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  • running code when two events have triggered

    - by Evert
    This is mostly a language-agnostic question. If I'm waiting for two events to complete (say, two IO events or http requests), what is the best pattern to deal with this. One thing I can think of is the following (pseudo js example). request1.onComplete = function() { req1Completed = true; eventsCompleted(); } request2.onComplete = function() { req2Completed = true; eventsCompleted(); } eventsCompleted = function() { if (!req1Completed || !req2Completed) return; // do stuff } Is this the most effective pattern, or are there more elegant ways to solve this issue?

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  • Introduction to Extended Events

    - by extended_events
    For those fighting with all the Extended Event terminology, let's step back and have a small overall Introduction to Extended Events. This post will give you a simplified end to end view through some of the elements in Extended Events. Before we start, let’s review the first Extented Events that we are going to use: -          Events: The SQL Server code is populated with event calls that, by default, are disabled. Adding events to a session enables those event calls. Once enabled, they will execute the set of functionality defined by the session. -          Target: This is an Extended Event Object that can be used to log event information. Also it is important to understand the following Extended Event concept: -          Session: Server Object created by the user that defines functionality to be executed every time a set of events happen.   It’s time to write a small “Hello World” using Extended Events. This will help understand the above terms. We will use: -          Event sqlserver. error_reported: This event gets fired every time that an error happens in the server. -          Target package0.asynchronous_file_target: This target stores the event data in disk. -          Session: We will create a session that sends all the error_reported events to the ring buffer. Before we get started, a quick note: Don’t run this script in a production environment. Even though, we are going just going to be raise very low severity user errors, we don't want to introduce noise in our servers. -- TRIES TO ELIMINATE PREVIOUS SESSIONS BEGIN TRY       DROP EVENT SESSION test_session ON SERVER END TRY BEGIN CATCH END CATCH GO   -- CREATES THE SESSION CREATE EVENT SESSION test_session ON SERVER ADD EVENT sqlserver.error_reported ADD TARGET package0.asynchronous_file_target -- CONFIGURES THE FILE TARGET (set filename = 'c:\temp\data1.xel' , metadatafile = 'c:\temp\data1.xem') GO   -- STARTS THE SESSION ALTER EVENT SESSION test_session ON SERVER STATE = START GO   -- GENERATES AN ERROR RAISERROR (N'HELLO WORLD', -- Message text.            1, -- Severity,            1, 7, 3, N'abcde'); -- Other parameters GO   -- STOPS LISTENING FOR THE EVENT ALTER EVENT SESSION test_session ON SERVER STATE = STOP GO   -- REMOVES THE EVENT SESSION FROM THE SERVER DROP EVENT SESSION test_session ON SERVER GO -- REMOVES THE EVENT SESSION FROM THE SERVER select CAST(event_data as XML) as event_data from sys.fn_xe_file_target_read_file ('c:\temp\data1*.xel','c:\temp\data1*.xem', null, null) This query will output the event data with our first hello world in the Extended Event format: <event name="error_reported" package="sqlserver" id="100" version="1" timestamp="2010-02-27T03:08:04.210Z"><data name="error"><value>50000</value><text /></data><data name="severity"><value>1</value><text /></data><data name="state"><value>1</value><text /></data><data name="user_defined"><value>true</value><text /></data><data name="message"><value>HELLO WORLD</value><text /></data></event> More on parsing event data in this post: Reading event data 101 Now let's move that lets move on to the other three Extended Event objects: -          Actions. This Extended Objects actions get executed before events are published (stored in buffers to be transferred to the targets). Currently they are used additional data (like the TSQL Statement related to an event, the session, the user) or generate a mini dump.   -          Predicates: Predicates express are logical expressions that specify what predicates to fire (E.g. only listen to errors with a severity greater than 16). This are composed of two Extended Objects: o   Predicate comparators: Defines an operator for a pair of values. Examples: §  Severity > 16 §  error_message = ‘Hello World!!’ o   Predicate sources: These are values that can be also used by the predicates. They are generic data that isn’t usually provided in the event (similar to the actions). §  Sqlserver.username = ‘Tintin’ As logical expressions they can be combined using logical operators (and, or, not).  Note: This pair always has to be first an event field or predicate source and then a value         Let’s do another small Example. We will trigger errors but we will use the ones that have severity >= 10 and the error message != ‘filter’. To verify this we will use the action sql_text that will attach the sql statement to the event data: -- TRIES TO ELIMINATE PREVIOUS SESSIONS BEGIN TRY       DROP EVENT SESSION test_session ON SERVER END TRY BEGIN CATCH END CATCH GO   -- CREATES THE SESSION CREATE EVENT SESSION test_session ON SERVER ADD EVENT sqlserver.error_reported       (ACTION (sqlserver.sql_text) WHERE severity = 2 and (not (message = 'filter'))) ADD TARGET package0.asynchronous_file_target -- CONFIGURES THE FILE TARGET (set filename = 'c:\temp\data2.xel' , metadatafile = 'c:\temp\data2.xem') GO   -- STARTS THE SESSION ALTER EVENT SESSION test_session ON SERVER STATE = START GO   -- THIS EVENT WILL BE FILTERED BECAUSE SEVERITY != 2 RAISERROR (N'PUBLISH', 1, 1, 7, 3, N'abcde'); GO -- THIS EVENT WILL BE FILTERED BECAUSE MESSAGE = 'FILTER' RAISERROR (N'FILTER', 2, 1, 7, 3, N'abcde'); GO -- THIS ERROR WILL BE PUBLISHED RAISERROR (N'PUBLISH', 2, 1, 7, 3, N'abcde'); GO   -- STOPS LISTENING FOR THE EVENT ALTER EVENT SESSION test_session ON SERVER STATE = STOP GO   -- REMOVES THE EVENT SESSION FROM THE SERVER DROP EVENT SESSION test_session ON SERVER GO -- REMOVES THE EVENT SESSION FROM THE SERVER select CAST(event_data as XML) as event_data from sys.fn_xe_file_target_read_file ('c:\temp\data2*.xel','c:\temp\data2*.xem', null, null)   This last statement will output one event with the following data: <event name="error_reported" package="sqlserver" id="100" version="1" timestamp="2010-03-05T23:15:05.481Z">   <data name="error">     <value>50000</value>     <text />   </data>   <data name="severity">     <value>2</value>     <text />   </data>   <data name="state">     <value>1</value>     <text />   </data>   <data name="user_defined">     <value>true</value>     <text />   </data>   <data name="message">     <value>PUBLISH</value>     <text />   </data>   <action name="sql_text" package="sqlserver">     <value>-- THIS ERROR WILL BE PUBLISHED RAISERROR (N'PUBLISH', 2, 1, 7, 3, N'abcde'); </value>     <text />   </action> </event> If you see more events, check if you have deleted previous event files. If so, please run   -- Deletes previous event files EXEC SP_CONFIGURE GO EXEC SP_CONFIGURE 'xp_cmdshell', 1 GO RECONFIGURE GO XP_CMDSHELL 'del c:\temp\data*.xe*' GO   or delete them manually.   More Info on Events: Extended Event Events More Info on Targets: Extended Event Targets More Info on Sessions: Extended Event Sessions More Info on Actions: Extended Event Actions More Info on Predicates: Extended Event Predicates Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Add Events to Windows Live Calendar in IE 8

