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  • WPF ItemsControl - how to know when the items finished loading, so that I can focus the first one?

    - by Tomáš Kafka
    Hi everyone, I have an ItemsControl in my View, that is bound to an ObservableCollection from ViewModel. The collection is filled, and afterwards an event from VM to view is raised (think search results and SearchFinished event). I would like to move keyboard focus to the first item in an ItemsControl, but when I do it in View's code-behind when handling SearchFinished, the items are not yet rendered (the collection is filled already, but wpf's rendering is asynchronous and didn't happen yet), so there is nothing to focus (Focus() needs to have the items' visual tree already constructed). I wanted to do (myItemsControl.ItemContainerGenerator.ContainerFromIndex(0) as UIElement).Focus();, but as the 0th item is not yet loaded, ContainerFromIndex(0) returns null. I tried delaying it with Dispatcher.BeginInvoke... with low priority, but that is dependent on exact timing and usually doesn't work. How can I wait until the first item in ItemsControl is Loaded?

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  • Active Directory List OU's

    - by Stephen Murby
    I have this code currently, string defaultNamingContext; DirectoryEntry rootDSE = new DirectoryEntry("LDAP://RootDSE"); defaultNamingContext = rootDSE.Properties["defaultNamingContext"].Value.ToString(); rootDSE = new DirectoryEntry("LDAP://" + defaultNamingContext); //DirectoryEntry domain = new DirectoryEntry((string)"LDAP://" + defaultNamingContext); DirectorySearcher ouSearch = new DirectorySearcher(rootDSE,"(objectCategory=Organizational-Unit)", null, SearchScope.Subtree); MessageBox.Show(rootDSE.Path.ToString()); try { SearchResultCollection collectedResult = ouSearch.FindAll(); foreach (SearchResult temp in collectedResult) { comboBox1.Items.Add(temp.Properties["name"][0]); DirectoryEntry ou = temp.GetDirectoryEntry(); } } When i use the debugger i can see that rootDSE.Path is infact pointing to the right place, in this case "DC=g-t-p,DC=Local" but the directory searcher doesn't find any results. Can anyone help?

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  • How to add/remove rows using SlickGrid

