but clearly I'm wrong. I have also tried removing the transaction (its not really necessary) but i saw worse times... I have set hibernate.jdbc.batch_size=20... i need this operation to be as fast as possible, ideally there would only be one roundtrip to the database. How can i do this?

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• cocos2d MFMailComposeViewController

  - by MRaguse

  hi, i tried to insert a mail tool in my app.... my app is based on the cocos2d engine the Toolbar (at the top -cancel,send...) is visible but i can't see the other parts of the mfMailComposerViewController view :-( code: -(void)displayComposerSheet { MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"my message"]; // Set up recipients NSArray *toRecipients = [NSArray arrayWithObject:@"[email protected]"]; NSArray *ccRecipients = [NSArray arrayWithObjects:@"[email protected]", @"[email protected]", nil]; NSArray *bccRecipients = [NSArray arrayWithObject:@"[email protected]"]; [picker setToRecipients:toRecipients]; [picker setCcRecipients:ccRecipients]; [picker setBccRecipients:bccRecipients]; // Attach an image to the email UIImage *screenshot = [[Director sharedDirector] screenShotUIImage]; NSData *myData = UIImagePNGRepresentation(screenshot); [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"AdMotiv"]; // Fill out the email body text NSString *emailBody = @"test"; [picker setMessageBody:emailBody isHTML:NO]; [[picker view] setFrame:CGRectMake(0.0f,0.0f,320.0f, 480.0f)]; [[picker view] setTransform:CGAffineTransformIdentity]; [[picker view] setBounds:CGRectMake(0.0f,0.0f,320.0f, 480.0f)]; //[[[VariableStore sharedInstance] parentView] setTransform: CGAffineTransformIdentity]; //[[[VariableStore sharedInstance] parentView] setBounds : CGRectMake(0.0f, 0.0f, 480.0f, 320.0f)]; UITextField *textfeld = [[UITextField alloc] initWithFrame:CGRectMake(50.0f, 50.0f, 100.0f, 100.0f)]; [[picker view] addSubview:textfeld]; [[[VariableStore sharedInstance] window]addSubview:picker.view]; [[[VariableStore sharedInstance] window] makeKeyAndVisible]; [picker release]; }

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• WOT Bookmarklet

  - by S.A

  I'm trying to write a bookmarklet that will allow me to view the Web Of Trust (WOT) ratings for all the links on a page before visiting them. While WOT provides their own bookmarklet, it is not very useful since you need to visit the page first before viewing the rating. This will be used on SeaMonkey, so I can't just install the WOT extension, either. WOT has a Javascript API that allows you to activate the ratings on any page it is included in, so I am using that as a base. However, it never seems to work correctly as a bookmarklet. Here's one attempt where I tried to keep the code as close to the API as possible. I only modified the wotinject function so that it would work in a bookmarklet and added a timeout so that the rating widget wouldn't be loaded before jQuery. var wotprotocol = (document.location.protocol == "https:") ? "https://" : "http://"; var wotbase = wotprotocol + "api.mywot.com/widgets"; var wotinject = function(src) { document.body.appendChild(document.createElement("script")).src = wotbase + "/" + src + ".js"; }; var wotjquery = typeof(jQuery) != "undefined"; if (!wotjquery) { wotinject("jquery"); } void(window.setTimeout(wotinject, 200, "ratingwidget")); I can see the APIs being loaded in the status bar, but it doesn't do anything at all. Is there any way to get this working?

