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  • Entity Framework 4 & WCF Data Service: N:M mapping

    - by JJO
    I have three tables in my database: An A table, a B table, and a many-to-many ABMapping table. For simplicity, A and B are keyed with identity columns; ABMapping has just two columns: AId and BId. I built an Entity Framework 4 model from this, and it did correctly identify the N:M mapping between A and B. I then built a WCF Data Service based on this EF model. I'm trying to consume this WCF Data Service. Unfortunately, I can't figure out how to get a mapping between As and Bs to map back to the database. I've tried something like this: A a = new A(); B b = new B(); a.Bs.Add(b); connection.SaveChanges(); But this doesn't seem to have worked. Any clues? What am I missing?

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  • Twin edges - Half edge data structure

    - by Pradeep Kumar
    I have implemented a Half-edge data structure for loading 3d objects. I find that the part of assigning twin/pair edges takes the longest computation time (especially for objects which have hundreds of thousands half edges). The reason is that I use nested loops to accomplish this. Is there a simpler and efficient way of doing this? Below is the code which I've written. HE is the half-edge data structure. hearr is a vector containing all the half edges. vert is the starting vertex and end is the ending vertex. Thanks!! HE *e1,*e2; for(size_t i=0;i<hearr.size();i++){ e1=hearr[i]; for(size_t j=1;j<hearr.size();j++){ e2=hearr[j]; if((e1->vert==e2->end)&&(e2->vert==e1->end)){ e1->twin=e2; e2->twin=e1; } } }

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  • Where does one get data like Country:(list) State:(list)

    - by rlb.usa
    As a programmer of data-entry forms of all kinds, I often find myself making fields for things like Country: <choose from list>, State: <choose from list>, Race/Ethnicity: <choose from list>. Consider: Perhaps a list the 50 United States names is an easy thing to find (does one include DC?) , but the countries are not. Nearly every site you find has a differing list with all of the political goings on over the years, and they become outdated quickly. What's the best/common practice regarding population of these kinds of lists? Where does this data come from if it's not given in the specs?

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  • How to copy a structure with pointers to data inside (so to copy pointers and data they point to)?

    - by Kabumbus
    so I have a structure like struct GetResultStructure { int length; char* ptr; }; I need a way to make a full copy of it meaning I need a copy to have a structure with new ptr poinnting on to copy of data I had in original structure. Is It any how possible? I mean any structure I have which contains ptrs will have some fields with its lengths I need a function that would copy my structure coping all ptrs and data they point to by given array of lengthes... Any cool boost function for it? Or any way how to create such function?

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  • The data structure of libev watchers

    - by changchang
    Libev uses three data structures to storage different watchers. Heap: for watchers that sorted by time, such as ev_timer and ev_periodic. Linked list: such as ev_io, ev_signal, ev_child and etc. Array: such as ev_prepare, ev_check, ev_async and etc. There is no doubt about that uses heap to store timer watcher. But what is the criteria of selecting linked list and array? The data structure that stores ev_io watchers seems a little complex. It first is an array that with fd as its index and the element in the array is a linked list of ev_io watcher. It is more convenient to allocate space for array if use linked list as element. Is it the reason? Or just because of the insert or remove operation of ev_io is more frequently and the ev_prepare seems more stable? Or any other reasons?

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  • Manipulate data for scaling

    - by user1487000
    I have this data: Game 1: 7.0/10.0, Reviewed: 1000 times Game 2: 7.5/10.0, Reviewed: 3000 times Game 3: 8.9/10.0, Reviewed: 140,000 times Game 4: 10.0/10.0 Reviewed: 5 times . . . I want to manipulate this data in a way to make each rating reflective of how many times it has been reviewed. For example Game 3 should have a little heavier weight than than Game 4, since it has been reviewed way more. And Game 2's 7 should be weighted more than Game 1's 7. Is there a proper function to do this scaling? In such a way that ScaledGameRating = OldGameRating * (some exponential function?)