    - by lkahtz
    How to write such functions and bind them to two buttons like "add row" and "remove row": The now working example code only support adding new row by editing on the blank bottom line. <!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>SlickGrid example 3: Editing</title> <link rel="stylesheet" href="../slick.grid.css" type="text/css"/> <link rel="stylesheet" href="../css/smoothness/jquery-ui-1.8.16.custom.css" type="text/css"/> <link rel="stylesheet" href="examples.css" type="text/css"/> <style> .cell-title { font-weight: bold; } .cell-effort-driven { text-align: center; } </style> </head> <body> <div style="position:relative"> <div style="width:600px;"> <div id="myGrid" style="width:100%;height:500px;"></div> </div> <div class="options-panel"> <h2>Demonstrates:</h2> <ul> <li>adding basic keyboard navigation and editing</li> <li>custom editors and validators</li> <li>auto-edit settings</li> </ul> <h2>Options:</h2> <button onclick="grid.setOptions({autoEdit:true})">Auto-edit ON</button> &nbsp; <button onclick="grid.setOptions({autoEdit:false})">Auto-edit OFF</button> </div> </div> <script src="../lib/firebugx.js"></script> <script src="../lib/jquery-1.7.min.js"></script> <script src="../lib/jquery-ui-1.8.16.custom.min.js"></script> <script src="../lib/jquery.event.drag-2.0.min.js"></script> <script src="../slick.core.js"></script> <script src="../plugins/slick.cellrangedecorator.js"></script> <script src="../plugins/slick.cellrangeselector.js"></script> <script src="../plugins/slick.cellselectionmodel.js"></script> <script src="../slick.formatters.js"></script> <script src="../slick.editors.js"></script> <script src="../slick.grid.js"></script> <script> function requiredFieldValidator(value) { if (value == null || value == undefined || !value.length) { return {valid: false, msg: "This is a required field"}; } else { return {valid: true, msg: null}; } } var grid; var data = []; var columns = [ {id: "title", name: "Title", field: "title", width: 120, cssClass: "cell-title", editor: Slick.Editors.Text, validator: requiredFieldValidator}, {id: "desc", name: "Description", field: "description", width: 100, editor: Slick.Editors.LongText}, {id: "duration", name: "Duration", field: "duration", editor: Slick.Editors.Text}, {id: "%", name: "% Complete", field: "percentComplete", width: 80, resizable: false, formatter: Slick.Formatters.PercentCompleteBar, editor: Slick.Editors.PercentComplete}, {id: "start", name: "Start", field: "start", minWidth: 60, editor: Slick.Editors.Date}, {id: "finish", name: "Finish", field: "finish", minWidth: 60, editor: Slick.Editors.Date}, {id: "effort-driven", name: "Effort Driven", width: 80, minWidth: 20, maxWidth: 80, cssClass: "cell-effort-driven", field: "effortDriven", formatter: Slick.Formatters.Checkmark, editor: Slick.Editors.Checkbox} ]; var options = { editable: true, enableAddRow: true, enableCellNavigation: true, asyncEditorLoading: false, autoEdit: false }; $(function () { for (var i = 0; i < 500; i++) { var d = (data[i] = {}); d["title"] = "Task " + i; d["description"] = "This is a sample task description.\n It can be multiline"; d["duration"] = "5 days"; d["percentComplete"] = Math.round(Math.random() * 100); d["start"] = "01/01/2009"; d["finish"] = "01/05/2009"; d["effortDriven"] = (i % 5 == 0); } grid = new Slick.Grid("#myGrid", data, columns, options); grid.setSelectionModel(new Slick.CellSelectionModel()); grid.onAddNewRow.subscribe(function (e, args) { var item = args.item; grid.invalidateRow(data.length); data.push(item); grid.updateRowCount(); grid.render(); }); }) </script> </body> </html>

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  • using sqlite3 with lua

    - by mr calendar
    I'm trying to use sqlite3 with lua (am already using c++, but I'm a n00b with lua- I read this) but I'm getting the following when trying to build the library or whatever: C:\lib\lsqlite3-7>mingw32-make process_begin: CreateProcess(NULL, pkg-config --version, ...) failed. makefile:53: *** windows32. Stop. I'm not at all surprised at a makefile failing but I can't do them (is it spaces or tabs? where is it they have to go?), I would have thought there was a binary for windows? Any simple answers appreciated. I haven't got the time to learn make or install cygwin or whatever.

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  • How to make Requests HttpOnly in strus1.1 [on hold]

    - by WSDL
    I am using struts1.2 with jboss4 sever.I have to make my requests HttpOnly.How do I make this with jobss4 and struts1.2.Please Help me .It is urgent private void validateToken(HttpServletRequest request, HttpServletResponse response) { HttpSession session = request.getSession(true); String token = (String)session.getAttribute(TOKEN_KEY); if (token == null) { token = getRandomString(); session.setAttribute(TOKEN_KEY, token); // System.out.println("Executing the Filter............XSS1"); response.addHeader("Set-Cookie", "httpOnly"); } } private String getRandomString() { return String.valueOf(System.currentTimeMillis()); }

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  • T-SQL out of order insert

    - by tearman
    Basically I have a User-Defined Table Type (for use as a table-valued variable) which I'm referencing in a stored procedure that effectively just calls two other stored procedures, then inserts those values into the table type. Id est INSERT INTO @tableValuedVariable (var1, var2, var3, var4, var5) EXEC [dbo].StoredProcedure1; INSERT INTO @tableValuedVariable (var1, var2, var5) EXEC [dbo].StoredProcedure2; You can probably already tell what I'm going to ask. Basically StoredProcedure2 only returns a few of the values the table is set to hold, and I'd like those other variables to just be null (as defined as default). Only SQL is complaining that I'm not specifying all the variables available to that table. The return datasets can be quite sizable so I'd like to avoid loops and such for obvious reasons. Thanks for any help.

