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• Windows Azure Recipe: Software as a Service (SaaS)

  - by Clint Edmonson

  The cloud was tailor built for aspiring companies to create innovative internet based applications and solutions. Whether you’re a garage startup with very little capital or a Fortune 1000 company, the ability to quickly setup, deliver, and iterate on new products is key to capturing market and mind share. And if you can capture that share and go viral, having resiliency and infinite scale at your finger tips is great peace of mind. Drivers Cost avoidance Time to market Scalability Solution Here’s a sketch of how a basic Software as a Service solution might be built out: Ingredients Web Role – this hosts the core web application. Each web role will host an instance of the software and as the user base grows, additional roles can be spun up to meet demand. Access Control – this service is essential to managing user identity. It’s backed by a full blown implementation of Active Directory and allows the definition and management of users, groups, and roles. A pre-built ASP.NET membership provider is included in the training kit to leverage this capability but it’s also flexible enough to be combined with external Identity providers including Windows LiveID, Google, Yahoo!, and Facebook. The provider model provides extensibility to hook into other industry specific identity providers as well. Databases – nearly every modern SaaS application is backed by a relational database for its core operational data. If the solution is sold to organizations, there’s a good chance multi-tenancy will be needed. An emerging best practice for SaaS applications is to stand up separate SQL Azure database instances for each tenant’s proprietary data to ensure isolation from other tenants. Worker Role – this is the best place to handle autonomous background processing such as data aggregation, billing through external services, and other specialized tasks that can be performed asynchronously. Placing these tasks in a worker role frees the web roles to focus completely on user interaction and data input and provides finer grained control over the system’s scalability and throughput. Caching (optional) – as a web site traffic grows caching can be leveraged to keep frequently used read-only, user specific, and application resource data in a high-speed distributed in-memory for faster response times and ultimately higher scalability without spinning up more web and worker roles. It includes a token based security model that works alongside the Access Control service. Blobs (optional) – depending on the nature of the software, users may be creating or uploading large volumes of heterogeneous data such as documents or rich media. Blob storage provides a scalable, resilient way to store terabytes of user data. The storage facilities can also integrate with the Access Control service to ensure users’ data is delivered securely. Training & Examples These links point to online Windows Azure training labs and examples where you can learn more about the individual ingredients described above. (Note: The entire Windows Azure Training Kit can also be downloaded for offline use.) Windows Azure (16 labs) Windows Azure is an internet-scale cloud computing and services platform hosted in Microsoft data centers, which provides an operating system and a set of developer services which can be used individually or together. It gives developers the choice to build web applications; applications running on connected devices, PCs, or servers; or hybrid solutions offering the best of both worlds. New or enhanced applications can be built using existing skills with the Visual Studio development environment and the .NET Framework. With its standards-based and interoperable approach, the services platform supports multiple internet protocols, including HTTP, REST, SOAP, and plain XML SQL Azure (7 labs) Microsoft SQL Azure delivers on the Microsoft Data Platform vision of extending the SQL Server capabilities to the cloud as web-based services, enabling you to store structured, semi-structured, and unstructured data. Windows Azure Services (9 labs) As applications collaborate across organizational boundaries, ensuring secure transactions across disparate security domains is crucial but difficult to implement. Windows Azure Services provides hosted authentication and access control using powerful, secure, standards-based infrastructure. Developing Applications for the Cloud, 2nd Edition (eBook) This book demonstrates how you can create from scratch a multi-tenant, Software as a Service (SaaS) application to run in the cloud using the latest versions of the Windows Azure Platform and tools. The book is intended for any architect, developer, or information technology (IT) professional who designs, builds, or operates applications and services that run on or interact with the cloud. Fabrikam Shipping (SaaS reference application) This is a full end to end sample scenario which demonstrates how to use the Windows Azure platform for exposing an application as a service. We developed this demo just as you would: we had an existing on-premises sample, Fabrikam Shipping, and we wanted to see what it would take to transform it in a full subscription based solution. The demo you find here is the result of that investigation See my Windows Azure Resource Guide for more guidance on how to get started, including more links web portals, training kits, samples, and blogs related to Windows Azure.

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• Is it possible to search through json result with jQuery

  - by mickyjtwin

  What I'm trying to achieve, is to output a json list that contains a list of Css classes, and their corresponding url records, i.e. var jsonList = [{"CSSClass":"testclass1","VideoUrl":"/Movies/movie.flv"},{"CSSClass":"testclass2","VideoUrl":"/Movies/movie2.flx"}]; //]]> foreach item in the list I am adding a click event to the class... $.each(script, function() { $("." + this.CSSClass, "#pageContainer").live('click', function(e) { videoPlayer.playMovie(this); return false; }); }); What I'm wondering, is if I can somehow get the corresponding url from the jsonlist, without having to loop through them all again, searching for CSSClass, or adding the url to the link as an attribute?

