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  • Android: Is it better to start and stop a service each time it is needed or to let a service run and

    - by Flo
    I'm developing an app that checks several conditions during an incoming phone call. The main parts of the app are a BroadcastReceiver listening for Intents related to the phone's status and a local Service checking the conditions. At the moment the service is started each time an incoming call is detected and is stopped when the phone status changed back to idle. Now I'm wondering if this procedure is correct and whether it is reasonable to start and stop the service related to the phone's status. Or would it be better to let the service run regardless of the phone's status and bind/unbind to/from it when needed. Are there any performance issues I would have to think about? Perhaps it is more expensive to start/stop a service than letting it run and communicate with it. Are there any best practices out there regarding the implementation of services?

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  • Django view function design

    - by dragoon
    Hi, I have the view function in django that written like a dispatcher calling other functions depending on the variable in request.GET, like this: action = '' for act in ('view1', 'view2', 'view3', 'view4', ... ): if act in request.GET: action = act break ... if action == '': response = view0(request, ...) elif action == 'view1': response = view1(request, ...) elif action == 'view2': response = view2(request, ...) ... The global dispatcher function contains many variable initialization routines and these variables are then used in viewXX functions. So I feed that this is bad view design but I don't know how I can rewrite it?

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  • The node to be inserted is from a different document context

    - by BDotA
    When I am Calling AppendChild, I get this error: The node to be inserted is from a different document context." static public XmlNode XMLNewChildNode(XmlNode oParent, string sName, string sNamespaceURI, string sNodeType) { XmlNode oNode = moDoc.CreateNode(sNodeType, sName, sNamespaceURI); oParent.AppendChild(oNode); return oNode; } this is a code that is converted from its VB 6.0 version which was this: please ignore the optional parametes, I have overloads for them in C# version: Public Function XMLNewChildNode(ByVal oParent As IXMLDOMNode, ByVal sName As String, Optional ByVal sNamespaceURI As String = "", Optional ByVal sNodeType As String = "element") As IXMLDOMNode '**************** DESCRIPTION ******************* 'Create a new Child Node for passed Parent. '***************** VARIABLES ******************** Dim oNode As IXMLDOMNode '************************************************ Set oNode = moDoc.createNode(sNodeType, sName, sNamespaceURI) Call oParent.appendChild(oNode) Set XMLNewChildNode = oNode End Function so anything is different in VB 6.0 and C# for working with XMLs?

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  • Table-level diff and sync procedure for T-SQL

    - by Ville Koskinen
    I'm interested in T-SQL source code for synchronizing a table (or perhaps a subset of it) with data from another similar table. The two tables could contain any variables, for example I could have base table source table ========== ============ id val id val ---------- ------------ 0 1 0 3 1 2 1 2 2 3 3 4 or base table source table =================== ================== key val1 val2 key val1 val2 ------------------- ------------------ A 1 0 A 1 1 B 2 1 C 2 2 C 3 3 E 4 0 or any two tables containing similar columns with similar names. I'd like to be able to check that the two tables have matching columns: the source table has exactly the same columns as the base table and the datatypes match make a diff from the base table to the source table do the necessary updates, deletes and inserts to change the data in the base table to correspond the source table optionally limit the diff to a subset of the base table, preferrably with a stored procedure. Has anyone written a stored proc for this or could you point to a source?

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  • JBoss Seam: components injected into POJOs, but not Session Beans

    - by purecharger
    I have a Seam component that handles login, with the name "authenticator": @Name("authenticator") public class AuthenticatorAction implements Authenticator { @PersistenceContext private EntityManager em; @In(required=false) @Out(required=false, scope = SESSION) private User user; public boolean authenticate(){ ... } } This works just fine, Seam injects the EntityManager instance. However, as soon as I add the @Stateless annotation, none of the injection happens! In this case, the EntityManager instance is null upon entry to the authenticate() method. Another interesting note is that with a separate stateful session bean I have, the Logger instance in that class is only injected if I make it static. If i have it non-static, it is not injected. Thats fine for the logger, but for stateless session beans like that, I obviously can't have static member variables for these components. I'm confused because this authenticator is exactly how it is in the Seam booking example: a stateless session bean with a private member variable being injected. Any ideas?

