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• How do I have my apps dialog box pop up and take focus from the current running app?

  - by simba

  I know this type of thing is looked negatively upon but I write software for people with disabilities and sometimes good gui practices don't make sense. In this case, the user interacts with a assistive interface and under certain conditions, my control app needs to prompt the user with a question. My background process creates a dialog (I'm using wxwidgets wxDialog class) and calls Show(). The dialog box appears but it does not have focus (the application that the user was previously using keeps it). Since my users can't use mice, they can't simply click on the window. I've tried calling show and then followed by SetFocus(HWND) but that doesn't do it. What's the problem? Is this even possible? Window7. I'm thinking that it might have something to do with it being a dialog and not a full window (wxFrame). Any help is greatly appreciated.

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• Is there any way that I can draw fast a chart with too many series? [on hold]

  - by Maryam Bagheri

  I have a project that need to draw a fast chart with many series. I must change start position of drawing to a favor position when user want. .Net Chart is slow in lots of series. I wanted to use this library: http://www.codeproject.com/Articles/32836/A-simple-C-library-for-graph-plotting?msg=4109664#xx4109664xx but loading speed is too slow when count of series increases. When I plot the chart, I must invalidate the chart for updates, drawing speed will be too slow if there are too many series. I need at least 900 series in a chart for this project. I wanted to use multiple layer series to decrease invalidate rate with the idea: http://www.codeproject.com/Articles/84833/Drawing-multiple-layers-without-flicker I do not know this idea would be helpful. I tested LightningChart control but it could not help me.

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• Controling images of nodes in a TreeView (C#)

  - by ET

  Hi, I am pretty new with GUI, and I guess that is a silly question, but I am stuck... I am trying to make a folder explorer using TreeView control. now, I added an ImageList with two images - one for a folder and the other for selected folder. I used the 'BeforeExpand' event to change the icon of the current node (folder). The problem is that I dont know how to change it back when the user selects other folder... what event can I use? Maybe I dont use it right... ? Thanks guys :)

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• DropDownList always does full-page postback, the first time it fires.

  - by CodexArcanum

  I have an ASP.NET page using the AJAX library. There is a dropdownlist inside an UpdatePanel, which on index changing is supposed to update a different UpdatePanel to modify a grid control. But after the page first comes up, and you adjust the ddl, the entire page postbacks, followed by a (correct) partial postback. After this one time, every other usage of the ddl performs correctly, trigger partial postbacks. Both the panel and the ddl are being added from code. The UP is Conditional updates and ChildrenAsTriggers = true. The dropdownlist is AutoPostBack true and has an event set up on SelectedIndexChanged. So what is going on? I've tried adjusting every setting I can think of and still the page completely refreshes once, then works fine after that.

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• What should I do or learn to better prepare myself for a co-op position?

  - by Chris Vinz

  I'm currently taking computer systems in a technical institute and I will start looking for a coop job by next September. Since summer vacation is only a few weeks away, I was wondering what I should learn or do to help me land a job and do well in it. I'm pretty sure I'm ahead of most of my classmates since I got around 1.5 years "head start." For now, I'm planning to learn how to use source control (git - for no reason really) and was actually thinking of learning Scheme through SICP and maybe build something nice with it at the end. On the other hand, I'm wondering if it's better to expand on what I know right now and I'm thinking of C++ since I enjoy it a lot more than others like Java. Can I get advice on this? thanks!

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• Hook key & key combinations from keyboard with Qt 4.6

  - by Viet

  Let's say I have a window-less application which has only an icon on the Taskbar (Windows, Mac OS X & Linux). I want it to capture some key & key combinations, let's say Right Control + Right Shift. Upon keying in correct, combination, it will do something, say take screenshot. I can do window-less app, icon on the Taskbar and screen capture but I don't know how to monitor keyboard globally for key combinations. Please kindly advise. Any help or hint is greatly appreciated! Thanks in advance!