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  • pasteHTML removes markup

    - by ullmark
    I am writing a plugin to an old IE-only WYSIWYG-editor which resides in an old CMS. I've created a plugin that opens an popup where the user kan enter the url of an youtube clip. The popup then creates the corrent <object..><param..> markup for the embed and uses Internet Explorers pasteHTML function; var range = plugin.editorDocument.selection.createRange(); var embedHtml = OpenDialog(dialogUrl, null, 400, 200); if (!embedHtml) { return; } range.pasteHTML(embedHtml); I know it's missing a bit of information about some of the variables but you get the picture. The problem is that the <param>-tags gets removed when i run the pasteHTML. I wonder if anyone have an idea of fixing this, and letting me keep my param-tags

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  • Exporting Excel to sql server Temporary table.

    - by Renju
    I need to take all the values in an excel file to a temporary/physical table in SQL Server 2005. I don't need the Import export method. I tried the following linked server method: SELECT * INTO db1.dbo.table1 FROM OPENROWSET('Microsoft.ACE.OLEDB.12.0', 'Driver={Microsoft Excel Driver (*.xls)};DBQ=c:\renju.xls', 'SELECT * FROM [sheet1$]') But it is returing an error as: OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)" returned message "Could not find installable ISAM.". I'm using Excel 2003, and I've already added the linked server for "Microsoft.Jet.OLEDB.4.0."

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  • reading excell file in vb.net

    - by Mark
    can anyone help me on how to know EOF of excel using vb.net? i have this code but it crash when i try delete the proceeding rows from row 6 to downward. my problem is, my code was still reading a null values of rows that i deleted in excel.. this is my code: Dim xlsConn As New OleDbConnection Dim xlsAdapter As New OleDbDataAdapter Dim xlsDataSet As New DataSet xlsConn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & pathName & " ; Extended Properties=Excel 8.0") strSQL = "SELECT * FROM [Sheet1$]" xlsAdapter.SelectCommand = New OleDbCommand(strSQL, xlsConn) xlsDataSet.Clear() xlsAdapter.Fill(xlsDataSet) ListView1.Items.Clear() Dim listItem As ListViewItem For ctr As Integer = 0 To xlsDataSet.Tables(0).Rows.Count - 1 listItem = ListView1.Items.Add(xlsDataSet.Tables(0).Rows(ctr).Item("EmpNo").ToString) listItem.SubItems.Add(xlsDataSet.Tables(0).Rows(ctr).Item("EmpName").ToString) Next Can anyone help me to fix this bugs!

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  • Uploadify uploadSettings with scripData does not work

    - by kubilayeksioglu
    Hi everyone, I am sending a file to my Java Servlet via jQuery Uploadify, there are no problems while sending the actual file. But when I try to send some scriptData with file along, to process on Servlet it just does not send anything. Here is the JS code: $("button").click(function(){ $("#uploadify").uploadifySettings('scriptData', {'length':'0.2'}); $('#uploadify').uploadifyUpload(); }); $('#uploadify').uploadify({ 'uploader': 'assets/uploadify/uploadify.swf', 'script': 'upload', 'folder': '/uploads' }); And here is the Servlet code on the server side: out.println(res.getParameter("length")); Only output I get is null, while expecting "0.2". I just cannot get what's wrong and any kind of help will be appreciated. Thanks in advance.

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  • Bug when adding a sprite to 1 <s:State>

    - by lostincode
    I'm working within a skin for a button that has some <s:State> normal over In the tag, I'm drawing a circle private var theshape:Sprite; private function drawShape():void { theshape = new Sprite(); theshape.graphics.beginFill(0x666666); theshape.graphics.drawCircle(3,5,10); theshape.graphics.endFill(); //i then add it to a Spite Visual Element that's defined in mxml canv.addChild(theshape); } This works fine, until I try to control under which states that canv SpriteVisualElement appears. If I just add an includeIn like this <s:SpriteVisualElement id="canv" includeIn="over" /> I get a run-time error TypeError: Error #1009: Cannot access a property or method of a null object reference. Any ideas what the problem is, or a different way I can accomplish the same thing. What I need is to simply include the circle in the button when it's in the hover state.

