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• Connection Timeout exception for a query using ADO.Net

  - by dragon

  Update: Looks like the query does not throw any timeout. The connection is timing out. This is a sample code for executing a query. Sometimes, while executing time consuming queries, it throws a timeout exception. I cannot use any of these techniques: 1) Increase timeout. 2) Run it asynchronously with a callback. This needs to run in a synchronous manner. please suggest any other techinques to keep the connection alive while executing a time consuming query? private static void CreateCommand(string queryString, string connectionString) { using (SqlConnection connection = new SqlConnection( connectionString)) { SqlCommand command = new SqlCommand(queryString, connection); command.Connection.Open(); command.ExecuteNonQuery(); } }

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• NSString not applying to UILabel

  - by lyonjtill

  - (void)restoreUserDefaults { NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; if([defaults objectForKey:@"Exam Name"] == nil) { examName = [[NSString alloc] initWithString:@"Name"]; } else { examName = [[NSString alloc] initWithString:[defaults objectForKey:@"Exam Name"]]; } [examNameLabel setText:examName]; NSLog(@"New Exam Schedule - Exam Name - %@",[defaults objectForKey:@"Exam Name"]); NSLog(@"examName = %@", examName); NSLog(@"examNameLabel = %@", examNameLabel); } Dear all, Basically above is a basic method to change a UILabel to a saved piece of data. I am having a problem making the label change to the NSString examName. I have checked Interface Builder and it's connected up. Any ideas why? Regards Lyon J Till

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• ApplicationCommand.Paste happens twice

  - by Carlo

  Hi, well this is driving me crazy. We have a command like so: <CommandBinding Command="ApplicationCommands.Paste" CanExecute="HasClipboardData" Executed="OnPasteExecuted"/> And the code for OnPasteExecuted is this: private void OnPasteExecuted(object sender, ExecutedRoutedEventArgs e) { CurrentView.Paste(); e.Handled = true; } That code gets executed twice, and I have no idea why, we also have the other commands: Cut, Copy, Undo, Redo, those work just fine, the problem is only with Paste. Let me know if you have any idea of what could be going on. Thanks!

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• Possible memory leak problem

  - by MaiTiano

  I write two pieces of c programs like following, during memcheck process using Valgrind, a lot of mem leak information is given. int GetMemory(int framewidth, int frameheight, int SR/*, int blocksize*//*,int ALL_REF_NUM*/) { //int i,j; int memory_size = 0; //int refnum = ALL_REF_NUM; int input_search_range = SR; memory_size += get_mem2D(&curFrameY, frameheight, framewidth); memory_size += get_mem2D(&curFrameU, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&curFrameV, frameheight>>1, framewidth>>1); memory_size += get_mem3D(&prevFrameY, refnum, frameheight, framewidth);// to allocate reference frame buffer accoding to the reference frame number memory_size += get_mem3D(&prevFrameU, refnum, frameheight>>1, framewidth>>1); memory_size += get_mem3D(&prevFrameV, refnum, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&mpFrameY, frameheight, framewidth); memory_size += get_mem2D(&mpFrameU, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&mpFrameV, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&searchwindow, input_search_range*2 + blocksize, input_search_range*2 + blocksize);// to allocate search window according to the searchrange /*memory_size +=*/ get_mem1D(/*&SAD_cost, height, width*/); // memory_size += get_mem2D(&searchwindow, 80, 80);// if searchrange is 32, then only 32+1+32+15 pixels is needed in each row and col, therefore the range of // search window is enough to be set to 80 ! memory_size += get_mem2Dint(&all_mv, height/blocksize, width/blocksize); return 0; } void FreeMemory(int refno) { free_mem2D(curFrameY); free_mem2D(curFrameU); free_mem2D(curFrameV); free_mem3D(prevFrameY,refno); free_mem3D(prevFrameU,refno); free_mem3D(prevFrameV,refno); free_mem2D(mpFrameY); free_mem2D(mpFrameU); free_mem2D(mpFrameV); free_mem2D(searchwindow); free_mem1D(); free_mem2Dint(all_mv); } void free_mem1D() { free(SAD_cost); } Now I hope to make sure where are the possible problems in my program? Here I may post some valgrind information to let you know about the actual error information. ==29105== by 0x804A906: main (me_search.c:1480) ==29105== ==29105== ==29105== HEAP SUMMARY: ==29105== in use at exit: 124,088 bytes in 18 blocks ==29105== total heap usage: 37 allocs, 21 frees, 749,276 bytes allocated ==29105== ==29105== 272 bytes in 1 blocks are still reachable in loss record 1 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804885E: GetMemory (me_search.c:117) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 352 bytes in 1 blocks are still reachable in loss record 2 of 18 ==29105== at 0x4024F20: malloc (vg_replace_malloc.c:236) ==29105== by 0x409537E: __fopen_internal (iofopen.c:76) ==29105== by 0x409544B: fopen@@GLIBC_2.1 (iofopen.c:107) ==29105== by 0x804A660: main (me_search.c:1439) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 3 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048724: GetMemory (me_search.c:106) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 4 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048747: GetMemory (me_search.c:107) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 5 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048809: GetMemory (me_search.c:114) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 6 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804882C: GetMemory (me_search.c:115) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are definitely lost in loss record 7 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804A4F8: get_mem3D (me_search.c:1393) ==29105== by 0x804879B: GetMemory (me_search.c:110) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are definitely lost in loss record 8 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804A4F8: get_mem3D (me_search.c:1393) ==29105== by 0x80487C9: GetMemory (me_search.c:111) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 1,168 bytes in 1 blocks are still reachable in loss record 9 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048701: GetMemory (me_search.c:105) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 1,168 bytes in 1 blocks are still reachable in loss record 10 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x80487E6: GetMemory (me_search.c:113) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 1,168 bytes in 1 blocks are definitely lost in loss record 11 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804A4F8: get_mem3D (me_search.c:1393) ==29105== by 0x804876D: GetMemory (me_search.c:109) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 6,336 bytes in 1 blocks are definitely lost in loss record 12 of 18 ==29105== at 0x4024F20: malloc (vg_replace_malloc.c:236) ==29105== by 0x804A25C: get_mem1D (me_search.c:1295) ==29105== by 0x8048866: GetMemory (me_search.c:119) ==29105== by 0x804A757: main (me_search.c:1456)