    - by Asian Angel
    Do you have event dates that you need to make note of while browsing in Internet Explorer? Adding those events to your Live Calendar is easy to do with the Add Events to Windows Live Calendar accelerator. Adding Events to your Live Calendar To add the accelerator click on Add to Internet Explorer and then confirm the installation when the secondary window appears. For our example we chose the “estimated” availability date of Microsoft Office 2010 to the public. At the bottom of the pre-order page we found the date we were looking for. To add an event highlight the desired text (will become event description) and select the Add an Event to Windows Live Calendar listing in the context menu. A new tab will be opened where you can add any relevant details or make final tweaks to the description before saving the event. There is our new calendar event ready to send out a notification e-mail for the Office 2010 release. The Add Events to Windows Live Calendar accelerator speeds up the process of adding events to your calendar by getting you directly to the event form. Links Add the Add Events to Windows Live Calendar accelerator to Internet Explorer 8 Similar Articles Productive Geek Tips Sync Your Outlook and Google Calendar with Google Calendar SyncOverlay Calendars in Outlook 2007 (like Google Calendar does)Easily Add All Holidays To The Calendar in Outlook 2003Display your Google Calendar in Windows CalendarShare Outlook 2007 Calendars Through Microsoft Office Online Service TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Snagit 10 How to Forecast Weather, without Gadgets Outlook Tools, one stop tweaking for any Outlook version Zoofs, find the most popular tweeted YouTube videos Video preview of new Windows Live Essentials 21 Cursor Packs for XP, Vista & 7 Map the Stars with Stellarium

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  • Harnessing Business Events for Predictive Decision Making - part 1 / 3

