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  • C#/MonoDevelop: GTK MessageDialogs require a doubleclick to close - why?

    - by Connel
    I'm a newbie programmer writting a program in MonoDevelop in C# and have a porblem with my gtk MessageDialogs. The close button on the window boarders of my GTK Message dialogues require a double click to actually close them. The close button on the dialogue its self works fine. Could someone please tell me how I can fix this below is the code: if (fchDestination.CurrentFolder == fchTarget.CurrentFolder) { MessageDialog msdSame = new MessageDialog(this, DialogFlags.Modal, MessageType.Error, ButtonsType.Close, "Destination directory cannot be the same as the target directory"); msdSame.Title="Error"; if ((ResponseType) msdSame.Run() == ResponseType.Close) { msdSame.Destroy(); } return; } if (fchTarget.CurrentFolder.StartsWith(fchDestination.CurrentFolder)) { MessageDialog msdContains = new MessageDialog(this, DialogFlags.Modal, MessageType.Error, ButtonsType.Close, "error"); msdContains.Title="Error"; if ((ResponseType) msdContains.Run() == ResponseType.Close) { msdContains.Destroy(); } return; }

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  • HttpContext.Current.Request.UserHostName is empty when called from a class

    - by John Galt
    I have various web pages that need to build up a URL to display or place it in an emitted email message. The code I inherited had this value for the name of the webserver in a Public Const in a Public Class called FixedConstants. For example: Public Const cdServerName As String = "WEBSERVERNAME" Trying to improve on this, I wrote this: Public Class UIFunction Public Shared myhttpcontext As HttpContext Public Shared Function cdWebServer() As String Dim s As New StringBuilder("http://") Dim h As String h = String.Empty Try h = Current.Request.ServerVariables("REMOTE_HOST").ToString() Catch ex As Exception Dim m As String m = ex.Message.ToString() 'Ignore this should-not-occur thingy End Try If h = String.Empty Then h = "SomeWebServer" End If s.Append(h) s.Append("/") Return s.ToString() End Function I've tried different things while debugging such as HttpContext.Current.Request.UserHostName and I always get an empty string which pumps out my default string "SomeWebServer". I know Request.UserHostName or Request.ServerVariables("REMOTE_HOST") works when invoked from a page but why does this return empty when invoked from a called method of a class file (i.e. UIFunction.vb)?

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  • calculix data visualizor using QT

