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  • Problem with dynamic create tabPages in Winforms TabControl

    - by mirt
    I want to create dynamic tabPages in TabControl. In each tabPage I create dataGridView and i want to fill the entire space of each tabPage with this dataGrid. Here is code, where i do this: private void tabControlMutants_SelectedIndexChanged(object sender, EventArgs e) { DataGridView dgw = new DataGridView(); DataGridViewTextBoxColumn testCaseCol = new System.Windows.Forms.DataGridViewTextBoxColumn(); DataGridViewTextBoxColumn resultCol = new System.Windoows.Forms.DataGridViewTextBoxColumn(); // // dataGridView1 // dgw.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize; dgw.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] { testCaseCol, resultCol}); dgw.Location = new System.Drawing.Point(3, 3); dgw.Name = "dataGridView1"; dgw.AutoSize = true; dgw.Dock = System.Windows.Forms.DockStyle.Fill; dgw.TabIndex = 0; // // TestCaseColumn // testCaseCol.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill; testCaseCol.HeaderText = "Test Case"; testCaseCol.Name = "TestCaseColumn"; // // ResultColumn // resultCol.HeaderText = "Result"; resultCol.Name = "ResultColumn"; tabControlMutants.TabPages[(sender as TabControl).SelectedIndex].Controls.Add(dgw); ((System.ComponentModel.ISupportInitialize)(dgw)).EndInit(); //fill dataGridView } But it doesn't work, becouse when i resize the main window, data gridView doesn.t change its size (although the dock property is set to fill). Any ideas?

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  • vbCrLf in Multiline TextBox shows up only when .Trim() is called

    - by Brandon Montgomery
    I have an ASP TextBox with TextMode set to MultiLine. I'm having problems with preserving the vbCrLf characters when a user tries to put line breaks into the text. When a button on the page is pressed, I'm taking the text from the control, trimming it using String.Trim, and assigning that value to a String property on an object (which, in turn assigns it to a private internal String variable on the object). The object then takes the value from the private internal variable and throws it into the database using a stored procedure call (the SP parameter it is put into is an nvarchar(4000)). ASPX Page: <asp:UpdatePanel ID="UpdatePanel2" runat="server" RenderMode="Inline" UpdateMode="Conditional" ChildrenAsTriggers="true"> <ContentTemplate> <!-- some other controls and things --> <asp:TextBox TextMode="MultiLine" runat="server" ID="txtComments" Width="100%" Height="60px" CssClass="TDTextArea" Style="border: 0px;" MaxLength="2000" /> <!-- some other controls and things --> </ContentTemplate> </asp:UpdatePanel> code behind: ProjectRequest.StatusComments = txtComments.Text.Trim object property: Protected mStatusComments As String = String.Empty Property StatusComments() As String Get Return mStatusComments.Trim End Get Set(ByVal Value As String) mStatusComments = Value End Set End Property stored proc call: Common.RunSP(mDBConnStr, "ProjectStatusUpdate", _ Common.MP("@UID", SqlDbType.NVarChar, 40, mUID), _ Common.MP("@ProjID", SqlDbType.VarChar, 40, mID), _ Common.MP("@StatusID", SqlDbType.Int, 8, mStatusID), _ Common.MP("@Comments", SqlDbType.NVarChar, 4000, mStatusComments), _ Common.MP("@PCTComp", SqlDbType.Int, 4, 0), _ Common.MP("@Type", Common.TDSqlDbType.TinyInt, 1, EntryType)) Here's the strangest part. When I debug the code, if I type "test test" (without the quotes) into the comments text box, then click the save button and use the immediate window to view the variable values as I step through, here is what I get: ?txtComments.Text "test test" ?txtComments.Text.Trim "test test" ?txtComments.Text(4) " "c ?txtComments.Text.Trim()(4) " "c Anyone have a clue as to what's going on here?