    - by Sanjeev Sharma
    Businesses have long relied on data mining to elicit patterns and forecast future demand and supply trends. Improvements in computing hardware, specifically storage and compute capacity, have significantly enhanced the ability to store and analyze mountains of data in ever shrinking time-frames. Nevertheless, the reality is that data growth is outpacing storage capacity by a factor of two and computing power is still very much bounded by Moore's Law, doubling only every 18 months.Faced with this data explosion, businesses are exploring means to develop human brain-like capabilities in their decision systems (including BI and Analytics) to make sense of the data storm, in other words business events, in real-time and respond pro-actively rather than re-actively. It is more like having a little bit of the right information just a little bit before hand than having all of the right information after the fact. To appreciate this thought better let's first understand the workings of the human brain.Neuroscience research has revealed that the human brain is predictive in nature and that talent is nothing more than exceptional predictive ability. The cerebral-cortex, part of the human brain responsible for cognition, thought, language etc., comprises of five layers. The lowest layer in the hierarchy is responsible for sensory perception i.e. discrete, detail-oriented tasks whereas each of the above layers increasingly focused on assembling higher-order conceptual models. Information flows both up and down the layered memory hierarchy. This allows the conceptual mental-models to be refined over-time through experience and repetition. Secondly, and more importantly, the top-layers are able to prime the lower layers to anticipate certain events based on the existing mental-models thereby giving the brain a predictive ability. In a way the human brain develops a "memory of the future", some sort of an anticipatory thinking which let's it predict based on occurrence of events in real-time. A higher order of predictive ability stems from being able to recognize the lack of certain events. For instance, it is one thing to recognize the beats in a music track and another to detect beats that were missed, which involves a higher order predictive ability.Existing decision systems analyze historical data to identify patterns and use statistical forecasting techniques to drive planning. They are similar to the human-brain in that they employ business rules very much like mental-models to chunk and classify information. However unlike the human brain existing decision systems are unable to evolve these rules automatically (AI still best suited for highly specific tasks) and  predict the future based on real-time business events. Mistake me not,  existing decision systems remain vital to driving long-term and broader business planning. For instance, a telco will still rely on BI and Analytics software to plan promotions and optimize inventory but tap into business events enabled predictive insight to identify specifically which customers are likely to churn and engage with them pro-actively. In the next post, i will depict the technology components that enable businesses to harness real-time events and drive predictive decision making.

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  • BPM Standard Edition to start your BPM project

    - by JuergenKress
    Oracle have launched the new BPM Standard Edition. BPM Standard Edition is an entry level BPM offering designed to help organisations implement their first few processes in order to prove the value of BPM within their own organisation. Based on the highly regarded BPM Suite, BPM SE is a restricted use license that is licensed on a Named User basis. This new commercial offering gives Partners and Oracle the opportunity to address new markets and fast track adoption of Oracle BPM by starting small and proving the Return on Investment by working closely with our Customers. This is a great opportunity for Partners to use BPM SE as a core element of your own BPM ‘go to market’ value propositions. Please contact either Juergen Kress or Mike Connaughton if you would like to make these value propositions available to the Oracle Field Sales organisation and to advertise them on the EMEA BPM intranet. Click here to see the replay of webcast and download the slides here. Need BPM support? E-Mail: [email protected] Tel. 441189247673 Additional updated BPM material: Whitepaper: BPM10g Usage Guidelines - Design Practices to Facilitate Migration to BPM 12c (Partner & Oracle confidential) Article: 10 Ways to Tactical Business Success with BPM To access the documents please visit the SOA Community Workspace (SOA Community membership required) SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: BPM Standard Edition,BPM Suite,BPM,SOA Specialization award,SOA Community,Oracle SOA,Oracle BPM,BPM Community,OPN,Jürgen Kress

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  • OpenWorld General Session 2012: Middleware & JavaOne

    - by JuergenKress
    In this general session, listen how developers leverage new innovations in their applications and customers achieve their business innovation goals with Oracle Fusion Middleware. We uploaded the key Fusion Middleware presentations (ppt format) in our SOA Community Workspace OFM OOW2012.pptx BPM Preview of Oracle BPM PS6.ppt and (Oracle Partner confidential) Please visit our SOA Community Workspace (SOA Community membership required). Read our First feedback from our ACE Directors: Guido Schmutz: My presentations at Oracle OpenWorld 2012 Lucas Jellema: OOW 2012 – Larry Ellison’s Keynote Announcements: Exa, Cloud, Database And from Antony Reynolds Many tweets #soacommunity with the latest OOW information have been posted on twitter. The First impressions are posted on our facebook page. Thanks for the excellent Java One Summary from Amis JavaOne 2012: Strategy and Technical Keynote and Dustin JavaOne 2012: JavaOne Technical Keynote. As a summary JavaOne 2012 was a successful event and Java is back alive and more successful than ever before – make the future Java! IDC confirms it in their latest report: Java 2,5 years after the acquisition – IDC report“. As a result, Java made more significant advancements after the Sun acquisition than in the two and half years prior to the acquisition. The Java ecosystem is healthy and remains on a growing trajectory,” WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. BlogTwitterLinkedInMixForumWiki Technorati Tags: OOW,JavaOne,presentations,video,keynote,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • Do you want to become an Oracle certified Expert in WebLogic & ADF?