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• ASP.NET AJAX UpdatePanel problem

  - by Velika

  I'll try and be concise: 1) I have a dropdownlist with Autopostback set to TRUE 2) I have an UpdatePanel that contains a Label. 3) When the downdownlist selection is changed, I want to update the label. Problem: Focus is lost on the dropdownlist, forcing the user to click on the dropdownlist to reset focus back to the control. My "solution": In the DropDownList_SelectionChanged event, set focus back to the drop down list: dropdownlist1.focus() Problem: While this works great in IE, Firefox and Chrome change the scroll position such that the control which was assigned focus is positioned at the bottom on the visible portion of the browser window. This is often a very disorientating side effect. How can this be avoided so it works in FF as it does in IE?

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• MouseWheel: Scrolling vs. Zooming

  - by beaudetious

  I've got a Silverlight 4 custom control that basically is several Canvas elements wrapped inside a ScrollViewer. The user can set a property to determine whether to scroll or zoom when using their mouses wheel. In the custom control's MouseWheel event, I check to see if they want to scroll or zoom. If zooming, I determine the delta and modify the custom control's zoom level (which then handles the zooming code for me). The problem is that zooming won't start until the ScrollViewer's current position of the vertical scrollbar is at the top or bottom of the scrollbar. Once their, then the zooming works perfectly. Does anyone have any suggestions on how I can prevent scrolling completely so that I only zoom (when the user wants to zoom, that is)? Thanks!

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• jQuery / Spry Validation / Problem

  - by samuel baldus

  Hi Chaps, I have a PHP form with one input and a button. A jQuery script ('loading' animated gif) is triggered on the click of the submit button. I also have a Spry Validation field linked to the input. At the moment, if the validation is triggered, the animated gif continues and won't stop. The furthest I've managed to get with it, is to click the validation message to stop the animation, but what I'm really after is to stop the animation when the validation is visible/triggered, but I can't find a suitable Event. $(function() { $("#button_download") .click(function() { }) .throbber(); $("#sprytextfield1") .click(function(sprytextfield1) { $.throbberHide(); }) }); If someone can point me in the right direction, that would be sweet.

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• Problem in getting Contact Info

  - by Rahul

  Hi, I m working on application in which i have to send all contacts from Android mobile to other mobile through SMS. I don't have any problem in getting contact information but when I send those Contacts after few messages there is Alert Window pop up saying "A large number of message have being send" and ask if you want to send or not. I am testing this application on HTC Hero. Is this problem is for specific mobiles or for all? I don't know what should i do to avoid this window because I cant get SMS Sent event. Please help me with any ideas that i can implement........ Thanks

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• Tuning Red Gate: #2 of Many

  - by Grant Fritchey

  In the last installment, I used the SQL Monitor tool to get a snapshot view of the current state of the servers at Red Gate that are giving us trouble. That snapshot suggested some areas where I should focus some time, primarily in which queries were being called most frequently or were running the longest. But, you don't want to just run off & start tuning queries. Remember, the foundation for query tuning is the server itself. So, I want to be sure I'm not looking at some major hardware or configuration issues that I need to address first. Rather than look at the current status of the server, I'm going to look at historical data. Clicking on the Analysis tab of SQL Monitor I get a whole list of counters that I can look at. More importantly, I can look at them over a period of time. Even more importantly, I can compare past periods with current periods to see if we're looking at a progressive issue or not. There are counters here that will give me an indication of load, and there are counters here that will tell me specifics about that load. First, I want to just look at the load to understand where the pain points might be. Trying to drill down before you have detailed information is just bad planning. First thing I'm going to check is the CPU, just to see what's up there. I have two servers I'm interested in, so I'll show you both: Looking at the last 30 days for both servers, well, let's just say that the first server is about what I would expect. It has an average baseline behavior with occasional, regular, peaks. This looks like a system with a fairly steady & predictable load that probably has a nightly batch process that spikes the processor. In short, normal stuff. The points there where the CPU drops radically. that might be worth investigating further because something changed the processing on this system a lot. But the first server. It's all over the place. There's no steady CPU behavior at all. It's spike high for long periods of time. It's up, it's down. I'm really going to have to spend time looking at CPU issues on this server to try to figure out what's up. It might be other processes being shared on the server, it might be something else. Either way, I'm going to have to spend time evaluating this CPU, especially those peeks about a week ago. Looking at the Pages/sec, again, just a measure of load, I see that there are some peaks on the rg-sql02 server, but over all, it looks like a fairly standard load. Plus, the peaks are only up to 550 pages/sec. Remember, this isn't a performance measure, but just a load measurement, but from this, I don't think we're looking at major memory issues, but I may want to correlate these counters with the CPU counters. Again, the other server looks like there's stuff going on. The load is not at all consistent. In fact there was a point earlier in the year that looks pretty severe. Plus the spikes here are twice the size of the other system. We've got a lot more load going on here and I will probably need to drill down on memory usage on this server. Taking a look at the disk transfers/sec the load on both systems seems to roughly correspond to the other load indicators. Notice that drop right in the middle of the graph for rg-sql02. I wonder if the office was closed over that period or a system was down for maintenance. If I saw spikes in memory or disk that corresponded to the drip in CPU, you can assume something was using those other resources and causing a drop, but when everything goes down, it just means that the system isn't gettting used. The disk on the rg-sql01 system isn't spiking exactly the same way as the memory & cpu, so there's a good chance (chance mind you) that any performance issues might not be disk related. However, notice that huge jump at the beginning of the month. Several disks were used more than they were for the rest of the month. That's the load on the server. What about the load on SQL Server itself? Next time.

