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  • mail function in windows application

    - by Ranjana
    i have used a mail function. after inserting every record simultaneously from multiple PC. I have set a timer which ticks for every 2 min. while it ticks it start to check the record and it send the mail. i have used background worker for that.in Bgdworker the mail fn will be called. private void timer_Startsendingemail_Tick(object sender, EventArgs e) { if (!bgw_startsendingemail.IsBusy) bgw_startsendingemail.RunWorkerAsync(); } private void bgw_startsendingemail_DoWork(object sender, DoWorkEventArgs e) { sendingMail(); sendingsms(); } in sendingmail() fn the datas fetch from database and send the mail based on email settings to all the inserted rec. but the prob is the timer triggered for 2 min often , and the process will be working fine and nothing there in log file but sometime the mail is not received by the clients.how to fix the prob. how to find out where it is strucked... its hard to find the problem. any idea over this??????????/

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  • Updating my database

    - by Malcolm
    I am new with the subsonic, and I have a problem when trying to update the database from the sql server. I have created a gridview by still is not returning the updates results. can you please help me? its getting an error code on dc.AddMostaHse(); (Cannot implicity convert type 'void to 'object') Here is the code being done of DataAccess.cs page public void AddMostaHse() { Mosta.MostaHSE1 xx = new MostaHSE1(); xx.ID = 94; xx.FunctionLocation = "lza94"; xx.acno = 12; xx.Save(); } Binding it with the gridview. { DataAccess dc = new DataAccess(); gvtest.DataSource = dc.AddMostaHse(); gvtest.DataBind(); }

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  • Overriding setter on domain class in grails 1.1.2

    - by Pavel P
    I have following two domain classes in Grails 1.1.2: class A implements Serializable { MyEnumType myField Date fieldChanged void setMyField(MyEnumType val) { if (myField != null && myField != val) { myField = val fieldChanged = new Date() } } } class B extends A { List children void setMyField(MyEnumType val) { if (myField != null && myField != val) { myField = val fieldChanged = new Date() children.each { child -> child.myField = val } } } When I set B instance's myField, I get the setter into the cycle... myField = val line calls setter again instead of assiging the new value. Any hint how to override the setter correctly? Thanks

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  • non-static method setPrzechowaj(java.lang.String) cannot be referenced froma a static context

    - by bigbluedragon
    hey i have problem with JDialogForm. I have created it using netbeans 6.8. That JDialogForm have textfield and button below it. and here is some code... private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { String sciezka = jTextField1.getText(); if (sciezka.length() > 0) { Zmienne_pomocnicze.setPrzechowaj(sciezka); } } Now i want to copy that string "sciezka" to my main window but if I do it like this public class Zmienne_pomocnicze { public String n; public void setPrzechowaj (String neew) { n = neew; } public String getPrzechowaj () { return n; } } i get error in jButton1: non-static method setPrzechowaj(java.lang.String) cannot be referenced froma a static context any ideas?

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  • C++ (g++) Compile Error, Expected "="/etc. Before 'MyWindow" (my class name)

    - by Ell
    Hi all, I have a very strange problem and the following code wont compile: #ifndef MYWINDOW_HPP_INCLUDED #define MYWINDOW_HPP_INCLUDED class MyWindow{ private: WNDCLASSEX window_class; HWND window_handle; HDC device_context_handle; HGLRC open_gl_render_context; MSG message; BOOL quit; public: Window(int height=416, int width=544, WindowStyle window_style=WINDOWED); void Show(); void Close(); ~Window(); }; #endif // MYWINDOW_HPP_INCLUDED I get the following error: error: expected '=', ',', ';', 'asm' or 'attribute' before 'MyWindow' I can't see any syntax errors here, although I coukd be wrong as I am very (very) new in c++. Thanks in advance, ell.

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  • How to maintain fixed size of C variable types over different machines?

    - by Alex
    I've all this kind of functions. ssize_t fuc1(int var1, void *buf, size_t count); int func2(char *charPtr, int mode, int dev); short func3( long var2); problem is that data types in C has different sizes when compiled on different machines(64bit & 32bit). This is true for even void*. For some reasons. I need to ensure that these sizes all are same on every machine(64bit & 32bit). So, how should I modify these ?

