Search Results

Search found 41934 results on 1678 pages for 'outlook object model'.

Page 927/1678 | < Previous Page | 923 924 925 926 927 928 929 930 931 932 933 934  | Next Page >

  • Ctrl F5 exception and ignored on F5

    - by user575219
    I am getting this unhandled exception error shown: See screen shot. I am getting this error only when I run with Ctrl+ F5 and not in F5(debug mode).Not sure if this is helpful,my computer is a windows 7- 64bit and running a 32 bit build According to this discussion: How can I get WinForms to stop silently ignoring unhandled exceptions?, Adding Application.SetUnhandledExceptionMode(UnhandledExceptionMode.ThrowException) iwll cause Windows to ignore the error. EDIT: frmPlant_Load Event public partial class frmPlant : Form { DatabaseConnection _DbConnection = new DatabaseConnection(); string conString = ConfigurationManager.ConnectionStrings["RVESTConnString"].ConnectionString; SQLQueries _SQlQueries = new SQLQueries(); DataSet ds; SQLiteDataAdapter da; static DataTable gdt; int gSelectedPlant; string gSelectedPlantName = ""; bool ignoreSelChg = false; bool DataDirty = false; public frmPlant() { InitializeComponent(); } public frmPlant(int sSelectedPlant) { InitializeComponent(); } private void frmPlant_Load(object sender, EventArgs e) { ds = FillData(); gdt = ds.Tables[0]; bindingSource1.DataSource = gdt; dataGridView1.DataSource = bindingSource1; gSelectedPlant = StaticClass.GlobalValue; dataGridView1.AutoGenerateColumns = true; dataGridView1.Columns["PlantId"].Visible = false; dataGridView1.Columns["NSSS_Design"].Width = 70; } private DataSet FillData() { ignoreSelChg = true; SQLiteConnection con = new SQLiteConnection(conString); DataSet dPlant; try { con.Open(); SQLiteCommand cmd = new SQLiteCommand("select * from Plant", con); da = new SQLiteDataAdapter("select * from Plant", con); dPlant = new DataSet(); da.Fill(dPlant, "plant"); } catch (Exception ex) { throw ex; } finally { con.Close(); } return dPlant; } I should also add another concern: When I say continue here in the dialog, it works fine but leaves a background process running. I have to manually go and kill it in the task manager Question: Suppose I add this line in the Program.cs, will it ignore ANY- even genuine errors which need to be fixed? More Code: This dialog pops up on button click on the second screen- Initial Setup screen . The first being a splash screen. Initial setup takes me to the Plant form Here's the code for the initial setup screen public partial class frmInitialSetUp : Form { public frmInitialSetUp() { InitializeComponent(); } private void btnOK_Click(object sender, EventArgs e) { Program.fPlant = new frmPlant(); Program.fPlant.Show(); this.Hide(); } private void frmInitialSetUp_Load(object sender, EventArgs e) { Program.LoadAllForms(); } } } Program.cs static public void LoadAllForms() { try { Program.fInitialSetUp = new frmInitialSetUp(); Program.fPlant = new frmPlant(); Program.frm*** = new frm***(); Program.frm*** = new frm***(); Program.frm*** = new frm***(); } catch (Exception ex) { throw ex; } } On button click on the

    Read the article

  • Trouble with Code First DatabaseGenerated Composite Primary Key

    - by Nick Fleetwood
    This is a tad complicated, and please, I know all the arguments against natural PK's, so we don't need to have that discussion. using VS2012/MVC4/C#/CodeFirst So, the PK is based on the date and a corresponding digit together. So, a few rows created today would be like this: 20131019 1 20131019 2 And one created tomorrow: 20131020 1 This has to be automatically generated using C# or as a trigger or whatever. The user wouldn't input this. I did come up with a solution, but I'm having problems with it, and I'm a little stuck, hence the question. So, I have a model: public class MainOne { //[Key] //public int ID { get; set; } [Key][Column(Order=1)] [DatabaseGenerated(DatabaseGeneratedOption.None)] public string DocketDate { get; set; } [Key][Column(Order=2)] [DatabaseGenerated(DatabaseGeneratedOption.None)] public string DocketNumber { get; set; } [StringLength(3, ErrorMessage = "Corp Code must be three letters")] public string CorpCode { get; set; } [StringLength(4, ErrorMessage = "Corp Code must be four letters")] public string DocketStatus { get; set; } } After I finish the model, I create a new controller and views using VS2012 scaffolding. Then, what I'm doing is debugging to create the database, then adding the following instead of trigger after Code First creates the DB [I don't know if this is correct procedure]: CREATE TRIGGER AutoIncrement_Trigger ON [dbo].[MainOnes] instead OF INSERT AS BEGIN DECLARE @number INT SELECT @number=COUNT(*) FROM [dbo].[MainOnes] WHERE [DocketDate] = CONVERT(DATE, GETDATE()) INSERT INTO [dbo].[MainOnes] (DocketDate,DocketNumber,CorpCode,DocketStatus) SELECT (CONVERT(DATE, GETDATE ())),(@number+1),inserted.CorpCode,inserted.DocketStatus FROM inserted END And when I try to create a record, this is the error I'm getting: The changes to the database were committed successfully, but an error occurred while updating the object context. The ObjectContext might be in an inconsistent state. Inner exception message: The object state cannot be changed. This exception may result from one or more of the primary key properties being set to null. Non-Added objects cannot have null primary key values. See inner exception for details. Now, what's interesting to me, is that after I stop debugging and I start again, everything is perfect. The trigger fired perfectly, so the composite PK is unique and perfect, and the data in other columns is intact. My guess is that EF is confused by the fact that there is seemingly no value for the PK until AFTER an insert command is given. Also, appearing to back this theory, is that when I try to edit on of the rows, in debug, I get the following error: The number of primary key values passed must match number of primary key values defined on the entity. Same error occurs if I try to pull the 'Details' or 'Delete' function. Any solution or ideas on how to pull this off? I'm pretty open to anything, even creating a hidden int PK. But it would seem redundant. EDIT 21OCT13 [HttpPost] public ActionResult Create(MainOne mainone) { if (ModelState.IsValid) { var countId = db.MainOnes.Count(d => d.DocketDate == mainone.DocketNumber); //assuming that the date field already has a value mainone.DocketNumber = countId + 1; //Cannot implicitly convert type int to string db.MainOnes.Add(mainone); db.SaveChanges(); return RedirectToAction("Index"); } return View(mainone); } EDIT 21OCT2013 FINAL CODE SOLUTION For anyone like me, who is constantly searching for clear and complete solutions. if (ModelState.IsValid) { String udate = DateTime.UtcNow.ToString("yyyy-MM-dd"); mainone.DocketDate = udate; var ddate = db.MainOnes.Count(d => d.DocketDate == mainone.DocketDate); //assuming that the date field already has a value mainone.DocketNumber = ddate + 1; db.MainOnes.Add(mainone); db.SaveChanges(); return RedirectToAction("Index"); }

    Read the article

  • How get <body> element from the html which one have as a string

    - by Oleg
    Hello! I have a stupid problem. An jQuery.ajax request return me a full HTML text as a string. I receive such response in an case of error on the server. The server give me an error description which I want to place inside of the corresponding place of my current page. So now the question: I have a string contains full HTML document (which is not an XML!!! see <hr> element inside). I need to have for example only BODY part as a jQuery object. Then I could append it to the corresponding part of my page. Here is an example of the string which I need to parse: <html> <head> <title>The resource cannot be found.</title> <style> body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;} p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px} // ... </style> </head> <body bgcolor="white"> <span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1> <h2> <i>The resource cannot be found.</i> </h2></span> <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif "> <b> Description: </b>HTTP 404. The resource you are looking for ...bla bla.... <br><br> <b> Requested URL: </b>/ImportBPImagesInfos/Repository.svc/GetFullProfilimageSw<br><br> <hr width=100% size=1 color=silver> <b>Version Information:</b>&nbsp;Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1 </font> </body> </html> <!-- [HttpException]: A public action method &#39;.... at System.Web.Mvc.Controller.HandleUnknownAction(String actionName) at System.Web.Mvc.Controller.ExecuteCore() at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) at System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__4() at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.<MakeVoidDelegate>b__0() at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End() at System.Web.Mvc.Async.AsyncResultWrapper.End[TResult](IAsyncResult asyncResult, Object tag) at System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) -->

    Read the article

  • html button elemenents and onserverclick attribute in asp.net

    - by Adrian Adkison
    I have been experiencing some very strange behavior using html buttons with the onserverclick attribute. What I am trying to do is use jQuery to designate the default button on the page. By default button I mean the button that is "clicked" when a user hits enter. In testing, I would hit enter while in an input field and sometimes the intended "default" button was clicked and the server side method defined in the corresponding onserverclick attribute was hit. Other times a post back was made without hitting the server method. In order to isolate the issue I created a minimal test case and found some very interesting results. client side: <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Untitled Page</title> <script type="text/javascript" src="/scripts/jquery-1.4.min.js"></script> </head> <body> <form id="form1" runat="server"> <asp:Label ID="_response" runat="server"></asp:Label> <input id="input1" type="text" /> <input id="input2" type="text" /> <button id="first" type="button" class="defaultBtn" runat="server" onserverclick="ServerMethod1">test1</button> <button id="second" type="button" runat="server" onserverclick="ServerMethod2">test2</button> </form> <script type="text/javascript"> jQuery('form input').keyup( function(e) { if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) { $('button.defaultBtn').click(); return true; } } ); </script> </body> </html> server side: public partial class admin_spikes_ButtonSubmitTest : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void ServerMethod1(object sender, EventArgs e) { _response.Text = "server method1 was hit"; } protected void ServerMethod2(object sender, EventArgs e) { _response.Text = "server method2 was hit"; } } What I found was that everything worked as expected with this code except when I removed one of the input elements. In Firefox 3.6 and IE 8 when only one input exists on the page, hitting enter does not trigger the onserverclick, it makes a post back without even being jQuery "clicked" or actually "clicked". You can test this by starting with two inputs and clicking "test2". This will output "server method2 was hit". Then just hit enter and the output will be "server method1 was hit. Now take away an input and run the same test. Click "test2" see the results, then hit enter and you will see that nothing will change because the "test1" method was never hit. Does anyone know what is going on? Thanks p.s. Chrome worked as expected