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• Expanding all items of a NSOutlineView that loads data from a data source

  - by matei

  First of all I'm new to cocoa development so I suppose I'm probably trying to do this the wrong way, but here goes: I have a NSOutlineView which loads the data from a NSOutlineViewDataSource imnplementation. I want all the items to be expanded after they are loaded, but i can't seem to find an event fired when the data has finished loading, so I can send a [outlineView expandItem:nil expandChildren: YES] to it. I looked into the NSOutlineViewDelegate protocol but I was unable to find a sutable place for this call. What would be the best approach for this problem ?

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• How to fill a webdynpro table binded to a BAPI initially?

  - by Philipp Andre

  Hello SAP-Gurus, im fairly new to webdynpro abap and have the following problem: I created a service returning a set of all existing customers. This function works well, if i test it in a litte program simply printing out the lines. now i created a webdynpro containing a table to display these customers. I also did the binding! AND it works, but only if an event fires the execute...function. What i need is kind of "execute initially", means that the function gets executed when the table initially loads. How can i do this? Best regards Philipp

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• GTK+ (GTKSharp) poor performance in Windows

  - by nubela

  Hi, In my Mono (C#) project that is meant to be cross-platform, I am using the GTK for the UI. However one thing I noticed is, on my netbook in Archlinux, the performance is really speedy, so events such as mouse hover, and redrawing of widgets, etc, are really fast. Compared to windows (7) on dual core CPUs, the performance is really really weak. Which perplexes me. Am I doing something wrong that is warranting this difference in performance between OSes? What are some ways I can do to optimize GTK on Windows? Its really bad to take around 0.5 secs for a hover event to kick in whereas its almost immediate on a weak(er) netbook with Linux. My code is here for the GUI layer: http://code.google.com/p/subsynct/source/browse/branches/dev/subsync#subsync/GUI Thanks!

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• Databinding race condition

  - by Stephen Price

  I have a login form (using ChildWindow) and have implemented a Keyup event handler on the passwordbox. If the key is enter then it sets the ChildWindow ResultDialog to true. What seems to be happening is the databinding on the Passwordbox is not happening before the childwindow is closed so the Password property on my Login control is null. I've tried using KeyUp and Keydown, as well as using a buttonAutoPeer to invoke a click on the Ok button. I've also tried setting the focus to the OKbutton before setting the DialogResult (which closes the window). private void PasswordBox_KeyUp(object sender, KeyEventArgs e) { if (e.Key == Key.Enter) { if (UsernameBox.Text != userPrompt && !string.IsNullOrEmpty(PasswordBox.Password.Trim())) { this.DialogResult = true; } else { UsernameBox.Focus(); } } }

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• UITouches not detecting.

  - by Tony

  Hi, My UItouches is not detecting in my Slideshow nib file. What is the problem? Can anyone help? @class Slideshow; @interface RootViewController : UIViewController{ PreferencesController *preferencesController; Slideshow *slideshow;} Slideshow Implementation @implementation Slideshow - (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event { NSLog(@"touches begin"); } - (void)viewDidLoad { UIImageView *frontView = [[UIImageView alloc] initWithFrame:self.view.bounds]; frontView.backgroundColor = [UIColor blackColor]; frontView.image = [UIImage imageNamed:@"apple.png"]; frontView.userInteractionEnabled = YES; [self.view addSubview:frontView]; [frontView release]; }@end

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• Can I refresh a Yii CGridView from js?

  - by Brian Dunn

  When a "Create" modal dialog is submitted via XHR Then the rows in a Yii CGridView should be refreshed. I've tried to achieve this by rendering the new gridview in the XHR "create" action and then inserting it into the page via $("#list").html(response), but rendering a CGridView causes jQuery <script> include tags to be registered for inclusion, and so when I introduce those tags into the page they reload jQuery, which wipes out my live event handlers, so a bunch of stuff breaks. Which has me thinking, "the GridView knows how to refresh itself. heck, it does all the time on sort or page." So I can click a sort button in the GridView from js, but thats less than Ideal. I'd prefer to say $("#list").gridview('reload') or $.fn.gridview.reload("#list") or some such sense. Or do the way cool thing that is soo much simpler that you thought of just now.