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  • WPF designer gives exception when databinding a label to a checkbox

    - by John
    I'm sure it's something stupid, but I'm playing around with databinding. I have a checkbox and a label on a form. What I'm trying to do is simply bind the Content of the label to the checkbox's IsChecked value. What I've done runs fine (no compilation errors and acts as expected), but if I touch the label in the XAML, the designer trows an exception: System.NullReferenceException Object reference not set to an instance of an object. at MS.Internal.Designer.PropertyEditing.Editors.MarkupExtensionInlineEditorControl.BuildBindingString(Boolean modeSupported, PropertyEntry propertyEntry) at <Window x:Class="UnitTestHelper.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:FileSysCtls="clr-namespace:WPFFileSystemUserControls;assembly=WPFFileSystemUserControls" xmlns:HelperClasses="clr-namespace:UnitTestHelper" Title="MainWindow" Height="406" Width="531"> <Window.Resources> <HelperClasses:ThreestateToBinary x:Key="CheckConverter" /> </Window.Resources> <Grid Height="367" Width="509"> <CheckBox Content="Step into subfolders" Height="16" HorizontalAlignment="Left" Margin="17,254,0,0" Name="chkSubfolders" VerticalAlignment="Top" Width="130" IsThreeState="False" /> <Label Height="28" HorizontalAlignment="Left" Margin="376,254,0,0" Name="lblStepResult" VerticalAlignment="Top" Width="120" IsEnabled="True" Content="{Binding IsChecked, ElementName=chkSubfolders, Mode=OneWay, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource CheckConverter}}" /> </Grid> The ThreeStateToBinary class is as follows: class ThreestateToBinary : IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if ((bool)value) return "Checked"; else return "Not checked"; //throw new NotImplementedException(); } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return ((string)value == "Checked"); //throw new NotImplementedException(); } #endregion } Quite honestly, I'm playing around with it at this point. It was originally simpler (not using the ValueConverter) but was displaying similar behavior when I simply had the content set to: Content="{Binding IsChecked, ElementName=chkSubfolders, UpdateSourceTrigger=PropertyChanged}" Any ideas? Thanks, John

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  • Mixing NIO with IO

    - by Steffen Heil
    Hi Usually you have a single bound tcp port and several connections on these. At least there are usually more connections as bound ports. My case is different: I want to bind a lot of ports and usually have no (or at least very few) connections. So I want to use NIO to accept the incoming connections. However, I need to pass the accepted connections to the existing jsch ssh library. That requires IO sockets instead of NIO sockets, it spawns one (or two) thread(s) per connection. But that's fine for me. Now, I thought that the following lines would deliver the very same result: Socket a = serverSocketChannel.accept().socket(); Socket b = serverSocketChannel.socket().accep(); SocketChannel channel = serverSocketChannel.accpet(); channel.configureBlocking( true ); Socket c = channel.socket(); Socket d = serverSocket.accept(); However the getInputStream() and getOutputStream() functions of the returned sockets seem to work different. Only if the socket was accepted using the last call, jsch can work with it. In the first three cases, it fails (and I am sorry: I don't know why). So is there a way to convert such a socket? Regards, Steffen

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  • Double type returns -1.#IND/NaN error when calculating pi iteratively

    - by Draak
    I am working through a problem for my MCTS certification. The program has to calculate pi until the user presses a key, at which point the thread is aborted, the result returned to the main thread and printed in the console. Simple enough, right? This exercise is really meant to be about threading, but I'm running into another problem. The procedure that calculates pi returns -1.#IND. I've read some of the material on the web about this error, but I'm still not sure how to fix it. When I change double to Decimal type, I unsurprisingly get Overflow Exception very quickly. So, the question is how do I store the numbers correctly? Do I have to create a class to somehow store parts of the number when it gets too big to be contained in a Decimal? Class PiCalculator Dim a As Double = 1 Dim b As Double = 1 / Math.Sqrt(2) Dim t As Double = 1 / 4 Dim p As Double = 1 Dim pi As Double Dim callback As DelegateResult Sub New(ByVal _callback As DelegateResult) callback = _callback End Sub Sub Calculate() Try Do While True Dim a1 = (a + b) / 2 Dim b1 = Math.Sqrt(a * b) Dim t1 = t - p * (a - a1) ^ 2 Dim p1 = 2 * p a = a1 b = b1 t = t1 p = p1 pi = ((a + b) ^ 2) / (4 * t) Loop Catch ex As ThreadAbortException Finally callback(pi) End Try End Sub End Class

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  • Default class for SQLAlchemy single table inheritance

