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• How to allow for modular development while still running in same JVM?

  - by Marcus

  Our current app runs in a single JVM. We are now splitting up the app into separate logical services where each service runs in its own JVM. The split is being done to allow a single service to be modified and deployed without impacting the entire system. This reduces the need to QA the entire system - just need to QA the interaction with the service being changed. For interservice communication we use a combination of REST, an MQ system bus, and database views. What I don't like about this: REST means we have to marshal data to/from XML DB views couple the systems together which defeats the whole concept of separate services MQ / system bus is added complexity There is inevitably some code duplication between services You have set up n JBoss server configurations, we have to do n number of deployments, n number of set up scripts, etc, etc. Is there a better way to structure an internal application to allow modular development and deployment while allowing the app to run in a single JVM (and achieving the associated benefits)?

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• Dynamically class creating by using Java Reflection, java.lang.ClassNotFoundException

  - by rubby

  Hi all; i want to use reflection in java, i want to do that third class will read the name of the class as String from console. Upon reading the name of the class, it will automatically and dynamically (!) generate that class and call its writeout method. If that class is not read from input, it will not be initialized. I wrote that codes but i am always taking to "java.lang.Class.Not.Found.Exception", and i don't know how i can fix it. Can anyone help me? class class3 { public Object dynamicsinif(String className, String fieldName, String value) throws Exception { Class cls = Class.forName(className,true,null); Object obj = cls.newInstance(); Field fld = cls.getField(fieldName); fld.set(obj, value); return obj; } public void writeout3() { System.out.println("class3"); } } public class Main { public static void main(String[] args) throws Exception { System.out.println("enter the class name : "); BufferedReader reader= new BufferedReader(new InputStreamReader(System.in)); String line=reader.readLine(); String x="Text1"; try{ class3 trycls=new class3(); Object gelen=trycls.dynamicsinif(line, x, "rubby"); Class yeni=(Class)gelen; System.out.println(yeni); }catch(ClassNotFoundException ex){ System.out.print(ex.toString()); } } }

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• Unable to serialize correctly- c#

  - by ltech

  I had asked this Yesterday If my xsd schema changes to <xs:element name="Document" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:sequence> <xs:element name="MetaDoc" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:sequence> <xs:element name="ATTRIBUTES" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:sequence> <xs:element name="author" type="xs:string" minOccurs="0" /> <xs:element name="max_versions" type="xs:string" minOccurs="0" /> <xs:element name="summary" type="xs:string" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> My xsd - class generation becomes /// <remarks/> [System.Xml.Serialization.XmlArrayAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] [System.Xml.Serialization.XmlArrayItemAttribute("MetaDoc", typeof(DocumentMetaDocATTRIBUTES[]), Form=System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable=false)] [System.Xml.Serialization.XmlArrayItemAttribute("ATTRIBUTES", typeof(DocumentMetaDocATTRIBUTES), Form=System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable=false, NestingLevel=1)] public DocumentMetaDocATTRIBUTES[][][] Document { get { return this.documentField; } set { this.documentField = value; } } If I am deriving to CollectionBase, as shown in my previous post, how would I manage the XmlArrayItemAttribute ? so that I can read this part of my input xml into my strongly types object <Document> <MetaDoc> <ATTRIBUTES> <author>asas</author> <max_versions>1</max_versions> <summary>aasasqqqq</summary> </ATTRIBUTES> </MetaDoc> </Document>

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• C2360 compiler error on TFS build, but not on desktop

  - by pdmaguire

  A c++ code snippet similar to the code below caused our TFS build to fail with a C2360 compiler error. switch (i) { case 0 : for each (int n in a) System::Console::WriteLine(n.ToString()); break; case 1 : System::Console::WriteLine("n is not in scope here"); break; } This is fixed by using {} brackets within the body of case 0, as below: switch (i) { case 0 : { for each (int n in a) System::Console::WriteLine(n.ToString()); } break; case 1 : System::Console::WriteLine("n is not in scope here"); break; } The developer had successfully compiled the code on their desktop before committing the changes. A cursory look at versions of things like compilers, Visual Studio etc on the server and desktop suggest they are the same. The source code is the same, obviously. What is the difference between a desktop build and TFS build that would smother a compiler error like this?