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• Merck Serono Gains Deep Understanding of Product Portfolio Value-Drivers, Risks, and Sales Expectations Through Forecasting Solution

  - by Melissa Centurio Lopes

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Merck Serono S.A. is the biopharmaceutical division of Merck KGaA. It offers leading brands in 150 countries to help patients with cancer, multiple sclerosis, infertility, endocrine and metabolic disorders, as well as cardiovascular diseases. Challenges: Establish a better decision-making framework for its complex, development portfolio of pharmaceutical products, where single-point estimates or expected averages of portfolio values, portfolio risks, and sales forecasts are insufficient and can be misleading Enable the company to be aware at all times of the range of possible outcomes of technical and market risks and uncertainties, such as the technical uncertainty of whether a product will produce the desired clinical outcomes, or the market-related uncertainty of whether a product will be outperformed by its competitors Solutions to Overcome the Challenges: Used Oracle Crystal Ball to devise a Monte-Carlo-based approach to better analyze and define the values and risks of the company’s development portfolio, laying the groundwork for optimized decision-making Enabled a better understanding of the range of potential values and risks to improve portfolio planning Enabled detailed analysis of the likelihood of favorable or unfavorable outcomes, such as the likelihood of whether Merck Serono can meet its sales targets planned for the next ten years with its existing product portfolio Gained the ability to take into account correlative risks, synergies and project interactions, enabling Merck Serono to better forecast what the company may achieve—for example, that there is a 70% probability of a particular sales target being met Established Monte-Carlo-based analysis using Oracle Crystal Ball as a useful element in decision-making at the board level, as the approach provides a better analysis of values and risks associated with the company’s product portfolio “Oracle Crystal Ball enables us to make Monte Carlo simulations of the potential value and sales of our development portfolio. It is a very powerful tool for gaining a thorough understanding and improved awareness of value drivers, uncertainties, and risks, along with associated probabilities.” – Riccardo Lampariello, Associate Director, Merck Serono S.A Why Oracle “We chose Oracle Crystal Ball to enable us to perform Monte Carlo analysis, which gives us a deeper understanding and improved awareness of the value drivers, uncertainties and risks of our portfolio of development projects,” said Kimber Hardy, head of valuation and analysis, Merck Serono S.A. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Click here to read the full version of the customer success story Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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• on some Windows machines, skinned applications sometimes loses their skin. any ideas?

  - by Lior

  Hi we are developing a skinned application, and under vista/windows 7, on some machines, skinned applications sometimes loses their skin. here's an example for the problem, and here's how the application looks when it's good. this happens to us whether we develop with native Win32 API or in QT. It happens spontanously, with no event that might explain it. btw, we see it happens sometimes to some other applications, too we solve it by repainting everything every 2-3 seconds. but this is an ugly hack... any ideas why this could happen? thanks _very_much_ for any lead - Lior

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• Visual Studio 2008 Crashes When Opening Project Properties

  - by Joseph Sturtevant

  I have a multi-project .NET application which I am developing in Visual Studio 2008. If I try to open the project properties for one of my projects (to change settings or publish) Visual Studio immediately closes. There is no prompt to send a report to Microsoft, and two consecutive errors logged in the Event Viewer: .NET Runtime version 2.0.50727.3053 - Fatal Execution Engine Error (7A035E00) (80131506) .NET Runtime version 2.0.50727.3053 - Fatal Execution Engine Error (7A2E0F92) (0) If I delete all the .user and .suo files in my solution, I can once again publish and access project properties. The error, however, returns over time. This seems to suggest that the .suo or .user files are getting corrupted by Visual Studio. Has anyone else had this issue or know how to fix the problem?

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• Why / When / How is this Android serviceBinder resetting to null?