    Read the article

  • Losing data after reading them correct from file

    - by user1388172
    i have the fallowing class of object with a class a data structure which i use in main combined. The ADT(abstract data type) is a linked list. After i read from file the input data and create and object which at print looks just fine after a print. after i push_back() the 3-rd int variable get initializated to 0. So example and code: Example: ex.in: 1 7 31 2 2 2 3 3 3 now i create objects from each line, which at print look as they suppose, but after push_back(): 1 7 0 2 2 0 3 3 0 Class.h: class RAngle { private: int x,y,l,b; public: int solution,prec; RAngle(){ x = y = solution = prec = b = l =0; } RAngle(int i,int j,int k){ x = i; y = j; l = k; solution = 0; prec=0; b=0; } friend ostream& operator << (ostream& out, const RAngle& ra){ out << ra.x << " " << ra.y << " " << ra.l <<endl; return out; } friend istream& operator >>( istream& is, RAngle& ra){ is >> ra.x; is >> ra.y; is >> ra.l; return is ; } }; ADT.h: template <class T> class List { private: struct Elem { T data; Elem* next; }; Elem* first; T pop_front(){ if (first!=NULL) { T aux = first->data; first = first->next; return aux; } T a; return a; } void push_back(T data){ Elem *n = new Elem; n->data = data; n->next = NULL; if (first == NULL) { first = n; return ; } Elem *current; for(current=first;current->next != NULL;current=current->next); current->next = n; } Main.cpp(after i call this function in main which prints object as they suppose to be the x var(from RAngle class) changes to 0 in all cases.) void readData(List <RAngle> &l){ RAngle r; ifstream f_in; f_in.open("ex.in",ios::in); for(int i=0;i<10;++i){ f_in >> r; cout << r; l.push_back(r); }

    Read the article

  • inserting new relationship data in core-data

    - by michael
    My app will allow users to create a personalised list of events from a large list of events. I have a table view which simply displays these events, tapping on one of them takes the user to the event details view, which has a button "add to my events". In this detailed view I own the original event object, retrieved via an NSFetchedResultsController and passed to the detailed view (via a table cell, the same as the core data recipes sample). I have no trouble retrieving/displaying information from this "event". I am then trying to add it to the list of MyEvents represented by a one to many (inverse) relationship: This code: NSManagedObjectContext *context = [event managedObjectContext]; MyEvents *myEvents = (MyEvents *)[NSEntityDescription insertNewObjectForEntityForName:@"MyEvents" inManagedObjectContext:context]; [myEvents addEventObject:event];//ERROR And this code (suggested below): //would this add to or overwrite the "list" i am attempting to maintain NSManagedObjectContext *context = [event managedObjectContext]; MyEvents *myEvents = (MyEvents *)[NSEntityDescription insertNewObjectForEntityForName:@"MyEvents" inManagedObjectContext:context]; NSMutableSet *myEvent = [myEvents mutableSetValueForKey:@"event"]; [myEvent addObject:event]; //ERROR Bot produce (at the line indicated by //ERROR): *** -[NSComparisonPredicate evaluateWithObject:]: message sent to deallocated instance Seems I may have missed something fundamental. I cant glean any more information through the use of debugging tools, with my knowledge of them. 1) Is this a valid way to compile and store an editable list like this? 2) Is there a better way? 3) What could possibly be the deallocated instance in error? -- I have now modified the Event entity to have a to-many relationship called "myEvents" which referrers to itself. I can add Events to this fine, and logging the object shows the correct memory addresses appearing for the relationship after a [event addMyEventObject:event];. The same failure happens right after this however. I am still at a loss to understand what is going wrong. This is the backtrace #0 0x01f753a7 in ___forwarding___ () #1 0x01f516c2 in __forwarding_prep_0___ () #2 0x01c5aa8f in -[NSFetchedResultsController(PrivateMethods) _preprocessUpdatedObjects:insertsInfo:deletesInfo:updatesInfo:sectionsWithDeletes:newSectionNames:treatAsRefreshes:] () #3 0x01c5d63b in -[NSFetchedResultsController(PrivateMethods) _managedObjectContextDidChange:] () #4 0x0002e63a in _nsnote_callback () #5 0x01f40005 in _CFXNotificationPostNotification () #6 0x0002bef0 in -[NSNotificationCenter postNotificationName:object:userInfo:] () #7 0x01bbe17d in -[NSManagedObjectContext(_NSInternalNotificationHandling) _postObjectsDidChangeNotificationWithUserInfo:] () #8 0x01c1d763 in -[NSManagedObjectContext(_NSInternalChangeProcessing) _createAndPostChangeNotification:withDeletions:withUpdates:withRefreshes:] () #9 0x01ba25ea in -[NSManagedObjectContext(_NSInternalChangeProcessing) _processRecentChanges:] () #10 0x01bdfb3a in -[NSManagedObjectContext processPendingChanges] () #11 0x01bd0957 in _performRunLoopAction () #12 0x01f4d252 in __CFRunLoopDoObservers () #13 0x01f4c65f in CFRunLoopRunSpecific () #14 0x01f4bc48 in CFRunLoopRunInMode () #15 0x0273878d in GSEventRunModal () #16 0x02738852 in GSEventRun () #17 0x002ba003 in UIApplicationMain () solution I managed to get to the bottom of this. I was fetching the event in question using a NSFetchedResultsController with a NSPredicate which I was releasing after I had the results. Retrieving values from the entities returned was no problem, but when I tried to update any of them it gave the error above. It should not have been released. oustanding part of my question What is a good way to create this sub list from a list of existing items in terms of a core data model. I don't believe its any of the ways I tried here. I need to show/edit it in another table view. Perhaps there is a better way than a boolean property on each event entity? The relationship idea above doesn't seem to work here (even though I can now create it). Cheers.

    Read the article

  • auth.getSession not working

    - by dC
    hi all, i am having troubles with calling auth.getSession in my proxy. It is being called from a iPhone connect client. When the proxy URL is invocated from the iphone, FB returns a 100 invalid parameter error to the proxy. However the 2nd attempt from iPhone yields success. Both times the proxy is doing the same code, only the auth_token is different. Doing a good search, shows that this is a problematic method. I have tried everything in code and even called in a iPhone expert to see if the problem is on the iPhone client. I have concentrated my efforts on the java api being the problem, however i believe the problem lies else where. I have done the following checked and tested java code checked and test iphone code checked FB application settings. any help is most appreciated. ------Here is my java code.--------- String api_secret = FacebookProperty.getString(FacebookConstants.PROPERTY_API_SECRET); String api_key = FacebookProperty.getString(FacebookConstants.PROPERTY_API_KEY); String call_back_url = FacebookProperty.getString(FacebookConstants.PROPERTY_CALLBACK_URL); int connectTimeout = 200000; //use the xml helper // Make sure the user is logged in to Facebook String authToken = request.getParameter("auth_token"); log.info( "FACEBOOK: auth_token?: " + authToken ); Map<String, Object> model = new HashMap<String, Object>(); model.put(FacebookConstants.MODEL_WELCOME_SELECTED, true); FacebookXmlRestClient facebookRestClient = new FacebookXmlRestClient(api_key, api_secret); boolean generateSessionSecret = true; //always true of connect client try{ facebookRestClient.setConnectTimeout(connectTimeout ); String authSessionKey = facebookRestClient.auth_getSession(authToken, true); } catch (Exception e) { log.log( Level.SEVERE, e.toString()); log.log( Level.SEVERE, e.getMessage()); } String rawResponse = facebookRestClient.getRawResponse(); log.info( rawResponse ); -------the iphone code is ----------- session = [FBSession sessionForApplication:myApiKey getSessionProxy:myURL delegate:self]; -----------the error is -------------- <error_response xmlns="http://api.facebook.com/1.0/" xmlns:xsi="http:// www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http:// api.facebook.com/1.0/ http://api.facebook.com/1.0/facebook.xsd"> <error_code>100</error_code> <error_msg>Invalid parameter</error_msg> <request_args list="true"> <arg> <key>api_key</key> <value>bf22a0512c8558a1656d73160507460b</value> </arg> <arg> <key>auth_token</key> <value>fcd1e597aca5c9ba43875cdd01221be5</value> </arg> <arg> <key>call_id</key> <value>1269066988055</value> </arg> <arg> <key>format</key> <value>xml</value> </arg> <arg> <key>generate_session_secret</key> <value>true</value> </arg> <arg> <key>method</key> <value>facebook.auth.getSession</value> </arg> <arg> <key>sig</key> <value>e9f477fd72adf74cd2de72528fd9aa72</value> </arg> <arg> <key>v</key> <value>1.0</value> </arg> </request_args> </error_response>