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  • "The Controls collection cannot be modified because the control contains code blocks"

    - by Daniel P
    I am trying to create a simple user control that is a slider. When I add a AjaxToolkit SliderExtender to the user control I get this (*&$#()@# error: Server Error in '/' Application. The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %). Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %). Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %).] System.Web.UI.ControlCollection.Add(Control child) +8677431 AjaxControlToolkit.ScriptObjectBuilder.RegisterCssReferences(Control control) in d:\E\AjaxTk-AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ScriptObjectBuilder.cs:293 AjaxControlToolkit.ExtenderControlBase.OnLoad(EventArgs e) in d:\E\AjaxTk-AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ExtenderControlBase.cs:306 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627 Version Information: Microsoft .NET Framework Version:2.0.50727.3074; ASP.NET Version:2.0.50727.3074 I have tried putting a placeholder in the user control and adding the textbox and slider extender to the placeholder programmatically and I still get the error. Here is the simple code: <table cellpadding="0" cellspacing="0" style="width:100%"> <tbody> <tr> <td></td> <td> <asp:Label ID="lblMaxValue" runat="server" Text="Maximum" CssClass="float_right" /> <asp:Label ID="lblMinValue" runat="server" Text="Minimum" /> </td> </tr> <tr> <td style="width:60%;"> <asp:CheckBox ID="chkOn" runat="server" /><asp:Label ID="lblPrefix" runat="server" />:&nbsp;<asp:Label ID="lblSliderValue" runat="server" />&nbsp;<asp:Label ID="lblSuffix" runat="server" /> </td> <td style="text-align:right;width:40%;"> <asp:TextBox ID="txtSlider" runat="server" Text="50" style="display:none;" /> <ajaxToolkit:SliderExtender ID="seSlider" runat="server" BehaviorID="seSlider" TargetControlID="txtSlider" BoundControlID="lblSliderValue" Orientation="Horizontal" EnableHandleAnimation="true" Length="200" Minimum="0" Maximum="100" Steps="1" /> </td> </tr> </tbody> What is the problem? Thanks in advance. Dan

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  • Oracle Database 11g Helps Control Exponential Data Growth

    - by [email protected]
    The 2010 ESG annual customer survey is now available. As part of it, ESG interviewed 300 customers about their IT priorities and, unsurprisingly, "Manage Data Growth" is top of the list. Perhaps less self-evident is the proposed solution to target this prime concern: "Often overlooked because it is a database platform, Oracle Database 11g offers additional capabilities such as automatic storage management (ASM), advanced data compression, and data protection that make managing data growth much easier for organizations of any size." The paper goes on to discuss these capabilities and highlights their potential benefits. Oracle Database 11g Helps Control Exponential Database Growth - a worthwhile read for anyone having to deal with rapidly increasing amounts of data. Download your free copy here.

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  • The Image ASP.Net web server control

    - by nikolaosk
    In this post I will try to show you how to use the ImageMap web server control. This is going to be a very easy example. We will write no code but I will use the control to create navigation hotspots. 1) Launch Visual Studio 2010/2005/2008. Express editions will be fine. 2) Create a new asp.net empty web site and call it “ NavigationHotspot ”. 3) Drag and drop in the default.aspx page a ImageMap web server control from the Toolbox. 4) Let me explain what I did. I have an image that contains two flags...(read more)

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  • Oracle Developer Day: Provisioning und Patching mit Cloud Control

    - by Ralf Durben (DBA Community)
    Mit Oracle Enterprise Manager 12c Cloud Control und dem Lifecycle Management Pack können Sie Ihren Aufwand in den Bereichen Erstellung und Wartung von Oracle Datenbanken erheblich senken und so Ihre wertvolle Zeit wieder anderen Aufgaben widmen. Dieser Oracle Developer Day zeigt in einer halbtägigen Veranstaltung, wie Sie die Provisionierungs- und Patchinglösungen in Cloud Control für sich nutzen und so viel Zeit einsparen können. Dabei wird die Nutzung anhand von praktischen Beispielen erläutert. Themen dieser Veranstaltung sind: Grundlagen des Provisionings in Cloud Control Datenbank Provisioning Patching und Migration von Datenbanken Sicherheitsmodell rund um Deployment Prozeduren Provisionierung sonstiger Software Weitere Nutzungsmöglichkeiten von Deployment Prozeduren Veranstaltungszeit: 12:00 Uhr Networking Lunch13:00 Uhr Beginn der Präsentationen17:00 Uhr Ende der Veranstaltung Veranstaltungen: 08.10.2012  München10.10.2012  Frankfurt25.10.2012  Hamburg Die Teilnahme zu dieser Veranstaltung ist kostenlos. Anmelden können Sie sich mit einem Klick auf den Veranstaltungsort.