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  • [Android] GPS can't run inside TimerTask

    - by user568553
    Hi, I am trying to write an android app that acquires a GPS signal at a fix time interval, for example every 1 minute. Since the requestLocationUpdate function does not exactly implement that, I tried to use task to accomplished it. public class getGPS extends TimerTask{ public void run(){ System.out.println("Running a GPS task"); locHandler = new locationUpdateHandler(); myManager.requestLocationUpdates(provider, 60000, 0, locHandler); } } public void LoadCoords(){ Timer timer = new Timer(); timer.scheduleAtFixedRate(new getGPS(), 0, 60000); } However, from what I've seen, requestLocationUpdates would run fine if I put it inside LoadCoords(), but would not run if I put it inside the TimerTask (ie no green icon on the task bar to show that GPS is looking for a fix). Can anyone please suggest an alternative approach or pseudo-code, or correct my mistake if there is one ? Thank you in advance.

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  • C# Bug or Brain Teaser? Cast working only with Coalesce (??) Operator

    - by Alex
    This is very strange, maybe someone can explain what's happening, or this is a bug (though I tend to think that this is probably just something intricate about C#). The following code throws the error "Cannot implicitly convert type 'uint?' to 'uint'.": public void Test(UInt32? p) { UInt32 x = p; } However, this code works without error: public void Test(UInt32? p) { UInt32 x = p ?? 1; } Huh? Why does this work? Why would the coalesce operator cause implicit conversion of UInt32? (nullable) to UInt32 (non-nullable), while the first error message says that there is no implicit conversion between those types?

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  • an asp.net routing issue

    - by Adam Right
    my route implementation on Global.asax protected void Application_Start(object sender, EventArgs e) { this.intRoutes(RouteTable.Routes); } void intRoutes(RouteCollection Rts) { Rts.MapPageRoute("search", "{language}/{page}", "~/search.aspx"); Rts.MapPageRoute("category", "{language}/{name}/{no}/{categoryname}", "~/category.aspx"); Rts.MapPageRoute("product", "{language}/{name}/{no}/{productname}", "~/product.aspx"); } the problem is; if i use product routing on a hyperlink, like as follows; <asp:HyperLink ID="hyProduct" NavigateUrl='<%#HttpUtility.UrlDecode(((Page)HttpContext.Current.Handler).GetRouteUrl("product", new{ language=getUIFromHelper(),name=getNameFromHelper(),no=Eval("code"),productname=getProductNameFromHelper(Eval("name"))})) %>' runat="server" Text="something" /> everything goes fine, the link is written as expected like /en/products/06.008.001.150.0510/davis-fish-seeker-green but when i click that link the category.aspx page runs insted of product.aspx. am i missing out something ?

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  • Distinguish between a single click and a double click in Java

    - by user552279
    Hi, I search the forum and see this codes: public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 2) { System.out.println(" and it's a double click!"); wasDoubleClick = true; } else { Integer timerinterval = (Integer) Toolkit.getDefaultToolkit().getDesktopProperty( "awt.multiClickInterval"); timer = new Timer(timerinterval.intValue(), new ActionListener() { public void actionPerformed(ActionEvent evt) { if (wasDoubleClick) { wasDoubleClick = false; // reset flag } else { System.out.println(" and it's a simple click!"); } } }); timer.setRepeats(false); timer.start(); } } but the code runs incorrectly(Sometime it prints out " and it's a single click!" 2 times . It should print out " and it's a double click!"). Can anybody show me why? or can you give me some better ways to do this? Thank you!

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  • Web Forms Routing not having correct path to images, css, scripts ...

    - by feronovak
    Hello, I am trying to use new .net 4.0 Routing for Web Forms with mixed success. protected void Application_Start(object sender, EventArgs e) { RegisterRoutes(RouteTable.Routes); } public static void RegisterRoutes(RouteCollection routes) { routes.MapPageRoute( "", "article/{id}/{title}", "~/ar.aspx", true, new RouteValueDictionary{{"id", "[0-9]*"}, {"title", ""}} ); } Routing as such works well on a local machine as well as a remote server. However, I am unable to find out how to set up routing in such a way that server ignores routing for images, css and scripts so it will be read as http://address/css/text.css instead of http://address/article/1212/some-text/css/text.css The only way I can make this work if I put tag into but I am sure it can be done other way. I would appreciate any help on this topic. Fero

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  • How to handle recurring execution?

