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  • drag to pan on an UserControl

    - by Matías
    Hello, I'm trying to build my own "PictureBox like" control adding some functionalities. For example, I want to be able to pan over a big image by simply clicking and dragging with the mouse. The problem seems to be on my OnMouseMove method. If I use the following code I get the drag speed and precision I want, but of course, when I release the mouse button and try to drag again the image is restored to its original position. using System.Drawing; using System.Windows.Forms; namespace Testing { public partial class ScrollablePictureBox : UserControl { private Image image; private bool centerImage; public Image Image { get { return image; } set { image = value; Invalidate(); } } public bool CenterImage { get { return centerImage; } set { centerImage = value; Invalidate(); } } public ScrollablePictureBox() { InitializeComponent(); SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true); Image = null; AutoScroll = true; AutoScrollMinSize = new Size(0, 0); } private Point clickPosition; private Point scrollPosition; protected override void OnMouseDown(MouseEventArgs e) { base.OnMouseDown(e); clickPosition.X = e.X; clickPosition.Y = e.Y; } protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if (e.Button == MouseButtons.Left) { scrollPosition.X = clickPosition.X - e.X; scrollPosition.Y = clickPosition.Y - e.Y; AutoScrollPosition = scrollPosition; } } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.FillRectangle(new Pen(BackColor).Brush, 0, 0, e.ClipRectangle.Width, e.ClipRectangle.Height); if (Image == null) return; int centeredX = AutoScrollPosition.X; int centeredY = AutoScrollPosition.Y; if (CenterImage) { //Something not relevant } AutoScrollMinSize = new Size(Image.Width, Image.Height); e.Graphics.DrawImage(Image, new RectangleF(centeredX, centeredY, Image.Width, Image.Height)); } } } But if I modify my OnMouseMove method to look like this: protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if (e.Button == MouseButtons.Left) { scrollPosition.X += clickPosition.X - e.X; scrollPosition.Y += clickPosition.Y - e.Y; AutoScrollPosition = scrollPosition; } } ... you will see that the dragging is not smooth as before, and sometimes behaves weird (like with lag or something). What am I doing wrong? I've also tried removing all "base" calls on a desperate movement to solve this issue, haha, but again, it didn't work. Thanks for your time.

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  • Is READ UNCOMMITTED / NOLOCK safe in this situation?

    - by Ben Challenor
    I know that snapshot isolation would fix this problem, but I'm wondering if NOLOCK is safe in this specific case so that I can avoid the overhead. I have a table that looks something like this: drop table Data create table Data ( Id BIGINT NOT NULL, Date BIGINT NOT NULL, Value BIGINT, constraint Cx primary key (Date, Id) ) create nonclustered index Ix on Data (Id, Date) There are no updates to the table, ever. Deletes can occur but they should never contend with the SELECT because they affect the other, older end of the table. Inserts are regular and page splits to the (Id, Date) index are extremely common. I have a deadlock situation between a standard INSERT and a SELECT that looks like this: select top 1 Date, Value from Data where Id = @p0 order by Date desc because the INSERT acquires a lock on Cx (Date, Id; Value) and then Ix (Id, Date), but the SELECT acquires a lock on Ix (Id, Date) and then Cx (Date, Id; Value). This is because the SELECT first seeks on Ix and then joins to a seek on Cx. Swapping the clustered and non-clustered index would break this cycle, but it is not an acceptable solution because it would introduce cycles with other (more complex) SELECTs. If I add NOLOCK to the SELECT, can it go wrong in this case? Can it return: More than one row, even though I asked for TOP 1? No rows, even though one exists and has been committed? Worst of all, a row that doesn't satisfy the WHERE clause? I've done a lot of reading about this online, but the only reproductions of over- or under-count anomalies I've seen (one, two) involve a scan. This involves only seeks. Jeff Atwood has a post about using NOLOCK that generated a good discussion. I was particularly interested in a comment by Rick Townsend: Secondly, if you read dirty data, the risk you run is of reading the entirely wrong row. For example, if your select reads an index to find your row, then the update changes the location of the rows (e.g.: due to a page split or an update to the clustered index), when your select goes to read the actual data row, it's either no longer there, or a different row altogether! Is this possible with inserts only, and no updates? If so, then I guess even my seeks on an insert-only table could be dangerous. Update: I'm trying to figure out how snapshot isolation works. It seems to be row-based, where transactions read the table (with no shared lock!), find the row they are interested in, and then see if they need to get an old version of the row from the version store in tempdb. But in my case, no row will have more than one version, so the version store seems rather pointless. And if the row was found with no shared lock, how is it different to just using NOLOCK?