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• Formatting Problem Date with DateTime

  - by Florian

  Hello, I want to display a date with this format : MM/dd/yyyy HH:mm:ss tt for example : 01/04/2011 03:34:03 PM but I have a problem with the following code class Program { static void Main(string[] args) { DateTime dt = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day, 0, 0, 0); string displayedDate = dt.ToString("MM/dd/yyyy hh:mm:ss tt", CultureInfo.InvariantCulture); Console.WriteLine(displayedDate); Console.Read(); } } displays : 01/04/2011 12:00:00 AM instead of 01/04/2011 00:00:00 AM Anyone knows why ? Thank you !

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• Abstract Forms using WinForms

  - by pm_2

  I’m trying to achieve a similar affect in a WinForms application as a master form does with ASP.NET. My initial thoughts on this were to create a base form and declare it as abstract, but the compiler doesn’t seem to let me do this. public abstract partial class Master : Form { public Master() { InitializeComponent(); } } So I have two questions: Why will the compiler not let me do this? Am I using the wrong syntax or is this a genuine restriction. Can anyone suggest a workaround or better way to do this? EDIT: InitializeComponent code: private void InitializeComponent() { this.components = new System.ComponentModel.Container(); this.mainMenu1 = new System.Windows.Forms.MainMenu(); this.Menu = this.mainMenu1; this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi; this.Text = "Master"; this.AutoScroll = true; }

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• Flash and ActionScript

  - by Sonesh Dabhi

  I am not a flash/actionscript developer and I need to achieve a very small task in flash . I need to display user audio input level in flash . I found that I can do that using action script as below . I also checked this link . I have no idea what tools I need to use and generate a swf file . Any help highly appreciated . this.mic = Microphone.getMicrophone(); this.micTimer.addEventListener(TimerEvent.TIMER,this.timerHandler); this.micTimer.start(); this.mic.setLoopBack(true); return; public function timerHandler(event:TimerEvent):void { this.micVolume.setProgress(this.mic.activityLevel,100) return; }

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• std::deque: How do I get an iterator pointing to the element at a specified index?