    - by Ann
    include "final1.h" include "ui_final1.h" include include include ifndef GL_MULTISAMPLE define GL_MULTISAMPLE 0x809D endif define numred 100 define numgrn 10 define numblu 6 final1::final1(QWidget *parent) : QGLWidget(parent) { setFormat(QGLFormat(QGL::SampleBuffers)); rotationX = -38.0; rotationY = -58.0; rotationZ = 0.0; scaling = .05; // glPolygonMode(GL_FRONT_AND_BACK,GL_FILL); //createGradient(); createGLObject(); } final1::~final1() { makeCurrent(); glDeleteLists(glObject, 1); } void final1::paintEvent(QPaintEvent * /* event */) { QPainter painter(this); draw(); } void final1::mousePressEvent(QMouseEvent *event) { lastPos = event-pos(); } void final1::mouseMoveEvent(QMouseEvent *event) { GLfloat dx = GLfloat(event-x() - lastPos.x()) / width(); GLfloat dy = GLfloat(event-y() - lastPos.y()) / height(); if (event->buttons() & Qt::LeftButton) { rotationX += 180 * dy; rotationY += 180 * dx; update(); } else if (event->buttons() & Qt::RightButton) { rotationX += 180 * dy; rotationZ += 180 * dx; update(); } lastPos = event->pos(); } void final1::createGLObject() { makeCurrent(); GLfloat f1[150],f2[150],f3[150],length=0; qreal size=2; int k=1,a,b,c,d,e,f,g,h,element_node_no=0; GLfloat x,y,z; QString str1,str2,str3,str4,str5,str6,str7,str8; int red,green,blue,index=1,displacement; int LUT[1000][3]; for(red=100;red glShadeModel(GL_SMOOTH); glObject = glGenLists(1); glNewList(glObject, GL_COMPILE); // qglColor(QColor(255, 239, 191)); glLineWidth(1.0); QLinearGradient linearGradient(0, 0, 100, 100); linearGradient.setColorAt(0.0, Qt::red); linearGradient.setColorAt(0.2, Qt::green); linearGradient.setColorAt(1.0, Qt::black); //renderArea->setBrush(linearGradient); //glColor3f(1,0,0);pow((f1[e]-f1[a]),2) QFile file("/home/41407/input1.txt"); if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) return; QTextStream in(&file); while (!in.atEnd()) { QString line = in.readLine(); if(k<=125) { str1= line.section(',', 1, 1); str2=line.section(',', 2, 2); str3=line.section(',', 3, 3); x=str1.toFloat(); y=str2.toFloat(); z=str3.toFloat(); f1[k]=x; f2[k]=y; f3[k]=z; /* glBegin(GL_TRIANGLES); // glColor3f(LUT[k][0],LUT[k][1],LUT[k][2]); //QColorAt();//setPointSize(size); glVertex3f(x,y,z); glEnd();*/ } else if(k>125) { element_node_no=0; qCount(line.begin(),line.end(),',',element_node_no); // printf("\n%d",element_node_no); str1= line.section(',', 1, 1); str2=line.section(',', 2, 2); str3=line.section(',', 3, 3); str4= line.section(',', 4, 4); str5=line.section(',', 5, 5); str6=line.section(',', 6, 6); str7= line.section(',', 7, 7); str8=line.section(',', 8, 8); a=str1.toInt(); b=str2.toInt(); c=str3.toInt(); d=str4.toInt(); e=str5.toInt(); f=str6.toInt(); g=str7.toInt(); h=str8.toInt(); glBegin(GL_POLYGON); glPolygonMode(GL_FRONT_AND_BACK,GL_FILL); //brush.setColor(Qt::black);//setColor(QColor::black()); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); // pmp.setBrush(gradient); glVertex3f(f1[a],f2[a] ,f3[a]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[b],f2[b] ,f3[b]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[c],f2[c] ,f3[c]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[d],f2[d] ,f3[d]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[a],f2[a] ,f3[a]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); //glEnd(); //glBegin(GL_LINE_LOOP); glVertex3f(f1[e],f2[e] ,f3[e]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[f],f2[f] ,f3[f]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[g],f2[g], f3[g]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[h],f2[h], f3[h]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[d],f2[d] ,f3[d]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[a],f2[a] ,f3[a]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glEnd(); glBegin(GL_POLYGON); //glVertex3f(f1[a],f2[a] ,f3[a]); glVertex3f(f1[e],f2[e] ,f3[e]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[h],f2[h], f3[h]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); //glVertex3f(f1[d],f2[d] ,f3[d]); glVertex3f(f1[g],f2[g], f3[g]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[c],f2[c] ,f3[c]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[f],f2[f] ,f3[f]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glVertex3f(f1[b],f2[b] ,f3[b]); glColor3f(LUT[k][0],LUT[k][1],LUT[k++][2]); glEnd(); /*length=sqrt(pow((f1[e]-f1[a]),2)+pow((f2[e]-f2[a]),2)+pow((f3[e]-f3[a]),2)); printf("\n%d",length);*/ } k++; } glEndList(); file.close(); k=1; QFile file1("/home/41407/op.txt"); if (!file1.open(QIODevice::ReadOnly | QIODevice::Text)) return; QTextStream in1(&file1); k=1; while (!in1.atEnd()) { QString line = in1.readLine(); // if(k<=125) { str1= line.section(' ', 1, 1); x=str1.toFloat(); str2=line.section(' ', 2, 2); y=str2.toFloat(); str3=line.section(' ', 3, 3); z=str3.toFloat(); displacement=sqrt(pow( (x-f1[k]),2)+pow((y-f2[k]),2)+pow((z-f3[k]),2)); //printf("\n %d : %d",k,displacement); glBegin(GL_POLYGON); //glColor3f(LUT[displacement][0],LUT[displacement][1],LUT[displacement][2]); glVertex3f(f1[k],f2[k],f3[k]); glEnd(); a1[k]=x+f1[k]; a2[k]=y+f2[k]; a3[k]=z+f3[k]; //printf("\nc: %f %f %f",x,y,z); //printf("\nf: %f %f %f",f1[k],f2[k],f3[k]); //printf("\na: %f %f %f",a1[k],a2[k],a3[k]); } k++; glEndList(); } } void final1::draw() { glPushAttrib(GL_ALL_ATTRIB_BITS); glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity(); GLfloat x = 3.0 * GLfloat(width()) / height(); glOrtho(-x, +x, -3.0, +3.0, 4.0, 15.0); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadIdentity(); glTranslatef(0.0, 0.0, -10.0); glScalef(scaling, scaling, scaling); glRotatef(rotationX, 1.0, 0.0, 0.0); glRotatef(rotationY, 0.0, 1.0, 0.0); glRotatef(rotationZ, 0.0, 0.0, 1.0); glEnable(GL_MULTISAMPLE); glCallList(glObject); glMatrixMode(GL_MODELVIEW); glPopMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); glPopAttrib(); } /*uint final1::colorAt(int x) { generateShade(); QPolygonF pts = m_hoverPoints->points(); for (int i=1; i < pts.size(); ++i) { if (pts.at(i-1).x() <= x && pts.at(i).x() >= x) { QLineF l(pts.at(i-1), pts.at(i)); l.setLength(l.length() * ((x - l.x1()) / l.dx())); return m_shade.pixel(qRound(qMin(l.x2(), (qreal(m_shade.width() - 1)))), qRound(qMin(l.y2(), qreal(m_shade.height() - 1)))); } } return 0;*/ //final1:: //} /*void final1::createGLObject() { makeCurrent(); //QPainter painter; QPixmap pm(20, 20); QPainter pmp(&pm); pmp.fillRect(0, 0, 10, 10, Qt::blue); pmp.fillRect(10, 10, 10, 10, Qt::lightGray); pmp.fillRect(0, 10, 10, 10, Qt::darkGray); pmp.fillRect(10, 0, 10, 10, Qt::darkGray); pmp.end(); QPalette pal = palette(); pal.setBrush(backgroundRole(), QBrush(pm)); //setAutoFillBackground(true); setPalette(pal); //GLfloat f1[150],f2[150],f3[150],a1[150],a2[150],a3[150]; int k=1,a,b,c,d,e,f,g,h; //int p=0; GLfloat x,y,z; int displacement; QString str1,str2,str3,str4,str5,str6,str7,str8; int red,green,blue,index=1; int LUT[8000][3]; for(red=0;red //glShadeModel(GL_LINE); glObject = glGenLists(1); glNewList(glObject, GL_COMPILE); //qglColor(QColor(120,255,210)); glLineWidth(1.0); //glColor3f(1,0,0); QFile file("/home/41407/input.txt"); if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) return; QTextStream in(&file); while (!in.atEnd()) { //glColor3f(LUT[k][0],LUT[k][1],LUT[k][2]); QString line = in.readLine(); if(k<=125) { //printf("\nline :%c",line); str1= line.section(',', 1, 1); str2=line.section(',', 2, 2); str3=line.section(',', 3, 3); x=str1.toFloat(); y=str2.toFloat(); z=str3.toFloat(); f1[k]=x; f2[k]=y; f3[k]=z; //printf("\nf: %f %f %f",f1[k],f2[k],f3[k]); } else if(k125) //for(p=0;p<6;p++) { //glColor3f(LUT[k][0],LUT[k][1],LUT[k][2]); update(); str1= line.section(',', 1, 1); str2=line.section(',', 2, 2); str3=line.section(',', 3, 3); str4= line.section(',', 4, 4); str5=line.section(',', 5, 5); str6=line.section(',', 6, 6); str7= line.section(',', 7, 7); str8=line.section(',', 8, 8); a=str1.toInt(); b=str2.toInt(); c=str3.toInt(); d=str4.toInt(); e=str5.toInt(); f=str6.toInt(); g=str7.toInt(); h=str8.toInt(); //for (p = 0; p < 6; p++) { // glBegin(GL_LINE_WIDTH); //glColor3f(LUT[126][0],LUT[126][1],LUT[126][2]); //update(); //glNormal3fv(&n[p][0]); //glVertex3f(f1[i],f2[i],f3[i]); glVertex3fv(&v[faces[i][1]][0]); glVertex3fv(&v[faces[i][2]][0]); glVertex3fv(&v[faces[i][3]][0]); //glEnd(); //} glBegin(GL_LINE_LOOP); //glColor3f(p*20,p*20,p); glColor3f(1,0,0); glVertex3f(f1[a],f2[a] ,f3[a]); //painter.fillRect(QRectF(f1[a],f2[a] ,f3[a], 2), Qt::magenta); glVertex3f(f1[b],f2[b] ,f3[b]); glVertex3f(f1[c],f2[c] ,f3[c]); glVertex3f(f1[d],f2[d] ,f3[d]); glVertex3f(f1[a],f2[a] ,f3[a]); glVertex3f(f1[e],f2[e] ,f3[e]); glVertex3f(f1[f],f2[f] ,f3[f]); glVertex3f(f1[g],f2[g], f3[g]); glVertex3f(f1[h],f2[h], f3[h]); glVertex3f(f1[d],f2[d] ,f3[d]); glVertex3f(f1[a],f2[a] ,f3[a]); //glColor3f(1,0,0); //QLinearGradient ( f1[a], f2[a], f1[b], f2[b] ); glEnd(); glBegin(GL_LINES); //glNormal3fv(&n[p][0]); //glColor3f(LUT[k][0],LUT[k][1],LUT[k][2]); glVertex3f(f1[e],f2[e] ,f3[e]); glVertex3f(f1[h],f2[h], f3[h]); glVertex3f(f1[g],f2[g], f3[g]); glVertex3f(f1[c],f2[c] ,f3[c]); glVertex3f(f1[f],f2[f] ,f3[f]); glVertex3f(f1[b],f2[b] ,f3[b]); glEnd(); } } k++; } glEndList(); qglColor(QColor(239, 255, 191)); glLineWidth(1.0); glColor3f(0,1,0); k=1; QFile file1("/home/41407/op.txt"); if (!file1.open(QIODevice::ReadOnly | QIODevice::Text)) return; QTextStream in1(&file1); k=1; while (!in1.atEnd()) { QString line = in1.readLine(); // if(k<=125) { str1= line.section(' ', 1, 1); x=str1.toFloat(); str2=line.section(' ', 2, 2); y=str2.toFloat(); str3=line.section(' ', 3, 3); z=str3.toFloat(); displacement=sqrt(pow( (x-f1[k]),2)+pow((y-f2[k]),2)+pow((z-f3[k]),2)); printf("\n %d : %d",k,displacement); glBegin(GL_POINT); glColor3f(LUT[displacement][0],LUT[displacement][1],LUT[displacement][2]); glVertex3f(x,y,z); glLoadIdentity(); glEnd(); a1[k]=x+f1[k]; a2[k]=y+f2[k]; a3[k]=z+f3[k]; //printf("\nc: %f %f %f",x,y,z); //printf("\nf: %f %f %f",f1[k],f2[k],f3[k]); //printf("\na: %f %f %f",a1[k],a2[k],a3[k]); } k++; glEndList(); } }*/ /*void final1::draw() { glPushAttrib(GL_ALL_ATTRIB_BITS); glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity(); GLfloat x = 3.0 * GLfloat(width()) / height(); glOrtho(-x, +x, -3.0, +3.0, 4.0, 15.0); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadIdentity(); glTranslatef(0.0, 0.0, -10.0); glScalef(scaling, scaling, scaling); glRotatef(rotationX, 1.0, 0.0, 0.0); glRotatef(rotationY, 0.0, 1.0, 0.0); glRotatef(rotationZ, 0.0, 0.0, 1.0); glEnable(GL_MULTISAMPLE); glCallList(glObject); glMatrixMode(GL_MODELVIEW); glPopMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); glPopAttrib(); }*/ I need to change the color of a portion of beam where pressure is applied.But I am not able to color the front end back phase.