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• ORM Against a Service-Wrapped Data Source

  - by blaster

  We are tasked with migrating an existing set of entities (currently POCOs persisted with NHibernate against an MSSQL database) to now persist to some kind of web service (yet to be built, either RESTful or SOAP-based, and that we control). I like how NHibernate encapsulates the persistence concerns and lets us maintain a logic-rich, persistence-agnostic domain model. Is there any way to make NHibernate talk to a web service at the back end instead of a SQL database directly? In other words, can "service instead of SQL database" be treated as a persistence implementation detail and allow us to continue to use NHibernate? Am I asking the right question? :)

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• Android: Communication with host computer

  - by dannyn382

  I am looking for ideas as to how all of you can think to solve this issue. I am going to be using an Android Tablet as basically a touch screen input for a project. I need to be able to control servos and solenoids and such, so I will be using a Raspberry Pi to do this. I am looking for ideas on how to get the tablet and the Raspberry Pi to talk. Here are a few that I have though of so far. Use Wifi (which I really do not want to, Ethernet would be okay) to ssh into the Raspberry Pi (with an external library) and run scripts that way from the Android app. Use a com port for Android (maybe Andropod if there hardware becomes available?) and run scripts on the Raspberry Pi. Those are probably two of the "best" ideas that I can think of for now. Can anyone think of any other "better" ideas? Thanks in advance for the help, Dan

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• What workflow should I use for JavaScript editing?

  - by Patrick

  Warning: I have very little JavsScript experience. In my past programming experience, I usually have a standalone interpreter/compiler, a text editor and a command line to compile/run my software or my tests (I love test driven development). I really like it this way, since I have the feeling of being in complete control over the tools. However, editing JavaScript I need to put statements in a text file , open my web browser and click on reload. I don't feel comfortable with it, as I cannot really see what is going on (besides some alert boxes). Can you suggest me (I'm on a Mac) another workflow? Perhaps with a debugger? Is there a standalone JavaScript interpreter?

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• ASP.Net: Expiring a page when navigating back

  - by K2so

  Basically all pages on this site I am building cannot be accessed when the user clicks on "Back" (or with key control) in the browser, and the page should expire if one is trying to navigate back in history. I put into Global.asax::Application_BeginRequest Response.Cache.SetCacheability(HttpCacheability.NoCache) Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1)) Response.Cache.SetValidUntilExpires(False) Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches) Response.Cache.SetNoStore() This would clear out the cache and disallow going back to any pages when the user is logged out, but doesn't do the job while the user is logged in. I saw posts where people suggested using a javascript approach, by calling History.Forward(1) on the page. But I wouldn't like to do this, as it will require javascript enabled to work (which user can disable). Appreciate any suggestions.

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• What features can I use during log in/out

  - by thecoshman

  I know that this question is going to be painfully vague, but here it is any way. I have made an small console application designed to be run on Windows XP Pro computers. It will be run at log in and log out. The command to run this program will be set via GPO and will include command line operators to control what data the program sends. I have used a few built in C# classes to find out information about the computer, which is then sent of to a server as a web request. I need to know which of the following will have issues on a restricted user account on a domain. Enviroment ManagementObjectSearcher ManagmentObjectCollection System.Diagnostics.PerformanceCounter <-- side note, this class dosent seem to accept be saying using System.Diagnostics ComputerInfo WebRequest

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• ASP.NET Template Selector/Builder - Dynamic CMS

  - by Ugene

  I am currently building my own CMS for various reasons that could take a long to explain... However i am looking for a dynamic solution to create templates for pages within the CMS and all areas must be editable via the administration area, maybe large text areas broken into multiple areas, text and image area on a page etc. Following on from the above i would like to create the following: Create a new page (selecting a pre-defined template like below) http://img525.imageshack.us/img525/9872/nestedpages.png and then upon editing the page it would have created as many text editors required for each editable region or a file upload control for an image area for example. i am thinking of using nested masterpages for the design elements, just unsure the best-practice way to achieve the above (db structure etc) I somehow hope this provides enough information but are happy to answer any questions you may have. Thanks

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• Learning to work with audio in C++

  - by Skilldrick

  My degree was in audio engineering, but I'm fairly new to programming. I'd like to learn how to work with audio in a programming environment, partly so I can learn C++ better through interesting projects. First off, is C++ the right language for this? Is there any reason I shouldn't be using it? I've heard of Soundfile and some other libraries - what would you recommend? Finally, does anyone know of any good tutorials in this subject? I've learnt the basics of DSP - I just want to program it! EDIT: I use Windows. I'd like to play about with real-time stuff, a bit like Max/MSP but with more control.