    - by eclaird
    I've set up a single table inheritance, but I need a "default" class to use when an unknown polymorphic identity is encountered. The database is not in my control and so the data can be pretty much anything. A working example setup: import sqlalchemy as sa from sqlalchemy import orm engine = sa.create_engine('sqlite://') metadata = sa.MetaData(bind=engine) table = sa.Table('example_types', metadata, sa.Column('id', sa.Integer, primary_key=True), sa.Column('type', sa.Integer), ) metadata.create_all() class BaseType(object): pass class TypeA(BaseType): pass class TypeB(BaseType): pass base_mapper = orm.mapper(BaseType, table, polymorphic_on=table.c.type, polymorphic_identity=None, ) orm.mapper(TypeA, inherits=base_mapper, polymorphic_identity='A', ) orm.mapper(TypeB, inherits=base_mapper, polymorphic_identity='B', ) Session = orm.sessionmaker(autocommit=False, autoflush=False) session = Session() Now, if I insert a new unmapped identity... engine.execute('INSERT INTO EXAMPLE_TYPES (TYPE) VALUES (\'C\')') session.query(BaseType).first() ...things break. Traceback (most recent call last): File "<stdin>", line 1, in <module> File ".../SQLAlchemy-0.6.5-py2.6.egg/sqlalchemy/orm/query.py", line 1619, in first ret = list(self[0:1]) File ".../SQLAlchemy-0.6.5-py2.6.egg/sqlalchemy/orm/query.py", line 1528, in __getitem__ return list(res) File ".../SQLAlchemy-0.6.5-py2.6.egg/sqlalchemy/orm/query.py", line 1797, in instances rows = [process[0](row, None) for row in fetch] File ".../SQLAlchemy-0.6.5-py2.6.egg/sqlalchemy/orm/mapper.py", line 2179, in _instance _instance = polymorphic_instances[discriminator] File ".../SQLAlchemy-0.6.5-py2.6.egg/sqlalchemy/util.py", line 83, in __missing__ self[key] = val = self.creator(key) File ".../SQLAlchemy-0.6.5-py2.6.egg/sqlalchemy/orm/mapper.py", line 2341, in configure_subclass_mapper discriminator) AssertionError: No such polymorphic_identity u'C' is defined What I expected: >>> result = session.query(BaseType).first() >>> result <BaseType object at 0x1c8db70> >>> result.type u'C' I think this used to work with some older version of SQLAlchemy, but I haven't been keeping up with the development lately. Any pointers on how to accomplish this?

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  • Drag and drop rectangle in C#

    - by sama
    I want to know how to draw rectangle in C# and make it dragged and dropped in the page here my code to draw it but I cannot drag or drop it. public partial class Form1 : Form { public bool drag = false; int cur_x, cur_y; Rectangle rec = new Rectangle(10, 10, 100, 100); public Form1() { InitializeComponent(); } protected override void OnPaint(PaintEventArgs r) { base.OnPaint(r); Graphics g = r.Graphics; //g.DrawRectangle(Pens.Black, rec); g.FillRectangle(Brushes.Aquamarine, rec); } private void recmousedown(object sender, MouseEventArgs m) { if (m.Button != MouseButtons.Left) return; rec = new Rectangle(m.X, m.Y,100,100); drag = true; cur_x = m.X; cur_y = m.Y; } private void recmousemove(object sender, MouseEventArgs m) { if (m.Button != MouseButtons.Left) return; rec.X = m.X; rec.Y = m.Y; Invalidate(); } }

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  • Creating a WCF ServiceHost object takes three to four minutes on some PCs

    - by Steve
    Hello, I have created a WCF service which does not use the app.config to configure itself. However, it takes three to four minutes on some PCs to construct the ServiceHost object. Thinking there was something wrong with my service, I constructed a simple Hello, World service and tried it with that. I have the same issue. According to the profiler, all this time is spent reading in configuration for the service. So I have two questions really. Is it possible to disable reading config from the XML? More importantly, does anyone have any idea why this might be taking such an inordinate amount of time? Here is the sample service: [ServiceContract] public interface IMyService { [OperationContract] string GetString(); } [ServiceBehavior(InstanceContextMode=InstanceContextMode.Single)] public class MyService : IMyService { public string GetString() { return "Hello, world!"; } } class Program { static void Main(string[] args) { Uri epAddress = new Uri("http://localhost:8731/Test"); Uri[] uris = new Uri[] { epAddress }; MyService srv = new MyService(); ServiceHost host = new ServiceHost(srv, uris); // this line takes 3-4 minutes host.AddServiceEndpoint(typeof(IMyService), new WSHttpBinding(), "Test"); ServiceMetadataBehavior smb = new ServiceMetadataBehavior(); smb.HttpGetEnabled = true; host.Description.Behaviors.Add(smb); host.Open(); return; } } I need for design reasons to create the service and pass it in as an object, rather than passing it in as a type. If there's any more information that can be of use, please let me know. Many thanks.