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  • Error loading my managedObjectModel

    - by niklassaers
    Hi guys, When I call [myAppDelegate managedObjectModel], in the retain line below, my application will crash (iPhone SDK v3.1.3): - (NSManagedObjectModel *)managedObjectModel { if (managedObjectModel != nil) { return managedObjectModel; } managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles:nil] retain]; return managedObjectModel; } Here is my crash trace #0 0x905c44e6 in objc_exception_throw #1 0x01e78c3b in +[NSException raise:format:arguments:] #2 0x01e78b9a in +[NSException raise:format:] #3 0x000af99b in _NSArrayRaiseInsertNilException #4 0x0001c360 in -[NSCFArray insertObject:atIndex:] #5 0x0001c274 in -[NSCFArray addObject:] #6 0x01c16a7e in +[NSManagedObjectModel mergedModelFromBundles:] #7 0x00002432 in -[myAppDelegate managedObjectModel] at myAppDelegate.m:102 What is going on here? This is template code that I haven't seen fail before. Cheers Nik

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  • ASP.net MVC [HandleError] not catching exceptions.

    - by Eric
    In two different application, one a custom the other the sample MVC application you get with a new VS2008 MVC project, [HandleError] is not catching exceptions. In the sample application I have: [HandleError] public class HomeController : Controller { public ActionResult Index() { ViewData["Message"] = "Welcome to ASP.NET MVC!"; throw new Exception(); return View(); } public ActionResult About() { return View(); } } which is just the default controller with an exception being thrown for testing. But it doesn't work. Instead of going to the default error.aspx page it shows the debug information in the browser. The problem first cropped up in a custom application I'm working on which led me to test it with the sample application. Thinking it had something to do with changes I made in the custom application, I left the sample application completely unchanged with the exception (yuck) of the throw in the index method. I'm stumped. What am I missing?

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  • NAudio: How can I get a event that tells me that the MP3 file reached the end?

    - by Rookian
    I tried to use this: private void CreateDevice() { _playbackDevice = new WaveOut(); _playbackDevice.PlaybackStopped += PlaybackDevicePlaybackStopped; } void PlaybackDevicePlaybackStopped(object sender, EventArgs e) { if (OnPlaybackStopped != null) { OnPlaybackStopped(this, e); } } But it never invoked. Then I tried to use the PlaybackState: public PlaybackState PlaybackState { get { if (_playbackDevice == null) return default(PlaybackState); return _playbackDevice.PlaybackState; } } But when the song ends it does not change to "stopped". But when I call Stopped it changes correctly. Can someone help me?

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  • Searching for Records

    - by 47
    I've come up with a simple search view to search for records in my app. The user just enters all parameters in the search box then all this is matched against the database, then results are returned. One of these fields is the phone number....now in the database it's stored in the format XXX-XXX-XXX. A search, for example, for "765-4321" pull up only "416-765-4321...however I want it to return both "416-765-4321" and "4167654321" My view is as below: def search(request, page_by=None): query = request.GET.get('q', '') if query: term_list = query.split(' ') q = Q(first_name__icontains=term_list[0]) | Q(last_name__icontains=term_list[0]) | Q(email_address__icontains=term_list[0]) | Q(phone_number__icontains=term_list[0]) for term in term_list[1:]: q.add((Q(first_name__icontains=term) | Q(last_name__icontains=term) | Q(email_address__icontains=term) | Q(phone_number__icontains=term)), q.connector) results = Customer.objects.filter(q).distinct() all = results.count() else: results = [] if 'page_by' in request.GET: page_by = int(request.REQUEST['page_by']) else: page_by = 50 return render_to_response('customers/customers-all.html', locals(), context_instance=RequestContext(request))

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  • How to determine the path of the current web site

    - by Velika2
    I wanted to create a function which would return the path of the current web site. This is what I thought was working while running in the IDE: Public Shared Function WebsiteAbsoluteBaseUrl() As String Dim RequestObject As System.Web.HttpRequest = HttpContext.Current.Request Return "http://" & RequestObject.Url.Host & ":" & _ RequestObject.Url.Port & "/" & _ RequestObject.Url.Segments(1) End Function Does this seem like it should work? Is there a more straight forward way?