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  • Should I use `!IsGood` or `IsGood == false`?

    - by chills42
    I keep seeing code that does checks like this if (IsGood == false) { DoSomething(); } or this if (IsGood == true) { DoSomething(); } I hate this syntax, and always use the following syntax. if (IsGood) { DoSomething(); } or if (!IsGood) { DoSomething(); } Is there any reason to use '== true' or '== false'? Is it a readability thing? Do people just not understand Boolean variables? Also, is there any performance difference between the two?

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  • Creating a customized video using Flash and XML

    - by Aaron Ladage
    The problem: I have to create a Flash video (in CS3) that will query a MySQL database and display that data at certain points in the video. The bigger problem: I'm not a Flash/ActionScript developer, so this is all very foreign to me! I've divided this project into two parts: a.) dynamically generate an XML feed from the data using PHP (using an ID number passed in the URL's query string), and b.) be able to work with it in Flash. I've got the first part working, but am pretty lost in Flash. I can parse the XML, but I'm not sure how to set the data up as variables and attach it to a video's cue points. Can anyone point me in the direction of a good tutorial or offer some advice?

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  • sqlite no such table

    - by Graham B
    can anyone please help. I've seen many people with the same problem and looked at all suggestions but still cannot get this to work. I have tried to unistall the application and install again, I have tried to change the version number and start again. I've debugged the code and it does go into the onCreate function, but when I go to make a select query it says the users table does not exist. Any help would greatly be appreciated. Thanks guys DatabaseHandler Class public class DatabaseHandler extends SQLiteOpenHelper { // Variables protected static final int DATABASE_VERSION = 1; protected static final String DATABASE_NAME = "MyUser.db"; // Constructor public DatabaseHandler(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } // Creating Tables @Override public void onCreate(SQLiteDatabase db) { // Create the Users table // NOTE: I have the column variables saved above String CREATE_USERS_TABLE = "CREATE TABLE IF NOT EXISTS Users(" + KEY_PRIMARY_ID + " " + INTEGER + " " + PRIMARY_KEY + " " + AUTO_INCREMENT + " " + NOT_NULL + "," + USERS_KEY_EMAIL + " " + NVARCHAR+"(1000)" + " " + UNIQUE + " " + NOT_NULL + "," + USERS_KEY_PIN + " " + NVARCHAR+"(10)" + " " + NOT_NULL + ")"; db.execSQL(CREATE_USERS_TABLE); } // Upgrading database @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS Users"); onCreate(db); } UserDataSource class public class UserDataSource { private SQLiteDatabase db; private DatabaseHandler dbHandler; public UserDataSource(Context context) { dbHandler = new DatabaseHandler(context); } public void OpenWriteable() throws SQLException { db = dbHandler.getWritableDatabase(); } public void Close() { dbHandler.close(); } // Validate the user login with the username and password provided public void ValidateLogin(String username, String pin) throws CustomException { Cursor cursor = db.rawQuery( "select * from Users where " + DatabaseHandler.USERS_KEY_EMAIL + " = '" + username + "'" + " and " + DatabaseHandler.USERS_KEY_PIN + " = '" + pin + "'" , null); ........ } Then in the activity class, I'm calling UserDataSource uds = new UserDataSource (this); uds.OpenWriteable(); uds.ValidateLogin("name", "pin"); Any help would be great, thanks very much Graham The following is the attached log from the error report 11-23 17:47:46.414: I/SqliteDatabaseCpp(26717): sqlite returned: error code = 1, msg = no such table: Users, db=/data/data/prometric.myitemwriter/databases/MyUser.db 11-23 17:47:57.085: D/AndroidRuntime(26717): Shutting down VM 11-23 17:47:57.085: W/dalvikvm(26717): threadid=1: thread exiting with uncaught exception (group=0x40bec1f8) 11-23 17:47:57.171: D/dalvikvm(26717): GC_CONCURRENT freed 575K, 8% free 8649K/9351K, paused 2ms+6ms 11-23 17:47:57.179: E/AndroidRuntime(26717): FATAL EXCEPTION: main 11-23 17:47:57.179: E/AndroidRuntime(26717): java.lang.IllegalStateException: Could not execute method of the activity 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.view.View$1.onClick(View.java:3091) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.view.View.performClick(View.java:3558) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.view.View$PerformClick.run(View.java:14152) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.os.Handler.handleCallback(Handler.java:605) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.os.Handler.dispatchMessage(Handler.java:92) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.os.Looper.loop(Looper.java:137) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.app.ActivityThread.main(ActivityThread.java:4514) 11-23 17:47:57.179: E/AndroidRuntime(26717): at java.lang.reflect.Method.invokeNative(Native Method) 11-23 17:47:57.179: E/AndroidRuntime(26717): at java.lang.reflect.Method.invoke(Method.java:511) 11-23 17:47:57.179: E/AndroidRuntime(26717): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 11-23 17:47:57.179: E/AndroidRuntime(26717): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 11-23 17:47:57.179: E/AndroidRuntime(26717): at dalvik.system.NativeStart.main(Native Method) 11-23 17:47:57.179: E/AndroidRuntime(26717): Caused by: java.lang.reflect.InvocationTargetException 11-23 17:47:57.179: E/AndroidRuntime(26717): at java.lang.reflect.Method.invokeNative(Native Method) 11-23 17:47:57.179: E/AndroidRuntime(26717): at java.lang.reflect.Method.invoke(Method.java:511) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.view.View$1.onClick(View.java:3086) 11-23 17:47:57.179: E/AndroidRuntime(26717): ... 11 more 11-23 17:47:57.179: E/AndroidRuntime(26717): Caused by: android.database.sqlite.SQLiteException: no such table: Users: , while compiling: select * from Users where email = '' and pin = '' 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:68) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteProgram.compileSql(SQLiteProgram.java:143) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteProgram.compileAndbindAllArgs(SQLiteProgram.java:361) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:127) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:94) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:53) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1685) 11-23 17:47:57.179: E/AndroidRuntime(26717): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1659) 11-23 17:47:57.179: E/AndroidRuntime(26717): at projectname.database.UserDataSource.ValidateLogin(UserDataSource.java:73) 11-23 17:47:57.179: E/AndroidRuntime(26717): at projectname.LoginActivity.btn_login_Click(LoginActivity.java:47) 11-23 17:47:57.179: E/AndroidRuntime(26717): ... 14 more

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  • Jquery - dynamic DIV onclick binding

    - by Murtaza RC
    I have a main page from where I am making a call to "load" and intermediate page's HTML and on the completion of the load I am massaging the returned HTML to add a few DIVs etc, when I try to bind an onclick event for the dynamic Divs (added by me after the HTML returned from the intermediate page) it does not seem to work at all !: LOAD : $j(".loader").load(myURLtoIntermediatePage, '', function() { var HTML= '<div id="abcd">test</div>'; ... $j(".pageDIV").append(HTML); } DOCUMENT READY Function $j(document).ready(function() { $j('#abcd').onclick(function() { alert($j(this)); }); });

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  • Passing switches to Xcode 3.1 user scripts

    - by MyztikJenz
    I have a user script that would be much more useful if it could dynamically change some of its execution dependent on what the user wanted. Passing simple switches would easily solve this problem but I don't see any way to do it. I also tried embedding a keyword in the script name, but Xcode copies the script to a guid-looking filename before execution, so that won't work either. So does anyone know of a way to call a user script with some sort of argument? (other that the normal %%%var%%% variables) Thanks! EDIT: User scripts are accessible via the script menu in Xcode's menubar (between the Window and Help menus). My question is not about "run script" build phase scripts. My apologies for leaving that somewhat ambiguous.