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• databinding to self without code

  - by jcollum

  I'm building a UserControl in WPF. The control has two properties, Title and Description, that I'd like to bind to two textblocks. Seems real straightforward, and I got it working, but I'm curious about something. To get it to work I had to add this code: void CommandBlock_Loaded(object sender, RoutedEventArgs e) { this.DataContext = this; } My bindings look like this: <TextBlock Text="{Binding Title}" Width="100" ... /> <TextBlock Text="{Binding Description}" Width="100" ... /> What I'm wondering is how come I couldn't get it to work without the this.DataContext = this; and instead use DataContext="{Binding RelativeSource={RelativeSource Self}}" (in the UserControl element of the markup)? I'm sure I'm missing something about DataContexts but don't know what.

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• Should i use TabContainer for multiple pages?

  - by Tim

  I'm considering if it is a good idea to use an ASP.Net TabContainer-Control in the way that every TabPanel contains content of a different page. For example: Next i want to implement in my application is the masterdata management. Normally i would create one aspx page for every masterdata-table (f.e. Customer - MD_Customer.aspx). Then i would add a link into my Menu to this page. Now i'm thinking of creating one aspx page for all(Masterdata.aspx) with a Tabcontainer and an UpdatePanel for every type of Masterdata. The link it the menu could have an additional MDType as URL-Parameter. My main concerns are related to performance(one "page" for every TabPanel currently means 7 "pages" in one) and maintainability because of increasing complexity. Is it a good approach or a bad idea? Thanks

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• Unable to bind in asp.net grid Template Column

  - by OneSmartGuy

  I am having trouble accessing the data field. I receive the error: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. I can get the value but using <%# getOpenJobs((string)Eval("ParentPart")) % but I need to use it in the if to display a certian picture if it passes the condition. Is there a better way to do this or am i just missing something simple? <telerik:GridTemplateColumn UniqueName="hasOpenJobs" HeaderText=""> <ItemTemplate> <% if (getOpenJobs((string)Eval("ParentPart")) > 1) { %> <img src="../images/job-icon.gif" alt="Open Jobs" /> <%} %> </ItemTemplate> </telerik:GridTemplateColumn>

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• Display selectedAnnotation info

  - by elife_iPhone

  When I use this: - (void)mapView:(MKMapView *)myMapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control { NSLog(@"SelectedAnnotations is %@", myMapView.selectedAnnotations); } It Displays this in the log. "<Annotation: 0x586cdb0>" Now this is a weird question, but how do I get the info from this Annotation? I have lost my mind. This is what is in the annotation. myAnnotation = [[Annotation alloc] init]; myAnnotation.dealName=[NSString stringWithFormat:@"%@",[tempValue objectForKey:@"name"]]; myAnnotation.subName=[NSString stringWithFormat:@"Price: $%@",[tempValue objectForKey:@"price"]]; myAnnotation.latitude = [NSNumber numberWithDouble:[[tempValue objectForKey:@"dealLatitude"] doubleValue]]; myAnnotation.longitude = [NSNumber numberWithDouble:[[tempValue objectForKey:@"dealLongitude"] doubleValue]]; myAnnotation.dealId = [NSNumber numberWithInt:[ [tempValue objectForKey:@"dId"] intValue ]]; Thanks for your help.

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• WPF Creating an instance of a class in xaml

  - by Cloverness

  Hi, I have a problem with creating the instance of a class in xaml file. I thought you can do it like this: in the resource part of the user control and then use it in the xaml file (for example bind to it). But even tough the class I created is located in the same namespace it says that: "The type was not found. Verfiy that all assemblies were built, etc". How to get it right? is there another method? Thanks for suggestions.

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• Allow users to enter a variable length list of items in asp.net form

  - by EJB

  I need to let my users enter a variable length list of items into something that looks like a grid view (or a series of standard text boxes stacked vertically). Each item could be a few characters or a few hundred characters long, and I just want them to enter a "sentence", and then tab to the next row, and always having another blank one ready to go at the bottom of the list. I don't want to save any data to my SQL Server DB until they enter the entire list and then click on a "save all" button. When they hit the "save all" button they will be given a preview screen where the data will be presented as standard HTML ordered list. If they confirm/save, then each row of the grid will then be saved as a separate row into my SQL Server database (with an index to remember the order). What ASP.Net (or Jquery/javascript) UI control would be the best to use in this situation?