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  • Setting column length of a Long value with JPA annotations

    - by Gearóid
    Hi, I'm performing a little database optimisation at the moment and would like to set the column lengths in my table through JPA. So far I have no problem setting the String (varchar) lengths using JPA as follows: @Column(unique=true, nullable=false, length=99) public String getEmail() { return email; } However, when I want to do the same for a column which is of type Long (bigint), it doesn't work. For example, if I write: @Id @Column(length=7) @GeneratedValue(strategy = GenerationType.AUTO) public Long getId() { return id; } The column size is still set as the default of 20. Are we able to set these lengths in JPA or am I barking up the wrong tree? Thanks, Gearoid.

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  • What is this technique called in Java?

    - by ShaChris23
    I'm a C++ programmer, and I was reading this site when I came across the example below. What is this technique called in Java? How is it useful? class Application { ... public void run() { View v = createView(); v.display(); ... protected View createView() { return new View(); } ... } class ApplicationTest extends TestCase { MockView mockView = new MockView(); public void testApplication { Application a = new Application() { <--- protected View createView() { <--- return mockView; <--- whao, what is this? } <--- }; <--- a.run(); mockView.validate(); } private class MockView extends View { boolean isDisplayed = false; public void display() { isDisplayed = true; } public void validate() { assertTrue(isDisplayed); } } }

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  • How to clear a bean field with Stripes.

    - by Davoink
    In a JSP I have the following field: <stripes:text name="email"/> This field is in my action bean(snippet): public class CreateClaim implements ActionBean { private String email; public void setEmail(String email) { this.email = email; } public String getEmail() { return email; } public Resolution alc(){ email = "poodle"; return new ForwardResolution("aForward.jsp"); } } In the alc() methos I am setting email to be null. But when the pages renders the value of the email field is exactly as it was entered originally. Is there a way of clearing this field once and event has triggered? Cheers Dave

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  • PHP convert decimal into fraction and back?

    - by John Isaacks
    I want the user to be able to type in a fraction like: 1/2 2 1/4 3 And convert it into its corresponding decimal, to be saved in MySQL, that way I can order by it and do other comparisons to it. But I need to be able to convert the decimal back to a fraction when showing to the user so basically i need a function that will convert fraction string to decimal: fraction_to_decimal("2 1/4");// return 2.25 and a function that can convert a decimal to a faction string: decimal_to_fraction(.5); // return "1/2" How can I do this? Thanks!

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  • C# -Closure -Clarification

    - by nettguy
    I am learning C#.Can I mean closure as a construct that can adopt the changes in the environment in which it is defined. Example : List<Person> gurus = new List<Person>() { new Person{id=1,Name="Jon Skeet"}, new Person{id=2,Name="Marc Gravell"}, new Person{id=3,Name="Lasse"} }; void FindPersonByID(int id) { gurus.FindAll(delegate(Person x) { return x.id == id; }); } The variable id is declared in the scope of FindPersonByID() but t we still can access the local variable id inside the anonymous function (i.e) delegate(Person x) { return x.id == id; } (1) Is my understanding of closure is correct ? (2) What are the aditional advantages can we get from closures?

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  • Display the form again ?

    - by noralain
    Hi all, I want to ask about the form in javascript .. I want to do a game that the user enter the correct word, then alert message will apeared for correct word.. When the user do the first word correctly, the program will display another word (to be corrected) .. but the problem which i faced that i can't make the form display again to continue play the game .. i used : var d = document.getElementById("form1"); d.style.visibility = "visible"; but it doesn't work !! This is my code: <title>Word Decoder</title> <script type="text/javascript"> function checkWord(word, score){ var ok = words[score].valueOf(); var ok1 = document.getElementById("wordid"); if(ok1.value == ok){ score ++; alert("Correct, your score is: " + score); var d = document.getElementById("form1"); d.style.visibility = "visible"; return false; } else { alert("Wrong Spelling"); return false; } } </script> </head> <body> <script type="text/javascript"> var words = new Array ("apple", "orange", "banana", "manago", "table"); var reWords = new Array ("alpep", "ergano", "aaabnn", "goamna", "lbeat"); var count = 0; var score = 0; "</br>"; </script> <form id="form1"> <br> <dir id="displayForm" style="position: relative; visibility: visible; display: block"> <h3><b> <script> document.write(reWords[score]);</script> </b></h3> <br> Enter the correct word: <input type="text" value="" id="wordid"/> <input type="submit" value="Check Answer ??" onclick="return checkWord(wordid, score);" /> </dir> </form> </body> Can help me to solve the problem? Again: I want the game will display a scrambled word and the user must unscrambled the word to move to the other word. The problem is i can't display the form again to make the user unscrambled the second, third ..etc words..