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  • Oracle Developer Day: Provisioning und Patching mit Cloud Control

    - by A&C Redaktion
    Mit Oracle Enterprise Manager 12c Cloud Control und dem Lifecycle Management Pack können Sie Ihren Aufwand in den Bereichen Erstellung und Wartung von Oracle Datenbanken erheblich senken und so Ihre wertvolle Zeit wieder anderen Aufgaben widmen. Dieser Oracle Developer Day zeigt in einer halbtägigen Veranstaltung, wie Sie die Provisionierungs- und Patchinglösungen in Cloud Control für sich nutzen und so viel Zeit einsparen können. Dabei wird die Nutzung anhand von praktischen Beispielen erläutert. Themen dieser Veranstaltung sind: Grundlagen des Provisionings in Cloud Control Datenbank Provisioning Patching und Migration von Datenbanken Sicherheitsmodell rund um Deployment Prozeduren Provisionierung sonstiger Software Weitere Nutzungsmöglichkeiten von Deployment Prozeduren Veranstaltungszeit: 12:00 Uhr Networking Lunch13:00 Uhr Beginn der Präsentationen17:00 Uhr Ende der Veranstaltung Veranstaltungen: 08.10.2012  München10.10.2012  Frankfurt25.10.2012  Hamburg Die Teilnahme zu dieser Veranstaltung ist kostenlos und Oracle Partner sind herzlich eingeladen. Anmelden können Sie sich mit einem Klick auf den Veranstaltungsort.

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  • Version control and personal configuration file

    - by Erel Segal Halevi
    Our project uses a user-specific configuration file. This file is currently not in version control, since it is different for each user. The problem is, whenever a developer adds a new module that requires configuration, or changes the name of an existing modules, the other developers get errors because their private configuration files are not updated. To solve the problem, we thought of working with two configuration files: a default/global configuration file that will be in version control and will be updated regularly by each developer that adds a new module, and a private configuration file that will be kept out of version control and will contain only the user-specific changes. However, this still seems like an ad-hoc solution. Can you propose a better solution? What do the professionals do?

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  • Create named criteria in EJB Data control

    - by shantala.sankeshwar
    This article gives the detailed steps on creating named criteria in EJB Data control.Note that this feature is available in Jdev version 11.1.2.0.0Use Case DescriptionSuppose we have defined an EJB Entity Object & we would like to filter the Entity object based on some criteria,then this filtering can be achieved by creating named criteria in EJB Data Control.Implementation stepsLet us suppose that we have created Java EE Web Application with Entities from Emp table Create session bean,generate data control for the same Edit empFindAll in DataControls.dcx fileCreate simple Named Criteria: deptno>=20Create on '+' icon to create Named Criteria:Refresh the Data Controls & create a new jspx page.Drop EmpCriteria as ADF Query Panel with TableRun the page,click on search button & we will see that Emp table shows filtered records

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  • ThinkPad fan control via procfs

    - by asebian
    My ThinkPad W500 used to crash sometimes under heavy load because the automatic control is not speeding up the fan far enough. But I was able to disengage the fan and let it run at full speed in Ubuntu 10.10. But this does not work in my new nice and shiny Ubuntu 11.10. Have a glimpse at fan control device. % ls -l /proc/acpi/ibm/fan -rw-r--r-- 1 root root 0 2012-03-18 15:46 /proc/acpi/ibm/fan % cat /proc/acpi/ibm/fan status: enabled speed: 3056 level: auto Now become super user in a fresh and clean environment and send control sequence. % exec sudo env -i bash -l $ echo 'level disengaged' >/proc/acpi/ibm/fan bash: echo: write error: Invalid argument What did I miss? Thanks for suggests.

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  • Retrieve .Net Control ID in Javascript

    - by Vipin
    Originally posted on: http://geekswithblogs.net/Vipin/archive/2013/07/24/retrieve-.net-control-id-in-javascript.aspxIf you need to retrieve a client ID of an asp:net control in a javascript function, then you can use the below function - function $$(id, context) { var el = $("#" + id, context); if (el.length < 1) el = $("[id$=_" + id + "]", context); return el; }   var tempDotNetControl = 'aspTextTemporary';   var ClientSideID = $$(aspTextTemporary); Please bear in mind, this function is useful if you want to retrieve client ID of a different DotNet control based on some condition, otherwise if it’s always static then you can just use <%= aspTextTemporary.ClientID %>"

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  • Error installing Package Control for Sublime Text 3 on Ubuntu 14.04

    - by user1837378
    This is the error. It comes up when I paste and enter the installation code (which I get from the Package Control website) and each time I open up Sublime Text. Package Control Your system's locale is set to a value that can not handle non-ASCII characters. Package Control can not properly work unless this is fixed. On Linux, please reference your distribution's docs for information on properly setting the LANG environmental variable. As a temporary work-around, you can launch Sublime Text from the terminal with: LANG=en_US.UTF-8 sublime_text I had the same problem with Ubuntu 13.04 so it's probably not version-dependent.