    Read the article

  • Magento Onepage Success Conversion Tracking Design Pattern

    - by user1734954
    My intent is to track conversions through multiple channels by inserting third party javascript (for example google analytics, optimizely, pricegrabber etc.) into the footer of onepage success . I've accomplished this by adding a block to the footer reference inside of the checkout success node within local.xml and everything works appropriately. My questions are more about efficiency and extensibility. It occurred to me that it would be better to combine all of the blocks into a single block reference and then use a various methods acting on a single call to the various related models to provide the data needed for insertion into the javascript for each of the conversion tracking scripts. Some examples of the common data that conversion tracking may rely on(pseudo): Order ID , Order Total, Order.LineItem.Name(foreach) and so on Currently for each of the scripts I've made a call to the appropriate model passing the customers last order id as the load value and the calling a get() assigning the return value to a variable and then iterating through the data to match the values with the expectations of the given third party service. All of the data should be pulled once when checkout is complete each third party services may expect different data in different formats Here is an example of one of the conversion tracking template files which loads at the footer of checkout success. $order = Mage::getModel('sales/order')->loadByIncrementId(Mage::getSingleton('checkout/session')->getLastRealOrderId()); $amount = number_format($order->getGrandTotal(),2); $customer = Mage::helper('customer')->getCustomer()->getData(); ?> <script type="text/javascript"> popup_email = '<?php echo($customer['email']);?>'; popup_order_number = '<?php echo $this->getOrderId() ?>'; </script> <!-- PriceGrabber Merchant Evaluation Code --> <script type="text/javascript" charset="UTF-8" src="https://www.pricegrabber.com/rating_merchrevpopjs.php?retid=<something>"></script> <noscript><a href="http://www.pricegrabber.com/rating_merchrev.php?retid=<something>" target=_blank> <img src="https://images.pricegrabber.com/images/mr_noprize.jpg" border="0" width="272" height="238" alt="Merchant Evaluation"></a></noscript> <!-- End PriceGrabber Code --> Having just a single piece of code like this is not that big of a deal, but we are doing similar things with a number of different third party services. Pricegrabber is one of the simpler examples. A more sophisticated tracking service expects a comma separated list of all of the product names, ids, prices, categories , order id etc. I would like to make it all more manageable so my idea to do the following: combine all of the template files into a single file Develop a helper class or library to deliver the data to the conversion template Goals Include Extensibility Minimal Model Calls Minimal Method Calls The Questions 1. Is a Mage helper the best route to take? 2. Is there any design pattern you may recommend for the "helper" class? 3. Why would this the design pattern you've chosen be best for this instance?

    Read the article

  • MVC Datatables Dialog Not staying where dialog opens

    - by Anthoney Hanks
    I have created a view that displays a datatable with a clickable link that opens a jQuery UI dialog box. The users wanted a search options (8 dropdowns to narrow the search) at top of page, followed by the datatable with the 100 viewable records. If I scroll down the datatable to the bottom viewable record, click the link to open the dialog box. The dialog opens relative to the link clicked, but the focus go back to the top of the page which causes the user to have scroll back down to the dialog box. Ok, I thought I would just set the focus to the dialog box. BUt it is being ignored which make me think that this is something within the MVC realm. I even tried to wrap the focus inside a ready function thinking it would be one of the last things process. When I define the dailog, it is pretty basic. I even tried to set the position attribute, but it did not change the problem. Has someone had this problem and can send me in the right direction? View building the datatable: <table id="navDatatables"> <tbody> @foreach (var detailsVM in Model.DetailsVMs) { <tr> <td class="standardTable"> <a href="#" onclick="return PVE_UseConfig.Options(@detailsVM.ConfigVersionId, @Model.UseConfigModeId);" class="smallLink">Options</a> </td> <td class="standardTable"> <a href="@Url.Content(@detailsVM.ViewerUrl)" target="_blank">@detailsVM.ConfigName</a> </td> <td class="standardTable">@detailsVM.ConfigType</td> <td class="standardTable">@detailsVM.ConfigVersionState</td> <td class="standardTable">@detailsVM.Organization</td> <td class="standardTable">@detailsVM.ProcessSet</td> <td class="standardTable">@detailsVM.ConfigVersionCaption</td> <td class="standardTable">@detailsVM.ConfigId</td> <td class="standardTable">@detailsVM.ConfigVersionId</td> <td class="standardTable">@detailsVM.ConfigOwnerName</td> <td class="standardTable">@detailsVM.ConfigVersionLastModified</td> </tr> } </tbody> </table> Dialog box code: Options: function (configVersionId, useConfigModeId) { var output = '#modalDialog1'; var postData = { configVersionId: configVersionId, useConfigModeId: useConfigModeId }; $('#modalDialog1').dialog("destroy"); $.ajax({ url: PVE_RootUrl + 'UseConfig/Options', type: 'POST', async: false, data: postData, success: function (result) { $(output).html(result); }, error: function (jqXHR, textStatus, errorThrown) { var text = jqXHR.responseText; var from = text.search("<body>") + 6; var to = text.search("</body>") - 7; $(output).html(text.substring(from, to)); } }); $(output).dialog({ title: "Configuration Options", modal: true, height: 550, width: 600, resizable: false, draggable: false }); },

    Read the article

  • SurfaceView drawn on top of other elements after coming back from specific activity

    - by spirytus
    I have an activity with video preview displayed via SurfaceView and other views positioned over it. The problem is when user navigates to Settings activity (code below) and comes back then the surfaceview is drawn on top of everything else. This does not happen when user goes to another activity I have, neither when user navigates outside of app eg. to task manager. Now, you see in code below that I have setContentVIew() call wrapped in conditionals so it is not called every time when onStart() is executed. If its not wrapped in if statements then all works fine, but its causing loosing lots of memory (5MB+) each time onStart() is called. I tried various combinations and nothing seems to work so any help would be much appreciated. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //Toast.makeText(this,"Create ", 2000).show(); // set 32 bit window (draw correctly transparent images) getWindow().getAttributes().format = android.graphics.PixelFormat.RGBA_8888; // set the layout of the screen based on preferences of the user sharedPref = PreferenceManager.getDefaultSharedPreferences(this); } public void onStart() { super.onStart(); String syncConnPref = null; syncConnPref = sharedPref.getString("screensLayouts", "default"); if(syncConnPref.contentEquals("default") && currentlLayout!="default") { setContentView(R.layout.fight_recorder_default); } else if(syncConnPref.contentEquals("simple") && currentlLayout!="simple") { setContentView(R.layout.fight_recorder_simple); } // I I uncomment line below so it will be called every time without conditionals above, it works fine but every time onStart() is called I'm losing 5+ MB memory (memory leak?). The preview however shows under the other elements exactly as I need memory leak makes it unusable after few times though // setContentView(R.layout.fight_recorder_default); if(getCamera()==null) { Toast.makeText(this,"Sorry, camera is not available and fight recording will not be permanently stored",2000).show(); // TODO also in here put some code replacing the background with something nice return; } // now we have camera ready and we need surface to display picture from camera on so // we instantiate CameraPreviw object which is simply surfaceView containing holder object. // holder object is the surface where the image will be drawn onto // this is where camera live cameraPreview will be displayed cameraPreviewLayout = (FrameLayout) findViewById(id.camera_preview); cameraPreview = new CameraPreview(this); // now we add surface view to layout cameraPreviewLayout.removeAllViews(); cameraPreviewLayout.addView(cameraPreview); // get layouts prepared for different elements (views) // this is whole recording screen, as big as screen available recordingScreenLayout=(FrameLayout) findViewById(R.id.recording_screen); // this is used to display sores as they are added, it displays like a path // each score added is a new text view simply and as user undos these are removed one by one allScoresLayout=(LinearLayout) findViewById(R.id.all_scores); // layout prepared for controls like record/stop buttons etc startStopLayout=(RelativeLayout) findViewById(R.id.start_stop_layout); // set up timer so it can be turned on when needed //fightTimer=new FightTimer(this); fightTimer = (FightTimer) findViewById(id.fight_timer); // get views for displaying scores score1=(TextView) findViewById(id.score1); score2=(TextView) findViewById(id.score2); advantages1=(TextView) findViewById(id.advantages1); advantages2=(TextView) findViewById(id.advantages2); penalties1=(TextView) findViewById(id.penalties1); penalties2=(TextView) findViewById(id.penalties2); RelativeLayout welcomeScreen=(RelativeLayout) findViewById(id.welcome_screen); Animation fadeIn = AnimationUtils.loadAnimation(this, R.anim.fade_in); welcomeScreen.startAnimation(fadeIn); Toast.makeText(this,"Start ", 2000).show(); animateViews(); } Settings activity is below, after coming back from this activity surfaceview is drawn on top of other elements. public class SettingsActivity extends PreferenceActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if(MyFirstAppActivity.getCamera()==null) { Toast.makeText(this,"Sorry, camera is not available",2000).show(); return; } addPreferencesFromResource(R.xml.preferences); } }