  - by Ptah- Opener of the Mouth

  I have a std::deque, and I want to insert an element at a specified index (I'm aware that std::list would be better at this). The deque::insert() function takes an iterator to specify the location to insert. Given an index, how can I get an iterator pointing to that location, so that I can pass that iterator to insert()? For example: void insertThing ( deque<Thing> & things, Thing thing, size_t index ) { deque<Thing>::iterator it = /* what do I do here? */ things.insert ( it, thing ); } I'm sure this is a very basic question, and I apologize for it. It's been a long time since I've used the STL, and I don't see anything in std::deque's member list that obviously does what I want. Thanks.

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• How this is code is getting compiled even though we are using a constant which is defined later?

  - by GK

  In the following code DEFAULT_CACHE_SIZE is declared later, but it is used to assign a value to String variable before than that, so was curious how is it possible? public class Test { public String getName() { return this.name; } public int getCacheSize() { return this.cacheSize; } public synchronized void setCacheSize(int size) { this.cacheSize = size; System.out.println("Cache size now " + this.cacheSize); } private final String name = "Reginald"; private int cacheSize = DEFAULT_CACHE_SIZE; private static final int DEFAULT_CACHE_SIZE = 200; }

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• Is java HashMap.clear() and remove() memory effective?

  - by Shaman

  Consider the follwing HashMap.clear() code: /** * Removes all of the mappings from this map. * The map will be empty after this call returns. */ public void clear() { modCount++; Entry[] tab = table; for (int i = 0; i < tab.length; i++) tab[i] = null; size = 0; } It seems, that the internal array (table) of Entrys is never shrinked. So, when I add 10000 elements to a map, and after that call map.clear(), it will keep 10000 nulls in it's internal array. So, my question is, how does JVM handle this array of nothing, and thus, is HashMap memory effective?

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• Java: Netbeans debugging session works faster than normal run

  - by Martijn Courteaux

  Hello, I'm making Braid in Netbeans 6.7.1. Computer Spec: Windows 7 Running processes: 46 Running threads: +/- 650 NVidia GeForce 9200M GS Intel Core 2 Duo CPU P8400 @ 2.26Ghz Game-spec with normal run: Memory: between 80 MB and 110 MB CPU: between 9% and 20% CPU when time rewinding: 90% The same values for the debugging session, except when I rewind the time: CPU: 20%. Is there any reason for? Is there a way to reach the same performance with a normal run. This is my repaint code: @Override public void repaint() { BufferStrategy bs = getBufferStrategy(); // numBuffers: 4 Graphics g = bs.getDrawGraphics(); g.setColor(Color.BLACK); g.fillRect(-1, -1, 2000, 2000); gamePanel.paint(g.create(x, y, gameDim.width, gameDim.height)); bs.show(); g.dispose(); Toolkit.getDefaultToolkit().sync(); update(g); } The game runs in fullscreen (undecorated + frame.size = screensize) Martijn

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• How to convert culture specific double using TypeConverter?

  - by Christian

  Hi I have a problem with the TypeConverter class. It works fine with CultureInvariant values but cannot convert specific cultures like english 1000 seperators. Below is a small test program that I cannot get to work. using System; using System.Globalization; using System.ComponentModel; namespace TestConvertCulture { class Program { static void Main() { try { var culture = new CultureInfo( "en" ); TypeConverter typeConverter = TypeDescriptor.GetConverter( typeof ( double ) ); double value = (double)typeConverter.ConvertFromString( null, culture, "2,999.95" ); Console.WriteLine( "Value: " + value ); } catch( Exception e ) { Console.WriteLine( "Error: " + e.Message ); } } } }

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• Problem with signals and slots

  - by Jen

  I am creating a class with custom slots in Qt: class CustomEdit : public QTextEdit { Q_OBJECT public: CustomEdit(QWidget* parent); public slots: void onTextChanged (); }; However, I'm getting thise linker error: undefined reference to 'vtable for CustomEdit' The documentation says: if you get compiler errors along the lines of "undefined reference to vtable for LcdNumber", you have probably forgotten to run the moc or to include the moc output in the link command. ... but it is not obvious what that means. Is there something I need to add to my class, or to the .pro file?

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• RIA Services and Shared domainlogic??

  - by NPehrsson

  I'm kind of disappointed at Ria Services. I like to work in a domain driven design way, so for example if I'm working with an invoicing system I have an object invoice which will have all methods on it to for example calculate total price from its invoice rows. public decimal Amount { get {return Entries.Sum(x => x.Amount);} } I like to have methods to add a new row to validate in data. public void AddInvoiceRow(Article article, decimal quantity) This is functionality I need on both client and server side. Have I missed something big or is RIA Services not for me? (In the whole, I don't like Silverlight restrictions at all, I mean that we need get; set on every data field we want to transfer for example some fields are not public at all in domain driven design but the technique Silverlight offers forcing us to do bad coding.)