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• How to read data from file(.dat) in append mode

  - by govardhan

  We have an application which requires us to read data from a file (.dat) dynamically using deserialization. We are actually getting first object and it throws null pointer exception and "java.io.StreamCorruptedException:invalid type code:AC" when we are accessing other objects using a "for" loop. File file=null; FileOutputStream fos=null; BufferedOutputStream bos=null; ObjectOutputStream oos=null; try{ file=new File("account4.dat"); fos=new FileOutputStream(file,true); bos=new BufferedOutputStream(fos); oos=new ObjectOutputStream(bos); oos.writeObject(m); System.out.println("object serialized"); amlist=new MemberAccountList(); oos.close(); } catch(Exception ex){ ex.printStackTrace(); } Reading objects: try{ MemberAccount m1; file=new File("account4.dat");//add your code here fis=new FileInputStream(file); bis=new BufferedInputStream(fis); ois=new ObjectInputStream(bis); System.out.println(ois.readObject()); **while(ois.readObject()!=null){ m1=(MemberAccount)ois.readObject(); System.out.println(m1.toString()); }/*mList.addElement(m1);** // Here we have the issue throwing null pointer exception Enumeration elist=mList.elements(); while(elist.hasMoreElements()){ obj=elist.nextElement(); System.out.println(obj.toString()); }*/ } catch(ClassNotFoundException e){ } catch(EOFException e){ System.out.println("end"); } catch(Exception ex){ ex.printStackTrace(); }

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• Can not make the settings from the sidebar gadget get applied

  - by Daniel

  Hey guys, OK, I am not an expert at Sidebar Gadgets, but I have this project I will have to make for school. Have tried to solve it on my own but I got really stuck. I will have to use the Cirip API (Cirip.ro being a kind of Twitter), and for the use of the API I have to input the username. I do so by means of the Settings, but when closing the settings there is no effect. Here is the code, but it's pretty messy. I am not a web programmer so javascript/html is new to me. http://www.box.net/shared/7yogevhzrr Thank you for your remark, Andy. From gadget.js function setUserName(userNameSet){ userName = userNameSet; } function getUserName(){ return userName; } function settingsClosed(event) { if(event.closeAction == event.Action.commit) { var user = System.Gadget.Settings.read("userName"); if(user != "") { setUserName(user); } } From settings.js document.onreadystatechange = function DoInit() { if(document.readyState=="complete") { var user = System.Gadget.Settings.read("userName"); if(user != "") { userBox.value = user; } } } // -------------------------------------------------------------------- // Handle the Settings dialog closed event. // event = System.Gadget.Settings.ClosingEvent argument. // -------------------------------------------------------------------- System.Gadget.onSettingsClosing = function(event) { if (event.closeAction == event.Action.commit) { var user = userBox.value; if(user != "") { System.Gadget.Settings.write("userName", user); } event.cancel = false; } }

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• How to encrypt information in aspx page?

  - by Jimmyc

  Hi all, I know it's a silly question but , My client asked for encrypting some information form their payment system to prevent user stealing personal information. The system is web-base and written by ASP.NET We have tried some annoying solution such as JavaScript no right-click or css-no-print but apparently my client didn't like it. so are there any commercial solution to encrypt information in aspx produced html pages? or someone can tell me how to pursuit my client to stop these "prevent stealing" idea in a web-base system?

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• Broken console in Maven project using Netbeans

  - by Maciek Sawicki

  Hi, I have strange problem with my Neatens+Maven installation. This is the shortest code to reproduce the problem: public class App { public static void main( String[] args ) { // Create a scanner to read from keyboard Scanner scanner = new Scanner (System.in); Scanner s= new Scanner(System.in); String param= s.next(); System.out.println(param); } } When I'm running it as Maven Project inside Netbeans console seems to be broken. It just ignores my input. It's look like infinitive loop in System.out.println(param);. However this project works fine when it's compiled as "Java Aplication" project. It also works O.K. if I build and run it from cmd. System info: Os: Vista IDE: Netbeans 6.8 Maven: apache-maven-2.2.1 //edit Built program (using mavean from Netbeans) works fine. I just can't test it using Net beans. And I think I forgot to ask the question ;). So of course my first question is: how can I fix this problem? And second is: Is it any workaround for this? For example configuring Netbeans to run external commend line app instead of using built in console.

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• Can't access resource from Generic.xaml within the Custom Control constructor.