    Read the article

  • Constructor ambiguous quesiton

    - by Crystal
    I'm trying to create a simple date class, but I get an error on my main file that says, "call of overloaded Date() is ambiguous." I'm not sure why since I thought as long as I had different parameters for my constructor, I was ok. Here is my code: header file: #ifndef DATE_H #define DATE_H using std::string; class Date { public: static const int monthsPerYear = 12; // num of months in a yr Date(int = 1, int = 1, int = 1900); // default constructor Date(); // uses system time to create object void print() const; // print date in month/day/year format ~Date(); // provided to confirm destruction order string getMonth(int month) const; // gets month in text format private: int month; // 1 - 12 int day; // 1 - 31 int year; // any year int checkDay(int) const; }; #endif .cpp file #include <iostream> #include <iomanip> #include <string> #include <ctime> #include "Date.h" using namespace std; Date::Date() { time_t seconds = time(NULL); struct tm* t = localtime(&seconds); month = t->tm_mon; day = t->tm_mday; year = t->tm_year; } Date::Date(int mn, int dy, int yr) { if (mn > 0 && mn <= monthsPerYear) month = mn; else { month = 1; // invalid month set to 1 cout << "Invalid month (" << mn << ") set to 1.\n"; } year = yr; // could validate yr day = checkDay(dy); // validate the day // output Date object to show when its constructor is called cout << "Date object constructor for date "; print(); cout << endl; } void Date::print() const { string str; cout << month << '/' << day << '/' << year << '\n'; // new code for HW2 cout << setfill('0') << setw(3) << day; // prints in ddd cout << " " << year << '\n'; // yyyy format str = getMonth(month); // prints in month (full word), day, year cout << str << " " << day << ", " << year << '\n'; } and my main.cpp #include <iostream> #include "Date.h" using std::cout; int main() { Date date1(4, 30, 1980); date1.print(); cout << '\n'; Date date2; date2.print(); }

    Read the article

  • Why does Saxon evaluate the result-document URI to be the same?

    - by Jan
    My XSL source document looks like this <Topology> <Environment> <Id>test</Id> <Machines> <Machine> <Id>machine1</Id> <modules> <module>m1</module> <module>m2</module> </modules> </Machine> </Machines> </Environment> <Environment> <Id>production</Id> <Machines> <Machine> <Id>machine1</Id> <modules> <module>m1</module> <module>m2</module> </modules> </Machine> <Machine> <Id>machine2</Id> <modules> <module>m3</module> <module>m4</module> </modules> </Machine> </Machines> </Environment> </Topology> I want to create one result-document per machine, so I use the following stylesheet giving modelDir as path for the result-documents as parameter. <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes" name="myXML" doctype-system="http://java.sun.com/dtd/properties.dtd"/> <xsl:template match="/"> <xsl:for-each-group select="/Topology/Environment/Machines/Machine" group-by="Id"> <xsl:variable name="machine" select="Id"/> <xsl:variable name="filename" select="concat($modelDir,$machine,'.xml')" /> <xsl:message terminate="no">Writing machine description to <xsl:value-of select="$filename"/></xsl:message> <xsl:result-document href="$filename" format="myXML"> <xsl:variable name="currentMachine" select="Id"/> <xsl:for-each select="current-group()/LogicalHosts/LogicalHost"> <xsl:variable name="environment" select="normalize-space(../../../../Id)"/> <xsl:message terminate="no">Module <xsl:value-of select="."/> for <xsl:value-of select="$environment"/></xsl:message> </xsl:for-each> </xsl:result-document> </xsl:for-each-group> </xsl:template> As my messages show me this seems to work fine - if saxon would not evaluate the URI of the result-document to be the same and thus give the following output. Writing machine description to target/build/model/m1.xml Module m1 for test Module m2 for test Module m1 for production Module m2 for production Writing machine description to target/build/model/m2.xml Error at xsl:result-document on line 29 of file:/C:/Projekte/.../machine.xsl: XTDE1490: Cannot write more than one result document to the same URI, or write to a URI that has been read: file:/C:/Projekte/.../$filename file:/C:/Projekte/.../machine.xsl(29,-1) : here Cannot write more than one result document to the same URI, or write to a URI that has been read: file:/C:/Projekte/.../$filename ; SystemID: file:/C:/Projekte/.../machine.xsl; Line#: 29; Column#: -1 net.sf.saxon.trans.DynamicError: Cannot write more than one result document to the same URI, or write to a URI that has been read: file:/C:/Projekte/.../$filename at net.sf.saxon.instruct.ResultDocument.processLeavingTail(ResultDocument.java:300) at net.sf.saxon.instruct.Block.processLeavingTail(Block.java:365) at net.sf.saxon.instruct.Instruction.process(Instruction.java:91) Any ideas on how to solve this?

    Read the article

  • Can't mass-assign protected attributes -- unsolved issue

    - by nfriend21
    I have read about 10 different posts here about this problem, and I have tried every single one and the error will not go away. So here goes: I am trying to have a nested form on my users/new page, where it accepts user-attributes and also company-attributes. When you submit the form: Here's what my error message reads: ActiveModel::MassAssignmentSecurity::Error in UsersController#create Can't mass-assign protected attributes: companies app/controllers/users_controller.rb:12:in `create' Here's the code for my form: <%= form_for @user do |f| %> <%= render 'shared/error_messages', object: f.object %> <%= f.fields_for :companies do |c| %> <%= c.label :name, "Company Name"%> <%= c.text_field :name %> <% end %> <%= f.label :name %> <%= f.text_field :name %> <%= f.label :email %> <%= f.text_field :email %> <%= f.label :password %> <%= f.password_field :password %> <%= f.label :password_confirmation %> <%= f.password_field :password_confirmation %> <br> <% if current_page?(signup_path) %> <%= f.submit "Sign Up", class: "btn btn-large btn-primary" %> Or, <%= link_to "Login", login_path %> <% else %> <%= f.submit "Update User", class: "btn btn-large btn-primary" %> <% end %> <% end %> Users Controller: class UsersController < ApplicationController def index @user = User.all end def new @user = User.new end def create @user = User.create(params[:user]) if @user.save session[:user_id] = @user.id #once user account has been created, a session is not automatically created. This fixes that by setting their session id. This could be put into Controller action to clean up duplication. flash[:success] = "Your account has been created!" redirect_to tasks_path else render 'new' end end def show @user = User.find(params[:id]) @tasks = @user.tasks end def edit @user = User.find(params[:id]) end def update @user = User.find(params[:id]) if @user.update_attributes(params[:user]) flash[:success] = @user.name.possessive + " profile has been updated" redirect_to @user else render 'edit' end #if @task.update_attributes params[:task] #redirect_to users_path #flash[:success] = "User was successfully updated." #end end def destroy @user = User.find(params[:id]) unless current_user == @user @user.destroy flash[:success] = "The User has been deleted." end redirect_to users_path flash[:error] = "Error. You can't delete yourself!" end end Company Controller class CompaniesController < ApplicationController def index @companies = Company.all end def new @company = Company.new end def edit @company = Company.find(params[:id]) end def create @company = Company.create(params[:company]) #if @company.save #session[:user_id] = @user.id #once user account has been created, a session is not automatically created. This fixes that by setting their session id. This could be put into Controller action to clean up duplication. #flash[:success] = "Your account has been created!" #redirect_to tasks_path #else #render 'new' #end end def show @comnpany = Company.find(params[:id]) end end User model class User < ActiveRecord::Base has_secure_password attr_accessible :name, :email, :password, :password_confirmation has_many :tasks, dependent: :destroy belongs_to :company accepts_nested_attributes_for :company validates :name, presence: true, length: { maximum: 50 } VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false } validates :password, length: { minimum: 6 } #below not needed anymore, due to has_secure_password #validates :password_confirmation, presence: true end Company Model class Company < ActiveRecord::Base attr_accessible :name has_and_belongs_to_many :users end Thanks for your help!!

    Read the article

  • JavaScript String Library - Hitting a Minor Roadblock

    - by OneNerd
    Ok - am trying to create a string library that contains a handful of useful things missing from JavaScript. Here is what I have so far: ;function $__STRING__$(in_string) { /* internal functions */ this.s = in_string; this.toString = function(){return this.s;}; /******* these functions CAN be chained (they return the $__STRING__$ object) ******/ this.uppercase = function(){this.s = this.s.toUpperCase(); return this;}; this.lowercase = function(){this.s = this.s.toLowerCase(); return this;}; this.trim = function(){this.s = this.s.replace(/^\s+|\s+$/g,""); return this;}; this.ltrim = function(){this.s = this.s.replace(/^\s+/,""); return this;}; this.rtrim = function(){this.s = this.s.replace(/\s+$/,""); return this;}; this.striptags = function(){this.s = this.s.replace(/<\/?[^>]+(>|$)/g, ""); return this;}; this.escapetags = function(){this.s = this.s.replace(/</g,"<").replace(/>/g,">"); return this;}; this.unescapetags = function(){this.s = this.s.replace(/</g,"<").replace(/>/g,">"); return this;}; this.underscorize = function(){this.s = this.s.replace(/ /g,"_"); return this;}; this.dasherize = function(){this.s = this.s.replace(/ /g,"-"); return this;}; this.spacify = function(){this.s = this.s.replace(/_/g," "); return this;}; this.left = function(length){this.s = this.s.substring(length,0); return this;}; this.right = function(length){this.s = this.s.substring(this.s.length,this.s.length-length); return this;}; this.shorten = function(length){if(this.s.length<=length){return this.s;}else{this.left(this.s,length)+"..."; return this;}}; this.mid = function(start,length){return this.s.substring(start,(length+start));}; this._down = function(){return this.s;}; // breaks chain, but lets you run core js string functions /******* these functions CANNOT be chained (they do not return the $__STRING__$ object) ******/ this.contains = function(needle){if(this.s.indexOf(needle)!==-1){return true;}else{return false;}}; this.startswith = function(needle){if(this.left(this.s,needle.length)==needle){return true;}else{return false;}}; this.endswith = function(needle){if(this.right(this.s,needle.length)==needle){return true;}else{return false;};}; } function $E(in_string){return new $__STRING__$(in_string);} String.prototype._enhance = function(){return new $__STRING__$(this);}; String.prototype._up = function(){return new $__STRING__$(this);}; It works fairly well, and I can chain commands etc. I set it up so I can cast a string as an enhanced string these 2 ways: $E('some string'); 'some string'._enhance(); However, each time I want to use a built-in string method, I need to convert it back to a string first. So for now, I put in _down() and _up() methods like so: alert( $E("hello man").uppercase()._down().replace("N", "Y")._up().dasherize() ); alert( "hello man"._enhance().uppercase()._down().replace("N", "Y")._up().dasherize() ); It works fine, but what I really want to do it be able to use all of the built-in functions a string can use. I realize I can just replicate each function inside my object, but I was hoping there was a simpler way. So question is, is there an easy way to do that? Thanks -