    - by ShaneC
    I am trying to validate the solution I came up for what I think is a fairly typical problem. I have a service running and every 10 minutes it should do something. I've ended up with the following: private bool isRunning = true; public void Execute() { while(isRunning) { if(isRunning) { DoSomething(); m_AutoResetEvent.WaitOne(new Timespan(0, 10, 0)); } } } public void Stop() { isRunning = false; m_AutoResetEvent.Set(); } The immediate potential problems I can see is that I'm not doing any sort of locking around the isRunning modification in Stop() which gets called by another thread but I'm not sure I really need to? The worst that I think could happen is that it runs one extra cycle. Beyond that are there any obvious problems with this code? Is there a better way to solve this problem that I'm unaware of?

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  • Problem overridding virtual function

    - by William
    Okay, I'm writing a game that has a vector of a pairent class (enemy) that s going to be filled with children classes (goomba, koopa, boss1) and I need to make it so when I call update it calls the childclasses respective update. I have managed to create a example of my problem. #include <stdio.h> class A{ public: virtual void print(){printf("Hello from A");} }; class B : public A{ public: void print(){printf("Hello from B");} }; int main(){ A ab = B(); ab.print(); while(true){} } Output wanted: "Hello from B" Output got: "Hello from A" How do I get it to call B's print function?

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  • Java Passing variables around classes

    - by nazerb
    I am new to java and am trying to pass variables like in the following example from one class to another, im wondering is this possible and how i would go about it if it is. As this code does not work as it is not static. Main Class public class testAll { public static void main(String[] args) { One one = new One(); Two two = new Two(); } } The first class: public class One { public int test = 4; public int getTest() { return this.test; } } The second class: public class Two { public void value() { System.out.print("Var is: " + One.getTest()); } } Thanks, Naz

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  • How to detect tab key pressing in C#?

    - by user342325
    I want to detect when tab key is pressed in a textBox and focus the next textbox in the panel. I have tried out keyPressed method and keyDown method. But when I run the program and debug those methods are not calling when the tab key is pressed. Here is my code. private void textBoxName_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Tab) { textBoxUsername.Focus(); } } private void textBoxName_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar==(char)Keys.Tab) { textBoxUsername.Focus(); } } Please correct me.Thank you.

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  • How to set Minimum and Maximum Character limitation to EditText in Android?

    - by nishitpatel
    I am new to android here i have very silly problem i want to set my Edit text box minimum and maximum input value. Here I am creating one Simple validation for Edit text it only take A-Z and 0-9 value with minimum 5 and Maximum 8 character. I set the Maximum and other validation as follow. <EditText android:id="@+id/edittextKode_Listing" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginRight="5dp" android:layout_marginLeft="5dp" android:layout_alignTop="@+id/textKode_listing" android:layout_toRightOf="@+id/textKode_listing" android:maxLength="8" android:inputType="textCapCharacters" android:digits="0,1,2,3,4,5,6,7,8,9,ABCDEFGHIJKLMNOPQRSTVUWXYZ" /> but not able to set Minimum requirement. My Edit text is in alert dialog and i also apply the following code to solve this problem ` private void openInboxDialog() { LayoutInflater inflater = this.getLayoutInflater(); // declare dialog view final View dialogView = inflater.inflate(R.layout.kirim_layout, null); final EditText edittextKode = (EditText) dialogView.findViewById(R.id.edittextKode_Listing); final EditText edittextalamat = (EditText) dialogView.findViewById(R.id.edittextAlamat); edittextKode.setOnFocusChangeListener(new OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { // TODO Auto-generated method stub if(edittextKode.getText().toString().length() > 0){ if(edittextKode.getText().toString().length() < 5) { edittextKode.setError("Error"); Toast.makeText(GPSActivity.this, "Kode listing value not be less than 5", Toast.LENGTH_SHORT).show(); edittextKode.requestFocus(); } } } }); final AlertDialog.Builder builder = new AlertDialog.Builder(GPSActivity.this); builder.setTitle("Kirim").setView(dialogView) .setNeutralButton("OK", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub gpsCoordinates = (TextView) findViewById(R.id.text_GPS_Coordinates); kode = edittextKode.getText().toString(); alamat = edittextalamat.getText().toString(); catatan = edittextcatatan.getText().toString(); pengirim = edittextPengirim.getText().toString(); if (kode.length() > 0 && alamat.length() > 0 && catatan.length() > 0 && pengirim.length() > 0) { message = "Kode listing : " + kode + "\nAlamat : " + alamat + " \nCatatan : " + catatan + " \n Pengirim : " + pengirim + "\nKoordinat GPS : " + gpsCoordinates.getText().toString(); sendByGmail(); } else { Toast.makeText( getApplicationContext(), "Please fill all three fields to send mail", Toast.LENGTH_LONG).show(); } } }); builder.create(); builder.show(); }` in this alert dialog i have two edittext i want to apply my validation on first edittext i called the setOnFocusChangeListener to check its minimum length on focus change and if length is less than 5 request for focus but it still type in second edittext. please help me out.