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• How to find which annotation send showDetails?

  - by Voloda2

  How to find which annotation send showDetails? MKPinAnnotationView* customPinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:BridgeAnnotationIdentifier] autorelease]; customPinView.pinColor = MKPinAnnotationColorPurple; customPinView.animatesDrop = YES; customPinView.canShowCallout = YES; // add a detail disclosure button to the callout which will open a new view controller page // // note: you can assign a specific call out accessory view, or as MKMapViewDelegate you can implement: // - (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control; // UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; [rightButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside]; customPinView.rightCalloutAccessoryView = rightButton; return customPinView; - (void)showDetails:(id)sender { some code }

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• jQuery Photo Search Results Pagination using AJAX and JSON

  - by Mark Richman

  I have a "photo search" page that needs to present search results in a 5x5 grid of photo thumbnails. I'd like to populate this grid using the JSON results of a jQuery $.ajax() call to my ASP.NET web service. Where I'm struggling is with pagination, where clicking [First][Prev][1][2][3]...[20][21][Next][Last] will call back again via ajax and repopulate the results with the appropriate images. So I need to find a solution to both the pagination control itself and the search results. Is there a jQuery plugin for this, or something I can easily adapt for my purposes?

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• svn stat says folder uncontrolled, but won't let me svn add it!

  - by user246114

  Hi, Running into a weird problem with svm. I do svn stat in my controlled directory, lists something like: ? myproject/foo ? myproject/zoo so I do: svn add myproject/zoo and then I get this message back: svn: warning: 'myproject/zoo' is already under version control I don't get it, why is it showing it as uncontrolled then? I tried running svn cleanup, svn update, nothing though. I am also looking at my svn project in tracker, and I don't see the /zoo folder as present. What can I do to convince svn it's not really added? Thanks

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• Is there any real advantage to use zend ce server over just referencing (include) the zend framework library?

  - by Marcos Roriz

  Hi, I'm new to PHP frameworks, and currently I'm trying Zend Framework (ZF). I'm old fashioned when it comes to installing software, I like to install apache/mysql/php all separetely since I find easier and it gives me more control of it. It seems that the "encouraged" way to develop with Zend Framework is using the Zend (CE) Server. I personally don't like this idea of a app install everything else (PHP/Apache and so on). From what I've seen if I include Zend Framework Library in php.ini path I'm ready to go. So is there any real advantage to use the Full Zend (CE) Server??

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• Dropdownlist AppendDataboundItems (first item to be blank)

  - by zohair

  Hi, I have a drop down list inside an update panel that is populated on postback from a sql data source. It has a parameter which is another control. I sometimes need multiple postbacks, but what happens is that each time the update panel refreshes, items are added to the dropdownlist. So the dropdown list ends up having data that is incorrect, or repeated data. I have the AppendDataboundItems property set to true because I need the first item to be blank. How can I overcome this problem? Is there another way to have a blank first item? (This dropdown is in an asp.net2.0 web app, and codebehind is in c#) Thank you.

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• Dynamic SQL Rows & Columns...cells require subsequent query. Best approach?

  - by Pyrrhonist

  I have the following tables below City --------- CityID StateID Name Description Reports --------- ReportID HeaderID FooterID Description I’m trying to generate a grid for use in a .Net control (Gridview, Listview…separate issue about which will be the ‘best’ one to use for my purposes) which will assign the reports as the columns and the cities as the rows. Which cities get displayed is based on the state selected, and is easy enough SELECT * FROM CITIES WHERE STATEID=@StateID However, the user is able to select which reports are being generated for each City (Demographics, Sales, Land Area, etc.). Further, the resultant cells (City * Report) is a sub-query on different tables based on the city selected and the report. Ie. Column Sales selected yields SELECT * FROM SALES WHERE CITYID=@CityID I’ve programmed a VERY inelegant solution using multiple queries and brute-forcing the grid to be created (line by line, row by row creation of data elements), but I’m positive there’s got to be a better way of accomplishing this…? Any / all suggestions appreciated here as the brute force approach I’ve gotten is slow and cumbersome…and this will have to be used often by the client, so I’m not sure it’ll be acceptable in it’s current implementation.

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