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  • Java HTTP Client Request with defined timeout

    - by Maxim Veksler
    Hello, I would like to make BIT (Built in tests) to a number of server in my cloud. I need the request to fail on large timeout. How should I do this with java? Trying something like the below does not seem to work. public class TestNodeAliveness { public static NodeStatus nodeBIT(String elasticIP) throws ClientProtocolException, IOException { HttpClient client = new DefaultHttpClient(); client.getParams().setIntParameter("http.connection.timeout", 1); HttpUriRequest request = new HttpGet("http://192.168.20.43"); HttpResponse response = client.execute(request); System.out.println(response.toString()); return null; } public static void main(String[] args) throws ClientProtocolException, IOException { nodeBIT(""); } } -- EDIT: Clarify what library is being used -- I'm using httpclient from apache, here is the relevant pom.xml section org.apache.httpcomponents httpclient 4.0.1 jar

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  • Is it safe to convert a mysqlpp::sql_blob to a std::string?

    - by Runcible
    I'm grabbing some binary data out of my MySQL database. It comes out as a mysqlpp::sql_blob type. It just so happens that this BLOB is a serialized Google Protobuf. I need to de-serialize it so that I can access it normally. This gives a compile error, since ParseFromString() is not intended for mysqlpp:sql_blob types: protobuf.ParseFromString( record.data ); However, if I force the cast, it compiles OK: protobuf.ParseFromString( (std::string) record.data ); Is this safe? I'm particularly worried because of this snippet from the mysqlpp documentation: "Because C++ strings handle binary data just fine, you might think you can use std::string instead of sql_blob, but the current design of String converts to std::string via a C string. As a result, the BLOB data is truncated at the first embedded null character during population of the SSQLS. There’s no way to fix that without completely redesigning either String or the SSQLS mechanism." Thanks for your assistance!

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  • Inserting nil Values into Sqlite Database?

    - by Chris
    I am working on an iPhone App where I am pulling data from an XML file and inserting it into a sqlite database located in the App. I am able to successfully do this process, but it appears that if I try to sqlite3_bind_text with a NSString that has a value of "nil", the App quickly dies. This is an example of code that fails: (modified for this example) // idvar = 1 // valuevar = nil const char *sqlStatement = "insert into mytable (id, value) VALUES(?, ?)"; sqlite3_stmt *compiledStatement = nil; sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL); sqlite3_bind_int(compiledStatement, 1, [idvar intValue]);; sqlite3_bind_text(compiledStatement, 2, [valuevar UTF8String], -1, SQLITE_TRANSIENT);

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  • GAE/J: unable to register a custom ELResolver

    - by dfa
    I need to register a custom ELResolver for a Google App Engine project. Since it must be registered before any request is received, as specified by the Javadoc: It is illegal to register an ELResolver after the application has received any request from the client. If an attempt is made to register an ELResolver after that time, an IllegalStateException is thrown. I'm using a ServletContextListener: public class RegisterCustomELResolver implements ServletContextListener { @Override public void contextInitialized(ServletContextEvent sce) { ServletContext context = sce.getServletContext(); JspApplicationContext jspContext = JspFactory.getDefaultFactory().getJspApplicationContext(context); jspContext.addELResolver(new MyELResolver()); } ... } The problem is that JspFactory.getDefaultFactory() returns always null. I've alreay filled a bug report. Any idea for a workaround?