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  • How to horizontally sort divs using Sortable in JQuery

    - by Tahir Akram
    I am looking to sort my divs horizontally in a container div. I found an example on JQuery website but that is vertical sorting. I want it horizontal. I want to do it sorting in #sortable Div. Will you please guide me how can I convert this vertical sorting in horizontal manner. CSS <style type="text/css"> #draggable1 { width: 150px; height: 35px; padding: 0.5em; } #draggable2 { width: 150px; height: 35px; padding: 0.5em; } #draggable3 { width: 150px; height: 35px; padding: 0.5em; } #sortable { width: 700px; height: 35px; padding: 0.5em; } </style> JavaScript <script type="text/javascript"> $(function() { $("#sortable").sortable({ revert: true }); }); </script> HTML <div class="demo"> <div id="sortable" class="ui-state-default"> <div id = "draggable1" class="ui-state-default">Home</div> <div id = "draggable2" class="ui-state-default">Contact Us</div> <div id = "draggable3" class="ui-state-default">FAQs</div> </div> </div> Screenshot

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  • Intellisense fails for boost::shared_ptr with Boost 1.40.0 in Visual Studio 2008

    - by Edward Loper
    I'm having trouble getting intellisense to auto-complete shared pointers for boost 1.40.0. (It works fine for Boost 1.33.1.) Here's a simple sample project file where auto-complete does not work: #include <boost/shared_ptr.hpp> struct foo { bool func() { return true; }; }; void bar() { boost::shared_ptr<foo> pfoo; pfoo.get(); // <-- intellisense does not autocomplete after "pfoo." pfoo->func(); // <-- intellisense does not autocomplete after "pfoo->" } When I right-click on shared_ptr, and do "Go to Definition," it brings be to a forward-declaration of the shared_ptr class in . It does not bring me to the actual definition, which is in However, it compiles fine, and auto-completion works fine for "boost::." Also, auto-completion works fine for boost::scoped_ptr and for boost::shared_array. Any ideas?

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  • unable to send email using REST API build in php?

    - by Pushpendra Kuntal
    i am designing REST API in php. I want to send a page to send email. This is my code to send email: $app->get('/sendemail', function () { <?php require_once "Mail.php"; $from = "Sandra Sender <[email protected]>"; $to = "Ramona Recipient <[email protected]>"; $subject = "Hi!"; $body = "Hi,\n\nHey Kuntal, you done it..."; $host = "my host"; $username = "myuserid"; $password = "password"; $headers = array ('From' => $from, 'To' => $to, 'Subject' => $subject); $smtp = Mail::factory('smtp', array ('host' => $host, 'auth' => true, 'username' => $username, 'password' => $password)); $mail = $smtp->send($to, $headers, $body); if (PEAR::isError($mail)) { echo("<p>" . $mail->getMessage() . "</p>"); } else { echo("<p>Message successfully sent!</p>"); } ?> }); My code of sending email is working if i check this into my separate file. But this code is not working in API. please suggest me what should i do for this?

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  • Java random values and duplicates

    - by f-Prime
    I have an array (cards) of 52 cards (13x4), and another array (cardsOut) of 25 cards (5x5). I want to copy elements from the 52 cards into the 25 card array by random. Also, I dont want any duplicates in the 5x5 array. So here's what I have: double row=Math.random() *13; double column=Math.random() *4; boolean[][] duplicates=new boolean[13][4]; pokerGame[][] cardsOut = new pokerGame[5][5]; for (int i=0;i<5;i++) for (int j=0;j<5;j++){ if(duplicates[(int)row][(int)column]==false){ cardsOut[i][j]=cards[(int)row][(int)column]; duplicates[(int)row][(int)column]=true; } } 2 problems in this code. First, the random values for row and column are only generated once, so the same value is copied into the 5x5 array every time. Since the same values are being copied every time, I'm not sure if my duplicate checker is very effective, or if it works at all. How do I fix this?

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  • CCNet: "Failing Tasks : FilteredSourceControl: CheckForModifications" error

    - by Marc
    I've installed CCNet and now I'm trying to set up a link to our repository. When I visit the CCNet dashboard website the project shows up ok, but when I click the Force button I receive this error in the messages column: Failing Tasks : FilteredSourceControl: CheckForModifications If I log into the server as the account which I've specified CCNet should use to connect to the repository, and do an Update on the project by hand (i.e. using SVN.exe or TortoiseSVN) the update works fine. My sourcecontrol section of the CCNet.config file is below. <sourcecontrol type="filtered"> <sourceControlProvider type="svn" autoGetSource="true"> <executable>E:\SVNServer\bin\svn.exe</executable> <trunkUrl> https://bserver.int:4443/trunk </trunkUrl> <workingDirectory>E:\buildserver</workingDirectory> <username>USER</username> <password>PASSWORD</password> </sourceControlProvider> <inclusionFilters> <pathFilter> <pattern>**/*.*</pattern> </pathFilter> </inclusionFilters> </sourcecontrol> Both the cruisecontrol.net website and google seem utterly devoid of any information on this error, other than that it probably relates to the inclusionfilter section in the block above. Can anyone provide any ideas?