  - by myermian

  I'm not sure why this is doing this, but I can't access the resource from within my constructor. XTabItem.cs using System; using System.ComponentModel; using System.Windows; using System.Windows.Controls; using System.Windows.Media; namespace MyStuff { public class XTabItem : TabItem { public static readonly DependencyProperty XTabItemNormalBackgroundProperty; /// <summary> /// Visual Property: Normal Background /// </summary> [Description("Determines the visibility of the close button."), Category("XTabItem Visual")] public Brush XTabItemNormalBackground { get { return (Brush)GetValue(XTabItemNormalBackgroundProperty); } set { SetValue(XTabItemNormalBackgroundProperty, value); } } static XTabItem() { DefaultStyleKeyProperty.OverrideMetadata(typeof(XTabItem), new FrameworkPropertyMetadata(typeof(XTabItem))); XTabItemNormalBackgroundProperty = DependencyProperty.Register("XTabItemNormalBackground", typeof(Brush), typeof(XTabItem), new UIPropertyMetadata(null)); } public XTabItem() { //XTabItemNormalBackground = (Brush)this.TryFindResource("XTabItemNormalBackgroundBrush"); //THIS DOES NOT WORK?? } public override void OnApplyTemplate() { base.OnApplyTemplate(); } } } Generic.xaml <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:MyStuff" xmlns:con="clr-namespace:MyStuff.Converters" > <SolidColorBrush x:Key="XTabItemNormalBackgroundBrush" Color="BlueViolet" /> <Style TargetType="{x:Type local:XTabItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:XTabItem}"> <!-- CONTENT TEMPLATE --> <Grid SnapsToDevicePixels="True"> <Border x:Name="_Border" Background="{Binding Path=XTabItemNormalBackground, RelativeSource={RelativeSource Mode=TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,0"> ... </Border> </Grid> </Style> </ResourceDictionary>

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• How to calculate the correct image size in out pdf using itextsharp ?

  - by MK

  I' am trying to add an image to a pdf using itextsharp, regardless of the image size it always appears to be mapped to a different greater size inside the pdf ? The image I add is 624x500 pixel (DPI:72): And here is a screen of the output pdf: And here is how I created the document: Document document = new Document(); System.IO.MemoryStream stream = new MemoryStream(); PdfWriter writer = PdfWriter.GetInstance(document, stream); document.Open(); System.Drawing.Image pngImage = System.Drawing.Image.FromFile("test.png"); Image pdfImage = Image.GetInstance(pngImage, System.Drawing.Imaging.ImageFormat.Png); document.Add(pdfImage); document.Close(); byte[] buffer = stream.GetBuffer(); FileStream fs = new FileStream("test.pdf", FileMode.Create); fs.Write(buffer, 0, buffer.Length); fs.Close(); Any idea why on how to calculate the correct size ?

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• Websphere CE issue in Eclipse EE

  - by Moev4

  I have downloaded the Websphere 2.1 App Server and verified that it works fine. I now wanted to use eclipse EE to manage it by adding the server to the server tab. Everything seems to work fine when going through the setup but when I go to start the server I get the error message: ERROR [GBeanInstanceState] Error while starting; GBean is now in the FAILED state: abstractName="org.apache.geronimo.framework/j2ee-system/2.1.4/car?ServiceModule=org.apache.geronimo.framework/j2ee-system/2.1.4/car,j2eeType=AttributeStore,name=AttributeManager" java.io.IOException: Unable to write manageable attribute files to directory /opt/IBM/WebSphere/AppServerCommunityEdition/var/config at org.apache.geronimo.system.configuration.LocalAttributeManager.ensureParentDirectory(LocalAttributeManager.java:573) at org.apache.geronimo.system.configuration.LocalAttributeManager.load(LocalAttributeManager.java:327) .... I was wondering if anyone had experience with this particular issue?

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• ASP.NET MVC : Good Replacement for User Control?