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  • casting variables to movie clip

    - by user16458
    How i can convert gecko object to a movie clip function finish(boxname, arrayname:Array):void { for each (var item:String in arrayname) { trace(boxname+"_"+item); var gecko:MovieClip = (boxname+"_"+item) as MovieClip ; trace(typeof(gecko)); gecko.gotoAndPlay("glow"); } } i get the following error high_hsymbol_1 object TypeError: Error #1009: Cannot access a property or method of a null object reference. at quizz_fla::MainTimeline/finish() at quizz_fla::MainTimeline/dropIt()

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  • Protobuf-net Deserialize Open Street Maps

    - by jonperl
    For the life of me I cannot deserialize the protobuf file from Open Street Maps. I am trying to deserialize the following extract: http://download.geofabrik.de/osm/north-america/us-northeast.osm.pbf to get Nodes and I am using http://code.google.com/p/protobuf-net/ as the library. I have tried to deserialize a bunch of different objects but they all come up null. The proto files can be found here: http://trac.openstreetmap.org/browser/applications/utils/export/osm2pgsql/protobuf Any suggestions?

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  • ALTER TABLE error

    - by Travis
    Can someone explain to me why I am receiving the following error? I want to rename the column "exerciseID" to "ID" in a mysql table using the following syntax. ALTER TABLE `exercises` CHANGE `exerciseID` `ID` INT( 11 ) NOT NULL AUTO_INCREMENT However I receive the following error: MySQL said: #1025 - Error on rename of './balance/#sql-de_110e' to './balance/exercises' (errno: 150) Any suggestions would be much appreciated

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  • Minimizing all open windows in C#

    - by Charlie Somerville
    I saw this C++ code on a forum which minimizes all open windows #define MIN_ALL 419 #define MIN_ALL_UNDO 416 int main(int argc, char* argv[]) { HWND lHwnd = FindWindow("Shell_TrayWnd",NULL); SendMessage(lHwnd,WM_COMMAND,MIN_ALL,0); Sleep(2000); SendMessage(lHwnd,WM_COMMAND,MIN_ALL_UNDO,0); return 0; } How can I access the FindWindow and SendMessage API function and the HWND type in C#.net?

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  • SQl function in android

    - by rui.pereira
    Cursor cursor = db.rawQuery("SELECT COUNT(rat) FROM "+ TABLE_NAME_EXTRA +" apkid=\""+apkid, null); cursor.moveToFirst(); int somatotal = cursor.getInt(0); I'm trying to do a SQL function like count and sum, but this code returns a exception saying "emptyvalues". anyone know why?

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  • How can I configure a Factory with the possible providers?

    - by Jonathas Costa
    I have three assemblies: "Framework.DataAccess", "Framework.DataAccess.NHibernateProvider" and "Company.DataAccess". Inside the assembly "Framework.DataAccess", I have my factory (with the wrong implementation of discovery): public class DaoFactory { private static readonly object locker = new object(); private static IWindsorContainer _daoContainer; protected static IWindsorContainer DaoContainer { get { if (_daoContainer == null) { lock (locker) { if (_daoContainer != null) return _daoContainer; _daoContainer = new WindsorContainer(new XmlInterpreter()); // THIS IS WRONG! THIS ASSEMBLY CANNOT KNOW ABOUT SPECIALIZATIONS! _daoContainer.Register( AllTypes.FromAssemblyNamed("Company.DataAccess") .BasedOn(typeof(IReadDao<>)).WithService.FromInterface(), AllTypes.FromAssemblyNamed("Framework.DataAccess.NHibernateProvider") .BasedOn(typeof(IReadDao<>)).WithService.Base()); } } return _daoContainer; } } public static T Create<T>() where T : IDao { return DaoContainer.Resolve<T>(); } } This assembly also defines the base interface for data access IReadDao: public interface IReadDao<T> { IEnumerable<T> GetAll(); } I want to keep this assembly generic and with no references. This is my base data access assembly. Then I have the NHibernate provider's assembly, which implements the above IReadDao using NHibernate's approach. This assembly references the "Framework.DataAccess" assembly. public class NHibernateDao<T> : IReadDao<T> { public NHibernateDao() { } public virtual IEnumerable<T> GetAll() { throw new NotImplementedException(); } } At last, I have the "Company.DataAccess" assembly, which can override the default implementation of NHibernate provider and references both previously seen assemblies. public interface IProductDao : IReadDao<Product> { Product GetByName(string name); } public class ProductDao : NHibernateDao<Product>, IProductDao { public override IEnumerable<Product> GetAll() { throw new NotImplementedException("new one!"); } public Product GetByName(string name) { throw new NotImplementedException(); } } I want to be able to write... IRead<Product> dao = DaoFactory.Create<IRead<Product>>(); ... and then get the ProductDao implementation. But I can't hold inside my base data access any reference to specific assemblies! My initial idea was to read that from a xml config file. So, my question is: How can I externally configure this factory to use a specific provider as my default implementation and my client implementation?