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  • Attach fancybox/lightbox/idontknowbox function on an element

    - by tanathos
    I'm developing a jquery gallery, and I want to parametrize the highlighter function to support any kind of lightboxes (fancybox for example). In my defaults I did something like: $.fn.mygallery.defaults = { functionHighlighter: null } so in the code, creating the item, I'll check this property, and if it's setted to a function, I want to call it on the element: if ((typeof opt.functionHighlighter) === "function") { opt.functionHighlighter.call(link); } where link is the anchor element containing the miniature image, with href setted to the original image. In my idea, when the plugin is called, I set the function with: $("#gallery").mygallery({ functionHighlighter: $.fancybox }); but the "call" on the functionHighlighter executes directly the fancybox, that returns an empty area. What I want to emulate is the execution of link.fancybox(); that correctly builds the plugin on link. Any ideas?

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  • Why is my image being displayed larger?

    - by bsh152s
    I'm trying to display an image on a splash screen and it's being stretched upon display. The image I'm trying to display is a simple bmp file. Any ideas why? In SplashWindow.xaml: <Window ... SizeToContent="WidthAndHeight"> <Grid> ... <Image Grid.Row="0" Source="{Binding SplashImage}"></Image> </Grid> </Window> In SplashViewModel.cs public ImageSource SplashImage { get { return ImageUtilities.GetImageSource(_splashImageFilenameString); } } From ImageUtilities.cs public static ImageSource GetImageSource(string imageFilename) { BitmapFrame bitmapFrame = null; if(!string.IsNullOrEmpty(imageFilename)) { if(File.Exists(imageFilename)) { bitmapFrame = BitmapFrame.Create(new Uri(imageFilename)); } else { Debug.Assert(false, "File " + imageFilename + " does not exist."); } } return bitmapFrame; }

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  • Error while applying overlay on a location on a Google map in Android