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  • Problem with between join for sqlalchemy orm relation.

    - by Gary van der Merwe
    I'm trying to create a relation that has a between join. Here is a shortish example of what I'm trying to do: #!/usr/bin/env python import sqlalchemy as sa from sqlalchemy import orm from sqlalchemy.engine.base import Engine from sqlalchemy.ext.declarative import declarative_base metadata = sa.MetaData() Base = declarative_base(metadata=metadata) engine = sa.create_engine('sqlite:///:memory:') class Network(Base): __tablename__ = "network" id = sa.Column(sa.Integer, primary_key=True) ip_net_addr_db = sa.Column('ip_net_addr', sa.Integer, index=True) ip_broadcast_addr_db = sa.Column('ip_broadcast_addr', sa.Integer, index=True) # This can be determined from the net address and the net mask, but we store # it in the db so that we can join with the address table. ip_net_mask_len = sa.Column(sa.SmallInteger) class Address(Base): __tablename__ = "address" ip_addr_db = sa.Column('ip_addr', sa.Integer, primary_key=True, index=True, unique=True) Network.addresses = orm.relation(Address, primaryjoin=Address.ip_addr_db.between( Network.ip_net_addr_db, Network.ip_broadcast_addr_db), foreign_keys=[Address.ip_addr_db]) metadata.create_all(engine) Session = orm.sessionmaker(bind=engine) Network() I you run this, you get this error: ArgumentError: Could not determine relation direction for primaryjoin condition 'address.ip_addr BETWEEN network.ip_net_addr AND network.ip_broadcast_addr', on relation Network.addresses. Do the columns in 'foreign_keys' represent only the 'foreign' columns in this join condition ? The answer to that question is Yes, but I cant figure out how to tell it that

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  • Best practice for assigning A/B test variation based on IP address

    - by mojones
    I am starting to write some code for A/B testing in a Grails web application. I want to ensure that requests from the same IP address always see the same variation. Rather than store a map of IP-variant, is it OK to simply turn the IP address into an integer by removing the dots, then use that as the seed for a random number generator? The following is taking place in a Grails Filter: def ip = request.remoteAddr def random = new Random(ip.replaceAll(/\./, '').toInteger()) def value = random.nextBoolean() session.assignment = value // value should always be the same for a given IP address I know that identifying users by IP address is not reliable, and I will be using session variables/cookies as well, but this seems to be useful for the case where we have a new session, and no cookies set (or the user has cookies disabled).

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  • Can I create object names from a text file in Python 2.7?

    - by user560100
    I'm working on a game project. I've created an object, Star(Object). I want to assign the name of the variables, dynamically, from a text file. If I have a text file with: Sol Centauri Vega I want the program to create the Star(Object) with variable names from the text file. I want the process automated, because I'm looking to create hundreds of stars. I could write the code out by hand: Sol = Star(Sol) Centauri = Star(Centauri) Vega = Star(Vega) But isn't there a way to automate this? Essentially, what I eventually want is a tuple with the list of stars, as their own objects. Then, when I am doing game maintenance, I can just iterate over all the objects in the tuple.

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  • How to make Databinding type safe and support refactoring

    - by Ian Ringrose
    When I wish to bind a control to a property of my object, I have to provide the name of the property as a string. This is not very good because: If the property is removed or renamed, I don’t get a compiler warning. If a rename the property with a refactoring tool, it is likely the data binding will not be updated. I don’t get an error until runtime if the type of the property is wrong, e.g. binding an integer to a date chooser. Is there a design-paten that gets round this, but still has the ease of use of data-binding? (This is a problem in WinForm, Asp.net and WPF and most likely lots of other systems) I have now found "workarounds for nameof() operator in C#: typesafe databinding" that also has a good starting point for a solution.