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  • UniqueConstraint in EmbeddedConfiguration

    - by LantisGaius
    I just started using db4o on C#, and I'm having trouble setting the UniqueConstraint on the DB.. here's the db4o configuration static IObjectContainer db = Db4oEmbedded.OpenFile(dbase.Configuration(), "data.db4o"); static IEmbeddedConfiguration Configuration() { IEmbeddedConfiguration dbConfig = Db4oEmbedded.NewConfiguration(); // Initialize Replication dbConfig.File.GenerateUUIDs = ConfigScope.Globally; dbConfig.File.GenerateVersionNumbers = ConfigScope.Globally; // Initialize Indexes dbConfig.Common.ObjectClass(typeof(DAObs.Environment)).ObjectField("Key").Indexed(true); dbConfig.Common.Add(new Db4objects.Db4o.Constraints.UniqueFieldValueConstraint(typeof(DAObs.Environment), "Key")); return dbConfig; } and the object to serialize: class Environment { public string Key { get; set; } public string Value { get; set; } } everytime I get to commiting some values, an "Object reference not set to an instance of an object." Exception pops up, with a stack trace pointing to the UniqueFieldValueConstraint. Also, when I comment out the two lines after the "Initialize Indexes" comment, everything runs fine (Except you can save non-unique keys, which is a problem)~ Commit code (In case I'm doing something wrong in this part too:) public static void Create(string key, string value) { try { db.Store(new DAObs.Environment() { Key = key, Value = value }); db.Commit(); } catch (Db4objects.Db4o.Events.EventException ex) { System.Console.WriteLine (DateTime.Now + " :: Environment.Create\n" + ex.InnerException.Message +"\n" + ex.InnerException.StackTrace); db.Rollback(); } } Help please? Thanks in advance~

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  • Using Hibernate's ScrollableResults to slowly read 90 million records

    - by at
    I simply need to read each row in a table in my MySQL database using Hibernate and write a file based on it. But there are 90 million rows and they are pretty big. So it seemed like the following would be appropriate: ScrollableResults results = session.createQuery("SELECT person FROM Person person") .setReadOnly(true).setCacheable(false).scroll(ScrollMode.FORWARD_ONLY); while (results.next()) storeInFile(results.get()[0]); The problem is the above will try and load all 90 million rows into RAM before moving on to the while loop... and that will kill my memory with OutOfMemoryError: Java heap space exceptions :(. So I guess ScrollableResults isn't what I was looking for? What is the proper way to handle this? I don't mind if this while loop takes days (well I'd love it to not). I guess the only other way to handle this is to use setFirstResult and setMaxResults to iterate through the results and just use regular Hibernate results instead of ScrollableResults. That feels like it will be inefficient though and will start taking a ridiculously long time when I'm calling setFirstResult on the 89 millionth row... UPDATE: setFirstResult/setMaxResults doesn't work, it turns out to take an unusably long time to get to the offsets like I feared. There must be a solution here! Isn't this a pretty standard procedure?? I'm willing to forgo Hibernate and use JDBC or whatever it takes. UPDATE 2: the solution I've come up with which works ok, not great, is basically of the form: select * from person where id > <offset> and <other_conditions> limit 1 Since I have other conditions, even all in an index, it's still not as fast as I'd like it to be... so still open for other suggestions..

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  • How to produce an HTTP 403-equivalent WCF Message from an IErrorHandler?