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• How to send a reply message to sender machine via serial port using c#

  - by karthik

  I am using the below code to receive the message via serial port which is working fine. Now i need to send back a acknowledgment message to the sender machine. How can send the message ? private void MonitorSP_DataReceived(object sender, SerialDataReceivedEventArgs e) { try { System.IO.Ports.SerialPort SP = (System.IO.Ports.SerialPort)sender; //Get the ports available in system string[] theSerialPortNames = System.IO.Ports.SerialPort.GetPortNames(); string strAvlPortNames = ""; foreach (string s in theSerialPortNames) { strAvlPortNames += s.ToString() + ", "; } //Read an contruct the message Thread.Sleep(1000); string msg = SP.ReadExisting(); string ConstructedMsg = "Port's Found : " + strAvlPortNames + "\n" + "Port Used : " + SP.PortName + "\n" + "Message Received : " + msg; if (InvokeRequired) { richTextBox1.Invoke(new MethodInvoker(delegate { richTextBox1.Text = ConstructedMsg; })); //Send acknowlegement to sender port SP.Write(SP.PortName); return; } } catch (Exception ex) { MessageBox.Show(ex.StackTrace.ToString()); } }

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• How to resize UILabel text after zooming UIScrollview zoomable

  - by netadictos

  I have an UIScrollview that is zoomable, the subview is one UIView (viewTexto) that contains an UILabel inside (messageLabel). This is the code - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollViewtmp{ return viewTexto; } -(void)scrollViewDidEndZooming:(UIScrollView *)scrollViewtmp withView:(UIView *)view atScale:(float)scale{ messageLabel.contentScaleFactor=scale; [scrollView setContentSize:CGSizeMake(scrollView.frame.size.width, messageLabel.frame.origin.y + messageLabel.frame.size.heightt)]; } With this code I can zoom, and the text is not blurry, there is no horizontal scroll but the size of the UILabel continues to be too large, so it is cut. I need that the width of the UILabel adopts to the scrollView width again as at the beginning. I have read any question about UIScrollViews in SO and having found exactly what I need.

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• Array of structures CLI

  - by Nitroglycerin

  public value struct ListOfWindows { HWND hWindow; int winID; String^ capName; }; thats my structure now i have created an array of them: array<ListOfWindows ^> ^ MyArray = gcnew array<ListOfWindows ^>(5); now to test if that works i made a simple function: void AddStruct( ) { HWND temp = ::FindWindow( NULL, "Test" ); if( temp == NULL ) return; MyArray[0]->hWindow = temp; // debug time error.. return; } ERROR: An unhandled exception of type 'System.NullReferenceException' occurred in Window.exe Additional information: Object reference not set to an instance of an object. dont know what to do.. kinda new to CLI so if you can help please do.. Thanks.

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• Invalid argument when calling linux splice()

  - by benny wallace

  Hi I wanted to try out the splice syscall. I have this function - it should copy content of one file to another: static void test_splice( int in, int out ) { int i = 0, rcvd = 0; int filedes[2]; off_t off = 0; if ( pipe( filedes ) < 0 ) { perror( "Kicha pipe" ); exit( EXIT_FAILURE ); } for ( i = 0; i < NUMLOOPS; ++i ) { if ( ( rcvd = splice( in, NULL, filedes[1], NULL, BUFSIZE, SPLICE_F_MORE | SPLICE_F_MOVE ) ) < 0 ) { perror( "splice" ); exit( EXIT_FAILURE ); } if ( splice( filedes[0], NULL, out, NULL, rcvd, SPLICE_F_MORE | SPLICE_F_MOVE ) < 0 ) { perror( "splice" ); exit( EXIT_FAILURE ); } } } The second call to splice in first iteration returns EINVAL ( invalid argument from perror ) everytime - what could be the reason?

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• Creating method templates in Eclipse

  - by stevebot

  Is there any way to do the following in eclipse? Have eclipse template a method like the following public void test(){ // CREATE MOCKS // CREATE EXPECTATIONS // REPLAY MOCKS // VERIFY MOCKS } so then I could presumably just use intellisense and select an option like "createtest" and have it stub out a method with the comments similar to the above?My problem is that often myself and other developers I know forgot all the steps we need to follow to do what we dub as a valid unit test for our application. If I could template our test methods to stub out the comments above it would be a big help.