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  • Why trigger fired only once when running on a JQuery Object?

    - by Shlomi.A.
    Hi I got an array. I'm running over it for (i = 0; i < sugestionsArray.length; i++) { $('li.groupCode' + sugestionsArray[i] + ' span').addClass('checkedInput'); $('option[value=' + sugestionsArray[i] + ']').attr('selected', 'selected'); } And this loop runs 3 times perfectly, adding classname and playing with the option. instead of adding a clasname, i'm trying to trigger a click over the span $('li.groupCode' + sugestionsArray[i] + ' span').trigger('click'); which in his turn has a click event bind to it using jq as well Span.click(function() {}) for some reason my loop breaks after the first click. he is leaving the loop and don't continue to the next 2 loops after him. only the first span is been clicked. does anyone has an idea?

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  • Problems with CGPoint in touches event

    - by Jason
    I'm having some problems with storing variables from my touch events. The warning I get when I run this is that coord and icoord are unused, but I used them in the viewDidLoad implementation, is there a reason why this does not work? Any suggestions? -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint icoord = [touch locationInView:touch.view]; } -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint coord = [touch locationInView:touch.view]; } - (void)viewDidLoad { if (coord.x > icoord.x) { player.center = CGPointMake(player.center.x + 5, player.center.y); } } Thanks.

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  • Practical differences between classes and structs in .net (not conceptual)?

    - by Gulshan
    Whenever I tried to search about differences between classes and structs in C# or .net, I ended up with the conceptual overview of the two things like value type or the reference type, where the variables are allocated etc. But I need some practical differences. I have found some like different behavior of assignment operator, having constructors etc. Can anybody provide some more practical differences which will be directly useful while coding? Like the things works with one but not with other or same operation showing different behavior. And some common mistakes regarding these two. Also please suggest where to consider using a struct instead of a class. And where the structs should not be used.

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  • BindData to ITemplate for GridView in code behind

    - by tbischel
    How do I programmatically bind data to a custom item template column for a GridView? So far, I've done something similar to this: TemplateField foo = new TemplateField(); foo.ItemTemplate = new bar(); this.GridView1.Columns.Add(foo); where bar is like this: public class bar : ITemplate { public bar() { } public void InstantiateIn(Control container) { DropDownList ddl = new DropDownList(); container.Controls.Add(ddl); } } (the actual dropdownlist is populated) But ITemplate doesn't contain any kind of data binding properties to implement, and the TemplateField class doesn't seem to have any either... What do I do?

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  • Android MediaPlayer crashing app

    - by user1555863
    I have an android app with a button that plays a sound. the code for playing the sound: if (mp != null) { mp.release(); } mp = MediaPlayer.create(this, R.raw.match); mp.start(); mp is a field in the activity: public class Game extends Activity implements OnClickListener { /** Called when the activity is first created. */ //variables: MediaPlayer mp; //... The app runs ok, but after clicking the button about 200 times on the emulator, app crashed and gave me this error https://dl.dropbox.com/u/5488790/error.txt (couldn't figure how to post it here so it will appear decently) i am assuming this is because the MediaPlayer object is consuming up too much memory, but isn't mp.release() supposed to take care of this? What am i doing wrong here?

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  • Client fails to connect with RMI registry when using ProcessBuilder

    - by xavier666
    If i'm creating the RMI registry from command line, the client has no problem in binding objects to the registry. However, if i'm starting the RMI registry using ProcessBuilder, it's giving error. This is my code for creating rmiregistry using ProcessBuilder ProcessBuilder obj = new ProcessBuilder ("rmiregistry","2500"); Process obj_process = obj.start(); The error that i'm getting for using ProcessBuilder when I'm trying to bind to my own RMI registry java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: node_func node_func is an interface Any ideas?