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  • Function declaration in C and C++

    - by Happy Mittal
    I have two C++ files, say file1.cpp and file2.cpp as //file1.cpp #include<cstdio> void fun(int i) { printf("%d\n",i); } //file2.cpp void fun(double); int main() { fun(5); } When I compile them and link them as c++ files, I get an error "undefined reference to fun(double)". But when I do this as C files, I don't get error and 0 is printed instead of 5. Please explain the reason. Moreover I want to ask whether we need to declare a function before defining it because I haven't declared it in file1.cpp but no error comes in compilation.

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  • pthreads recursively calling system command and segfault appears

    - by jess
    I have a code base where i am creating 8 threads and each thread just calls system command to display date in a continuous cycle, as shown below: void * system_thread(void *arg) { int cpu = (int)arg; printf("thread : start %d\n", cpu); for (;;) { // date ã³ãã³ãã®å®è¡ if (mode == 0) { system("date"); } else { f_hfp_nlc_Fsystem("date"); } } sleep(timerval); return NULL; } This application segfaults after running for 2-3 seconds, due to following 2 reasons: 1. read access, where the address is out of VM area 2. write acces, where it does not of write permission and its trying to modify some structure.

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  • Write to text file using ArrayList

    - by Ugochukwutubelum Chiemenam
    The program is basically about reading from a text file, storing the current data into an ArrayList, then writing data (from user input) into the same text file. Kindly let me know where I am going wrong in this sub-part? The data inside the text file is as follows: abc t1 1900 xyz t2 1700 The compiler is showing an error at the line output.format("%s%s%s%n", public class justTesting { private Scanner input; private Formatter output; private ArrayList<Student> tk = new ArrayList<Student>(); public static void main(String[] args) { justTesting app = new justTesting(); app.create(); app.writeToFile(); } public void create() { Text entry = new Text(); Scanner input = new Scanner(System.in); System.out.printf("%s\n", "Please enter your name, ID, and year: "); while (input.hasNext()) { try { entry.setName(input.next()); entry.setTelNumber(input.next()); entry.setDOB(input.next()); for (int i = 0; i < tk.size(); i++) { output.format("%s%s%s%n", tk.get(i).getName(), tk.get(i) .getTelNumber(), tk.get(i).getDOB()); } } catch (FormatterClosedException fce) { System.err.println("Error writing to file."); return; } catch (NoSuchElementException nsee) { System.err.println("Invalid input. Try again: "); input.nextLine(); } System.out.printf("%s\n", "Please enter your name, ID, and year: "); } } public void writeToFile() { try { output = new Formatter("testing.txt"); } catch (SecurityException se) { System.err .println("You do not have write access permission to this file."); System.exit(1); } catch (FileNotFoundException fnfe) { System.err.println("Error opening or creating file."); System.exit(1); } } }

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  • Does C++ have a static polymorphism implementation of interface that does not use vtable?