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• Saving to SharedPreferences from custom DialogPreference

  - by Ronnie

  I've currently got a preferences screen, and I've created a custom class that extends DialogPreference and is called from within my Preferences. My preferences data seems store/retrieve from SharedPreferences without an issue, but I'm trying to add 2 more sets of settings from the DialogPreference. Basically I have two issues that I have not been able to find. Every site I've seen gives me the same standard info to save/restore data and I'm still having problems. Firstly I'm trying to save a username and password to my SharedPreferences (visible in the last block of code) and if possibly I'd like to be able to do it in the onClick(). My preferences XML that calls my DialogPreference: <?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"> <PreferenceCategory> <com.rone.optusmon.AccDialog android:key="AccSettings" android:title="Account Settings" android:negativeButtonText="Cancel" android:positiveButtonText="Save" /> </PreferenceCategory> </PreferenceScreen> My Preference Activity Class: package com.rone.optusmon; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.preference.Preference; import android.preference.Preference.OnPreferenceClickListener; import android.preference.PreferenceActivity; import android.view.KeyEvent; public class EditPreferences extends PreferenceActivity { Context context = this; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); } } My Custom DialogPreference Class file: package com.rone.optusmon; import android.content.Context; import android.content.DialogInterface; import android.content.SharedPreferences; import android.preference.DialogPreference; import android.preference.PreferenceManager; import android.text.method.PasswordTransformationMethod; import android.util.AttributeSet; import android.view.View; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; public class AccDialog extends DialogPreference implements DialogInterface.OnClickListener { private TextView mUsername, mPassword; private EditText mUserbox, mPassbox; CharSequence mPassboxdata, mUserboxdata; private CheckBox mShowchar; private Context mContext; private int mWhichButtonClicked; public AccDialog(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; } @Override protected View onCreateDialogView() { @SuppressWarnings("unused") LinearLayout.LayoutParams params; LinearLayout layout = new LinearLayout(mContext); layout.setOrientation(LinearLayout.VERTICAL); layout.setPadding(10, 10, 10, 10); layout.setBackgroundColor(0xFF000000); mUsername = new TextView(mContext); mUsername.setText("Username:"); mUsername.setTextColor(0xFFFFFFFF); mUsername.setPadding(0, 8, 0, 3); mUserbox = new EditText(mContext); mUserbox.setSingleLine(true); mUserbox.setSelectAllOnFocus(true); mPassword = new TextView(mContext); mPassword.setText("Password:"); mPassword.setTextColor(0xFFFFFFFF); mPassbox = new EditText(mContext); mPassbox.setSingleLine(true); mPassbox.setSelectAllOnFocus(true); mShowchar = new CheckBox(mContext); mShowchar.setOnCheckedChangeListener(mShowchar_listener); mShowchar.setText("Show Characters"); mShowchar.setTextColor(0xFFFFFFFF); mShowchar.setChecked(false); if(!mShowchar.isChecked()) { mPassbox.setTransformationMethod(new PasswordTransformationMethod()); } layout.addView(mUsername); layout.addView(mUserbox); layout.addView(mPassword); layout.addView(mPassbox); layout.addView(mShowchar); return layout; // Access default SharedPreferences SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this); } public void onClick(DialogInterface dialog, int which) { mWhichButtonClicked = which; // if statement to set save/cancel button roles if (mWhichButtonClicked == -1) { Toast.makeText(mContext, "Save was clicked", Toast.LENGTH_SHORT).show(); mUserboxdata = mUserbox.getText(); mPassboxdata = mPassbox.getText(); // Save user preferences SharedPreferences settings = getDefaultSharedPreferences(this); SharedPreferences.Editor editor = settings.edit(); editor.putString("usernamekey", (String) mUserboxdata); editor.putString("passwordkey", (String) mPassboxdata); } else { Toast.makeText(mContext, "Cancel was clicked", Toast.LENGTH_SHORT).show(); } } } In my SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this); line, Eclipse says "The method getDefaultSharedPreferences(AccDialog) is undefined for the type AccDialog". I've attempted to change the context to my preferences class, use a blank context and I've also tried naming my SharedPrefs and using "getSharedPreferences()" as well. I'm just not sure exactly what I'm doing here. As I'm quite new to Java/Android/coding in general, could you please be as detailed as possible with any help, eg. which of my files I need to write the code in and whereabouts in that file should I write it (i.e. onCreate(), onClick(), etc) Edit: I will need to the preferences to be Application-wide accessible, not activity-wide. Thanks

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• How to Display Validation Error Messages on an ASP.NET MVC Page?