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  • UbuntuGNOME 13.10 - Problem: Keyboard layout: Control L and Caps Lock swapped

    - by linuxubuntu
    I have a problem in UbuntuGNOME 13.10 which I didn't had in prior releases: I did a clean install and I don't know if it was already there or if I may have changed something, but my "Control L" and "Caps Lock" keys are swapped. How to swap them back? See also the attached image. http://i.imgur.com/PR1YB4T.jpg I swapped them back using but this is obviously not a proper fix $ cd ~ $ xmodmap -pke > .Xmodmap $ echo "remove Lock = Caps_Lock remove Control = Control_L keysym Control_L = Caps_Lock keysym Caps_Lock = Control_L add Lock = Caps_Lock add Control = Control_L" >> .Xmodmap $ xmodmap .Xmodmap but the "Keyboard Layout Chart" program shows the keys still swapped. What's the reason for this? How to fix?

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  • Database Development and Source Control

    - by Enrique Lima
    I have been working with Database Development and the aspects that come with it, the pain and the joy of moving from Dev to QA and then on to Production.  Source Control has a place in Dev, and that is where the baselines should be established. Where am I going with this? I have been working with Redgate’s Source Control 3.0, and I am seeing some features that are great for the process of moving from Dev to … well something that allows for quite a level of control.  We are not only talking about scripting the structure of a database, but creating a baseline, working with migration scripts, and integrated with Redgate’s Schema Compare.  There is a detailed paper that will be posted here in the next day or so to provide step by step information of the process to define your baseline in Dev and then take it to the desired destination. In the meantime, check the Webinars Redgate has regarding this process and products.

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  • Records not being saved to core data sqlite file