    Read the article

  • How to make condition inside getView of Custom BaseAdapter

    - by user1501150
    I want to make a Custom ListView with Custom BaseAdapter, where the the status=1,I want to show a CheckBox, and else I want to show a textView.. My given condition is: if (NewtheStatus == 1) { alreadyOrderText .setVisibility(TextView.GONE); } else{ checkBox.setVisibility(CheckBox.GONE); } But Some times I obtain some row that has neither checkBox nor TextView. The Code of my Custom BaseAdapter is given below . private class MyCustomAdapter extends BaseAdapter { private static final int TYPE_ITEM = 0; private static final int TYPE_ITEM_WITH_HEADER = 1; // private static final int TYPE_MAX_COUNT = TYPE_SEPARATOR + 1; private ArrayList<WatchListAllEntity> mData = new ArrayList(); private LayoutInflater mInflater; private ArrayList<WatchListAllEntity> items = new ArrayList<WatchListAllEntity>(); public MyCustomAdapter(Context context, ArrayList<WatchListAllEntity> items) { mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public void addItem(WatchListAllEntity watchListAllEntity) { // TODO Auto-generated method stub items.add(watchListAllEntity); } public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; final int position1 = position; if (v == null) { LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.listitempict, null); } watchListAllEntity = new WatchListAllEntity(); watchListAllEntity = items.get(position); Log.i("position: iteamsLength ", position + ", " + items.size()); if (watchListAllEntity != null) { ImageView itemImage = (ImageView) v .findViewById(R.id.imageviewproduct); if (watchListAllEntity.get_thumbnail_image_url1() != null) { Drawable image = ImageOperations(watchListAllEntity .get_thumbnail_image_url1().replace(" ", "%20"), "image.jpg"); // itemImage.setImageResource(R.drawable.icon); if (image != null) { itemImage.setImageDrawable(image); itemImage.setAdjustViewBounds(true); } else { itemImage.setImageResource(R.drawable.iconnamecard); } Log.i("status_ja , status", watchListAllEntity.get_status_ja() + " ," + watchListAllEntity.getStatus()); int NewtheStatus = Integer.parseInt(watchListAllEntity .getStatus()); CheckBox checkBox = (CheckBox) v .findViewById(R.id.checkboxproduct); TextView alreadyOrderText = (TextView) v .findViewById(R.id.alreadyordertext); if (NewtheStatus == 1) { alreadyOrderText .setVisibility(TextView.GONE); } else{ checkBox.setVisibility(CheckBox.GONE); } Log.i("Loading ProccardId: ", watchListAllEntity.get_proc_card_id() + ""); checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { WatchListAllEntity watchListAllEntity2 = items .get(position1); Log.i("Position: ", position1 + ""); // TODO Auto-generated method stub if (isChecked) { Constants.orderList.add(watchListAllEntity2 .get_proc_card_id()); Log.i("Proc Card Id Add: ", watchListAllEntity2 .get_proc_card_id() + ""); } else { Constants.orderList.remove(watchListAllEntity2 .get_proc_card_id()); Log.i("Proc Card Id Remove: ", watchListAllEntity2.get_proc_card_id() + ""); } } }); } } return v; } private Drawable ImageOperations(String url, String saveFilename) { try { InputStream is = (InputStream) this.fetch(url); Drawable d = Drawable.createFromStream(is, "src"); return d; } catch (MalformedURLException e) { return null; } catch (IOException e) { return null; } } public Object fetch(String address) throws MalformedURLException, IOException { URL url = new URL(address); Object content = url.getContent(); return content; } public int getCount() { // TODO Auto-generated method stub int sizef=items.size(); Log.i("Size", sizef+""); return items.size(); } public Object getItem(int position) { // TODO Auto-generated method stub return items.get(position); } public long getItemId(int position) { // TODO Auto-generated method stub return position; } }

    Read the article

  • Getting text position while parsing pdf with Quartz 2D

    - by Koteg
    Hi guys, another question regarding pdf parsing... Just read PDF Reference version 1.7 "5.3.1 Text-Positioning Operators" and I am a little bit confused. I wrote some code to get transformation matrix and initial text position. CGPDFOperatorTableSetCallback (table, "MP", &op_MP);//Define marked-content point CGPDFOperatorTableSetCallback (table, "DP", &op_DP);//Define marked-content point with property list CGPDFOperatorTableSetCallback (table, "BMC", &op_BMC);//Begin marked-content sequence CGPDFOperatorTableSetCallback (table, "BDC", &op_BDC);//Begin marked-content sequence with property list CGPDFOperatorTableSetCallback (table, "EMC", &op_EMC);//End marked-content sequence //Text State operators CGPDFOperatorTableSetCallback(table, "Tc", &op_Tc); CGPDFOperatorTableSetCallback(table, "Tw", &op_Tw); CGPDFOperatorTableSetCallback(table, "Tz", &op_Tz); CGPDFOperatorTableSetCallback(table, "TL", &op_TL); CGPDFOperatorTableSetCallback(table, "Tf", &op_Tf); CGPDFOperatorTableSetCallback(table, "Tr", &op_Tr); CGPDFOperatorTableSetCallback(table, "Ts", &op_Ts); //text showing operators CGPDFOperatorTableSetCallback(table, "TJ", &op_TJ); CGPDFOperatorTableSetCallback(table, "Tj", &op_Tj); CGPDFOperatorTableSetCallback(table, "'", &op_apostrof); CGPDFOperatorTableSetCallback(table, "\"", &op_double_apostrof); //text positioning operators CGPDFOperatorTableSetCallback(table, "Td", &op_Td); CGPDFOperatorTableSetCallback(table, "TD", &op_TD); CGPDFOperatorTableSetCallback(table, "Tm", &op_Tm); CGPDFOperatorTableSetCallback(table, "T*", &op_T); //text object operators CGPDFOperatorTableSetCallback(table, "BT", &op_BT);//Begin text object CGPDFOperatorTableSetCallback(table, "ET", &op_ET);//End text object So this is the output after application lunch: 2010-09-02 15:09:23.041 testSearch[8251:207] op_BT begin Integer value: 0 2010-09-02 15:09:23.043 testSearch[8251:207] op_BT end 2010-09-02 15:09:23.043 testSearch[8251:207] op_Tf begin Integer value: 1 2010-09-02 15:09:23.044 testSearch[8251:207] op_Tf end 2010-09-02 15:09:23.044 testSearch[8251:207] op_Tm begin Float value: 557.364197 2010-09-02 15:09:23.045 testSearch[8251:207] op_Tm end 2010-09-02 15:09:23.045 testSearch[8251:207] op_TJ begin 2010-09-02 15:09:23.046 testSearch[8251:207] Array string value [0]: F 2010-09-02 15:09:23.046 testSearch[8251:207] Array integer value [1]: 94985208 2010-09-02 15:09:23.047 testSearch[8251:207] Array string value [2]: r 2010-09-02 15:09:23.047 testSearch[8251:207] Array integer value [3]: 94985208 2010-09-02 15:09:23.048 testSearch[8251:207] Array string value [4]: o 2010-09-02 15:09:23.048 testSearch[8251:207] Array integer value [5]: 94985208 2010-09-02 15:09:23.049 testSearch[8251:207] Array string value [6]: m s 2010-09-02 15:09:23.049 testSearch[8251:207] Array integer value [7]: 94985208 2010-09-02 15:09:23.049 testSearch[8251:207] Array string value [8]: a 2010-09-02 15:09:23.050 testSearch[8251:207] Array integer value [9]: 94985208 2010-09-02 15:09:23.050 testSearch[8251:207] Array string value [10]: m 2010-09-02 15:09:23.051 testSearch[8251:207] Array integer value [11]: 94985208 2010-09-02 15:09:23.051 testSearch[8251:207] Array string value [12]: p 2010-09-02 15:09:23.052 testSearch[8251:207] Array integer value [13]: 94985208 2010-09-02 15:09:23.053 testSearch[8251:207] Array string value [14]: l 2010-09-02 15:09:23.054 testSearch[8251:207] Array integer value [15]: 94985208 2010-09-02 15:09:23.055 testSearch[8251:207] Array string value [16]: e t 2010-09-02 15:09:23.055 testSearch[8251:207] Array integer value [17]: 94985208 2010-09-02 15:09:23.057 testSearch[8251:207] Array string value [18]: o r 2010-09-02 15:09:23.057 testSearch[8251:207] Array integer value [19]: 94985208 2010-09-02 15:09:23.058 testSearch[8251:207] Array string value [20]: e 2010-09-02 15:09:23.058 testSearch[8251:207] Array integer value [21]: 94985208 2010-09-02 15:09:23.059 testSearch[8251:207] Array string value [22]: s 2010-09-02 15:09:23.059 testSearch[8251:207] Array integer value [23]: 94985208 2010-09-02 15:09:23.060 testSearch[8251:207] Array string value [24]: u 2010-09-02 15:09:23.061 testSearch[8251:207] Array integer value [25]: 94985208 2010-09-02 15:09:23.061 testSearch[8251:207] Array string value [26]: l 2010-09-02 15:09:23.062 testSearch[8251:207] Array integer value [27]: 94985208 2010-09-02 15:09:23.062 testSearch[8251:207] Array string value [28]: t 2010-09-02 15:09:23.063 testSearch[8251:207] op_TJ end If someone is familiar with text matrix and text positioning operators it would be nice to explain how all those thing work. How to calculate text position (or glyph?) using Tm (transformation matrix and other data)?