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  • JTextField only shows as a slit Using GridBagLayout, need help

    - by Bill Caffery
    Hi thank you in advance for any help, I'm trying to build a simple program to learn GUI's but when I run the code below my JTextFields all show as a slit thats not large enough for even one character. cant post an image but it would look similar to: Label [| where [| is what the text field actually looks like import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.*; public class lab6start implements ActionListener { JTextField custNameTxt; JTextField acctNumTxt; JTextField dateCreatedTxt; JButton checkingBtn; JButton savingsBtn; JTextField witAmountTxt; JButton withDrawBtn; JTextField depAmountTxt; JButton depositBtn; lab6start() { JFrame bankTeller = new JFrame("Welcome to Suchnsuch Bank"); bankTeller.setSize(500, 280); bankTeller.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); bankTeller.setResizable(false); bankTeller.setLayout(new GridBagLayout()); bankTeller.setBackground(Color.gray); //bankTeller.getContentPane().add(everything, BorderLayout.CENTER); GridBagConstraints c = new GridBagConstraints(); JPanel acctInfo = new JPanel(new GridBagLayout()); c.gridx = 0; c.gridy = 0; c.gridwidth = 2; c.gridheight = 1; c.insets = new Insets(5,5,5,5); bankTeller.add(acctInfo, c); c.gridwidth = 1; //labels //name acct# balance interestRate dateCreated JLabel custNameLbl = new JLabel("Name"); c.gridx = 0; c.gridy = 0; c.insets = new Insets(0,0,0,0); acctInfo.add(custNameLbl, c); custNameTxt = new JTextField("customer name",50); c.gridx = 1; c.gridy = 0; c.insets = new Insets(5,5,5,5); acctInfo.add(custNameTxt,c); custNameTxt.requestFocusInWindow(); JLabel acctNumLbl = new JLabel("Account Number"); c.gridx = 0; c.gridy = 1; c.insets = new Insets(5,5,5,5); acctInfo.add(acctNumLbl,c); acctNumTxt = new JTextField("account number"); c.gridx = 1; c.gridy = 1; c.insets = new Insets(5,5,5,5); acctInfo.add(acctNumTxt,c); JLabel dateCreatedLbl = new JLabel("Date Created"); c.gridx = 0; c.gridy = 2; c.insets = new Insets(5,5,5,5); acctInfo.add(dateCreatedLbl,c); dateCreatedTxt = new JTextField("date created"); c.gridx = 1; c.gridy = 2; c.insets = new Insets(5,5,5,5); acctInfo.add(dateCreatedTxt,c); //buttons checkingBtn = new JButton("Checking"); c.gridx = 0; c.gridy = 3; c.insets = new Insets(5,5,5,5); acctInfo.add(checkingBtn,c); savingsBtn = new JButton("Savings"); c.gridx = 1; c.gridy = 3; c.insets = new Insets(5,5,5,5); acctInfo.add(savingsBtn,c); //end of info panel JPanel withDraw = new JPanel(new GridBagLayout()); c.gridx = 0; c.gridy = 1; c.insets = new Insets(5,5,5,5); bankTeller.add(withDraw, c); witAmountTxt = new JTextField("Amount to Withdraw:"); c.gridx = 0; c.gridy = 0; c.insets = new Insets(5,5,5,5); withDraw.add(witAmountTxt,c); withDrawBtn = new JButton("Withdraw"); c.gridx = 1; c.gridy = 0; c.insets = new Insets(5,5,5,5); withDraw.add(withDrawBtn,c); //add check balance //end of withdraw panel JPanel deposit = new JPanel(new GridBagLayout()); c.gridx = 1; c.gridy = 1; c.insets = new Insets(5,5,5,5); bankTeller.add(deposit, c); depAmountTxt = new JTextField("Amount to Deposit"); c.gridx = 0; c.gridy = 0; c.insets = new Insets(5,5,5,5); deposit.add(depAmountTxt,c); depositBtn = new JButton("Deposit"); c.gridx = 1; c.gridy = 0; c.insets = new Insets(5,5,5,5); deposit.add(depositBtn,c); bankTeller.setVisible(true); // action/event checkingBtn.addActionListener(this); savingsBtn.addActionListener(this); withDrawBtn.addActionListener(this); depositBtn.addActionListener(this); } public void actionPerformed(ActionEvent e) { if (e.getSource()== checkingBtn) { witAmountTxt.requestFocusInWindow(); //checking newcheck = new checking(); } } } /* String accountType = null; accountType = JOptionPane.showInputDialog(null, "Checking or Savings?"); if (accountType.equalsIgnoreCase("checking")) { checking c_Account = new checking(); } else if (accountType.equalsIgnoreCase("savings")) { // savings s_Account = new savings(); } else { JOptionPane.showMessageDialog(null, "Invalid Selection"); } */