  - by GaZ

  I've written a ListActivity for Android 2.1 which is used to display a list of event categories. As the user selects a category, the program calls a web service to retrieve a list of sub-events. For example, a top level event might be "soccer" and when the user selects this the web service would return various soccer associations (e.g. "english", "french", "german", etc.) and display them in a new list. The following code seems to work occasionally, however sometimes the call to the service (in EventsListTask) fails because the serviceBinder is null. How/Why does this happen? public class EventListsActivity extends ListActivity { private static final String EVENT_ID = "EventId"; private List<ListItem> eventList; private ArrayAdapter<ListItem> listItemArrayAdapter; private static final int LOADING_DIALOG = 1; private EventsListTask eventsListTask = null; private BFService serviceBinder; private ServiceConnection mConnection = new ServiceConnection() { public void onServiceConnected(ComponentName componentName, IBinder iBinder) { Log.i("EventListsActivity", "service connected"); serviceBinder = ((BFService.BFBinder)iBinder).getService(); } public void onServiceDisconnected(ComponentName componentName) { Log.i("EventListsActivity", "service disconnected"); serviceBinder = null; } }; @Override public void onCreate(Bundle savedInstanceState) { Log.i("EventListsActivity", "onCreate"); super.onCreate(savedInstanceState); setContentView(R.layout.list); eventList = new ArrayList<ListItem>(); listItemArrayAdapter = new ArrayAdapter<ListItem>(this, R.layout.row, eventList); setListAdapter(listItemArrayAdapter); Intent bindIntent = new Intent(this, BFService.class); bindService(bindIntent, mConnection, Context.BIND_AUTO_CREATE); int eventId = getIntent().getIntExtra(EVENT_ID, -1); if (eventsListTask == null || eventsListTask.getStatus() == AsyncTask.Status.FINISHED) { eventsListTask = new EventsListTask(); eventsListTask.execute(eventId); } } @Override protected void onDestroy() { Log.i("EventListsActivity", "destroyed"); super.onDestroy(); unbindService(mConnection); } @Override protected void onListItemClick(ListView listView, View view, int position, long id) { super.onListItemClick(listView, view, position, id); ListItem selectedItem = (ListItem) listView.getAdapter().getItem(position); Intent intent; if (selectedItem.getMarketType() != null) { intent = new Intent(this, MarketActivity.class); intent.putExtra(EVENT_ID, selectedItem.getId()); startActivityIfNeeded(intent, -1); } else if (selectedItem.getId() != -1) { intent = new Intent(this, EventListsActivity.class); intent.putExtra(EVENT_ID, selectedItem.getId()); startActivityIfNeeded(intent, -1); } else { Log.e("EventListsActivity", "unexpected item selected!"); } } @Override protected Dialog onCreateDialog(int id) { switch (id) { case (LOADING_DIALOG) : AlertDialog.Builder loadingDialog = new AlertDialog.Builder(this); loadingDialog.setTitle("Please Wait..."); loadingDialog.setMessage("Communicating with remote service."); return loadingDialog.create(); } return null; } private class EventsListTask extends AsyncTask<Integer, Void, LoginStatusEnum> { @Override protected void onPreExecute() { showDialog(LOADING_DIALOG); } @Override protected void onPostExecute(LoginStatusEnum loginStatusEnum) { dismissDialog(LOADING_DIALOG); if (loginStatusEnum != null) { switch (loginStatusEnum) { case OK: for (ListItem item : eventList) { listItemArrayAdapter.add(item); } listItemArrayAdapter.notifyDataSetChanged(); break; } } } @Override protected LoginStatusEnum doInBackground(Integer... params) { LoginStatusEnum result = LoginStatusEnum.OK; Integer eventId = params[0]; if (serviceBinder != null) { try { if (eventId == null || eventId == -1) { eventList = serviceBinder.getActiveEventTypes(); } else { eventList = serviceBinder.getEvents(eventId); } } catch (WebServiceException wse) { result = LoginStatusEnum.valueOf(wse.getMessage()); } } else { Log.e("EventListsActivity", "serviceBinder is null!"); } return result; } } } EDIT: The serviceBinder appears to be set to null when I reach the bottom of a list, when I change the target intent to go to a different activity: intent = new Intent(this, MarketActivity.class); intent.putExtra(EVENT_ID, selectedItem.getId()); startActivity(intent); This new activity also uses the same background service (binds in the same way, etc.). Is there anything I need to watch out for when doing this? Am I calling the target intent incorrectly? EDIT2: Here's the output from LogCat when I start the activity which calls the service (this time the service failed straight away!): 04-02 07:02:49.147: INFO/ActivityManager(61): Starting activity: Intent { cmp=net.foobar.activity/.EventListsActivity } 04-02 07:02:49.257: INFO/EventListsActivity(353): onCreate 04-02 07:02:49.426: INFO/EventListsActivity(353): service connected 04-02 07:02:49.437: ERROR/EventListsActivity(353): serviceBinder is null!

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• My Right-to-Left Foot (T-SQL Tuesday #13)