    - by Hiccup
    This is my Activity for getting Location: public class LocationActivity extends MapActivity{ Bundle bundle = new Bundle(); MapView mapView; MapController mc; GeoPoint p; ArrayList <String> address = new ArrayList<String>(); List<Address> addresses; private LocationManager locationManager; double lat, lng; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.map); mapView = (MapView) findViewById(R.id.mapView1); mapView.displayZoomControls(true); mc = mapView.getController(); LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE); Criteria criteria = new Criteria(); // criteria.setAccuracy(Criteria.ACCURACY_FINE); criteria.setAltitudeRequired(false); criteria.setBearingRequired(false); criteria.setCostAllowed(true); String strLocationProvider = lm.getBestProvider(criteria, true); //Location location = lm.getLastKnownLocation(strLocationProvider); Location location = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); lat = (double) location.getLatitude(); lng = (double) location.getLongitude(); p = new GeoPoint( (int) (lat * 1E6), (int) (lng * 1E6)); mc.animateTo(p); mc.setZoom(17); MapOverlay mapOverlay = new MapOverlay(); List<Overlay> listOfOverlays = mapView.getOverlays(); listOfOverlays.clear(); listOfOverlays.add(mapOverlay); Geocoder gcd = new Geocoder(this, Locale.getDefault()); try { addresses = gcd.getFromLocation(lat,lng,1); if (addresses.size() > 0 && addresses != null) { address.add(addresses.get(0).getFeatureName()); address.add(addresses.get(0).getAdminArea()); address.add(addresses.get(0).getCountryName()); bundle.putStringArrayList("id1", address); } bundle.putDouble("lat", lat); bundle.putDouble("lon", lng); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } class MapOverlay extends com.google.android.maps.Overlay { @Override public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when) { super.draw(canvas, mapView, shadow); //---translate the GeoPoint to screen pixels--- Point screenPts = new Point(); mapView.getProjection().toPixels(p, screenPts); //---add the marker--- Bitmap bmp = BitmapFactory.decodeResource( getResources(), R.drawable.logo); canvas.drawBitmap(bmp, screenPts.x, screenPts.y-50, null); return true; } @Override public boolean onTouchEvent(MotionEvent event, MapView mapView) { //---when user lifts his finger--- if (event.getAction() == 1) { Bundle bundle = new Bundle(); ArrayList <String> address = new ArrayList<String>(); GeoPoint p = mapView.getProjection().fromPixels( (int) event.getX(), (int) event.getY()); Geocoder geoCoder = new Geocoder( getBaseContext(), Locale.getDefault()); try { List<Address> addresses = geoCoder.getFromLocation( p.getLatitudeE6() / 1E6, p.getLongitudeE6() / 1E6, 1); addOverLay(); MapOverlay mapOverlay = new MapOverlay(); Bitmap bmp = BitmapFactory.decodeResource( getResources(), R.drawable.crumbs_logo); List<Overlay> listOfOverlays = mapView.getOverlays(); listOfOverlays.clear(); listOfOverlays.add(mapOverlay); String add = ""; if (addresses.size() > 0) { address.add(addresses.get(0).getFeatureName()); address.add(addresses.get(0).getLocality()); address.add(addresses.get(0).getAdminArea()); address.add(addresses.get(0).getCountryName()); bundle.putStringArrayList("id1", address); for(int i = 0; i <= addresses.size();i++) add += addresses.get(0).getAddressLine(i) + "\n"; } bundle.putDouble("lat", p.getLatitudeE6() / 1E6); bundle.putDouble("lon", p.getLongitudeE6() / 1E6); Toast.makeText(getBaseContext(), add, Toast.LENGTH_SHORT).show(); } catch (IOException e) { e.printStackTrace(); } return true; } else return false; } } public void onClick_mapButton(View v) { Intent intent = this.getIntent(); this.setResult(RESULT_OK, intent); intent.putExtras(bundle); finish(); } public void addOverLay() { MapOverlay mapOverlay = new MapOverlay(); List<Overlay> listOfOverlays = mapView.getOverlays(); listOfOverlays.clear(); listOfOverlays.add(mapOverlay); } @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } public void FindLocation() { LocationManager locationManager = (LocationManager) this .getSystemService(Context.LOCATION_SERVICE); LocationListener locationListener = new LocationListener() { public void onLocationChanged(Location location) { // updateLocation(location); Toast.makeText( LocationActivity.this, String.valueOf(lat) + "\n" + String.valueOf(lng), 5000) .show(); } public void onStatusChanged(String provider, int status, Bundle extras) { } public void onProviderEnabled(String provider) { } public void onProviderDisabled(String provider) { } }; locationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); } } I face two problems here. One is that when I click (do a tap) on any location, the overlay is not changing to that place. Also, the app crashes when I am on the MapView page and I click on back button. What might be the error?

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  • HttpWebRequest issues

    - by Allen Ho
    Hi, Im still having issues using HttpWebRequest. For some reason sometimes in my app the call just times out... HttpWebRequest req = null; req = (HttpWebRequest)WebRequest.CreateDefault(new Uri(aRequest)); req.PreAuthenticate = true; req.AllowAutoRedirect = true; req.KeepAlive = false; ..... resp = (HttpWebResponse)req.GetResponse(); resp.close(); I am closing the response but Im just wondering if it is more likely to fail since Im making requests all over the place? I tried playing around with the ServicePointManager class hoping it would help but it hasnt really System.Net.ServicePointManager.DefaultConnectionLimit = 100; System.Net.ServicePointManager.MaxServicePoints = 100;

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  • java.lang.NoClassDefFoundError: com/google/appengine/tools/enhancer/Enhance

    - by user1204337
    I am new to GAE, I follow the instructions on http://code.google.com/eclipse/docs/install-eclipse-3.7.html. I got the installation and registration done pretty fast. But when I tried to build the helloWorld project in Eclipse, before I can do anything, Eclipse gives me an error says "java.lang.NoClassDefFoundError: com/google/appengine/tools/enhancer/Enhance" and it is very weird. Because when you expand the app engine sdk, you can easily find the Enhance class under related jar file. I also tried Enhance e = null; and it is working. It seems that my eclipse just cannot find it. I don't know why it is not working, I am using JDK1.6, I reinstall my eclipse and the google plugins, I even disabled my firewall. Please help!!!