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  • Validating against a Schema with JAXB

    - by fwgx
    I've been looking for solutions to this problem for far too long considering how easy it sounds so I've come for some help. I have an XML Schema which I have used with xjc to create my JAXB binding. This works fine when the XML is well formed. Unfortunately it also doesn't complain when the XML is not well formed. I cannot figure out how to do proper full validation against the schema when I try to unmarshall an XML file. I have managed to use a ValidationEventCollector to handle events, which works for XML parsing errors such as mismatched tags but doesn't raise any events when there is a tag that is required but is completely absent. From what I have seen validation can be done againsta schema, but you must know the path to the schema in order to pass it into the setSchema() method. The problem I have is that the path to the schema is stored in the XML header and I can't knwo at run time where the schema is going to be. Which is why it's stored in the XML file: <?xml version="1.0" encoding="utf-8"?> <DDSSettings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="/a/big/long/path/to/a/schema/file/DDSSettings.xsd"> <Field1>1</Field1> <Field2>-1</Field2> ...etc Every example I see uses setValidating(true), which is now deprecated, so throws an exception. This is the Java code I have so far, which seems to only do XML validation, not schema validation: try { JAXBContext jc = new JAXBContext() { private final JAXBContext jaxbContext = JAXBContext.newInstance("blah"); @Override public Unmarshaller createUnmarshaller() throws JAXBException { Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); ValidationEventCollector vec = new ValidationEventCollector() { @Override public boolean handleEvent(ValidationEvent event) throws RuntimeException { ValidationEventLocator vel = event.getLocator(); if (event.getSeverity() == event.ERROR || event.getSeverity() == event.FATAL_ERROR) { String error = "XML Validation Exception: " + event.getMessage() + " at row: " + vel.getLineNumber() + " column: " + vel.getColumnNumber(); System.out.println(error); } m_unmarshallingOk = false; return false; } }; unmarshaller.setEventHandler(vec); return unmarshaller; } @Override public Marshaller createMarshaller() throws JAXBException { throw new UnsupportedOperationException("Not supported yet."); } @Override @SuppressWarnings("deprecation") public Validator createValidator() throws JAXBException { throw new UnsupportedOperationException("Not supported yet."); } }; Unmarshaller unmarshaller = jc.createUnmarshaller(); m_ddsSettings = (com.ultra.DDSSettings)unmarshaller.unmarshal(new File(xmlfileName)); } catch (UnmarshalException ex) { Logger.getLogger(UniversalDomainParticipant.class.getName()).log( Level.SEVERE, null, ex); } catch (JAXBException ex) { Logger.getLogger(UniversalDomainParticipant.class.getName()).log( Level.SEVERE, null, ex); } So what is the proper way to do this validation? I was expecting there to be a validate() method on the JAXB generated classes, but I guess that would be too simple for Java.