  - by smisner

  As a business intelligence consultant, I often encounter the situation described in this month's T-SQL Tuesday, hosted by Steve Jones ( Blog | Twitter) – “What the Business Says Is Not What the  Business Wants.” Steve posed the question, “What issues have you had in interacting with the business to get your job done?” My profession requires me to have one foot firmly planted in the technology world and the other foot planted in the business world. I learned long ago that the business never says exactly what the business wants because the business doesn't have the words to describe what the business wants accurately enough for IT. Not only do technological-savvy barriers exist, but there are also linguistic barriers between the two worlds. So how do I cope? The adage "a picture is worth a thousand words" is particularly helpful when I'm called in to help design a new business intelligence solution. Many of my students in BI classes have heard me explain ("rant") about left-to-right versus right-to-left design. To understand what I mean about these two design options, let's start with a picture: When we design a business intelligence solution that includes some sort of traditional data warehouse or data mart design, we typically place the data sources on the left, the new solution in the middle, and the users on the right. When I've been called in to help course-correct a failing BI project, I often find that IT has taken a left-to-right approach. They look at the data sources, decide how to model the BI solution as a _______ (fill in the blank with data warehouse, data mart, cube, etc.), and then build the new data structures and supporting infrastructure. (Sometimes, they actually do this without ever having talked to the business first.) Then, when they show what they've built to the business, the business says that is not what we want. Uh-oh. I prefer to take a right-to-left approach. Preferably at the beginning of a project. But even if the project starts left-to-right, I'll do my best to swing it around so that we’re back to a right-to-left approach. (When circumstances are beyond my control, I carry on, but it’s a painful project for everyone – not because of me, but because the approach just doesn’t get to what the business wants in the most effective way.) By using a right to left approach, I try to understand what it is the business is trying to accomplish. I do this by having them explain reports to me, and explaining the decision-making process that relates to these reports. Sometimes I have them explain to me their business processes, or better yet show me their business processes in action because I need pictures, too. I (unofficially) call this part of the project "getting inside the business's head." This is starting at the right side of the diagram above. My next step is to start moving leftward. I do this by preparing some type of prototype. Depending on the nature of the project, this might mean that I simply mock up some data in a relational database and build a prototype report in Reporting Services. If I'm lucky, I might be able to use real data in a relational database. I'll either use a subset of the data in the prototype report by creating a prototype database to hold the sample data, or select data directly from the source. It all depends on how much data there is, how complex the queries are, and how fast I need to get the prototype completed. If the solution will include Analysis Services, then I'll build a prototype cube. Analysis Services makes it incredibly easy to prototype. You can sit down with the business, show them the prototype, and have a meaningful conversation about what the BI solution should look like. I know I've done a good job on the prototype when I get knocked out of my chair so that the business user can explore the solution further independently. (That's really happened to me!) We can talk about dimensions, hierarchies, levels, members, measures, and so on with something tangible to look at and without using those terms. It's not helpful to use sample data like Adventure Works or to use BI terms that they don't really understand. But when I show them their data using the BI technology and talk to them in their language, then they truly have a picture worth a thousand words. From that, we can fine tune the prototype to move it closer to what they want. They have a better idea of what they're getting, and I have a better idea of what to build. So right to left design is not truly moving from the right to the left. But it starts from the right and moves towards the middle, and once I know what the middle needs to look like, I can then build from the left to meet in the middle. And that’s how I get past what the business says to what the business wants.

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• Confirm box before closing a tab

  - by piemesons

  I want to have a confirm box when user tries to close the window. window.onbeforeunload = function (evt) { var message = 'Are you sure you want to leave, cause there are some unsaved changes?'; if (typeof evt == 'undefined') { evt = window.event; } if (evt ) { evt.returnValue = message; } return message; } The thing is i want to check a variables value var sncro=1; If its value is not equal to one then this confirmation box should be there..else no need to have a confirmation. I m not able to figure this..Its soo silly but i request anybody can have a look on the code. thnks.

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• RegEx to extract all HTML tag attributes including inline JavaScript

  - by Mike

  I found this useful regex code here while looking to parse HTML tag attributes: (\S+)=["']?((?:.(?!["']?\s+(?:\S+)=|[>"']))+.)["']? It works great, but it's missing one key element that I need. Some attributes are event triggers that have inline Javascript code in them like this: onclick="doSomething(this, 'foo', 'bar');return false;" Or: onclick='doSomething(this, "foo", "bar");return false;' I can't figure out how to get the original expression to not count the quotes from the JS (single or double) while it's nested inside the set of quotes that contain the attribute's value.

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• How to update the InnoSetup Wizard GUI status text from PascalScript code

  - by mkva

  Hi I execute a lot of custom actions in my InnoSetup script in the CurStepChanged(ssPostInstall) PascalScripting event handler. As these actions take some time to finish, I'd like to update the InnoSetup Wizard GUI status text and tell the user what is going on behind the scenes. Something similar that is possible in the [Run] section using the "StatusMsg" parameter. I know that I could use the TOutputProgressWizardPage/CreateOutputProgressPage(), and I did in a previous project, but it's a bit too much overkill to my liking... Is there a simpler possibility to update the InnoSetup Wizard GUI status text from PascalScripting code with the same effect as the StatusMsg parameter?

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• Timer with random seconds ¿How to update the random seconds?

  - by benLIVE

  I have a timer "tmr_sendCesta" which must be called each x seconds between 1 and 3 seconds. The problem is the timer "tmr_sendCesta" is called only one time, and the random seconds is never updated. I need to call the function "createCesta" each x seconds randomly. Any idea how to do it? function createCesta() cesta = display.newImageRect("cesta.png", 100, 55) cesta.x = -110 cesta.y = screenH - 110 cesta.name = "cesta" physics.addBody( cesta, physicsData:get("cestaSmall")) grupoCesta:insert(cesta) transition.to(cesta, {time = 4000, x = screenW + 110}) end function scene:enterScene( event ) local group = self.view physics.start() Runtime:addEventListener("touch", touchScreen) Runtime:addEventListener( "collision", onCollision ) tmr_sendCesta = timer.performWithDelay((math.random(1000, 3000), randomCesta, 0) end

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• Implicitly invoking parent class initializer

  - by Matt Joiner

  class A(object): def __init__(self, a, b, c): #super(A, self).__init__() super(self.__class__, self).__init__() class B(A): def __init__(self, b, c): print super(B, self) print super(self.__class__, self) #super(B, self).__init__(1, b, c) super(self.__class__, self).__init__(1, b, c) class C(B): def __init__(self, c): #super(C, self).__init__(2, c) super(self.__class__, self).__init__(2, c) C(3) In the above code, the commented out __init__ calls appear to the be the commonly accepted "smart" way to do super class initialization. However in the event that the class hierarchy is likely to change, I have been using the uncommented form, until recently. It appears that in the call to the super constructor for B in the above hierarchy, that B.__init__ is called again, self.__class__ is actually C, not B as I had always assumed. Is there some way in Python-2.x that I can overcome this, and maintain proper MRO when calling super constructors without actually naming the current class?