    - by JuergenKress
    Hands-on Bootcamps Training Roadshows FY14 free hands-on training for community members ADF & ADF Mobile Bootcamps & WebLogic Bootcamps. For all WebLogic & ADF experts, we offer 100 free vouchers worth $195 to become an Oracle certified expert. To receive a WebLogic & ADF voucher please send an e-mail with the screenshot of your WebLogic Server 12c PreSales Specialist or ADF 11g PreSales Specialist certificate to [email protected] including your Name, Company, e-mail and Country with the e-mail subject free WebLogic & ADF voucher! Or attend a local free "Test-Fest". WebLogic ADF Pre-Sales assessment (free online test) Preparation: WebLogic 12c PreSales Specialist (OPN account required – need help?) ADF 11g PreSales Specialist (OPN account required – need help?) Implementation assessment Preparation: WebLogic 12c Implementation Specialist WebLogic Bootcamp training material (Community membership required) WebLogic Knowledge Zone Overview ADF 11g Implementation Specialist ADF 11g bootcamp training material (Community membership required) ADF Knowledge Zone Overview Free vouchers are reserved for partners from Europe, Middle East and Africa. Any other countries please contact your local partner manager! Vouchers are only valid until quarter end! WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: education,Specialization,Implementation Specialist,OPN,OOW,Oracle OpenWorld,WebLogic,WebLogic Community,Oracle,Jürgen Kress

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  • Dynamically created LinkButton not firing any events

    - by Brent
    I'm customising the Group Headers on a Telerik RadGrid by injecting a LinkButton into it during the ItemDataBound event. The button renders perfectly, but I can't get it to hit any event handlers. Here is the code for the button creation: Private Sub rgWorkRequestItemCosts_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles rgWorkRequestItemCosts.ItemDataBound If TypeOf e.Item Is GridGroupHeaderItem Then Dim oItem As GridGroupHeaderItem = DirectCast(e.Item, GridGroupHeaderItem) Dim lnkAdd As New LinkButton() lnkAdd.ID = "lnkAdd" lnkAdd.CommandName = "CustomAddWorkRequestItemCost" lnkAdd.CommandArgument = DirectCast(oItem.DataItem, DataRowView).Row("nWorkRequestItemID").ToString() lnkAdd.Text = String.Format("<img style=""border:0px"" alt="""" width=""12"" src=""{0}"" /> Add new cost", ResolveUrl(String.Format("~/App_Themes/{0}/Grid/AddRecord.gif", Page.Theme))) lnkAdd.Style("color") = "#000000" lnkAdd.Style("text-decoration") = "none" AddHandler lnkAdd.Click, AddressOf lnkAdd_Click Dim tcPlaceholder As GridTableCell = DirectCast(oItem.Controls(1), GridTableCell) Dim litText As New LiteralControl(String.Format("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{0}", tcPlaceholder.Text)) tcPlaceholder.Text = String.Empty tcPlaceholder.Controls.Add(lnkAdd) tcPlaceholder.Controls.Add(litText) End If End Sub This code explicitly adds a handler for the LinkButton, but that handler is never hit. I've also tried events on the RadGrid (ItemCommand, ItemEvent) but none seem to get hit. Has anyone got any suggestions of other events to try, or ways to make this work? Thanks!

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  • Intercepting/Hijacking iPhone Touch Events for MKMapView

    - by Shawn
    Is there a bug in the 3.0 SDK that disables real-time zooming and intercepting the zoom-in gesture for the MKMapView? I have some real simple code so I can detect tap events, but there are two problems: zoom-in gesture is always interpreted as a zoom-out none of the zoom gestures update the Map's view in realtime. In hitTest, if I return the "map" view, the MKMapView functionality works great, but I don't get the opportunity to intercept the events. Any ideas? MyMapView.h: @interface MyMapView : MKMapView { UIView *map; } MyMapView.m: - (id)initWithFrame:(CGRect)frame { if (![super initWithFrame:frame]) return nil; self.multipleTouchEnabled = true; return self; } - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event { NSLog(@"Hit Test"); map = [super hitTest:point withEvent:event]; return self; } - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"%s", __FUNCTION__); [map touchesCancelled:touches withEvent:event]; } - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent*)event { NSLog(@"%s", __FUNCTION__); [map touchesBegan:touches withEvent:event]; } - (void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event { NSLog(@"%s, %x", __FUNCTION__, mViewTouched); [map touchesMoved:touches withEvent:event]; } - (void)touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event { NSLog(@"%s, %x", __FUNCTION__, mViewTouched); [map touchesEnded:touches withEvent:event]; }

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  • Events not sent to WPF based ActiveX control (COM interop) when using Reg-Free-COM

    - by embnut
    I have a WPF based ActiveX control (COM interop). I am able to use it correctly by registering the control. When I tried to Reg-Free-COM (using manifest files) the control seems to be activated, but the events (such as mouse click, RequestBringIntoView etc) dont respond. Interestingly, Double click and tab key works. I read in the this article http://blogs.msdn.com/karstenj/archive/2006/10/09/activex-wpf-gadget.aspx that " ... These upsides come with a price: the ActiveX control must be registered in the registry, which requires some kind of installation such as an .msi. The default gadget installation process cannot install ActiveX. The ActiveX control can't be access via reg-free COM. ..." Has anybody had a similar experience? Can anyone explain what is going on? Additional details: When the control is activated after it has been registered it appears as part of the COM client's UI. The control does not receive focus, its elements receive it. When using reg-free-com the control does not load correctly. 1) The control receives focus instead of its sub elements 2) The control has areas that are black instead of the windows default color 3) when I tab in and out of the control or double click it, it's subelements receive focus, the control starts receiving events and the black areas are replaced by the correct color