    - by Andras Zoltan
    I want to write an IErrorHandler implementation that will handle AuthenticationException instances (a proprietary type), and then in the implementation of ProvideFault provide a traditional Http Response with a status code of 403 as the fault message. So far I have my first best guess wired into a service, but WCF appears to be ignoring the output message completely, even though the error handler is being called. At the moment, the code looks like this: public class AuthWeb403ErrorHandler : IErrorHandler { #region IErrorHandler Members public bool HandleError(Exception error) { return error is AuthenticationException; } public void ProvideFault(Exception error, MessageVersion version, ref Message fault) { //first attempt - just a stab in the dark, really HttpResponseMessageProperty property = new HttpResponseMessageProperty(); property.SuppressEntityBody = true; property.StatusCode = System.Net.HttpStatusCode.Forbidden; property.StatusDescription = "Forbidden"; var m = Message.CreateMessage(version, null); m.Properties[HttpResponseMessageProperty.Name] = property; fault = m; } #endregion } With this in place, I just get the standard WCF html 'The server encountered an error processing the request. See server logs for more details.' - which is what would happen if there was no IErrorHandler. Is this a feature of the behaviours added by WebServiceHost? Or is it because the message I'm building is simply wrong!? I can verify that the event log is indeed not receiving anything. My current test environment is a WebGet method (both XML and Json) hosted in a service that is created with the WebServiceHostFactory, and Asp.Net compatibility switched off. The service method simply throws the exception in question.

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  • Android: Nexus One - Geocoder causes IOException - works perfectly with other devices and emulator

    - by Stefan Klumpp
    The code below works perfectly for real devices running on 1.5, 1.6 and 2.0 as well as the emulator running on 2.1. However, executing it on the Nexus One (running 2.1) raises an IOException: java.io.IOException: Unable to parse response from server at android.location.Geocoder.getFromLocation(Geocoder.java:124) That's the code snippet where it happens: Double myLatitude = AppObject.myLocation.getLatitude(); Double myLongitude = AppObject.myLocation.getLongitude(); DEBUG.i(TAG, "My location: " + myLatitude + " | " + myLongitude); Geocoder geocoder = new Geocoder(MainActivity.this); java.util.List<Address> addressList; try { addressList = geocoder.getFromLocation(myLatitude, myLongitude, 5); if(addressList!=null && addressList.size()>0) { currentAddress = new String(); DEBUG.i(TAG,addressList.get(0).toString()); currentAddress = addressList.get(0).getAddressLine(0) + ", " + addressList.get(0).getAddressLine(1) + ", " + addressList.get(0).getAddressLine(2); } return true; } catch (IOException e) { e.printStackTrace(); return false; }

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  • matplotlib.pyplot/pylab not updating figure while isinteractive(), using ipython -pylab

    - by NumberOverZero
    There are a lot of questions about matplotlib, pylab, pyplot, ipython, so I'm sorry if you're sick of seeing this asked. I'll try to be as specific as I can, because I've been looking through people's questions and looking at documentation for pyplot and pylab, and I still am not sure what I'm doing wrong. On with the code: Goal: plot a figure every .5 seconds, and update the figure as soon as the plot command is called. My attempt at coding this follows (running on ipython -pylab): import time ion() x=linspace(-1,1,51) plot(sin(x)) for i in range(10): plot([sin(i+j) for j in x]) #see ** print i time.sleep(1) print 'Done' It correctly plots each line, but not until it has exited the for loop. I have tried forcing a redraw by putting draw() where ** is, but that doesn't seem to work either. Ideally, I'd like to have it simply add each line, instead of doing a full redraw. If redrawing is required however, that's fine. Additional attempts at solving: just after ion(), tried adding hold(True) to no avail. for kicks tried show() for ** The closest answer I've found to what I'm trying to do was at http://stackoverflow.com/questions/2310851/plotting-lines-without-blocking-execution, but show() isn't doing anything. I apologize if this is a straightforward request, and I'm looking past something so obvious. For what it's worth, this came up while I was trying to convert matlab code from class to some python for my own use. The original matlab (initializations removed) which I have been trying to convert follows: for i=1:time plot(u) hold on pause(.01) for j=2:n-1 v(j)=u(j)-2*u(j-1) end v(1)= pi u=v end Any help, even if it's just "look up this_method" would be excellent, so I can at least narrow my efforts to figuring out how to use that method. If there's any more information that would be useful, let me know.