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  • Spring AOP pointcut that matches annotation on interface

    - by seanizer
    Hello, this is my first post here, so I apologize in advance for any stupidity on my side. I have a service class implemented in Java 6 / Spring 3 that needs an annotation to restrict access by role. I have defined an annotation called RequiredPermission that has as its value attribute one or more values from an enum called OperationType: public @interface RequiredPermission { /** * One or more {@link OperationType}s that map to the permissions required * to execute this method. * * @return */ OperationType[] value();} public enum OperationType { TYPE1, TYPE2; } package com.mycompany.myservice; public interface MyService{ @RequiredPermission(OperationType.TYPE1) void myMethod( MyParameterObject obj ); } package com.mycompany.myserviceimpl; public class MyServiceImpl implements MyService{ public myMethod( MyParameterObject obj ){ // do stuff here } } I also have the following aspect definition: /** * Security advice around methods that are annotated with * {@link RequiredPermission}. * * @param pjp * @param param * @param requiredPermission * @return * @throws Throwable */ @Around(value = "execution(public *" + " com.mycompany.myserviceimpl.*(..))" + " && args(param)" + // parameter object " && @annotation( requiredPermission )" // permission annotation , argNames = "param,requiredPermission") public Object processRequest(final ProceedingJoinPoint pjp, final MyParameterObject param, final RequiredPermission requiredPermission) throws Throwable { if(userService.userHasRoles(param.getUsername(),requiredPermission.values()){ return pjp.proceed(); }else{ throw new SorryButYouAreNotAllowedToDoThatException( param.getUsername(),requiredPermission.value()); } } The parameter object contains a user name and I want to look up the required role for the user before allowing access to the method. When I put the annotation on the method in MyServiceImpl, everything works just fine, the pointcut is matched and the aspect kicks in. However, I believe the annotation is part of the service contract and should be published with the interface in a separate API package. And obviously, I would not like to put the annotation on both service definition and implementation (DRY). I know there are cases in Spring AOP where aspects are triggered by annotations one interface methods (e.g. Transactional). Is there a special syntax here or is it just plain impossible out of the box. PS: I have not posted my spring config, as it seems to be working just fine. And no, those are neither my original class nor method names. Thanks in advance, Sean PPS: Actually, here is the relevant part of my spring config: <aop:aspectj-autoproxy proxy-target-class="false" /> <bean class="com.mycompany.aspect.MyAspect"> <property name="userService" ref="userService" /> </bean>

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  • Listview selects mutliple items when clicked

    - by xlph
    I'm trying to make a task manager, and I only have one problem. I have a listview that gets inflated. All the elements in the listview are correct. The problem is that when I select an item, the listview will select another item away. I've heard listviews repopulate the list as it scrolls down to save memory. I think this may be some sort of problem. Here is a picture of the problem. If i had more apps loaded, then it would continue to select multiple at once. Here is the code of my adapter and activity and XML associated public class TaskAdapter extends BaseAdapter{ private Context mContext; private List<TaskInfo> mListAppInfo; private PackageManager mPack; public TaskAdapter(Context c, List<TaskInfo> list, PackageManager pack) { mContext = c; mListAppInfo = list; mPack = pack; } @Override public int getCount() { return mListAppInfo.size(); } @Override public Object getItem(int position) { return mListAppInfo.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) { TaskInfo entry = mListAppInfo.get(position); if (convertView == null) { LayoutInflater inflater = LayoutInflater.from(mContext); //System.out.println("Setting LayoutInflater in TaskAdapter " +mContext +" " +R.layout.taskinfo +" " +R.id.tmbox); convertView = inflater.inflate(R.layout.taskinfo,null); } ImageView ivIcon = (ImageView)convertView.findViewById(R.id.tmImage); ivIcon.setImageDrawable(entry.getIcon()); TextView tvName = (TextView)convertView.findViewById(R.id.tmbox); tvName.setText(entry.getName()); convertView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { final CheckBox checkBox = (CheckBox)v.findViewById(R.id.tmbox); if(v.isSelected()) { System.out.println("Listview not selected "); //CK.get(arg2).setChecked(false); checkBox.setChecked(false); v.setSelected(false); } else { System.out.println("Listview selected "); //CK.get(arg2).setChecked(true); checkBox.setChecked(true); v.setSelected(true); } } }); return convertView; public class TaskManager extends Activity implements Runnable { private ProgressDialog pd; private TextView ram; private String s; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.taskpage); setTitleColor(Color.YELLOW); Thread thread = new Thread(this); thread.start(); } @Override public void run() { //System.out.println("In Taskmanager Run() Thread"); final PackageManager pm = getPackageManager(); final ListView box = (ListView) findViewById(R.id.cBoxSpace); final List<TaskInfo> CK = populate(box, pm); runOnUiThread(new Runnable() { @Override public void run() { ram.setText(s); box.setAdapter(new TaskAdapter(TaskManager.this, CK, pm)); //System.out.println("In Taskmanager runnable Run()"); endChecked(CK); } }); handler.sendEmptyMessage(0); } Taskinfo.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center_horizontal"> <ImageView android:id="@+id/tmImage" android:layout_width="48dp" android:layout_height="48dp" android:scaleType="centerCrop" android:adjustViewBounds="false" android:focusable="false" /> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/tmbox" android:lines="2"/> </LinearLayout> Taskpage.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <ListView android:id="@+id/cBoxSpace" android:layout_width="wrap_content" android:layout_height="400dp" android:orientation="vertical"/> <TextView android:id="@+id/RAM" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="18sp" /> <Button android:id="@+id/endButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="End Selected Tasks" /> </LinearLayout> Any ideas for what reason mutliple items are selected with a single click would be GREATLY appreciated. I've been messing around with different implementations and listeners and listadapters but to no avail.