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  • JTree events seem misordered

    - by MeBigFatGuy
    It appears to me that tree selection events should happen after focus events, but this doesn't seem to be the case. Assume you have a JTree and a JTextField, where the JTextField is populated by what is selected in the tree. When the user changes the text field, on focus lost, you update the tree from the text field. however, the tree selection is changed before the focus is lost on the text field. this is incorrect, right? Any ideas? Here is some sample code: import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class Focus extends JFrame { public static void main(String[] args) { Focus f = new Focus(); f.setLocationRelativeTo(null); f.setVisible(true); } public Focus() { Container cp = getContentPane(); cp.setLayout(new BorderLayout()); final JTextArea ta = new JTextArea(5, 10); cp.add(new JScrollPane(ta), BorderLayout.SOUTH); JSplitPane sp = new JSplitPane(); cp.add(sp, BorderLayout.CENTER); JTree t = new JTree(); t.addTreeSelectionListener(new TreeSelectionListener() { public void valueChanged(TreeSelectionEvent tse) { ta.append("Tree Selection changed\n"); } }); t.addFocusListener(new FocusListener() { public void focusGained(FocusEvent fe) { ta.append("Tree focus gained\n"); } public void focusLost(FocusEvent fe) { ta.append("Tree focus lost\n"); } }); sp.setLeftComponent(new JScrollPane(t)); JTextField f = new JTextField(10); sp.setRightComponent(f); pack(); f.addFocusListener(new FocusListener() { public void focusGained(FocusEvent fe) { ta.append("Text field focus gained\n"); } public void focusLost(FocusEvent fe) { ta.append("Text field focus lost\n"); } }); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }

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  • Parent Control Mouse Enter/Leave Events With Child Controls

    - by Paul Williams
    I have a C# .NET 2.0 WinForms app. My app has a control that is a container for two child controls: a label, and some kind of edit control. You can think of it like this, where the outer box is the parent control: +---------------------------------+ | [Label Control] [Edit Control] | +---------------------------------+ I am trying to do something when the mouse enters or leaves the parent control, but I don't care if the mouse moves into one of its children. I want a single flag to represent "the mouse is somewhere inside the parent or children" and "the mouse has moved outside of the parent control bounds". I've tried handling MouseEnter and MouseLeave on the parent and both child controls, but this means the action begins and ends multiple times as the mouse moves across the control. In other words, I get this: Parent.OnMouseEnter (start doing something) Parent.OnMouseLeave (stop) Child.OnMouseEnter (start doing something) Child.OnMouseLeave (stop) Parent.OnMouseEnter (start doing something) Parent.OnMouseLeave (stop) The intermediate OnMouseLeave events cause some undesired effects as whatever I'm doing gets started and then stopped. I want to avoid that. I don't want to capture the mouse as the parent gets the mouse over, because the child controls need their mouse events, and I want menu and other shortcut keys to work. Is there a way to do this inside the .NET framework? Or do I need to use a Windows mouse hook?

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  • Handling events from user control containing a WPF textbox

    - by Tom
    I've been successful in putting a WPF textbox into an existing windows form using ElementHost and a user control. It looks like the following: Public Class MyUserControl Private _elementHost as ElementHost = New ElementHost Private _wpfTextbox as System.Windows.Controls.Textbox = New System.Windows.Controls.Textbox Public Sub New() Me.Controls.Add(_elementHost) _elementHost.Dock = DockStyle.Fill _elementHost.Child = _wpfTextbox _wpfTextbox.SpellCheck.IsEnabled = True End Sub End Class Now, when I put this user control onto a windows form, it accepts keyboard input and the form itself can get text from the textbox. However, when I try to handle keypress (or keydown, keyup) events from the user control, nothing happens. I've looked into this problem and did a bit of research but now I'm a little confused as to what I really need to be looking at. The following are the topics that I am somewhat confused about. HwndSource Relaxed delegates WPF routed events If I am interpreting everything correctly, input from WPF textboxes are handled differently compared to regular form textboxes. It seems like both aren't compatible with each other but there must be some way to "pass" keys from one to another? I'd appreciate any help.