    - by gilbertc
    Does C++ have a proper implementation of interface that does not use vtable? for example class BaseInterface{ public: virtual void func() const = 0; } class BaseInterfaceImpl:public BaseInterface{ public: void func(){ std::cout<<"called."<<endl; } } BaseInterface* obj = new BaseInterfaceImpl(); obj->func(); the call to func at the last line goes to vtable to find the func ptr of BaseInterfaceImpl::func, but is there any C++ way to do that directly as the BaseInterfaceImpl is not subclassed from any other class besides the pure interface class BaseInterface? Thanks. Gil.

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  • How to unregister a specific hotkey using c#

    - by srk
    I am using the below code to register a HotKey : RegisterGlobalHotKey(Keys.F4, USE_ALT); private void RegisterGlobalHotKey(Keys hotkey, int modifiers) { try { // increment the hot key value - we are just identifying // them with a sequential number since we have multiples mHotKeyId++; if (mHotKeyId > 0) { // register the hot key combination if (RegisterHotKey(this.Handle, mHotKeyId, modifiers, Convert.ToInt16(hotkey)) == 0) { // tell the user which combination failed to register - // this is useful to you, not an end user; the end user // should never see this application run MessageBox.Show("Error: " + mHotKeyId.ToString() + " - " + Marshal.GetLastWin32Error().ToString(), "Hot Key Registration"); } } } catch { // clean up if hotkey registration failed - // nothing works if it fails UnregisterGlobalHotKey(); } } private void UnregisterGlobalHotKey() { // loop through each hotkey id and // disable it for (int i = 0; i < mHotKeyId; i++) { UnregisterHotKey(this.Handle, i); } } How can i unregister the Hot key and Make Alt+ F4 keep working again ?

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  • conflicting types for a function return in C

    - by Adi
    Hi all, Here is my question : I am doing a recursive program and I am getting an error saying conflicting types: Code is : void* buddyMalloc(int req_size) { //Do something here// return buddy_findout(original_index,req_size); //This is the recursive fn I call// } void *buddy_findout(int current_index,int req_size) { char *selected = NULL; if(front!=NULL) { if(current_index==original_index) { //Do something here// return selected ; // } else { //Do Something here// return buddy_findout(current_index+1,req_size); } } else { return buddy_findout(current_index-1,req_size); } } In the above code , "I am getting error like : conflicting types of buddy_findout " Thanks for the help in advance aditya

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  • In a binary search Tree

    - by user1044800
    In a binary search tree that takes a simple object.....when creating the getter and setter methods for the left, right, and parent. do I a do a null pointer? as in this=this or do I create the object in each method? Code bellow... This is my code: public void setParent(Person parent) { parent = new Person( parent.getName(), parent.getWeight()); //or is the parent supposed to be a null pointer ???? This is the code it came from: public void setParent(Node parent) { this.parent = parent; } Their code takes a node from the node class...my set parent is taking a person object from my person class.....

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  • Why wasn't C# designed with 'const' for variables and methods?

    - by spoulson
    I suspect const was simplified for the C# spec for general language simplicity. Was there a specific reason we can't declare variable references or methods as const like we can with C++? e.g.: const MyObject o = new MyObject(); // Want const cast referenece of MyObject o.SomeMethod(); // Theoretically legal because SomeMethod is const o.ChangeStuff(); // Theoretically illegal because ChangeStuff is not const class MyObject { public int val = 0; public void SomeMethod() const { // Do stuff, but can't mutate due to const declaration. } public void ChangeStuff() { // Code mutates this instance. Can't call with const reference. val++; } }

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  • Autorelease and properties

    - by ganuke
    I have few questions to ask about the following class #import <Cocoa/Cocoa.h> @interface SomeObject { NSString *title; } @property (retain) NSString *title; @end implementation SomeObject @synthesize title; -(id)init { if (self=[super init]) { self.title=[NSString stringWithFormat:@"allyouneed"]; } return self; } -(void)testMethod{ self.title=[[NSString alloc] init] ; } -(void)dealloc { self.title=nil; [super dealloc]; } In the .h file do we need to declare the title and sub when we add the property. is it not enough to add the @property (retain) NSString *title; line. 2.Do i need to autorelease both assignment to title in the init and testMethod. if So why? Can some one explain these things to me.

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