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  • On WindowsMobile, how can i tell what other processes are reserving shared memory space?

    - by glutz78
    On WindowMobile 6.1, I am using VirtualAlloc to reserve 2MB chunks, which will return me an address from the large shared memory area so allocations do not count against my per process virtual space. (doc here: http://msdn.microsoft.com/en-us/library/aa908768.aspx) However, on some devices i notice that I am not able to reserve memory after a certain point. VirtualAlloc will return NULL (getlasterror() says out of memory). The only explanation for this that I see is that another process has already reserved a bunch of memory and my process is therefore unable to. Any idea where I can find a tool to show me the shared mem region of a WM device? Thanks.

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  • How do I use namespaces in Backbone with RequireJs

    - by dev.pus
    I am unsure how I use namespaces in an modularized (RequireJs) Backbone environment. I have thought a bit how it could look like but am totally unsure if this is the right way. app.js (getting executed by main.js) define('App', ['underscore', 'backbone', 'Router'], function( _, Backbone, Router){ function initialize(){ var app = {}; // app is the global namespace variable, every module exists in app app.router = new Router(); // router gets registered Backbone.history.start(); } return { initialize: initialize } }); messages.js define('MessageModel', ['underscore', 'backbone', 'App'], function(_, Backbone, App){ App.Message.Model; // registering the Message namespace with the Model class App.Message.Model = Backbone.Model.extend({ // the backbone stuff }); return App; }); Is this the right approach or am I fully on the wrong way (if yes please correct me!)

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  • python socket.recv/sendall call blocking

    - by fsm
    Hi everyone. This post is incorrectly tagged 'send' since I cannot create new tags. I have a very basic question about this simple echo server. Here are some code snippets. client while True: data = raw_input("Enter data: ") mySock.sendall(data) echoedData = mySock.recv(1024) if not echoedData: break print echoedData server while True: print "Waiting for connection" (clientSock, address) = serverSock.accept() print "Entering read loop" while True: print "Waiting for data" data = clientSock.recv(1024) if not data: break clientSock.send(data) clientSock.close() Now this works alright, except when the client sends an empty string (by hitting the return key in response to "enter data: "), in which case I see some deadlock-ish behavior. Now, what exactly happens when the user presses return on the client side? I can only imagine that the sendall call blocks waiting for some data to be added to the send buffer, causing the recv call to block in turn. What's going on here? Thanks for reading!

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  • A UnicodeDecodeError that occurs with json in python on Windows, but not Mac.

    - by ventolin
    On windows, I have the following problem: >>> string = "Don´t Forget To Breathe" >>> import json,os,codecs >>> f = codecs.open("C:\\temp.txt","w","UTF-8") >>> json.dump(string,f) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python26\lib\json\__init__.py", line 180, in dump for chunk in iterable: File "C:\Python26\lib\json\encoder.py", line 294, in _iterencode yield encoder(o) UnicodeDecodeError: 'utf8' codec can't decode bytes in position 3-5: invalid data (Notice the non-ascii apostrophe in the string.) However, my friend, on his mac (also using python2.6), can run through this like a breeze: > string = "Don´t Forget To Breathe" > import json,os,codecs > f = codecs.open("/tmp/temp.txt","w","UTF-8") > json.dump(string,f) > f.close(); open('/tmp/temp.txt').read() '"Don\\u00b4t Forget To Breathe"' Why is this? I've also tried using UTF-16 and UTF-32 with json and codecs, but to no avail.

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  • Problems using wxWidgets (wxMSW) within multiple DLL instances