    Read the article

  • Inconsistent accessibility

    - by user1312412
    I am getting the following error Inconsistent accessibility: parameter type 'Db.Form1.ConnectionString' is less accessible than method 'Db.Form1.BuildConnectionString(Db.Form1.ConnectionString)' //Name spaces using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using Microsoft.VisualBasic; using System.Collections; using System.Diagnostics; using System.Data.OleDb; using System.IO; using System.Drawing.Printing; // namespace Db { public partial class Form1 : Form { public Form1() { InitializeComponent(); } public void SetBusy() { this.Cursor = Cursors.WaitCursor; Application.DoEvents(); } public void SetFree() { this.Cursor = Cursors.Default; Application.DoEvents(); } //connection string into parts struct ConnectionString { public string Provider; public string DataSource; public string UserId; public string Password; public string Database; } //Declare public string BuildConnectionString(ConnectionString connStr) ------> getting error here { string[] parts = new string[5]; parts[0] = "Provider=" + connStr.Provider; parts[1] = "Data Source=" + connStr.DataSource; parts[2] = "User Id=" + connStr.UserId; parts[3] = "Password=" + connStr.Password; parts[4] = "Initial Catalog=" + connStr.Database; return string.Join(";", parts); } // settings public bool IsValidConnectionForPrinting() { SetBusy(); ConnectionString connStr = new ConnectionString(); connStr.Provider = cboProvider.Text; connStr.DataSource = cboDataSource.Text; connStr.UserId = txtUserId.Text; connStr.Password = txtPassword.Text; connStr.Database = cboDatabase.Text; //connection string to database string connectionString = BuildConnectionString(connStr); OleDbConnection conn = new OleDbConnection(connectionString); try { conn.Open(); OleDbCommand cmd = conn.CreateCommand; cmd.CommandType = CommandType.TableDirect; cmd.CommandText = "vw_pr_DL"; cmd.ExecuteScalar(); cmd.CommandText = "vw_pr_VR"; cmd.ExecuteScalar(); //cmd.CommandText = "vw_pr_VR" //cmd.ExecuteScalar() conn.Close(); } //Exception messages catch (Exception ex) { SetFree(); if (ex.Message.StartsWith("Invalid object name")) { MessageBox.Show(ex.Message.Replace("Invalid object name", "Table or view not found"), "Connection Test"); } else { MessageBox.Show(ex.GetBaseException().Message, "Connection Test"); } return false; } SetFree(); return true; } // when user click testbutton private void btnConnTest_Click(object sender, EventArgs e) { if (IsValidConnectionForPrinting()) { MessageBox.Show("Connection succeeded", "Connection Test"); } }

    Read the article

  • Android app hanging, sometimes until Force Close / Wait dialog appears

    - by fredley
    I'm making an app that records uncompressed (wav format) audio. I'm using this class to actually record the audio. Currently, my application records fine (I can play the file), however when I click the button to stop the recording, the app hangs for 10 seconds or so, with no log output or any signs of life. Finally it comes round, dumps a load of errors into the log, updates the UI etc. I'm using AsyncTasks to try and avoid this kind of thing but it's not working. Here's my code: //Called on clicks of the record button. rar is the instance of RehearsalAudioRecorder private OnClickListener RecordListener = new OnClickListener(){ @Override public void onClick(View v) { Log.d("Record","Click"); if (recording){ new stopRecordingTask().execute(rar,null,null); startStop.setText("Record"); statusBar.setText("Recording Finished, ready to Encode"); }else{ recording = true; new startRecordingTask().execute(rar,null,null); startStop.setText("Stop"); statusBar.setText("Recording Started"); } } }; private class startRecordingTask extends AsyncTask<RehearsalAudioRecorder,Void,Void>{ @Override protected Void doInBackground(RehearsalAudioRecorder... rs) { RehearsalAudioRecorder r = rs[0]; r.setOutputFile("/sdcard/rarOut.wav"); r.prepare(); r.start(); return null; } } private class stopRecordingTask extends AsyncTask<RehearsalAudioRecorder,Void,Void>{ @Override protected Void doInBackground(RehearsalAudioRecorder... rs) { RehearsalAudioRecorder r = rs[0]; r.stop(); r.reset(); return null; } } In Logcat, I always get output like this, which has me stumped. I have no idea what's causing it (I'm logging the RehearsalAudioRecorder class, and it's being started/stopped correctly by the button clicks. This output occurs after the log output for the button click and correct stop() method call) 12-19 11:59:11.172: ERROR/AudioRecord-JNI(22662): Unable to retrieve AudioRecord object, can't record 12-19 11:59:11.172: ERROR/uk.ac.cam.tfmw2.steg.RehearsalAudioRecorder(22662): Error occured in updateListener, recording is aborted 12-19 11:59:11.172: ERROR/uk.ac.cam.tfmw2.steg.RehearsalAudioRecorder(22662): stop() called on illegal state: STOPPED 12-19 11:59:11.172: ERROR/AudioRecord-JNI(22662): Unable to retrieve AudioRecord object, can't record 12-19 11:59:11.172: ERROR/uk.ac.cam.tfmw2.steg.RehearsalAudioRecorder(22662): Error occured in updateListener, recording is aborted 12-19 11:59:11.172: ERROR/uk.ac.cam.tfmw2.steg.RehearsalAudioRecorder(22662): stop() called on illegal state: ERROR 12-19 11:59:11.172: ERROR/AudioRecord-JNI(22662): Unable to retrieve AudioRecord object, can't record 12-19 11:59:11.172: ERROR/uk.ac.cam.tfmw2.steg.RehearsalAudioRecorder(22662): Error occured in updateListener, recording is aborted 12-19 11:59:11.172: ERROR/uk.ac.cam.tfmw2.steg.RehearsalAudioRecorder(22662): stop() called on illegal state: ERROR ... 10 or more times I've been fiddling with this all day and I'm not getting anywhere, any input would be greatly appreciated. Update I've replace the AsyncTasks with Threads, still doesn't work, the app completely hangs when I click record, despite the fact the Log indicates there's nothing going on in the main thread. Still completely stumped.

    Read the article

  • How to create a dynamically built Context Menu clickEvent

    - by Chris
    C#, winform I have a DataGridView and a context menu that opens when you right click a specific column. What shows up in the context menu is dependant on what's in the field clicked on - paths to multiple files (the paths are manipulated to create a full UNC path to the correct file). The only problem is that I can't get the click working. I did not drag and drop the context menu from the toolbar, I created it programmically. I figured that if I can get the path (let's call it ContextMenuChosen) to show up in MessageBox.Show(ContextMenuChosen); I could set the same to System.Diagnostics.Process.Start(ContextMenuChosen); The Mydgv_MouseUp event below actually works to the point where I can get it to fire off MessageBox.Show("foo!"); when something in the context menu is selected but that's where it ends. I left in a bunch of comments below showing what I've tried when it one of the paths are clicked. Some result in empty strings, others error (Object not set to an instance...). I searched code all day yesterday but couldn't find another way to hook up a dynamically built Context Menu clickEvent. Code and comments: ContextMenu m = new ContextMenu(); // SHOW THE RIGHT CLICK MENU private void Mydgv_MouseClick(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Right) { int currentMouseOverCol = Mydgv.HitTest(e.X, e.Y).ColumnIndex; int currentMouseOverRow = Mydgv.HitTest(e.X, e.Y).RowIndex; if (currentMouseOverRow >= 0 && currentMouseOverCol == 6) { string[] paths = myPaths.Split(';'); foreach (string path in paths) { string UNCPath = "\\\\1.1.1.1\\c$\\MyPath\\"; string FilePath = path.Replace("c:\\MyPath\\", @""); m.MenuItems.Add(new MenuItem(UNCPath + FilePath)); } } m.Show(Mydgv, new Point(e.X, e.Y)); } } // SELECTING SOMETHING IN THE RIGHT CLICK MENU private void Mydgv_MouseUp(object sender, MouseEventArgs e) { DataGridView.HitTestInfo hitTestInfo; if (e.Button == MouseButtons.Right) { hitTestInfo = Mydgv.HitTest(e.X, e.Y); // If column is first column if (hitTestInfo.Type == DataGridViewHitTestType.Cell && hitTestInfo.ColumnIndex == 6) { //MessageBox.Show(m.ToString()); ////MessageBox.Show(m.Tag.ToString()); //MessageBox.Show(m.Name.ToString()); //MessageBox.Show(m.MenuItems.ToString()); ////MessageBox.Show(m.MdiListItem.ToString()); // MessageBox.Show(m.Name); //if (m.MenuItems.Count > 0) //MessageBox.Show(m.MdiListItem.Text); //MessageBox.Show(m.ToString()); //MessageBox.Show(m.MenuItems.ToString()); //Mydgv.ContextMenu.Show(m.Name.ToString()); //MessageBox.Show(ContextMenu.ToString()); //MessageBox.Show(ContextMenu.MenuItems.ToString()); //MenuItem.text //MessageBox.Show(this.ContextMenu.MenuItems.ToString()); } m.MenuItems.Clear(); } } I'm very close to completing this so any help would be much appreciated. Thanks, ~ Chris