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  • Monitoring all events in a class and sub-classes

    - by Basiclife
    Hi, I wonder if someone can help me. I've got a console App which I use to debug various components as I develop them. I'd like to be able to log to the console every time an event is fired either in the object I've instantiated or in anything it's instantiated [ad infinitum]. I wouldn't see some of these events normally due to them being consumed further down the chain). Ideally I would be able to log all public and private events but if only public are possible, I can live with that. I've Googled and all I can find is how to monitor a directory - So I'm not sure if this is not possible or simply has a name that I don't know. The sort of information I'm after is similar to what's found in an exception - Target Site, Source, Stack Trace, etc... Could I perhaps do this through reflection somehow? If someone could tell me if this is even possible and perhaps point me at some good resources, I'd be very grateful. Many thanks Basic To Give you an idea of the console App: Sub Main() Container = ContainerGenerate.GenerateContainer() Dim TemplateID As New Guid("5959b961-b347-46bc-b1b6-cba311304f43") Dim Templater = Container.Resolve(Of Interfaces.Mail.IMailGenerator)() Dim MyMessage = Templater.GenerateMail(TemplateID, Nothing, Nothing) Dim MySMTPClient = Container.Resolve(Of SmtpClient)() MySMTPClient.Send(MyMessage) Finish() End Sub

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  • Best practice - logging events (general) and changes (database)

    - by b0x0rz
    need help with logging all activities on a site as well as database changes. requirements: * should be in database * should be easily searchable by initiator (user name / session id), event (activity type) and event parameters i can think of a database design but either it involves a lot of tables (one per event) so i can log each of the parameters of an event in a separate field OR it involves one table with generic fields (7 int numeric and 7 text types) and log everything in one table with event type field determining what parameter got written where (and hoping that i don't need more than 7 fields of a certain type, or 8 or 9 or whatever number i choose)... example of entries (the usual things): [username] login failed @datetime [username] login successful @datetime [username] changed password @datetime, estimated security of password [low/ok/high/perfect] @datetime [username] clicked result [result number] [result id] after searching for [search string] and got [number of results] @datetime [username] clicked result [result number] [result id] after searching for [search string] and got [number of results] @datetime [username] changed profile name from [old name] to [new name] @datetime [username] verified name with [credit card type] credit card @datetime datbase table [table name] purged of old entries @datetime via automated process etc... so anyone dealt with this before? any best practices / links you can share? i've seen it done with the generic solution mentioned above, but somehow that goes against what i learned from database design, but as you can see the sheer number of events that need to be trackable (each user will be able to see this info) is giving me headaches, BUT i do LOVE the one event per table solution more than the generic one. any thoughts? edit: also, is there maybe an authoritative list of such (likely) events somewhere? thnx stack overflow says: the question you're asking appears subjective and is likely to be closed. my answer: probably is subjective, but it is directly related to my issue i have with designing a database / writing my code, so i'd welcome any help. also i tried narrowing down the ideas to 2 so hopefully one of these will prevail, unless there already is an established solution for these kinds of things.

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  • best practice - loging events (general) and changes (database)

    - by b0x0rz
    need help with logging all activities on a site as well as database changes. requirements: * should be in database * should be easily searchable by initiator (user name / session id), event (activity type) and event parameters i can think of a database design but either it involves a lot of tables (one per event) so i can log each of the parameters of an event in a separate field OR it involves one table with generic fields (7 int numeric and 7 text types) and log everything in one table with event type field determining what parameter got written where (and hoping that i don't need more than 7 fields of a certain type, or 8 or 9 or whatever number i choose)... example of entries (the usual things): [username] login failed @datetime [username] login successful @datetime [username] changed password @datetime, estimated security of password [low/ok/high/perfect] @datetime [username] clicked result [result number] [result id] after searching for [search string] and got [number of results] @datetime [username] clicked result [result number] [result id] after searching for [search string] and got [number of results] @datetime [username] changed profile name from [old name] to [new name] @datetime [username] verified name with [credit card type] credit card @datetime datbase table [table name] purged of old entries @datetime etc... so anyone dealt with this before? any best practices / links you can share? i've seen it done with the generic solution mentioned above, but somehow that goes against what i learned from database design, but as you can see the sheer number of events that need to be trackable (each user will be able to see this info) is giving me headaches, BUT i do LOVE the one event per table solution more than the generic one. any thoughts? edit: also, is there maybe an authoritative list of such (likely) events somewhere? thnx stack overflow says: the question you're asking appears subjective and is likely to be closed. my answer: probably is subjective, but it is directly related to my issue i have with designing a database / writing my code, so i'd welcome any help. also i tried narrowing down the ideas to 2 so hopefully one of these will prevail, unless there already is an established solution for these kinds of things.

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  • JQuery plugin: catch events for clicking/tabbing into and out of an input box

    - by poswald
    I'm creating a Javascript JQuery Timepicker control plugin (which I hope to open source soon) and I would like some advice on how to best register the events in the cleanest way. The control will attach to an <input> box and provide a graphical way to enter times of day ( 14:25, 2:45 AM, etc...). It does this by adding a <div> after the input box. What I want is to bind an openControl() function that fires when the input is clicked or tabbed to, and a closeControl() function that fires when the input box is tabbed away from or deselected but not if the control itself is clicked. That is, I don't want to close the control if you're clicking inside of the control's <input> or the <div>. Here's what I have been doing to try to get there: /* Close the control attached to the passed inputNode */ function closeContainer(inputNode, options) { $input = $(inputNode); if ( $input.next().is(':visible')) { $input.next().hide(options.hideAnim, options.hideOptions, options.hideDuration, options.onHide ); } } /* Open the control */ function openContainer(node, options) { $input = $(node); $input.next().show(options.showAnim, options.showOptions, options.showDuration, options.onShow ); // bind a click handler for closing the contol $("body").bind('click', function (e) { $('.time-control').each( function () { $input = $(this).prev(); // only close if click is outside of the control or the input box if (jQuery.contains(this, e.target) || ($input.get(0) === e.target) ) { closeContainer($input, options); setTime($input, $input.next(), options); } else { closeContainer($input, options); } }); }); } I want to add support for tabbing in/out but I feel like this approach is wrong. Focus/Blur wasn't working well because the blur event fires if you click on the control. Should I be using those events but filtering out if they are inside the control's div? Anyone have a better way of doing this? Thanks!