    Preface I'm developing VST-plugins which are DLL-based software modules and loaded by VST-supporting host applications. To open a VST-plugin the host applications loads the VST-DLL and calls an appropriate function of the plugin while providing a native window handle, which the plugin can use to draw it's GUI. I managed to port my original VSTGUI code to the wxWidgets-Framework and now all my plugins run under wxMSW and wxMac but I still have problems under wxMSW to find a correct way to open and close the plugins and I am not sure if this is a wxMSW-only issue. Problem If I use any VST-host application I can open and close multiple instances of one of my VST-plugins without any problems. As soon as I open another of my VST-plugins besides my first VST-plugin and then close all instances of my first VST-plugin the application crashes after a short amount of time within the wxEventHandlerr::ProcessEvent function telling me that the wxTheApp object isn't valid any longer during execution of wxTheApp-FilterEvent (see below). So it seems to be that the wxTheApp objects was deleted after closing all instances of the first plugin and is no longer available for the second plugin. bool wxEvtHandler::ProcessEvent(wxEvent& event) { // allow the application to hook into event processing if ( wxTheApp ) { int rc = wxTheApp->FilterEvent(event); if ( rc != -1 ) { wxASSERT_MSG( rc == 1 || rc == 0, _T("unexpected wxApp::FilterEvent return value") ); return rc != 0; } //else: proceed normally } .... } Preconditions 1.) All my VST-plugins a dynamically linked against the C-Runtime and wxWidgets libraries. With regard to the wxWidgets forum this seemed to be the best way to run multiple instances of the software side by side. 2.) The DllMain of each VST-Plugin is defined as follows: // WXW #include "wx/app.h" #include "wx/defs.h" #include "wx/gdicmn.h" #include "wx/image.h" #ifdef __WXMSW__ #include <windows.h> #include "wx/msw/winundef.h" BOOL APIENTRY DllMain ( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved ) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: { wxInitialize(); ::wxInitAllImageHandlers(); break; } case DLL_THREAD_ATTACH: break; case DLL_THREAD_DETACH: break; case DLL_PROCESS_DETACH: wxUninitialize(); break; } return TRUE; } #endif // __WXMSW__ class Application : public wxApp {}; IMPLEMENT_APP_NO_MAIN(Application) Question How can I prevent this behavior respectively how can I properly handle the wxTheApp object if I have multiple instances of different VST-plugins (DLL-modules), which are dynamically linked against the C-Runtime and wxWidgets libraries? Best reagards, Steffen

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  • WPF, getting two way binding to work on custom control

    - by e28Makaveli
    Two way binding does not work on my custom control with the following internals: public partial class ColorInputControl { public ColorInputControl() { InitializeComponent(); colorPicker.AddHandler(ColorPicker.SelectedColorChangedEvent, new RoutedPropertyChangedEventHandler( SelectedColorChanged));; colorPicker.AddHandler(ColorPicker.CancelEvent, new RoutedPropertyChangedEventHandler(OnCancel)); } public static readonly DependencyProperty SelectedColorProperty = DependencyProperty.Register ("SelectedColor", typeof(Color), typeof(ColorInputControl), new PropertyMetadata(Colors.Transparent, null)); public Color SelectedColor { get { return (Color)GetValue(SelectedColorProperty); //return colorPicker.SelectedColor; } set { SetValue(SelectedColorProperty, value); colorPicker.SelectedColor = value; } } private void SelectedColorChanged(object sender, RoutedPropertyChangedEventArgs<Color> e) { SetValue(SelectedColorProperty, colorPicker.SelectedColor); } } SelectedColor is being bound to a property that fires INotifyPropertyChanged event control when it changes. However, I cannot get two way binding to work. Changes from the UI are pesisted to the data source. However, changes originating from the data source are not reflected on the UI. What did I miss? TIA.

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  • Python: Indexing list for element in nested list

    - by aquateenfan
    I know what I'm looking for. I want python to tell me which list it's in. Here's some pseudocode: item = "a" nested_list = [["a", "b"], ["c", "d"]] list.index(item) #obviously this doesn't work here I would want python to return 0 (because "a" is an element in the first sub-list in the bigger list). I don't care which sub-element it is. I don't care if there are duplicates, e.g., ["a", "b", "a"] should return the same thing as the above example. Sorry if this is a dumb question. I'm new to programming.

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  • VS C++ throwing divide by zero exception after a specific check

    - by Dr. Monkey
    In the following C++ code, it should be impossible for ain integer division by zero to occur: // gradedUnits and totalGrades are both of type int if (gradedUnits == 0) { return 0; } else { return totalGrades/gradedUnits; //call stack points to this line } however Visual Studio is popping up this error: Unhandled exception at 0x001712c0 in DSA_asgn1.exe: 0xC0000094: Integer division by zero. And the stack trace points to the line indicated in the code. It seems like VS might just do this with any integer division, without checking whether a divide by zero is possible. Do I need to catch this exception even though the code should never be able to throw it? If so, what's the best way to go about this? This is for an assignment that specifies VS 2005/2008 with C++. I would prefer not to make things more complicated than I need to, but at the same time I like to do things properly where possible.

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  • how to upload the fie from user to server in asp.net mvc2

    - by Richa Media and services
    in my apps (dev in MVC2) user can upload his images to server. how i can set url routing who handle the image and upload it to a specific location currently i used it like a parameter ex;- routes.MapRoute("abcd2", "abcd/{id}/{param1}/{param2}/", new { controller = "abcd", action = "Index", id = 0, qxt = "" }, new { action = new IsIndexConstraint() }, new string[] { "myapps.Controllers" }); by this code param2 is work i used param1 for sending file to server but he not worked public ActionResult Index(HttpPostedFileBase param1 , string param2) { string str = "null"; if (param1 != null) { param1.SaveAs(@"C:\img\" + param1.FileName); str = "func is work"; //picture.SaveAs("C:\wherever\" + picture.FileName); return Content(str); } else { str = "func is not worked"; } return Content(str); } are anyone really want to help me. param2 is work but param1 is not handle by web apps. are you suggest me how to do it.

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