    - by esd100
    I'm a complete newbie when it comes to iOS programming and much less Core Data. It's rather non-intuitive for me, as I really came into my own with programming with MATLAB, which I guess is more of a 'scripting' language. At any rate, my problem is that I had no idea what I had to do to create a database for my application. So I read a little bit and thought I had to create a SQL database of my stuff and then import it. Long story short, I created a SQLite db and I want to use the work I have already done to import stuff into my CoreData database. I tried exporting to comma-delimited files and xml files and reading those in, but I didn't like it and it seemed like an extra step that I shouldn't need to do. So, I imported the SQLite database into my resources and added the sqlite framework. I have my core data model setup and it is setting up the SQLite database for the model correctly in the background. When I run through my program to add objects to my entities, it seems to work and I can even fetch results afterward. However, when I inspect the Core Data Database SQLite file, no records have been saved. How is it possible for it to fetch results but not save them to the database? - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{ //load in the path for resources NSString *paths = [[NSBundle mainBundle] resourcePath]; NSString *databaseName = @"histology.sqlite"; NSString *databasePath = [paths stringByAppendingPathComponent:databaseName]; [self createDatabase:databasePath ]; NSError *error; if ([[self managedObjectContext] save:&error]) { NSLog(@"Whoops, couldn't save: %@", [error localizedDescription]); } // Test listing all CELLS from the store NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entityMO = [NSEntityDescription entityForName:@"CELL" inManagedObjectContext:[self managedObjectContext]]; [fetchRequest setEntity:entityMO]; NSArray *fetchedObjects = [[self managedObjectContext] executeFetchRequest:fetchRequest error:&error]; for (CELL *cellName in fetchedObjects) { //NSLog(@"cellName: %@", cellName); } -(void) createDatabase:databasePath { NSLog(@"The createDatabase function was entered."); NSLog(@"The databasePath is %@ ",[databasePath description]); // Setup the database object sqlite3 *histoDatabase; // Open the database from filessytem if(sqlite3_open([databasePath UTF8String], &histoDatabase) == SQLITE_OK) { NSLog(@"The database was opened"); // Setup the SQL Statement and compile it for faster access const char *sqlStatement = "SELECT * FROM CELL"; sqlite3_stmt *compiledStatement; if(sqlite3_prepare_v2(histoDatabase, sqlStatement, -1, &compiledStatement, NULL) != SQLITE_OK) { NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(histoDatabase)); } if(sqlite3_prepare_v2(histoDatabase, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) { // Loop through the results and add them to cell MO array while(sqlite3_step(compiledStatement) == SQLITE_ROW) { CELL *cellMO = [NSEntityDescription insertNewObjectForEntityForName:@"CELL" inManagedObjectContext:[self managedObjectContext]]; if (sqlite3_column_type(compiledStatement, 0) != SQLITE_NULL) { cellMO.cellName = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 0)]; } else { cellMO.cellName = @"undefined"; } if (sqlite3_column_type(compiledStatement, 1) != SQLITE_NULL) { cellMO.cellDescription = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 1)]; } else { cellMO.cellDescription = @"undefined"; } NSLog(@"The contents of NSString *cellName = %@",[cellMO.cellName description]); } } // Release the compiled statement from memory sqlite3_finalize(compiledStatement); } sqlite3_close(histoDatabase); } I have a feeling that it has something to do with the timing of opening/closing both of the databases? Attached I have some SQL debugging output to the terminal 2012-05-28 16:03:39.556 MedPix[34751:fb03] The createDatabase function was entered. 2012-05-28 16:03:39.557 MedPix[34751:fb03] The databasePath is /Users/jack/Library/Application Support/iPhone Simulator/5.1/Applications/A6B2A79D-BA93-4E24-9291-5B7948A3CDF4/MedPix.app/histology.sqlite 2012-05-28 16:03:39.559 MedPix[34751:fb03] The database was opened 2012-05-28 16:03:39.560 MedPix[34751:fb03] The database was prepared 2012-05-28 16:03:39.575 MedPix[34751:fb03] CoreData: annotation: Connecting to sqlite database file at "/Users/jack/Library/Application Support/iPhone Simulator/5.1/Applications/A6B2A79D-BA93-4E24-9291-5B7948A3CDF4/Documents/MedPix.sqlite" 2012-05-28 16:03:39.576 MedPix[34751:fb03] CoreData: annotation: creating schema. 2012-05-28 16:03:39.577 MedPix[34751:fb03] CoreData: sql: pragma page_size=4096 2012-05-28 16:03:39.578 MedPix[34751:fb03] CoreData: sql: pragma auto_vacuum=2 2012-05-28 16:03:39.630 MedPix[34751:fb03] CoreData: sql: BEGIN EXCLUSIVE 2012-05-28 16:03:39.631 MedPix[34751:fb03] CoreData: sql: SELECT TBL_NAME FROM SQLITE_MASTER WHERE TBL_NAME = 'Z_METADATA' 2012-05-28 16:03:39.632 MedPix[34751:fb03] CoreData: sql: CREATE TABLE ZCELL ( Z_PK INTEGER PRIMARY KEY, Z_ENT INTEGER, Z_OPT INTEGER, ZCELLDESCRIPTION VARCHAR, ZCELLNAME VARCHAR ) ... 2012-05-28 16:03:39.669 MedPix[34751:fb03] CoreData: annotation: Creating primary key table. 2012-05-28 16:03:39.671 MedPix[34751:fb03] CoreData: sql: CREATE TABLE Z_PRIMARYKEY (Z_ENT INTEGER PRIMARY KEY, Z_NAME VARCHAR, Z_SUPER INTEGER, Z_MAX INTEGER) 2012-05-28 16:03:39.672 MedPix[34751:fb03] CoreData: sql: INSERT INTO Z_PRIMARYKEY(Z_ENT, Z_NAME, Z_SUPER, Z_MAX) VALUES(1, 'CELL', 0, 0) ... 2012-05-28 16:03:39.701 MedPix[34751:fb03] CoreData: sql: CREATE TABLE Z_METADATA (Z_VERSION INTEGER PRIMARY KEY, Z_UUID VARCHAR(255), Z_PLIST BLOB) 2012-05-28 16:03:39.702 MedPix[34751:fb03] CoreData: sql: SELECT TBL_NAME FROM SQLITE_MASTER WHERE TBL_NAME = 'Z_METADATA' 2012-05-28 16:03:39.703 MedPix[34751:fb03] CoreData: sql: DELETE FROM Z_METADATA WHERE Z_VERSION = ? 2012-05-28 16:03:39.704 MedPix[34751:fb03] CoreData: sql: INSERT INTO Z_METADATA (Z_VERSION, Z_UUID, Z_PLIST) VALUES (?, ?, ?) 2012-05-28 16:03:39.705 MedPix[34751:fb03] CoreData: sql: COMMIT 2012-05-28 16:03:39.710 MedPix[34751:fb03] CoreData: sql: pragma cache_size=200 2012-05-28 16:03:39.711 MedPix[34751:fb03] CoreData: sql: SELECT Z_VERSION, Z_UUID, Z_PLIST FROM Z_METADATA 2012-05-28 16:03:39.712 MedPix[34751:fb03] The contents of NSString *cellName = Beta Cell 2012-05-28 16:03:39.712 MedPix[34751:fb03] The contents of NSString *cellName = Gastric Chief Cell ... 2012-05-28 16:03:39.714 MedPix[34751:fb03] The database was prepared 2012-05-28 16:03:39.764 MedPix[34751:fb03] The createDatabase function has finished. Now fetching. 2012-05-28 16:03:39.765 MedPix[34751:fb03] CoreData: sql: SELECT 0, t0.Z_PK, t0.Z_OPT, t0.ZCELLDESCRIPTION, t0.ZCELLNAME FROM ZCELL t0 2012-05-28 16:03:39.766 MedPix[34751:fb03] CoreData: annotation: sql connection fetch time: 0.0008s 2012-05-28 16:03:39.767 MedPix[34751:fb03] CoreData: annotation: total fetch execution time: 0.0016s for 0 rows. 2012-05-28 16:03:39.768 MedPix[34751:fb03] cellName: <CELL: 0x6bbc120> (entity: CELL; id: 0x6bbc160 <x-coredata:///CELL/t57D10DDD-74E2-474F-97EE-E3BD0FF684DA34> ; data: { cellDescription = "S cells are cells which release secretin, found in the jejunum and duodenum. They are stimulated by a drop in pH to 4 or below in the small intestine's lumen. The released secretin will increase the s"; cellName = "S Cell"; organs = ( ); specimens = ( ); systems = ( ); tissues = ( ); }) ... Sections were cut short to abbreviate. But note that the fetch results contain information, but it says that total fetch execution was for "0" rows? How can that be? Any help will be greatly appreciated, especially detailed explanations. :) Thanks.