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  • Stop Observing Events with JS Prototype not working with .bind(this)

    - by PeterBelm
    I'm working on a Javascript class based on the Prototype library. This class needs to observe an event to perform a drag operation (the current drag-drop controls aren't right for this situation), but I'm having problems making it stop observing the events. Here's a sample that causes this problem: var TestClass = Class.create({ initialize: function(element) { this.element = element; Event.observe(element, 'mousedown', function() { Event.observe(window, 'mousemove', this.updateDrag.bind(this)); Event.observe(window, 'mouseup', this.stopDrag.bind(this)); }); }, updateDrag: function(event) { var x = Event.pointerX(event); var y = Event.pointerY(event); this.element.style.top = y + 'px'; this.element.style.left = x + 'px'; }, stopDrag: function(event) { console.log("stopping drag"); Event.stopObserving(window, 'mousemove', this.updateDrag.bind(this)); Event.stopObserving(window, 'mouseup', this.stopDrag.bind(this)); } }); Without .bind(this) then this.element is undefined, but with it the events don't stop being observed (the console output does occur though).

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  • Events fired when you change the contents of a control in Silverlight

    - by nyxtom
    Assuming I change the contents of a control using a XamlReader and add the UIElement to the container of a control, what events are supposed to fire? There are times where the SizeChanged will fire, LayoutUpdated changing.. though there are other times where neither of these occur despite having changing the contents of a control. In my case, I am generating a thumbnail view of what's currently in view on a page. The user can change the content of the page and thus the thumbnail should update accordingly. Though, wiring to the LayoutUpdated, Loaded, SizeChanged aren't always reliable for when the contents have changed. I would just call my InvalidateThumbnail which uses a writeablebitmap, but it's too quick after setting the content and as a result I will get a blank thumbnail. At the moment, my hack (cringes) was to wait a few milliseconds before the UI is done rendering the actual new content and I can reliably create the thumbnail. I'd rather just trigger on an event every time though. Possible? What events should I look at? I've seen CompositeTarget.Rendering but that's not what I want.

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  • Community Megaphone Podcast

    - by Steve Michelotti
    Last week I had the pleasure of being a guest on the Community Megaphone Podcast with Andrew Duthie and Dane Morgridge. We discussed .NET 4, C# 4, MVC 2, “geek religious wars”, and of course community. You can check out Show #5 here or directly download it. Thanks to Dane and Andrew for having me on the show!

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  • Dartisans Ep. 6 - Meet the community - Dart hangout

    Dartisans Ep. 6 - Meet the community - Dart hangout In this episode of Dartisans, we are joined by special guests from the Dart community. John Evans, Adam Smith, Chris Buckett, John McCutchan, and Lars Tackmann talk about their Dart libraries, what they like about Dart, and what they want to see in the future. Get started with Dart at www.dartlang.org From: GoogleDevelopers Views: 4 0 ratings Time: 48:11 More in Science & Technology

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  • September IIS Community Newsletter

    - by The Official Microsoft IIS Site
    For the latest news and happenings in the IIS community over the past month, be sure to check out the September edition of the IIS Community Newsletter: http://www.iisnewsletter.com/archive/september2012.html Make sure you don’t miss an edition and get it delivered directly to your inbox. You can subscribe at the link below. http://www.iisnewsletter.com/Subscribe.aspx Thank you....( read more ) Read More......(read more)

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  • Microsoft and the open source community