  - by David Lively

  I found user controls to be incredibly useful when working with ASP.NET webforms. By encapsulating the code required for displaying a control with the markup, creation of reusable components was very straightforward and very, very useful. While MVC provides convenient separation of concerns, this seems to break encapsulation (ie, you can add a control without adding or using its supporting code, leading to runtime errors). Having to modify a controller every time I add a control to a view seems to me to integrate concerns, not separate them. I'd rather break the purist MVC ideology than give up the benefits of reusable, packaged controls. I need to be able to include components similar to webforms user controls throughout a site, but not for the entire site, and not at a level that belongs in a master page. These components should have their own code not just markup (to interact with the business layer), and it would be great if the page controller didn't need to know about the control. Since MVC user controls don't have codebehind, I can't see a good way to do this. Update FINALLY, a good (and, in retrospect, obvious) way to accomplish this. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; namespace K.ObjectModel.Controls { public class TestControl : ViewUserControl { protected override void Render(System.Web.UI.HtmlTextWriter writer) { writer.Write("Hello World"); base.Render(writer); } } } Create a new class which inherits ViewUserControl Override the .Render() method as shown above. Register the control via its associated ASCX as you would in a webForm: <%@ Register TagName="tn" TagPrefix="k" Src="~/Views/Navigation/LeftBar.ascx"%> Use the corresponding tag in whatever view or master page that you need: <k:tn runat="server"/> Make sure your .ascx inherits your new control: <%@ Control Language="C#" Inherits="K.ObjectModel.Controls.TestControl" %> Voila, you're up and running. This is tested with ASP.NET MVC 2, VS 2010 and .NET 4.0. Your custom tag references the ascx partial view, which inherits from the TestControl class. The control then overrides the Render() method, which is called to render the view, giving you complete control over the process from tag to output. Why does everyone try to make this so much harder than it has to be?

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• Set Masterpage from Global.asax in ASP.NET

  - by StefanE

  Hi, I want to set the Masterpage property in Global.asax. This is what I have done but I get a NullReferenceException on the first line. Any ideas how to do this? protected void Application_PreSendRequestContent(Object sender, EventArgs e) { System.Web.UI.Page page = System.Web.HttpContext.Current.Handler as System.Web.UI.Page; if (Session["lang"] == "eng") { page.MasterPageFile = "SideMasterPageEng.master"; } }

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• how to convert bitmap to intptr in C#

  - by carl

  code as fellow: Bitmap bmp = new Bitmap(e.width, e.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb); System.Drawing.Imaging.BitmapData data = bmp.LockBits(new Rectangle(0, 0, e.width, e.height), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb); int dataLength = e.width * e.height * 3; Win32.memcpy(data.Scan0, (IntPtr)e.data, (uint)dataLength); convertBitmapToIntptr(bmp);????? how to code in this function like convertBitmapToIntptr(bmp). who give me some idea. thank you very much.

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• how to do display text message from cellphone to textbox

  - by Jiggy Degamo

  I am just making a project automated polling system using sms but i just a beginner of serial communication i have seen a code on the net so i apply it as my guide just a simple text message and display it on the textbox it connects but the provlem is its didn't display on the textbox. here is the code below please help me why it didn't display and please give me a cite that have a tutorial of serial communication using vb.net Imports System.IO.Ports Public Class Form1 Dim inputData As String = "" Private WithEvents serialPort1 As New IO.Ports.SerialPort Public Event DataReceived As IO.Ports.SerialDataReceivedEventHandler Private Sub Form1_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed ' Close the Serial Port serialPort1.Close() End Sub Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 'Set values for some properties serialPort1.PortName = "COM10" serialPort1.BaudRate = 2400 SerialPort1.Parity = IO.Ports.Parity.None SerialPort1.DataBits = 8 SerialPort1.StopBits = IO.Ports.StopBits.One SerialPort1.Handshake = IO.Ports.Handshake.None SerialPort1.RtsEnable = True ' Open the Serial Port SerialPort1.Open() 'Writes data to the Serial Port output buffer If SerialPort1.IsOpen = True Then SerialPort1.Write("MicroCommand") End If End Sub ' Receive data from the Serial Port 'Show received data on UI controls and do something Public Sub DoUpdate() TextBox1.Text = TextBox1.Text & inputData End Sub Private Sub serialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles serialPort1.DataReceived inputData = serialPort1.ReadExisting 'or serialPort1.ReadLine Me.Invoke(New EventHandler(AddressOf DoUpdate)) End Sub End Class

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• Requested Service not found

  - by mathirengasamy

  I have an windows service application with which works on remoting.That is used to display the ballontip. sometime it displays this error... Exception :Requested Service not foundInner Exception : Stack Trace : Server stack trace: at System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) at Baloontip.clsBaloonTool.Messagebox(String Message) anybody help me..thanks in advance

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• How to sniff local outgoing network traffic in .NET without using PCap?