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  • SSL connection using Java standalone app

    - by Marquinio
    I have created a standalone executable JAR program that needs to send private information over a SSL connection. I was not able to establish the SSL connection using certificates. Was getting this: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path `building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target` So I found some code somewhere that creates a trust manager that does not validate certificate chains: // Create a trust manager that does not validate certificate chains TrustManager[] trustAllCerts = new TrustManager[]{ new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted( java.security.cert.X509Certificate[] certs, String authType) { } public void checkServerTrusted( java.security.cert.X509Certificate[] certs, String authType) { } } }; That did the trick and I was able to establish SSL connection without any certificates. My concern is if the data will still be encrypted when exchanging private information. This is an execute JAR file that clients will be downloading to their computers. So is a certificate really necessary for this case? Thanks.

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  • Is there a standard .NET exception to throw when a class doesn't implement a required attribute?

    - by a typing monkey
    Suppose I want to throw a new exception when invoking a generic method with a type that doesn't have a required attribute. Is there a .NET exception that's appropriate for this situation, or, more likely, one that would be a suitable ancestor for a custom exception? For example: public static class ClassA { public static T DoSomething<T>(string p) { Type returnType = typeof(T); object[] typeAttributes = returnType.GetCustomAttributes(typeof(SerializableAttribute), true); if ((typeAttributes == null) || (typeAttributes.Length == 0)) { // Is there an exception type in the framework that I should use/inherit from here? throw new Exception("This class doesn't support blah blah blah"); // Maybe ArgumentException? That doesn't seem to fit right. } } } Thanks.

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  • Google App Engine modifyThreadGroup problem

    - by Frank
    I'm using Google App Engine to process Paypal IPN messages, when my servlet starts I use the following lines to start another process to process massages : public class PayPal_Monitor_Servlet extends HttpServlet { PayPal_Message_To_License_File_Worker PayPal_message_to_license_file_worker; public void init(ServletConfig config) throws ServletException // Initializes the servlet. { super.init(config); PayPal_message_to_license_file_worker=new PayPal_Message_To_License_File_Worker(); } public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException { } ... } public class PayPal_Message_To_License_File_Worker implements Runnable { static Thread PayPal_Message_To_License_File_Thread; ... PayPal_Message_To_License_File_Worker() { start(); } void start() { if (PayPal_Message_To_License_File_Thread==null) { PayPal_Message_To_License_File_Thread=new Thread(this); PayPal_Message_To_License_File_Thread.setPriority(Thread.MIN_PRIORITY); PayPal_Message_To_License_File_Thread.start(); } ... } But "PayPal_Message_To_License_File_Thread=new Thread(this);" is causing the following error : javax.servlet.ServletContext log: unavailable java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:355) at java.security.AccessController.checkPermission(AccessController.java:567) Why, how to fix it ? Frank

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  • Flex Dataprovider caching issue.

    - by prashanth
    I have two combobox controls. If i change combobox A then I am reading from xml and populating combobox B. The xml is loaded into memory in Application's creationComplete method. When I select values in combobox A and then open combobox B, I am seeing the values correctly, but when I deploy it on the server in a different machine (which is in a different subdomain), then my combobox B values are not cleared and are retained by old selection, when I select the combobox B, then it is getting refreshed. I am making the dataprovider = null for combobox b, and when I am assigning new collection then i am refreshing the arraycollection as well. But still the problem is not solved.

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  • How to free memory from a list of classes

    - by Jason Rowe
    Say I have two classes created work and workItem. CWorker *work = new CWorker(); CWorkItem *workItem = new CWorkItem(); The work class has a public list m_WorkList and I add the work item to it. work->m_WorkList.push_back(workItem); If I just delete work if(work != NULL) delete work; Do I need to loop through the list in the destructor like the following? Any better way to do this? Could I use clear instead? while(m_WorkList.size()) { CWorkItem *workItem = m_WorkList.front(); m_WorkList.pop_front(); if(workItem) delete workItem; }

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