    Read the article

  • Algorithm for dragging objects on a fixed grid

    - by FlyingStreudel
    Hello, I am working on a program for the mapping and playing of the popular tabletop game D&D :D Right now I am working on getting the basic functionality like dragging UI elements around, snapping to the grid and checking for collisions. Right now every object when released from the mouse immediately snaps to the nearest grid point. This causes an issue when something like a player object snaps to a grid point that has a wall -or other- adjacent. So essentially when the player is dropped they wind up with some of the wall covering them. This is fine and working as intended, however the problem is that now my collision detection is tripped whenever you try to move this player because its sitting underneath a wall and because of this you cant drag the player anymore. Here is the relevant code: void UIObj_MouseMove(object sender, MouseEventArgs e) { blocked = false; if (dragging) { foreach (UIElement o in ((Floor)Parent).Children) { if (o.GetType() != GetType() && o.GetType().BaseType == typeof(UIObj) && Math.Sqrt(Math.Pow(((UIObj)o).cX - cX, 2) + Math.Pow(((UIObj)o).cY - cY, 2)) < Math.Max(r.Height + ((UIObj)o).r.Height, r.Width + ((UIObj)o).r.Width)) { double Y = e.GetPosition((Floor)Parent).Y; double X = e.GetPosition((Floor)Parent).X; Geometry newRect = new RectangleGeometry(new Rect(Margin.Left + (X - prevX), Margin.Top + (Y - prevY), Margin.Right + (X - prevX), Margin.Bottom + (Y - prevY))); GeometryHitTestParameters ghtp = new GeometryHitTestParameters(newRect); VisualTreeHelper.HitTest(o, null, new HitTestResultCallback(MyHitTestResultCallback), ghtp); } } if (!blocked) { Margin = new Thickness(Margin.Left + (e.GetPosition((Floor)Parent).X - prevX), Margin.Top + (e.GetPosition((Floor)Parent).Y - prevY), Margin.Right + (e.GetPosition((Floor)Parent).X - prevX), Margin.Bottom + (e.GetPosition((Floor)Parent).Y - prevY)); InvalidateVisual(); } prevX = e.GetPosition((Floor)Parent).X; prevY = e.GetPosition((Floor)Parent).Y; cX = Margin.Left + r.Width / 2; cY = Margin.Top + r.Height / 2; } } internal virtual void SnapToGrid() { double xPos = Margin.Left; double yPos = Margin.Top; double xMarg = xPos % ((Floor)Parent).cellDim; double yMarg = yPos % ((Floor)Parent).cellDim; if (xMarg < ((Floor)Parent).cellDim / 2) { if (yMarg < ((Floor)Parent).cellDim / 2) { Margin = new Thickness(xPos - xMarg, yPos - yMarg, xPos - xMarg + r.Width, yPos - yMarg + r.Height); } else { Margin = new Thickness(xPos - xMarg, yPos - yMarg + ((Floor)Parent).cellDim, xPos - xMarg + r.Width, yPos - yMarg + ((Floor)Parent).cellDim + r.Height); } } else { if (yMarg < ((Floor)Parent).cellDim / 2) { Margin = new Thickness(xPos - xMarg + ((Floor)Parent).cellDim, yPos - yMarg, xPos - xMarg + ((Floor)Parent).cellDim + r.Width, yPos - yMarg + r.Height); } else { Margin = new Thickness(xPos - xMarg + ((Floor)Parent).cellDim, yPos - yMarg + ((Floor)Parent).cellDim, xPos - xMarg + ((Floor)Parent).cellDim + r.Width, yPos - yMarg + ((Floor)Parent).cellDim + r.Height); } } } Essentially I am looking for a simple way to modify the existing code to allow the movement of a UI element that has another one sitting on top of it. Thanks!

    Read the article

  • The best JSF coding pattern for editing JPA entities using @RequestScoped only

    - by AlanObject
    I am in a project where I will write a lot of pages like this, so I want to use the most efficient (to write) coding pattern. Background: In the past I have used CODI's @ViewAccessScoped to preserve state between requests, and more recently I have started using flash scoped objects to save state. I can't use JSF @ViewScoped because I use CDI and they don't play well together. So I want to see if I can do this with only @RequestScoped backing beans. The page is designed like this (the p namespace is Primefaces): <f:metadata> <f:viewParam name="ID" value="#{backing.id}" /> </f:metadata> .... <h1>Edit Object Page</h1> <h:form id="formObj" rendered="#{backing.accessOK}"> <p:panelGrid columns="2"> <h:outputLabel value="Field #1:"/> <p:inputText value="#{backing.record.field1}" /> (more input fields) <h:outputLabel value="Action:" /> <h:panelGroup> <p:commandButton value="Save" action="#{backing.save}" /> <p:commandButton value="Cancel" action="backing.cancel" /> </h:panelGroup> </p:panelGrid> <p:messages showDetail="true" showSummary="true" /> </h:form> If the page is requested, the method accessOK() has the ability to keep the h:form from being rendered. Instead, the p:messages is shown with whatever FacesMessage(s) the accessOK() method cares to set. The pattern for the bean backing looks like this: @Named @RequestScoped public class Backing { private long id; private SomeJPAEntity record; private Boolean accessOK; public long getId() { return id; } public void setId(long value) { id = value; } public boolean accessOK() { if (accessOK != null) return accessOK; if (getRecord() == null) { // add a FacesMessage that explains the record // does not exist return accessOK = false; // note single = } // do any other access checks, such as write permissions return accessOK = true; } public SomeJPAEntity getRecord() { if (record != null) return record; if (getId() > 0) record = // get the record from DB else record = new SomeJPAEntity(); return record; } public String execute() { if (!accessOK()) return null; // bad edit // do other integrity checks here. If fail, set FacesMessages // and return null; if (getId() > 0) // merge the record back into the data base else // persist the record } } Here is what goes wrong with this model. When the Save button is clicked, a new instance of Backing is built, and then there are a lot of calls to the getRecord() getter before the setID() setter is called. So the logic in getRecord() breaks because it cannot rely on the id property being valid when it is called. When this was a @ViewAccessScoped (or ViewScoped) backing bean, then both the id and record properties are already set when the form is processed with the commandButton. Alternatively you can save those properties in flash storage but that has its own problems I want to avoid. So is there a way to make this programming model work within the specification?

    Read the article

  • Fastest way to read data from a lot of ASCII files

    - by Alsenes
    Hi guys, for a college exercise that I've already submitted I needed to read a .txt file wich contained a lot of names of images(1 in each line). Then I needed to open each image as an ascii file, and read their data(images where in ppm format), and do a series of things with them. The things is, I noticed my program was taking 70% of the time in the reading the data from the file part, instead of in the other calculations that I was doing (finding number of repetitions of each pixel with a hash table, finding diferents pixels beetween 2 images etc..), which I found quite odd to say the least. This is how the ppm format looks like: P3 //This value can be ignored when reading the file, because all image will be correctly formatted 4 4 255 //This value can be also ignored, will be always 255. 0 0 0 0 0 0 0 0 0 15 0 15 0 0 0 0 15 7 0 0 0 0 0 0 0 0 0 0 0 0 0 15 7 0 0 0 15 0 15 0 0 0 0 0 0 0 0 0 This is how I was reading the data from the files: ifstream fdatos; fdatos.open(argv[1]); //Open file with the name of all the images const int size = 128; char file[size]; //Where I'll get the image name Image *img; while (fdatos >> file) { //While there's still images anmes left, continue ifstream fimagen; fimagen.open(file); //Open image file img = new Image(fimagen); //Create new image object with it's data file ……… //Rest of the calculations whith that image ……… delete img; //Delete image object after done fimagen.close(); //Close image file after done } fdatos.close(); And inside the image object read the data like this: const int tallafirma = 100; char firma[tallafirma]; fich_in >> std::setw(100) >> firma; // Read the P3 part, can be ignored int maxvalue, numpixels; fich_in >> height >> width >> maxvalue; // Read the next three values numpixels = height*width; datos = new Pixel[numpixels]; int r,g,b; //Don't need to be ints, max value is 256, so an unsigned char would be ok. for (int i=0; i<numpixels; i++) { fich_in >> r >> g >> b; datos[i] = Pixel( r, g ,b); } //This last part is the slow one, //I thing I should be able to read all this data in one single read //to buffer or something which would be stored in an array of unsigned chars, //and then I'd only need to to do: //buffer[0] -> //Pixel 1 - Red data //buffer[1] -> //Pixel 1 - Green data //buffer[2] -> //Pixel 1 - Blue data So, any Ideas? I think I can improve it quite a bit reading all to an array in one single call, I just don't know how that is done. Also, is it posible to know how many images will be in the "index file"? Is it posiible to know the number of lines a file has?(because there's one file name per line..) Thanks!!