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  • data validation on wpf passwordbox:type password, re-type password

    - by black sensei
    Hello Experts !! I've built a wpf windows application in with there is a registration form. Using IDataErrorInfo i could successfully bind the field to a class property and with the help of styles display meaningful information about the error to users.About the submit button i use the MultiDataTrigger with conditions (Based on a post here on stackoverflow).All went well. Now i need to do the same for the passwordbox and apparently it's not as straight forward.I found on wpftutorial an article and gave it a try but for some reason it wasn't working. i've tried another one from functionalfun. And in this Functionalfun case the properties(databind,databound) are not recognized as dependencyproperty even after i've changed their name as suggested somewhere in the comments plus i don't have an idea whether it will work for a windows application, since it's designed for web. to give you an idea here is some code on textboxes <Window.Resources> <data:General x:Key="recharge" /> <Style x:Key="validButton" TargetType="{x:Type Button}" BasedOn="{StaticResource {x:Type Button}}" > <Setter Property="IsEnabled" Value="False"/> <Style.Triggers> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding ElementName=txtRecharge, Path=(Validation.HasError)}" Value="false" /> </MultiDataTrigger.Conditions> <Setter Property="IsEnabled" Value="True" /> </MultiDataTrigger> </Style.Triggers> </Style> <Style x:Key="txtboxerrors" TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}"> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/> <Setter Property="Validation.ErrorTemplate"> <Setter.Value> <ControlTemplate> <DockPanel LastChildFill="True"> <TextBlock DockPanel.Dock="Bottom" FontSize="8" FontWeight="ExtraBold" Foreground="red" Padding="5 0 0 0" Text="{Binding ElementName=showerror, Path=AdornedElement.(Validation.Errors)[0].ErrorContent}"></TextBlock> <Border BorderBrush="Red" BorderThickness="2"> <AdornedElementPlaceholder Name="showerror" /> </Border> </DockPanel> </ControlTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style> </Window.Resources> <TextBox Margin="12,69,12,70" Name="txtRecharge" Style="{StaticResource txtboxerrors}"> <TextBox.Text> <Binding Path="Field" Source="{StaticResource recharge}" ValidatesOnDataErrors="True" UpdateSourceTrigger="PropertyChanged"> <Binding.ValidationRules> <ExceptionValidationRule /> </Binding.ValidationRules> </Binding> </TextBox.Text> </TextBox> <Button Height="23" Margin="98,0,0,12" Name="btnRecharge" VerticalAlignment="Bottom" Click="btnRecharge_Click" HorizontalAlignment="Left" Width="75" Style="{StaticResource validButton}">Recharge</Button> some C# : class General : IDataErrorInfo { private string _field; public string this[string columnName] { get { string result = null; if(columnName == "Field") { if(Util.NullOrEmtpyCheck(this._field)) { result = "Field cannot be Empty"; } } return result; } } public string Error { get { return null; } } public string Field { get { return _field; } set { _field = value; } } } So what are suggestion you guys have for me? I mean how would you go about this? how do you do this since the databinding first purpose here is not to load data onto the fields they are just (for now) for data validation. thanks for reading this.

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  • How to populate a core data store programmatically?