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  • Java RMI AccessControlException: access denied

    - by Gwilym
    Hey im getting a AccessControlException: access denied when attempting to start up a RMI app im writing, I cant work out why I get this exception if I open it on the default port 1099, or on another dynamic port, my policy file currently grants everything (will change when app is finished). I am stuck as to where It is going wrong, any help would but of great use My code public class Main { /** * @param args the command line arguments */ public static void main(String[] args) throws RemoteException, AlreadyBoundException, MalformedURLException { if (System.getSecurityManager() == null) { System.setSecurityManager ( new RMISecurityManager() ); } CreditCardServer ccs = new CreditCardServer(); int port = 1099; try { port = Integer.valueOf(args[0]); } catch (Exception e) { System.out.println("Invlaid Port"); } if (((port <= 65535) && (port >= 49152)) || port ==1099) { System.out.println("Valid Port"); } else { port = 1099; System.out.println("Port not in Dynamic Range 49152<-->65535"); } System.out.println(port); LocateRegistry.createRegistry(port); LocateRegistry.getRegistry().bind("CreditCardServer", ccs); while (true) { //hum? } } } The Stack Trace vega3 [ia32.linux] 23% java -Djava.security.policy=wideopen.policy -jar "BookStore-CreditCardServer.jar 65000" Valid Port 65000 Exception in thread "main" java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:342) at java.security.AccessController.checkPermission(AccessController.java:553) at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) at java.lang.SecurityManager.checkConnect(SecurityManager.java:1051) at java.net.Socket.connect(Socket.java:536) at java.net.Socket.connect(Socket.java:492) at java.net.Socket.<init>(Socket.java:389) at java.net.Socket.<init>(Socket.java:203) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:340) at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source) at bookstorecreditcardserver.Main.main(Main.java:56) My Policy File grant { // Allow everything for now permission java.security.AllPermission; };

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  • Call webservice from Android using KSoap simply returning "error" string

    - by w00tfest99
    I'm trying to use ksoap to call a simple webservice. I followed this video to try to get started. When I call "getResponse()" on the envelope I just get the string "Error". There's no exceptions thrown or any other detail. I've successfully connected to a simple webservice I just setup on my local machine. Could this potentially be related to being behind a proxy server here at work? My code is below: String SOAP_ACTION="http://tempuri.org/CelsiusToFahrenheit"; String METHOD_NAME = "CelsiusToFahrenheit"; String NAMESPACE = "http://tempuri.org"; String URL = "http://w3schools.com/webservices/tempconvert.asmx"; SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); PropertyInfo pi = new PropertyInfo(); pi.setName("Celsius"); pi.setValue("32"); request.addProperty(pi); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.dotNet = true; envelope.setOutputSoapObject(request); HttpTransportSE aht = new HttpTransportSE(URL); try { aht.call(SOAP_ACTION, envelope); SoapPrimitive results = (SoapPrimitive)envelope.getResponse(); } catch (Exception e) { e.printStackTrace(); }

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  • I'm trying to populate a MySQL table with some data, but, mysqli won't let me insert every 10th stat

    - by Tunji Gbadamosi
    I want to initialise a 'ticket' table with some ticket IDs. To do this, I want to insert 120 ticket IDs into the table. However, at every 10th statement, MySQL tells me that the ID already exists and thus won't let me insert it. Here's my code: //make a query $insert_ticket_query = "INSERT INTO ticket (id) VALUES (?)"; $insert_ticket_stmt = $mysqli->stmt_init(); $insert_ticket_stmt->prepare($insert_ticket_query); $insert_ticket_stmt->bind_param('s', $ticket_id); $mysqli->autocommit(FALSE); //start transaction for($i=0;$i<NO_GUESTS;$i++){ $id = generate_id($i); $ticket_id = format_id($id, $prefix['ticket'], $suffix['ticket']); $t_id = $ticket_id; //echo '<p>'.$ticket_id.'</p>'; //$result = $mysqli->query("SELECT * FROM ticket WHERE id='".$ticket_id."'"); //$row_count = $result->num_rows; if(($result = $mysqli->query("SELECT * FROM ticket WHERE id='".$t_id."'")) == FALSE){ $result->close(); if($insert_ticket_stmt->execute()){ $mysqli->commit(); echo "<p>".$t_id."added to the ticket table!</p>"; } else{ $mysqli->rollback(); echo "problem inserting'".$t_id."' to the ticket table"; } } else{ echo "<p>".$t_id."already exists, so not adding it!</p>"; $result->close(); } } $mysqli->autocommit(TRUE); $insert_ticket_stmt->close(); ?>

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  • Opening href in jQuery Dialog