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  • Getting MySQL record count with C#

    - by she hates me
    Hello, I would like to know how can I get record count of a query with C#. Here is the code that I use.. MySqlDataReader recordset = null; query = new MySqlCommand("SELECT * FROM test ORDER BY type_ID ASC", this.conn); recordset = query.ExecuteReader(); while (recordset.Read()) { result.Add(recordset["type_ID"].ToString()); } return result;

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  • Calling 32 bit unmanaged dlls from C# randomly failing

    - by Bert
    Hi, I'm having an issue when calling 32 bit delphi dll's from c# web site. The code generally runs fine, but occasionally I get an error Unable to load DLL '': The specified module could not be found. (Exception from HRESULT: 0x8007007E). This issue persists until I recycle the app pool for the site, and then it works fine again. On the same server, there is also a web service that is calling the same set of dlls. This web service doesn't seem to have the same issue that the web site has. Both applications are using .net framework 3.5, separate app pools on IIS. Here is the code I'm using to wrap the dlls: public sealed class Mapper { static Mapper instance = null; [DllImport("kernel32.dll")] private static extern bool SetDllDirectory(string lpPathName); private Mapper() { SetDllDirectory(ConfigManager.Path); } public static Mapper Instance { get { if (instance == null) { instance = new Mapper(); } return instance; } } public int Foo(string bar, ref double val) { return Loader.Foo(bar, ref val); } } public static class Loader { [DllImport("some.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Unicode, EntryPoint = "foo")] public static extern int Foo(string bar, ref double val); } Then I call it like this: double val = 0.0; Mapper.Instance.Foo("bar", ref val); Any ideas as to why it would "randomly" Unable to load DLL '': The specified module could not be found. (Exception from HRESULT: 0x8007007E). The other problem is that I haven't been able to replicate the issue in the development environment. I thought that due to 2 applications calling the same dlls, that there could be some locks occurring. To replicate this, I created an app that spawned multiple threads and repeatedly called the 32bit dlls, and then used the web site to call these same dlls. I still couldn't replicate the issue. Some possible fixes that I can think of: Wrap the 32 bit dlls in web service (because the webservice doesn't seem to suffer from the same problem). But this may be worthless if it turns out that the web service also fails. Set up state server for the session state and periodically recycle the app pool for the site.This isn't fixing the problem, only avoiding it. Wrap the dll's in exe, and call that exe. Then I shouldn't get the same issue. But this also seems like a hacky solution. Implement the mapper class differently ? But how else should I be doing the call? The other draw back is that other applications are using this mapper, so I'd need to change there code too. Thanks

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  • How do I make sure no handlers are attached to an event?

    - by Edward Tanguay
    I am adding an event handler like this: theImage.MouseMove += new MouseEventHandler(theImage_MouseMove); but in my application, this code gets run every time the page is shown, so I want to attach the event handler only once, but how can I tell if a handler has been set yet or not, something like this: if(theImage.MouseMove == null) //error theImage.MouseMove += new MouseEventHandler(theImage_MouseMove);

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  • How to make a composite Zend Form Element that includes a Dojo Field

    - by Joe
    I used the zendcast video to get me this far. The form is properly displayed. However, I need to change the display order box into a number box of zend dojo type. I cannot figure it out. Even help with examples would be great. <?php class My_View_Helper_CategoryDetailElement extends Zend_View_Helper_FormElement { protected $html = ''; public function CategoryDetailElement($name, $value = null, $attribs = null) { $type = $description = $displayOrder = $time = ''; if($value) { $type = $value->type; $description = $value->description; $displayOrder = $value->displayOrder; $time = $value->time; } $helper = new Zend_View_Helper_FormText(); $helper->setView($this->view); $helper_label = new Zend_View_Helper_FormLabel(); $helper_label->setView($this->view); $helper_select = new Zend_View_Helper_FormSelect(); $helper_select->setView($this->view); $helper_textarea = new Zend_View_Helper_FormTextarea(); $helper_textarea->setView($this->view); $this->html .= $helper_label->formLabel($name . '[type]', 'Type: ', array()); $this->html .= $helper_select->formSelect($name . '[type]', $type, array(), array('individual'=>'individual', 'team'=>'team')); $this->html .= "<br />"; $this->html .= $helper_label->formLabel($name . '[description]', 'Description: ', array()); $this->html .= $helper_textarea->formTextarea($name . '[description]', $description, array()); $this->html .= "<br />"; $this->html .= $helper_label->formLabel($name . '[displayOrder]', 'Display Order: ', array()); $this->html .= $helper->formText($name . '[displayOrder]', $displayOrder, array()); $this->html .= "<br />"; $this->html .= $helper_label->formLabel($name . '[time]', 'Time: ', array()); $this->html .= $helper->formText($name . '[time]', $time, array()); return $this->html; } } ?>

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  • Return a value if no rows are found SQL