    - by jdmuys
    I have ran out of hairs to pull with a crash in this routine that populates a core data store from a 9000+ line plist file. The crash happened at the very end of the routine inside the call to [managedObjectContext save:&error]. While if I save after every object insertion, the crash doesn't happen. Of course, saving after every object insertion totally kills the performance (from less than a second to many minutes). I modified my code so that it saves every K insertions, and the crash happens as soon as K = 2. The crash is an out-of-bound exception for an NSArray: Serious application error. Exception was caught during Core Data change processing: *** -[NSCFArray objectAtIndex:]: index (1) beyond bounds (1) with userInfo (null) Also maybe relevant, when the exception happen, my fetch result controller controllerDidChangeContent: delegate routine is in the call stack. It simply calls my table view endUpdate routine. I am now running out of ideas. How am I supposed to populate a core data store with a table view? Here is the call stack: #0 0x901ca4e6 in objc_exception_throw #1 0x01d86c3b in +[NSException raise:format:arguments:] #2 0x01d86b9a in +[NSException raise:format:] #3 0x00072cb9 in _NSArrayRaiseBoundException #4 0x00010217 in -[NSCFArray objectAtIndex:] #5 0x002eaaa7 in -[UITableView(_UITableViewPrivate) _endCellAnimationsWithContext:] #6 0x002def02 in -[UITableView endUpdates] #7 0x00004863 in -[AirportViewController controllerDidChangeContent:] at AirportViewController.m:463 #8 0x01c43be1 in -[NSFetchedResultsController(PrivateMethods) _managedObjectContextDidChange:] #9 0x0001462a in _nsnote_callback #10 0x01d31005 in _CFXNotificationPostNotification #11 0x00011ee0 in -[NSNotificationCenter postNotificationName:object:userInfo:] #12 0x01ba417d in -[NSManagedObjectContext(_NSInternalNotificationHandling) _postObjectsDidChangeNotificationWithUserInfo:] #13 0x01c03763 in -[NSManagedObjectContext(_NSInternalChangeProcessing) _createAndPostChangeNotification:withDeletions:withUpdates:withRefreshes:] #14 0x01b885ea in -[NSManagedObjectContext(_NSInternalChangeProcessing) _processRecentChanges:] #15 0x01bbe728 in -[NSManagedObjectContext save:] #16 0x000039ea in -[AirportViewController populateAirports] at AirportViewController.m:112 Here is the code to the routine. I apologize because a number of lines are probably irrelevant, but I'd rather err on that side. The crash happens the very first time it calls [managedObjectContext save:&error]: - (void) populateAirports { NSBundle *meBundle = [NSBundle mainBundle]; NSString *dbPath = [meBundle pathForResource:@"DuckAirportsBin" ofType:@"plist"]; NSArray *initialAirports = [[NSArray alloc] initWithContentsOfFile:dbPath]; //********************************************************************************* // get existing countries NSMutableDictionary *countries = [[NSMutableDictionary alloc] initWithCapacity:200]; NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Country" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; NSError *error = nil; NSArray *values = [managedObjectContext executeFetchRequest:fetchRequest error:&error]; if (!values) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } int numCountries = [values count]; NSLog(@"We have %d countries in store", numCountries); for (Country *aCountry in values) { [countries setObject:aCountry forKey:aCountry.code]; } [fetchRequest release]; //********************************************************************************* // read airports int numAirports = 0; int numUnsavedAirports = 0; #define MAX_UNSAVED_AIRPORTS_BEFORE_SAVE 2 numCountries = 0; for (NSDictionary *anAirport in initialAirports) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; NSString *countryCode = [anAirport objectForKey:@"country"]; Country *thatCountry = [countries objectForKey:countryCode]; if (!thatCountry) { thatCountry = [NSEntityDescription insertNewObjectForEntityForName:@"Country" inManagedObjectContext:managedObjectContext]; thatCountry.code = countryCode; thatCountry.name = [anAirport objectForKey:@"country_name"]; thatCountry.population = 0; [countries setObject:thatCountry forKey:countryCode]; numCountries++; NSLog(@"Found %dth country %@=%@", numCountries, countryCode, thatCountry.name); } // now that we have the country, we create the airport Airport *newAirport = [NSEntityDescription insertNewObjectForEntityForName:@"Airport" inManagedObjectContext:managedObjectContext]; newAirport.city = [anAirport objectForKey:@"city"]; newAirport.code = [anAirport objectForKey:@"code"]; newAirport.name = [anAirport objectForKey:@"name"]; newAirport.country_name = [anAirport objectForKey:@"country_name"]; newAirport.latitude = [NSNumber numberWithDouble:[[anAirport objectForKey:@"latitude"] doubleValue]]; newAirport.longitude = [NSNumber numberWithDouble:[[anAirport objectForKey:@"longitude"] doubleValue]]; newAirport.altitude = [NSNumber numberWithDouble:[[anAirport objectForKey:@"altitude"] doubleValue]]; newAirport.country = thatCountry; // [thatCountry addAirportsObject:newAirport]; numAirports++; numUnsavedAirports++; if (numUnsavedAirports >= MAX_UNSAVED_AIRPORTS_BEFORE_SAVE) { if (![managedObjectContext save:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } numUnsavedAirports = 0; } [pool release]; }