  - by SeveQ

  Hi there, I'd like to somehow hook into the local system's network stack to capture outgoing network packets without using Winpcap. Unfortunately it tends to crash my system every now and then. Is there a way to "sniff" outgoing traffic of the local system from a user space process written in a .NET language? Thanks a lot! Hendrik

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• A good approach to db planing for reporting service

  - by Itay Moav

  The scenario: Big system (~200 tables). 60,000 users. Complex reports that will require me to do multiple queries for each report and even those will be complex queries with inner queries all over the place + some processing in PHP. I have seen an approach, which I am not sure about: Having one centralized, de-normalized, table that registers any activity in the system which is reportable. This table will hold mostly foreign keys, so she should be fairly compact and fast. So, for example (My system is a virtual learning management system), A user enrolls to course, the table stores the user id, date, course id, organization id, activity type (enrollment). Of course I also store this data in a normalized DB, which the actual application uses. Pros I see: easy, maintainable queries and code to process data and fast retrieval. Cons: there is a danger of the de-normalized table to be out of sync with the real DB. Is this approach worth considering, or (preferably from experience) is total $#%#%t?

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• Is it OK to pass SQLCommand as a parameter?

  - by TooFat

  I have a Business Layer that passes a Conn string and a SQLCommand to a Data Layer like so public void PopulateLocalData() { System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(); cmd.CommandType = System.Data.CommandType.StoredProcedure; cmd.CommandText = "usp_PopulateServiceSurveyLocal"; DataLayer.DataProvider.ExecSQL(ConnString, cmd); } The DataLayer then just executes the sql like so public static int ExecSQL(string sqlConnString, System.Data.SqlClient.SqlCommand cmd) { int rowsAffected; using (SqlConnection conn = new SqlConnection(sqlConnString)) { conn.Open(); cmd.Connection = conn; rowsAffected = cmd.ExecuteNonQuery(); cmd.Dispose(); } return rowsAffected; } Is it OK for me to pass the SQLCommand as a parameter like this or is there a better more accepted way of doing it. One of my concerns is if an error occurs when executing the query the cmd.dispose line will never execute. Does that mean it will continue to use up memory that will never be released?

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• WF -- how do I use a custom activity without creating it in a separate Workflow Activity Library?

  - by Kevin Craft

  I am trying to accomplish something that seems like it should be very simple. I have a State Machine Workflow Console Application with a workflow in it. I have created a custom activity for it. This activity will NEVER be used ANYWHERE ELSE. I just want to use this activity on my workflow, but: It does not appear in the toolbox. I cannot drag it from the Solution Explorer onto the workflow designer. I absolutely do not want to create a separate State Machine Workflow Activity Library, since that will just clutter my solution. Like I said, I will never use this activity in any other project, so I would like to keep it confined to this one...but I just can't figure out how to get it onto the designer! Am I going crazy!? Here is the code for the activity: public partial class GameSearchActivity: Activity { public GameSearchActivity() { InitializeComponent(); } public static DependencyProperty QueryProperty = System.Workflow.ComponentModel.DependencyProperty.Register("Query", typeof(string), typeof(GameSearchActivity)); [Description("Query")] [Category("Dependency Properties")] [Browsable(true)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)] public string Query { get { return ((string)(base.GetValue(GameSearchActivity.QueryProperty))); } set { base.SetValue(GameSearchActivity.QueryProperty, value); } } public static DependencyProperty ResultsProperty = System.Workflow.ComponentModel.DependencyProperty.Register("Results", typeof(string), typeof(GameSearchActivity)); [Description("Results")] [Category("Dependency Properties")] [Browsable(true)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)] public IEnumerable<Game_GamePlatform> Results { get { return ((IEnumerable<Game_GamePlatform>)(base.GetValue(GameSearchActivity.ResultsProperty))); } set { base.SetValue(GameSearchActivity.ResultsProperty, value); } } protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext) { IDataService ds = executionContext.GetService<IDataService>(); Results = ds.SearchGames(Query); return ActivityExecutionStatus.Closed; } } Thanks. EDIT: OK, so I've discovered that if I change the project type from Console Application to Class Library, the custom activity appears in the toolbox. However, this is not acceptable. It needs to be a Console/Windows Application. Anyone know a way around this?

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• C#: how to update winform from thread?

  - by JackN

  A C# thread (Read()) causes System.NotSupportedException when it tries to update a winform based on received content. The full error message is Read() System.NotSupportedException: An error message cannot be displayed because an optional resource assembly containing it cannot be found at Microsoft.AGL.Common.MISC.HandelAr() at System.Windows.Forms.ProgressBar._SetInfo() at System.Windows.Forms.ProgressBar.set_Value() at ...ProcessStatus() at ...Read() The Build/Target Environment is: Microsoft.NET\SDK\CompactFramework\v2.0\WindowsCE. Is the problem writing to the ProgressBar from a Thread? If so, what is the correct C#/winforms method to update a ProgressBar from a Thread? In this application the Read() Thread is continuous: it is started when the application starts and runs forever. void ProcessStatus(byte[] status) { Status.Speed = status[5]; var Speed = Status.Speed/GEAR_RATIO; Status.Speed = (int) Speed; progressBarSpeed.Value = Status.Speed; ...