  - by Yardstermister

  I am pretty new to ASP.NET and C# I have spent the day learning the basics of the ASP.NET Membership provider I have built all my validator but are getting stuck at outputting my error message on the page. private void LogCreateUserError(MembershipCreateStatus status, string username) { string reasonText = status.ToString(); switch (status) { case MembershipCreateStatus.DuplicateEmail: case MembershipCreateStatus.DuplicateProviderUserKey: case MembershipCreateStatus.DuplicateUserName: reasonText = "The user details you entered are already registered."; break; case MembershipCreateStatus.InvalidAnswer: case MembershipCreateStatus.InvalidEmail: case MembershipCreateStatus.InvalidProviderUserKey: case MembershipCreateStatus.InvalidQuestion: case MembershipCreateStatus.InvalidUserName: case MembershipCreateStatus.InvalidPassword: reasonText = string.Format("The {0} provided was invalid.", status.ToString().Substring(7)); break; default: reasonText = "Due to an unknown problem, we were not able to register you at this time"; break; } //CODE TO WRITE reasonText TO THE HTML PAGE ?? } What is the best way to output the varible result onto the page as I have relied upon the built in ASP:Validators until now.

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• Current Time Not working in WPF DLL

  - by Anu

  HI, I making one DLL in WPF,C# and im using it in VC++.In that DLL, ihave one textblock to display current time,But when i run the WPF application as WIndows application it shows current time correctly and also updated with new timings.But when i use it as Dll in VC++ applcation,the current time is not get updating.It shows the time when the applcaiton is loaded.thats all.Its not get updated. Code: public Button() { InitializeComponent(); DispatcherTimer dispatcherTimer = new DispatcherTimer(); dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick); dispatcherTimer.Interval = new TimeSpan(0, 0, 1); dispatcherTimer.Start(); } private void dispatcherTimer_Tick(object sender, EventArgs e) { DataContext = DateTime.Now.ToString("g"); } XAML: <TextBlock Margin="0,6,211,0" Name="textBlock1" Text="{Binding}"/>

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• Does copy_from_user modify the user pointer?

  - by Michael

  Does the copy_from_user function, declared in uaccess.h, modify the (void __user *)from pointer? The pointer isn't declared as const in the function declaration, only the contents it points to. The reason I ask is that I want to use copy_from_user twice, with the second copy_from_user copying from the place where the first one finished. I was planning on doing something like this, is it guaranteed to work? //buf is a user pointer that is already defined copy_from_user(my_first_alloced_region, buf, some_size); //do stuff copy_from_user(my_second_alloced_region, buf + some_size, some_other_size); Thanks in advance.

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• Detecting that the stack is full in C/C++

  - by Martin Kristiansen

  When writing C++ code I've learned that using the stack to store memory is a good idea. But recently I ran into a problem: I had an experiment that had code that looked like this: void fun(unsigned int N) { float data_1[N*N]; float data_2[N*N]; /* Do magic */ } The code exploted with a seqmentation fault at random, and I had no idea why. It turned out that problem was that I was trying to store things that were to big on my stack, is there a way of detecting this? Or at least detecting that it has gone wrong?

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• iphone/ipad adding adding and removing a subview doesnt work

  - by Mark

  Im have a slight amount of trouble adding a new view to my scene, I have the code like this: - (void) showMyDayView { NSLog(@"My Day View was touched"); MyDayViewController *temp = [[MyDayViewController alloc] initWithNibName: @"MyDayView" bundle:nil]; self.myDayViewController = temp; NSLog(@"superview: %@", [[self mainNavView] superview]); [[self mainNavView] removeFromSuperview]; NSLog(@"after removal main: %@", [self mainNavView]); NSLog(@"after removal view: %@", [self view]); NSLog(@"after removal superview: %@", [[self view] superview]); [[[self view] superview] addSubview: [self.myDayViewController view]]; [temp release]; } And when I run this code, the console says "after removal superview: (null)" so when I add the subView to the superview, nothing happens because the superview is null. Any ideas? Thanks Mark

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