    Read the article

  • ASP.NET Login Page Redirection Problem

    - by Daniel
    Hello everyone! I'm building a silverlight application hosted on ASP.NET Web App. / IIS7 / SSL-enabled website. For security, I put my silverlight page inside a Members folder in the ASP.NET Web Application, and restricted access from anonymous users.(see web.config below) when users try to access pages under Members folder, they get redirected to https://www.ssldemo.com/authenticationtest/login.aspx. (see web.config below) (I've mapped www.ssldemo.com to 127.0.0.1). for security, I'm switching to HTTPS in login.aspx, and back to HTTP after validation. below is the code for login.aspx.cs. protected void Page_Load(object sender, EventArgs e) { LoginControl.LoggedIn += new EventHandler(LoginControl_LoggedIn); } void LoginControl_LoggedIn(object sender, EventArgs e) { //for going to ReturnURL & switching back to HTTP string serverName = HttpUtility.UrlEncode(Request.ServerVariables["SERVER_NAME"]); string returnURL = Request["ReturnURL"]; Response.Redirect(ResolveClientUrl("http://" + serverName + returnURL)); } The problem is, when I deploy another application to http://www.ssldemo.com/authenticationtest/members/AnotherApplication/ and open http://www.ssldemo.com/authenticationtest/members/AnotherApplication/default.aspx, Users get redirected to https://www.ssldemo.com/authenticationtest/login.aspx?ReturnUrl=%2fauthenticationtest%2fmembers%2fanotherapplication%2fdefault.aspx. but even when I enter the correct credentials at login page, I get redirected to the same login page again, not to the ReturnUrl. when I looked into fiddler, it said '302 object moved to here.' Thank you for reading! Any input will be much appreciated. <configuration> <connectionStrings> <add name="CompanyDatabase" connectionString="Data Source=192.168.0.2;Initial Catalog=SomeTable;User ID=Username;Password=P@ssword" /> </connectionStrings> <system.web> <compilation debug="true" targetFramework="4.0" /> <authentication mode="Forms"> <forms slidingExpiration="true" timeout="15" loginUrl="https://www.ssldemo.com/authenticationtest/login.aspx" defaultUrl="~/Members/Default.aspx" > </forms> </authentication> <!--Custom Membership Provider--> <membership defaultProvider="MyMembershipProvider" userIsOnlineTimeWindow="15"> <providers> <clear /> <add name="MyMembershipProvider" type="AuthenticationTest.Web.MyMembershipProvider" connectionStringName="CompanyDatabase" applicationName="AuthenticationTest.Web"/> </providers> </membership> </system.web> <!--securing folders--> <location path="Members"> <system.web> <authorization> <deny users="?"/> </authorization> </system.web> </location> </configuration>

    Read the article

  • Self-updating collection concurrency issues

    - by DEHAAS
    I am trying to build a self-updating collection. Each item in the collection has a position (x,y). When the position is changed, an event is fired, and the collection will relocate the item. Internally the collection is using a “jagged dictionary”. The outer dictionary uses the x-coordinate a key, while the nested dictionary uses the y-coordinate a key. The nested dictionary then has a list of items as value. The collection also maintains a dictionary to store the items position as stored in the nested dictionaries – item to stored location lookup. I am having some trouble making the collection thread safe, which I really need. Source code for the collection: public class PositionCollection<TItem, TCoordinate> : ICollection<TItem> where TItem : IPositionable<TCoordinate> where TCoordinate : struct, IConvertible { private readonly object itemsLock = new object(); private readonly Dictionary<TCoordinate, Dictionary<TCoordinate, List<TItem>>> items; private readonly Dictionary<TItem, Vector<TCoordinate>> storedPositionLookup; public PositionCollection() { this.items = new Dictionary<TCoordinate, Dictionary<TCoordinate, List<TItem>>>(); this.storedPositionLookup = new Dictionary<TItem, Vector<TCoordinate>>(); } public void Add(TItem item) { if (item.Position == null) { throw new ArgumentException("Item must have a valid position."); } lock (this.itemsLock) { if (!this.items.ContainsKey(item.Position.X)) { this.items.Add(item.Position.X, new Dictionary<TCoordinate, List<TItem>>()); } Dictionary<TCoordinate, List<TItem>> xRow = this.items[item.Position.X]; if (!xRow.ContainsKey(item.Position.Y)) { xRow.Add(item.Position.Y, new List<TItem>()); } xRow[item.Position.Y].Add(item); if (this.storedPositionLookup.ContainsKey(item)) { this.storedPositionLookup[item] = new Vector<TCoordinate>(item.Position); } else { this.storedPositionLookup.Add(item, new Vector<TCoordinate>(item.Position)); // Store a copy of the original position } item.Position.PropertyChanged += (object sender, PropertyChangedEventArgs eventArgs) => this.UpdatePosition(item, eventArgs.PropertyName); } } private void UpdatePosition(TItem item, string propertyName) { lock (this.itemsLock) { Vector<TCoordinate> storedPosition = this.storedPositionLookup[item]; this.RemoveAt(storedPosition, item); this.storedPositionLookup.Remove(item); } } } I have written a simple unit test to check for concurrency issues: [TestMethod] public void TestThreadedPositionChange() { PositionCollection<Crate, int> collection = new PositionCollection<Crate, int>(); Crate crate = new Crate(new Vector<int>(5, 5)); collection.Add(crate); Parallel.For(0, 100, new Action<int>((i) => crate.Position.X += 1)); Crate same = collection[105, 5].First(); Assert.AreEqual(crate, same); } The actual stored position varies every time I run the test. I appreciate any feedback you may have.

    Read the article

  • Step by Step / Deep explain: The Power of (Co)Yoneda (preferably in scala) through Coroutines

    - by Mzk
    some background code /** FunctorStr: ? F[-]. (? A B. (A -> B) -> F[A] -> F[B]) */ trait FunctorStr[F[_]] { self => def map[A, B](f: A => B): F[A] => F[B] } trait Yoneda[F[_], A] { yo => def apply[B](f: A => B): F[B] def run: F[A] = yo(x => x) def map[B](f: A => B): Yoneda[F, B] = new Yoneda[F, B] { def apply[X](g: B => X) = yo(f andThen g) } } object Yoneda { implicit def yonedafunctor[F[_]]: FunctorStr[({ type l[x] = Yoneda[F, x] })#l] = new FunctorStr[({ type l[x] = Yoneda[F, x] })#l] { def map[A, B](f: A => B): Yoneda[F, A] => Yoneda[F, B] = _ map f } def apply[F[_]: FunctorStr, X](x: F[X]): Yoneda[F, X] = new Yoneda[F, X] { def apply[Y](f: X => Y) = Functor[F].map(f) apply x } } trait Coyoneda[F[_], A] { co => type I def fi: F[I] def k: I => A final def map[B](f: A => B): Coyoneda.Aux[F, B, I] = Coyoneda(fi)(f compose k) } object Coyoneda { type Aux[F[_], A, B] = Coyoneda[F, A] { type I = B } def apply[F[_], B, A](x: F[B])(f: B => A): Aux[F, A, B] = new Coyoneda[F, A] { type I = B val fi = x val k = f } implicit def coyonedaFunctor[F[_]]: FunctorStr[({ type l[x] = Coyoneda[F, x] })#l] = new CoyonedaFunctor[F] {} trait CoyonedaFunctor[F[_]] extends FunctorStr[({type l[x] = Coyoneda[F, x]})#l] { override def map[A, B](f: A => B): Coyoneda[F, A] => Coyoneda[F, B] = x => apply(x.fi)(f compose x.k) } def liftCoyoneda[T[_], A](x: T[A]): Coyoneda[T, A] = apply(x)(a => a) } Now I thought I understood yoneda and coyoneda a bit just from the types – i.e. that they quantify / abstract over map fixed in some type constructor F and some type a, to any type B returning F[B] or (Co)Yoneda[F, B]. Thus providing map fusion for free (? is this kind of like a cut rule for map ?). But I see that Coyoneda is a functor for any type constructor F regardless of F being a Functor, and that I don't fully grasp. Now I'm in a situation where I'm trying to define a Coroutine type, (I'm looking at https://www.fpcomplete.com/school/to-infinity-and-beyond/pick-of-the-week/coroutines-for-streaming/part-2-coroutines for the types to get started with) case class Coroutine[S[_], M[_], R](resume: M[CoroutineState[S, M, R]]) sealed trait CoroutineState[S[_], M[_], R] object CoroutineState { case class Run[S[_], M[_], R](x: S[Coroutine[S, M, R]]) extends CoroutineState[S, M, R] case class Done[R](x: R) extends CoroutineState[Nothing, Nothing, R] class CoroutineStateFunctor[S[_], M[_]](F: FunctorStr[S]) extends FunctorStr[({ type l[x] = CoroutineState[S, M, x]})#l] { override def map[A, B](f : A => B) : CoroutineState[S, M, A] => CoroutineState[S, M, B] = { ??? } } } and I think that if I understood Coyoneda better I could leverage it to make S & M type constructors functors way easy, plus I see Coyoneda potentially playing a role in defining recursion schemes as the functor requirement is pervasive. So how could I use coyoneda to make type constructors functors like for example coroutine state? or something like a Pause functor ?

    Read the article

< Previous Page | 923 924 925 926 927 928 929 930 931 932 933 934  | Next Page >