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• Can't draw to a pictureBox in a loop

  - by Jason94

  I have a List<Point> where Point contains X and Y. What i want is to loop a list like that and draw a line point to point, i do so by: foreach (List<Point> wps in map.waypoints) { System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Black); System.Drawing.Graphics formGraphics = this.pictureBox1.CreateGraphics(); Point startPos = new Point(wps[0].X, wps[0].Y); foreach (Point p in wps) { formGraphics.DrawLine(myPen, startPos.X, startPos.Y, p.X, p.Y); startPos = p; } myPen.Dispose(); formGraphics.Dispose(); } BUT nothing gets drawn! I did the same with the on_click event to the pictureBox but instead if a looping some Points ive just used mouse X and Y. I have verified the lists of points that they dont contain rubish :D

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• Nhibernate - Getting Exception when run a simple join query

  - by Muhammad Akhtar

  hi, I am getting issue when I run sql Query having inner join, here is what I am doing very simple ISession session = NHibernateHelper.GetCurrentSession(); string query = string.Format("select Documents.TypeId from Documents inner join DocumentTrackingItems on Documents.Id = DocumentTrackingItems.DocumentId WHERE DocumentTrackingItems.ItemStepId = {0} order by Documents.TypeId asc", 13); System.Collections.ArrayList document = (System.Collections.ArrayList)session.CreateSQLQuery(query, "document", typeof(Document)).List(); I am getting this exception Exception Details: System.IndexOutOfRangeException: Id what's wrong in my query? --- thanks

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• Sending email using Java, connecting to a gmail host hangs

  - by Tot

  I would like to send emails via Java code. I added in my library the following .JARs: log4j.jar, smtp.jar, mailapi.jar,ctivation.jar. And my Java class looks like this: import java.util.Properties; import javax.mail.*; import javax.mail.internet.*; public class SendEmail { public static void main(String [] args) { String to = "[email protected]"; String from = "[email protected]"; String host = "smtp.gmail.com"; Properties properties = System.getProperties(); properties.setProperty("mail.smtp.host", host); properties.setProperty("mail.smtp.starttls.enable", "true"); properties.setProperty("mail.smtp.auth", "true"); SmtpAuthenticator authentication = new SmtpAuthenticator(); javax.mail.Message msg = new MimeMessage(Session .getInstance(properties, authentication)); try { msg.setFrom(new InternetAddress(from)); msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to)); msg.setSubject("Subject"); msg.setText("Working fine..!"); System.out.println("fine1 !!"); Transport transport = Session.getDefaultInstance( properties , null).getTransport("smtp"); System.out.println("fine2 !!"); transport.connect("smtp.gmail.com" , 465 , "username", "password"); System.out.println("fine3 !!"); Transport.send(msg); System.out.println("fine!!"); } catch(Exception exc) { System.out.println(exc); } } } My SmtpAuthenticator class: import javax.mail.Authenticator; import javax.mail.PasswordAuthentication; public class SmtpAuthenticator extends Authenticator { public SmtpAuthenticator() { super(); } @Override public PasswordAuthentication getPasswordAuthentication() { String username = "user"; String password = "password"; if ((username != null) && (username.length() > 0) && (password != null) && (password.length() > 0)) { return new PasswordAuthentication(username, password); } return null; } } When i run my Java application class it prints: fine1 !! fine2 !! And it hangs. How can I get rid of this problem?

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• ASP.NET masterpage public variables error

  - by eugeneK

  I have public variable 'MessagePlaceholder' on MasterPage and a Class that accesses this property like that setting it's value to string from getMessage(); ((HttpContext.Current.Handler as System.Web.UI.Page).Master as MasterPage).MessagePlaceholder = getMessage(); which gives me an error like this one Error 3 'System.Web.UI.MasterPage' does not contain a definition for 'MessagePlaceholder' and no extension method 'MessagePlaceholder' accepting a first argument of type 'System.Web.UI.MasterPage' could be found (are you missing a using directive or an assembly reference?) What should i do ?

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