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  • SubSonic Stored Procedure Issue - Data Generated at Stored Procedure is different from Data Received

    - by ShaShaIn
    Hi All, I am facing a unknown problem while using stored procedure with SubSonic. I have written a stored procedure & application code that takes first name & last name as input parameter and return last login id as ouput parameter. It creates login id as first character of first name & complete last name for no-existing login id otherwise it adds 1 in the last login id e.g. First Name - Mark, Last Name - Waugh, First Login Id - MWaugh, Second Login Id - MWaugh1, Third Login Id - MWaugh2 etc. Stored Procedure SET ANSI_NULLS OFF GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [dbo].[Users_FetchLoginId] ( @FirstName nvarchar(64), @LastName nvarchar(64), @LoginId nvarchar(256) OUTPUT ) AS DECLARE @UserId nvarchar(256); SET @UserId = NULL; SET @LoginId = NULL; SELECT @UserId = LoweredUserName FROM aspnet_Users WHERE LoweredUserName LIKE (LOWER(SUBSTRING(@FirstName,1,1) + @LastName)) IF @@rowcount = 0 OR @UserId IS NULL BEGIN SET @LoginId = (SUBSTRING(@FirstName, 1, 1) + @LastName); print @LoginId RETURN 1; END ELSE BEGIN SELECT TOP 1 LoweredUserName FROM aspnet_Users WHERE LoweredUserName LIKE (LOWER(SUBSTRING(@FirstName,1,1) + @LastName + '%')) ORDER BY LoweredUserName DESC RETURN 2; END Application Code public string FetchLoginId(string firstName, string lastName) { SubSonic.StoredProcedure sp = SPs.UsersFetchLoginId( firstName, lastName, null ); sp.Command.AddReturnParameter(); sp.Execute(); if (sp.Command.Parameters.Find(delegate(QueryParameter queryParameter) { return queryParameter.Mode == ParameterDirection.ReturnValue; }).ParameterValue != System.DBNull.Value) { int returnCode = Convert.ToInt32(sp.Command.Parameters.Find(delegate(QueryParameter queryParameter) { return queryParameter.Mode == ParameterDirection.ReturnValue; }).ParameterValue, CultureInfo.InvariantCulture); if (returnCode == 1) { // UserName as First Character of First Name & Full Last Name return sp.Command.Parameters[2].ParameterValue.ToString(); } if (returnCode == 2) { DataSet ds = sp.GetDataSet(); if (null == ds || null == ds.Tables[0] || 0 == ds.Tables[0].Rows.Count) return ""; string maxLoginId = ds.Tables[0].Rows[0]["LoweredUserName"].ToString(); string initialLoginId = firstName.Substring(0, 1) + lastName; int maxLoginIdIndex = 0; int initialLoginIdLength = initialLoginId.Length; if (maxLoginId.Substring(initialLoginIdLength).Length == 0) { maxLoginIdIndex++; // UserName as Max Lowered User Name Found & Incrementer as Suffix (Here, First Incrementer i.e. 1) return (initialLoginId + maxLoginIdIndex); } if (int.TryParse(maxLoginId.Substring(initialLoginIdLength), out maxLoginIdIndex)) { if (maxLoginIdIndex > 0) { maxLoginIdIndex++; // UserName as Max Lowered User Name Found & Incrementer as Suffix return (initialLoginId + maxLoginIdIndex); } } } } Now the problem is for some input (see test data below), the login id created at sql server end correctly but at application subsonic dal side, it truncates some characters. First Name - Jenelia and Last Name - Kanupatikenalaalayampentyalavelugoplansubhramanayam [dbo].[Users_FetchLoginId] - Execute Stored Procedure Separately - Login Id Is Correct JKanupatikenalaalayampentyalavelugoplansubhramanayam public string FetchLoginId(string firstName, string lastName) - Application Code DAL Side - LginId Is Wrongly Received From Stored Procedure JKanupatikenalaalayampentyalavelugoplansubhramanay You can easily see that 2 charactes are removed. If the data is correctly generated by stored procedure then why the characters are removed when data is received in output parameter of stored procedure? Is it due to any internal known or unknown bug of SubSonic? Your help is significant. Thanks in advance...

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