    - by Phil
    Okay, so I've got the following code to create a dialog of a div within a page: $('#modal').dialog({ autoOpen: false, width: 600, height: 450, modal: true, resizable: false, draggable: false, title: 'Enter Data', close: function() { $("#modal .entry_date").datepicker('hide'); } }); $('.modal').click(function() { $('#modal').dialog('open'); }); All working fine. But what I want is to also be able to open a link in a dialog window, kinda like... <a href="/path/to/file.html" class="modal">Open Me!!</a> I've done this before by hardcoding the path: $('#modal').load('/path/to/file.html').dialog('open'); but we can't hardcode the path in the javascript (as there will be multiple coming from the database) and I'm struggling to understand how to get this to work. I'm also pretty sure that the answer is really obvious, and I'm merely setting myself up to be humbled by the clever folk here at StackOverflow, but I've scratched my head for long enough this afternoon, so my ego has been put away, and hopefully someone can point me in the right direction... Thanks Phil

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  • HttpModule with ASP.NET MVC not being called

    - by mgroves
    I am trying to implement a session-per-request pattern in an ASP.NET MVC 2 Preview 1 application, and I've implemented an IHttpModule to help me do this: public class SessionModule : IHttpModule { public void Init(HttpApplication context) { context.Response.Write("Init!"); context.EndRequest += context_EndRequest; } // ... etc... } And I've put this into the web.config: <system.web> <httpModules> <add name="SessionModule" type="MyNamespace.SessionModule" /> </httpModules> <system.webServer> <modules runAllManagedModulesForAllRequests="true"> <remove name="SessionModule" /> <add name="SessionModule" type="MyNamespace.SessionModule" /> </modules> However, "Init!" never gets written to the page (I'm using the built-in VS web server, Cassini). Additionally, I've tried putting breakpoints in the SessionModule but they never break. What am I missing?

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  • loading js files and other dependent js files asynchronously

    - by taber
    I'm looking for a clean way to asynchronously load the following types of javascript files: a "core" js file (hmm, let's just call it, oh i don't know, "jquery!" haha), x number of js files that are dependent on the "core" js file being loaded, and y number of other unrelated js files. I have a couple ideas of how to go about it, but not sure what the best way is. I'd like to avoid loading scripts in the document body. So for example, I want the following 4 javascript files to load asynchronously, appropriately named: /js/my-contact-page-js-functions.js // unrelated/independent script /js/jquery-1.3.2.min.js // the "core" script /js/jquery.color.min.js // dependent on jquery being loaded http://thirdparty.com/js/third-party-tracking-script.js // another unrelated/independent script But this won't work because it's not guaranteed that jQuery is loaded before the color plugin... (function() { a=[ '/js/my-contact-page-functions.js', '/js/jquery-1.4.2.min.js', '/js/jquery.color.js', 'http://cdn.thirdparty.com/third-party-tracking-script.js', ], d=document, h=d.getElementsByTagName('head')[0], s, i, l=a.length; for(i=0;i<l;i++){ s=d.createElement('script'); s.type='text/javascript'; s.async=true; s.src=a[i]; h.appendChild(s); } })(); Is it pretty much not possible to load jquery and the color plugin asynchronously? (Since the color plugin requires that jQuery is loaded first.) The first method I was considering is to just combine the color plugin script with jQuery source into one file. Then another idea I had was loading the color plugin like so: $(window).ready(function() { $.getScript("/js/jquery.color.js"); }); Anyone have any thoughts on how you'd go about this? Thanks!

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  • DataGridView display row header cell

    - by Karl
    I'm trying to display a simple DataGridView linked to a DataTable and I want, ultimately, my first column in the DataTable to be the row header cell for the DataGridView. At this point I will settle for having any value in the row header cell. I can display the DataGridView with all my rows and columns, and with column header cells, but no row header cell. I check the value in the row.HeaderCell.Value, and the data I put there is there. I check row.HeaderCell.Displayed and it is false, but this is read only, so I can't make it true. How do I make the row header cell display? Here's a simple sample of what I've tried to get this to work: DataTable table = new DataTable(); for (int i = 0; i<10; i++) { table.Columns.Add(new DataColumn("column-" + i)); } for (int i = 0; i < 10; i++) { DataRow theRow = table.NewRow(); for (int j = 0; j < 10; j++) theRow[j] = i + "-" + j; table.Rows.Add(theRow); } dataGridView1.DataSource = table; dataGridView1.RowHeadersWidthSizeMode = System.Windows.Forms.DataGridViewRowHeadersWidthSizeMode.AutoSizeToDisplayedHeaders; int rowNumber = 1; foreach (DataGridViewRow row in dataGridView1.Rows) { if (row.IsNewRow) continue; row.HeaderCell.Value = "Row " + rowNumber; rowNumber = rowNumber + 1; } dataGridView1.AutoResizeRowHeadersWidth( DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);

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