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• Most efficient way of creating tree from adjacency list

  - by Jeff Meatball Yang

  I have an adjacency list of objects (rows loaded from SQL database with the key and it's parent key) that I need to use to build an unordered tree. It's guaranteed to not have cycles. This is taking wayyy too long (processed only ~3K out of 870K nodes in about 5 minutes). Running on my workstation Core 2 Duo with plenty of RAM. Any ideas on how to make this faster? public class StampHierarchy { private StampNode _root; private SortedList<int, StampNode> _keyNodeIndex; // takes a list of nodes and builds a tree // starting at _root private void BuildHierarchy(List<StampNode> nodes) { Stack<StampNode> processor = new Stack<StampNode>(); _keyNodeIndex = new SortedList<int, StampNode>(nodes.Count); // find the root _root = nodes.Find(n => n.Parent == 0); // find children... processor.Push(_root); while (processor.Count != 0) { StampNode current = processor.Pop(); // keep a direct link to the node via the key _keyNodeIndex.Add(current.Key, current); // add children current.Children.AddRange(nodes.Where(n => n.Parent == current.Key)); // queue the children foreach (StampNode child in current.Children) { processor.Push(child); nodes.Remove(child); // thought this might help the Where above } } } } public class StampNode { // properties: int Key, int Parent, string Name, List<StampNode> Children }

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• ASP.NET Session State Timeout Problem

  - by user314827

  I am trying to detect a session state timeout in my asp.net application and am unable to do so. I have a base class that derives from System.Web.UI.Page as follows:- public class BasePageSessionExpire : Page { override protected void OnInit(EventArgs e) { base.OnInit(e); if (Context.Session != null) { if (Session.IsNewSession) { string szCookieHeader = Request.Headers["Cookie"]; if ((null != szCookieHeader) && (szCookieHeader.IndexOf("ASP.NET_SessionId") > 0)) { Session.Abandon(); Response.Redirect("~/SessionExpired.aspx",true); } } } } } All the pages I need session state checking on derive from this base class instead of "System.Web.UI.Page". Also, all these pages have EnableSessionState="True". I have a blank Session_Start() method in my global.asax file if that is relevant at all. For some reason after the first request, the "Session.IsNewSession" property is always false. It is true only for the first request and then is always false. I have my timeout set to 1 minute. The session never seems to timeout. What am I missing here ? Thanks in advance.

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• QTcpServer not emiting signals

  - by Timothy Baldridge

  Okay, I'm sure this is simple, but I'm not seeing it: HTTPServer::HTTPServer(QObject *parent) : QTcpServer(parent) { connect(this, SIGNAL(newConnection()), this, SLOT(acceptConnection())); } void HTTPServer::acceptConnection() { qDebug() << "Got Connection"; QTcpSocket *clientconnection = this->nextPendingConnection(); connect(clientconnection, SIGNAL(disconnected()), clientconnection, SLOT(deleteLater())); HttpRequest *req = new HttpRequest(clientconnection, this); req->processHeaders(); delete req; } int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); HTTPServer http(0); http.listen(QHostAddress::Any, 8011); qDebug() << "Started: " << http.isListening() << http.serverAddress() << ":" << http.serverPort(); return a.exec(); } According to the docs my acceptConnection() slot should be called whenever there is a new connection. I can connect into this tcp port with a browser or telnet, and I don't get any errors, so I know it's listening, execution never goes to my acceptConnection() function? And yes my objects inherit from QObject, I've just stripped the code down to the essential parts above. There's no build errors....

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• How do I place widgets above and below a listview with Relative Layout

  - by Jay Askren

  I have a list view and want to put stuff both above(on the y axis) and below(y axis) it including images, text views, and a row of buttons. Below is a simplified version of what I am creating. Unfortunately the list covers(i.e. above on the z axis) the header so the header text is not visible instead of being underneath (on the y axis) <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:id="@+id/footer" android:text="footer" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_alignParentBottom="true" /> <ListView android:id="@+id/list_view" android:layout_height="fill_parent" android:layout_width="fill_parent" android:layout_above="@id/footer" android:background="#ff9999ff"/> <TextView android:id="@+id/header" android:text="header" android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_alignParentTop="true" android:layout_above="@id/list_view" android:baselineAlignBottom="false" /> </RelativeLayout> Here is the corresponding Activity class: public class SampleListActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.list_activity); } }

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• Custom code access permissions