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• log4j.xml configuration with <rollingPolicy> and <triggeringPolicy>

  - by Mike Smith

  I try to configure log4j.xml in such a way that file will be rolled upon file size, and the rolled file's name will be i.e: "C:/temp/test/test_log4j-%d{yyyy-MM-dd-HH_mm_ss}.log" I followed this discussion: http://web.archiveorange.com/archive/v/NUYyjJipzkDOS3reRiMz Finally it worked for me only when I add: try { Thread.sleep(1); } catch (InterruptedException e) { e.printStackTrace(); } to the method: public boolean isTriggeringEvent(Appender appender, LoggingEvent event, String filename, long fileLength) which make it works. The question is if there is a better way to make it work? since this method call many times and slow my program. Here is the code: package com.mypack.rolling; import org.apache.log4j.rolling.RollingPolicy; import org.apache.log4j.rolling.RolloverDescription; import org.apache.log4j.rolling.TimeBasedRollingPolicy; /** * Same as org.apache.log4j.rolling.TimeBasedRollingPolicy but acts only as * RollingPolicy and NOT as TriggeringPolicy. * * This allows us to combine this class with a size-based triggering policy * (decision to roll based on size, name of rolled files based on time) * */ public class CustomTimeBasedRollingPolicy implements RollingPolicy { TimeBasedRollingPolicy timeBasedRollingPolicy = new TimeBasedRollingPolicy(); /** * Set file name pattern. * @param fnp file name pattern. */ public void setFileNamePattern(String fnp) { timeBasedRollingPolicy.setFileNamePattern(fnp); } /* public void setActiveFileName(String fnp) { timeBasedRollingPolicy.setActiveFileName(fnp); }*/ /** * Get file name pattern. * @return file name pattern. */ public String getFileNamePattern() { return timeBasedRollingPolicy.getFileNamePattern(); } public RolloverDescription initialize(String file, boolean append) throws SecurityException { return timeBasedRollingPolicy.initialize(file, append); } public RolloverDescription rollover(String activeFile) throws SecurityException { return timeBasedRollingPolicy.rollover(activeFile); } public void activateOptions() { timeBasedRollingPolicy.activateOptions(); } } package com.mypack.rolling; import org.apache.log4j.helpers.OptionConverter; import org.apache.log4j.Appender; import org.apache.log4j.rolling.TriggeringPolicy; import org.apache.log4j.spi.LoggingEvent; import org.apache.log4j.spi.OptionHandler; /** * Copy of org.apache.log4j.rolling.SizeBasedTriggeringPolicy but able to accept * a human-friendly value for maximumFileSize, eg. "10MB" * * Note that sub-classing SizeBasedTriggeringPolicy is not possible because that * class is final */ public class CustomSizeBasedTriggeringPolicy implements TriggeringPolicy, OptionHandler { /** * Rollover threshold size in bytes. */ private long maximumFileSize = 10 * 1024 * 1024; // let 10 MB the default max size /** * Set the maximum size that the output file is allowed to reach before * being rolled over to backup files. * * <p> * In configuration files, the <b>MaxFileSize</b> option takes an long * integer in the range 0 - 2^63. You can specify the value with the * suffixes "KB", "MB" or "GB" so that the integer is interpreted being * expressed respectively in kilobytes, megabytes or gigabytes. For example, * the value "10KB" will be interpreted as 10240. * * @param value * the maximum size that the output file is allowed to reach */ public void setMaxFileSize(String value) { maximumFileSize = OptionConverter.toFileSize(value, maximumFileSize + 1); } public long getMaximumFileSize() { return maximumFileSize; } public void setMaximumFileSize(long maximumFileSize) { this.maximumFileSize = maximumFileSize; } public void activateOptions() { } public boolean isTriggeringEvent(Appender appender, LoggingEvent event, String filename, long fileLength) { try { Thread.sleep(1); } catch (InterruptedException e) { e.printStackTrace(); } boolean result = (fileLength >= maximumFileSize); return result; } } and the log4j.xml: <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="true"> <appender name="console" class="org.apache.log4j.ConsoleAppender"> <param name="Target" value="System.out" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d [%t] %-5p %c -> %m%n" /> </layout> </appender> <appender name="FILE" class="org.apache.log4j.rolling.RollingFileAppender"> <param name="file" value="C:/temp/test/test_log4j.log" /> <rollingPolicy class="com.mypack.rolling.CustomTimeBasedRollingPolicy"> <param name="fileNamePattern" value="C:/temp/test/test_log4j-%d{yyyy-MM-dd-HH_mm_ss}.log" /> </rollingPolicy> <triggeringPolicy class="com.mypack.rolling.CustomSizeBasedTriggeringPolicy"> <param name="MaxFileSize" value="200KB" /> </triggeringPolicy> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d [%t] %-5p %c -> %m%n" /> </layout> </appender> <logger name="com.mypack.myrun" additivity="false"> <level value="debug" /> <appender-ref ref="FILE" /> </logger> <root> <priority value="debug" /> <appender-ref ref="console" /> </root> </log4j:configuration>