    - by Charles Young
    For the last decade, I have repeatedly, in my imitable Microsoft fan boy style, offered an alternative view to commonly held beliefs about Microsoft's stance on open source licensing.  In earlier times, leading figures in Microsoft were very vocal in resisting the idea that commercial licensing is outmoded or morally reprehensible.  Many people interpreted this as all-out corporate opposition to open source licensing.  I never read it that way. It is true that I've met individual employees of Microsoft who are antagonistic towards FOSS (free and open source software), but I've met more who are supportive or at least neutral on the subject.  In any case, individual attitudes of employees don't necessarily reflect a corporate stance.  The strongest opposition I've encountered has actually come from outside the company.  It's not a charitable thought, but I sometimes wonder if there are people in the .NET community who are opposed to FOSS simply because they believe, erroneously, that Microsoft is opposed. Here, for what it is worth, are the points I've repeated endlessly over the years and which have often been received with quizzical scepticism. a)  A decade ago, Microsoft's big problem was not FOSS per se, or even with copyleft.  The thing which really kept them awake at night was the fear that one day, someone might find, deep in the heart of the Windows code base, some code that should not be there and which was published under GPL.  The likelihood of this ever happening has long since faded away, but there was a time when MS was running scared.  I suspect this is why they held out for a while from making Windows source code open to inspection.  Nowadays, as an MVP, I am positively encouraged to ask to see Windows source. b)  Microsoft has never opposed the open source community.  They have had problems with specific people and organisations in the FOSS community.  Back in the 1990s, Richard Stallman gave time and energy to a successful campaign to launch antitrust proceedings against Microsoft.  In more recent times, the negative attitude of certain people to Microsoft's submission of two FOSS licences to the OSI (both of which have long since been accepted), and the mad scramble to try to find any argument, however tenuous, to block their submission was not, let us say, edifying. c) Microsoft has never, to my knowledge, written off the FOSS model.  They certainly don't agree that more traditional forms of licensing are inappropriate or immoral, and they've always been prepared to say so.  One reason why it was so hard to convince people that Microsoft is not rabidly antagonistic towards FOSS licensing is that so many people think they have no involvement in open source.  A decade ago, there was virtually no evidence of any such involvement.  However, that was a long time ago.  Quietly over the years, Microsoft has got on with the job of working out how to make use of FOSS licensing and how to support the FOSS community.  For example, as well as making increasingly extensive use of Github, they run an important FOSS forge (CodePlex) on which they, themselves, host many hundreds of distinct projects.  The total count may even be in the thousands now.  I suspect there is a limit of about 500 records on CodePlex searches because, for the past few years, whenever I search for Microsoft-specific projects on CodePlex, I always get approx. 500 hits.  Admittedly, a large volume of the stuff they publish under FOSS licences amounts to code samples, but many of those 'samples' have grown into useful and fully featured frameworks, libraries and tools. All this is leading up to the observation that yesterday's announcement by Scott Guthrie marks a significant milestone and should not go unnoticed.  If you missed it, let me summarise.   From the first release of .NET, Microsoft has offered a web development framework called ASP.NET.  The core libraries are included in the .NET framework which is released free of charge, but which is not open source.   However, in recent years, the number of libraries that constitute ASP.NET have grown considerably.  Today, most professional ASP.NET web development exploits the ASP.NET MVC framework.  This, together with several other important parts of the ASP.NET technology stack, is released on CodePlex under the Apache 2.0 licence.   Hence, today, a huge swathe of web development on the .NET/Azure platform relies four-square on the use of FOSS frameworks and libraries. Yesterday, Scott Guthrie announced the next stage of ASP.NET's journey towards FOSS nirvana.  This involves extending ASP.NET's FOSS stack to include Web API and the MVC Razor view engine which is rapidly becoming the de facto 'standard' for building web pages in ASP.NET.  However, perhaps the more important announcement is that the ASP.NET team will now accept and review contributions from the community.  Scott points out that this model is already in place elsewhere in Microsoft, and specifically draws attention to development of the Windows Azure SDKs.  These SDKs are central to Azure development.   The .NET and Java SDKs are published under Apache 2.0 on Github and Microsoft is open to community contributions.  Accepting contributions is a more profound move than simply releasing code under FOSS licensing.  It means that Microsoft is wholeheartedly moving towards a full-blooded open source approach for future evolution of some of their central and most widely used .NET and Azure frameworks and libraries.  In conjunction with Scott's announcement, Microsoft has also released Git support for CodePlex (at long last!) and, perhaps more importantly, announced significant new investment in their own FOSS forge. Here at Solidsoft we have several reasons to be very interested in Scott's announcement. I'll draw attention to one of them.  Earlier this year we wrote the initial version of a new UK Government web application called CloudStore.  CloudStore provides a way for local and central government to discover and purchase applications and services. We wrote the web site using ASP.NET MVC which is FOSS.  However, this point has been lost on the ladies and gentlemen of the press and, I suspect, on some of the decision makers on the government side.  They announced a few weeks ago that future versions of CloudStore will move to a FOSS framework, clearly oblivious of the fact that it is already built on a FOSS framework.  We are, it is fair to say, mildly irked by the uninformed and badly out-of-date assumption that “if it is Microsoft, it can't be FOSS”.  Old prejudices live on.

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  • New UK SQL Server community event

    - by GavinPayneUK
    I’m pleased to announce that with the support of VMware I will be holding a new UK SQL Server community event in January 2011. Wednesday January 19th 2011 6.45-9.00pm Free registration required, free parking on-site Registration link here SQL Server in the Evening , hosted at VMware’s UK headquarters in Frimley in Surrey, will cover contemporary technology topics for those using SQL Server in 2011, as well as providing a chance to make and meet with SQL Server community friends. The event will have...(read more)

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