  - by jaklucky

  Hi all, We have a server written in C# (Framework 3.5 SP1). Customers write client applications using our server API. Recently, we created several levels of license schemes like Basic, Intermediate and All. If you have Basic license then you can call few methods on our API. Similiarly if you have Intermediate you get some extra methods to call and if you have All then you can call all the methods. When server starts it gets the license type. Now in each method I have to check the type of license and decide whether to proceed further with the fucntion or return. For example, a method "InterMediateMethod()" can only be used by Intermediate License and All license. So I have to something like this. public void InterMediateMethod() { if(licenseType == "Basic") { throw new Exception("Access denined"); } } It looks like to me that it is very lame approach. Is there any better way to do this? Is there any declarative way to do this by defining some custom attributes? I looked at creating a custom "CodeAccessSecurityAttribute" but did not get a good success. Thank you, Suresh

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• ASP.NET page content doesn't change

  - by WtFudgE

  Hi, I created an application which has a menu where it's items are created dynamicly. The menu acts as a language menu. <body runat="server"> <form id="Form1" runat="server"> <table class="TableLayout"> <tr> <td class="TopNav" align="right"> <asp:Menu runat="server" ID="LanguageMenu" Orientation="Horizontal" OnMenuItemClick="LanguageMenu_MenuItemClick"> <LevelMenuItemStyles> <asp:MenuItemStyle CssClass="TopNavItem" /> </LevelMenuItemStyles> <StaticHoverStyle CssClass="TopNavItemHover" /> </asp:Menu> </td> </tr> ... I use session variables to set my current language. however if I click on the menu to change the session variable: public void LanguageMenu_MenuItemClick(Object sender, MenuEventArgs e) { Session["language"] = e.Item.Text; } The page reloads with the following code: sportsPath = String.Format(@"{0}{1}\Sports\", xmlPath, Session["language"]); //create LeftNavigation string[] sports = Directory.GetFiles(sportsPath); LeftNavigation.Items.Clear(); foreach (string sport in sports) { string text = sport.Replace(sportsPath, "").Replace(".xml", ""); MenuItem item = new MenuItem(); item.Text = text; LeftNavigation.Items.Add(item); } The thing is the content doesn't change, only after I click on something else. If I skip through my code after clicking on the menuItem I can see that it passes the code and it should change, however for some reason the page needs another extra trigger to modify it's content. I also see the page reloading so I don't understand why it's not changing immediatly. I guess I'm not understanding the asp.net logic just quite yet. What am I doing wrong?

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• DomainContext class is not created in a RIA services class library solution

  - by Konamiman

  I have created a RIA services class library project and things are not going as I expected. The problem is that when I add domain service classes to the server project, the corresponding domain context classes are not generated on the client project. I start by creating a new project of type WCF RIA services class library. The generated solution has two projects: RIAServicesLibrary1 (the Silverlight class library project) and RIAServicesLibrary1.Web (the class library that will hold the services). Then I add a new project item to RIAServicesLibrary1.Web of type DomainServiceClass. I add a sample method so that the resulting class code is: namespace RIAServicesLibrary1.Web { using System; using System.Collections.Generic; using System.ComponentModel; using System.ComponentModel.DataAnnotations; using System.Linq; using System.ServiceModel.DomainServices.Hosting; using System.ServiceModel.DomainServices.Server; // TODO: Create methods containing your application logic. [EnableClientAccess()] public class DomainService1 : DomainService { [Invoke] void DoSomething() { } } } Then I generate the whole solution and... nothing happens on the client project. The Generated_Code folder is empty, and the domain context object for the service is not here. Funny enough, if I add a new item of type Authentication domain service, it works as expected: the file RIAServicesLibrary1.Web.g.cs is created on the client project, containing the AuthenticationDomainService1 class as expected. So what's happening here? Am I doing something wrong? Note: I am using Visual Studio 2010 Ultimate RTM and WCF RIA services 1.0.

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