    - by Matt
    Here's my simple query. If I query a record that doesn't exist then I will get nothing returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplist method to account for no records. SELECT CASE WHEN S.Id IS NOT NULL AND S.Status = 1 AND (S.WebUserId = @WebUserId OR S.AllowUploads = 1) THEN 1 ELSE 0 END AS [Value] FROM Sites S WHERE S.Id = @SiteId

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  • Order SimpleXMLElement by element

    - by ron
    Hi everyone I need to order a SimpleXMLElement by a node called padre like this. $xml = new SimpleXMLElement('sitemap.xml',null,true); sort($xml, "padre" ); foreach($xml as $url ) { echo "loc}' title='".rescue_name($url-loc)."'".rescue_name($url-loc)." {$url-padre}"; } I don't know why is not working please let me know what is my error. Thanks in advance

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  • CoGetClassObject gives many First-chance exceptions in ATL project. Should I worry?

    - by Andrew
    Hello, I have written a COM object that in turn uses a thrid party ActiveX control. In my FinalConstruct() for my COM object, I instantiate the ActiveX control with the follow code: HRESULT hRes; LPCLASSFACTORY2 pClassFactory; hRes = CoInitializeEx(NULL,COINIT_APARTMENTTHREADED); bool bTest = SUCCEEDED(hRes); if (!bTest) return E_FAIL; if (SUCCEEDED(CoGetClassObject(__uuidof(SerialPortSniffer), CLSCTX_INPROC_SERVER, NULL, IID_IClassFactory2, (LPVOID *)(&pClassFactory)))) { ... more set up code When I step over the line if (SUCCEEDED(CoGetClassObject(__uuidof(SerialPortSniffer), ..., I get 20+ lines in the Output window stating: First-chance exception at 0x0523f82e in SillyComDriver.exe: 0xC0000005: Access violation writing location 0x00000000. I also get the lines: First-chance exception at 0x051e3f3d in SillyComDriver.exe: 0xC0000096: Privileged instruction. First-chance exception at 0x100ab9e6 in SillyComDriver.exe: 0xC000001D: Illegal Instruction. Notice these are first-chance exceptions. The program runs as expected I can access the third party methods/properties. Still, I'm left wondering why they are occurring. Perhaps my way of instantiating the ActiveX control (for which I want use of it's methods/properties and not it's GUI stuff) is incorrect? Besides the code I'm showing, I also put the line import "spsax.dll" no_namespace in the stdafx.h That's all the code necessary for my simple demo project. I noticed this problem because I had (inadvertently) set the "break on exceptions" options in my "real" project and it was breaking on this line. Once I removed it, it also works. If you're read this far thank you, and perhaps I can ask one other minor question. In my demo project, if I right click on SerialPortSniffer and "go to definition", it takes me to the file C:....\AppData\Local\Temp\spsax.tlh. Can someone explain that? Finally, in my "real" project, right clicking on SerialPortSniffer and going to difinition leads to "The symbol 'SerialPortSniffer' is not defined". It doesn't seem to affect the program though. Is there some setting I've messed up? By the way, all my code is written w/ VS2008. Thanks, Dave

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  • .NET: XDocument missing XDeclaration?

    - by JamesBrownIsDead
    When I write out this to the console, the output is missing the XDeclaration content. What gives? var map = new XDocument( new XDeclaration("1.0", "UTF-8", null), new XElement(SiteMap.Namespace + "urlset") ); Console.Write(map.ToString()); How do I get the XML for map including the <?xml...> declaration?

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  • Rewriting URLs with mod_rewrite

    - by Webby
    Hey guys, I'm currently rewriting urls from http://domain.com/profile/?u=10000017564881 this to this http://domain.com/profile/10000017564881 with the following rewrite RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*?)\/?$ index.php?u=$1 [L] However I'd like to optimize for seo a litte and go with : http://domain.com/profile/10000017564881/Anything-I-want-here Obviously the /Anything-I-want-here is just null ignored ... Any idea's guys? much appreciated

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  • How to bind gridview using linq/Entity Framework?

    - by Kay
    I need to bind GridView, I am using this code: ProductDBEntities db = new ProductPDBEntities(); var pro = from u in db.Products where u.PID == 1 select u; if (pro != null) { GridView1.DataSource = pro; GridView1.DataBind(); } and getting this error. System.InvalidOperationException: Sequence contains more than one element Can somebody please tell me what am I doin wrong?

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