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• WPF Lookless Control Events

  - by Scott

  I have the following class: public class LooklessControl : Control { public List<int> IntList { get; private set; } public int CurrentInt { get; private set; } private int _index = 0; static LooklessControl() { DefaultStyleKeyProperty.OverrideMetadata(typeof(LooklessControl), new FrameworkPropertyMetadata(typeof(LooklessControl))); } public LooklessControl() { IntList = new List<int>(); for (int i = 0; i < 10; i++) { IntList.Add(i); } CurrentInt = IntList[_index]; } public static readonly RoutedCommand NextItemCommand = new RoutedCommand("NextItemCommand", typeof(LooklessControl)); private void ExecutedNextItemCommand(object sender, ExecutedRoutedEventArgs e) { NextItemHandler(); } private void CanExecuteNextItemCommand(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } public static readonly RoutedCommand PrevItemCommand = new RoutedCommand("PrevItemCommand", typeof(LooklessControl)); private void ExecutedPrevItemCommand(ExecutedRoutedEventArgs e) { PrevItemHandler(); } private void CanExecutePrevItemCommand(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } public static readonly RoutedEvent NextItemEvent = EventManager.RegisterRoutedEvent("NextItemEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(LooklessControl)); public event RoutedEventHandler NextItem { add { AddHandler(NextItemEvent, value); } remove { RemoveHandler(NextItemEvent, value); } } private void RaiseNextItemEvent() { RoutedEventArgs args = new RoutedEventArgs(LooklessControl.NextItemEvent); RaiseEvent(args); } public static readonly RoutedEvent PrevItemEvent = EventManager.RegisterRoutedEvent("PrevItemEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(LooklessControl)); public event RoutedEventHandler PrevItem { add { AddHandler(PrevItemEvent, value); } remove { RemoveHandler(PrevItemEvent, value); } } private void RaisePrevItemEvent() { RoutedEventArgs args = new RoutedEventArgs(LooklessControl.PrevItemEvent); RaiseEvent(args); } private void NextItemHandler() { _index++; if (_index == IntList.Count) { _index = 0; } CurrentInt = IntList[_index]; RaiseNextItemEvent(); } private void PrevItemHandler() { _index--; if (_index == 0) { _index = IntList.Count - 1; } CurrentInt = IntList[_index]; RaisePrevItemEvent(); } } The class has a default style, in Generic.xaml, that looks like this: <Style x:Key="{x:Type local:LooklessControl}" TargetType="{x:Type local:LooklessControl}"> <Setter Property="Height" Value="200"/> <Setter Property="Width" Value="90"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:LooklessControl}"> <Border BorderBrush="Black" BorderThickness="1" Padding="2"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="20"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <Rectangle Grid.Row="0" Fill="LightGray"/> <Rectangle Grid.Row="1" Fill="Gainsboro"/> <Grid Grid.Row="0"> <Grid.ColumnDefinitions> <ColumnDefinition Width="10"/> <ColumnDefinition Width="*"/> <ColumnDefinition Width="10"/> </Grid.ColumnDefinitions> <Path Grid.Column="0" x:Name="pathLeftArrow" Data="M0,0.5 L1,1 1,0Z" Width="6" Height="14" Stretch="Fill" HorizontalAlignment="Center" Fill="SlateBlue"/> <TextBlock Grid.Column="1" Name="textBlock" Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=CurrentInt}" HorizontalAlignment="Center" VerticalAlignment="Center" FontFamily="Junction" FontSize="13"/> <Path Grid.Column="2" x:Name="pathRightArrow" Data="M0,0 L1,0.5 0,1Z" Width="6" Height="14" Stretch="Fill" HorizontalAlignment="Center" Fill="SlateBlue"/> </Grid> <ListBox Grid.Row="1" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Background="Transparent" ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=IntList}"/> </Grid> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> How do I make it so that when the user clicks on pathLeftArrow it fires LooklessControl.PrevItemCommand, or or they click on pathRightArrow and it fires LooklessControl.NextItemCommand, or they click on an item in the ListBox and LooklessControl is notified of the newly selected item? In other words, without adding x:Class to the top of Generic.xaml and thus creating a code-behind file for it, which I assume you wouldn't want to do, how do you handle events for elements in your xaml that don't have a Command property (which is just about everything other than a Button)? Should LooklessControl have it's own XAML file (much like what you get when you create a new UserControl) associated with it that Generic.xaml just pulls in as a MergedDictionar as its default template? Or is there some other acknowledged way to do what I'm trying to do?

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