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  • ASP.NET MVC: Is it good to access HttpContext in a controller?

    - by Zach
    I've been working with ASP.NET(WebForm) for a while, but new to ASP.NET MVC. From many articles I've read, in most cases the reason that the controllers are hard to test is because they are accessing the runtime components: HttpContext (including Request, Response ...). Accessing HttpContext in a controller seems bad. However, I must access these components somewhere, reading input from Request, sending results back via Response, and using Session to hold a few state variables. So where is the best place to access these runtime components if we don't access them in a controller? Best regards, Zach@Shine

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  • Why is WPO(whole-program optimization) not doing any improvements in my program size? (FPC 2.4.0)

    - by Gregory Smith
    I use FPC 2.4.0 for WinXP(binary from the official page), also tryed with same version but compiled from source on my comp. I put something like this: I:\pascal\fpc-2.4.0.source\fpc-2.4.0\compiler\ppc386 -FWserver-1.wpo -OWsymbolliveness -CX -XX -Xs- -al -Os -oServer1.o Server I:\pascal\fpc-2.4.0.source\fpc-2.4.0\compiler\ppc386 -FWserver-2.wpo -OWsymbolliveness -Fwserver-1.wpo -Owsymbolliveness -CX -XX -Xs- -al -Os -oServer2.o Server ..(up to 100 times) but always same .wpo files, and same .o sizes(.s, assembly files change intermittently) I also not(through compiler messages), that not used variables are still alive. Also tryed -OWall -owall What am i doing wrong?

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  • Filling data in FormView from different tables

    - by wacky_coder
    Hi, I am using a FormView in an online quiz page for displaying the questions and RadioButtons (for answers) http://stackoverflow.com/questions/2438219/online-quiz-using-asp-dot-net Now, I need to pick the questions according to a TestID and a particular Set of that Test. The testid and the set_number would be passed using Session variables. I'm having 3 testIDs and 3 Sets per TestID and, thus, am using 9 tables to store the Questions, the Options and the correct answer. I need help on how to set the FormView so that it extracts the questions from a particular table only. Do I need to use a StoredProcedure ? If yes, how? PS: If I use only one table to store all the questions from each Set and for each TestID, I can do that, but I'd prefer using separate tables.

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  • How to pass the parameter in SQL query from PowerShell

    - by Zshava
    I have this code in PowerShell, that executes SQL query for UPDATE table: $Connection=new-object data.sqlclient.sqlconnection "server=server;database=mydb;trusted_connection=true;" $Connection.open() For( $i = 0; $i -le $ActID.Length; $i ++ ){ $cmd = New-Object System.Data.SqlClient.SqlCommand $cmd.Connection = $Connection $cmd.CommandText = " update Table set Note = @PATH " $cmd.Parameters.Add("@PATH", $ActID[$i].Values) | Out-Null $cmd.ExecuteNonQuery() } I try to update table with variable defined in this string: $cmd.Parameters.Add("@PATH", $ActID[$i].Values) | Out-Null But when i try to execute script, error log says that there is no value passed in $ActID[$i] Is there other methods to pass parameters (variables) in powershell queries?

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  • Preventing focus on next form element after showing alert using JQuery

    - by digitalsanctum
    I have some text inputs which I'm validating when a user tabs to the next one. I would like the focus to stay on a problematic input after showing an alert. I can't seem to nail down the correct syntax to have JQuery do this. Instead the following code shows the alert then focuses on the next text input. How can I prevent tabbing to the next element after showing an alert? $('input.IosOverrideTextBox').bind({ blur: function(e) { var val = $(this).val(); if (val.length == 0) return; var pval = parseTicks(val); if (isNaN(pval) || pval == 0.0) { alert("Invalid override: " + val); return false; } }, focus: function() { $(this).select(); } });

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