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  • Getting data from a ListView into an array

    - by Joe
    I have a ListView control on my form set up like this in details mode: What I would like to do, is get all the values of the data cells when the user presses the Delete booking button. So using the above example, my array would be filled with this data: values(0) = "asd" values(1) = "BS1" values(2) = "asd" values(3) = "21/04/2010" values(4) = "2" This is my code so far: Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim items As ListView.SelectedListViewItemCollection = _ Me.ManageList.SelectedItems Dim item As ListViewItem Dim values(0 To 4) As String Dim i As Integer = 0 For Each item In items values(i) = item.SubItems(i).Text i = i + 1 Next End Sub But only values(0) gets filled with the first data cell of the selection (in this case "asd") and the rest of the array entries are blank. I have confirmed this with a breakpoint and checked the array entries myself. I'm REALLY lost on this, and have been trying for about an hour now. Any help would be appreciated, thanks :) Also please note that there can only be one row selection at once. Thanks.

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  • How to tell process id within Python

    - by R S
    Hey, I am working with a cluster system over linux (www.mosix.org) that allows me to run jobs and have the system run them on different computers. Jobs are run like so: mosrun ls & This will naturally create the process and run it on the background, returning the process id, like so: [1] 29199 Later it will return. I am writing a Python infrastructure that would run jobs and control them. For that I want to run jobs using the mosrun program as above, and save the process ID of the spawned process (29199 in this case). This naturally cannot be done using os.system or commands.getoutput, as the printed ID is not what the process prints to output... Any clues? Edit: Since the python script is only meant to initially run the script, the scripts need to run longer than the python shell. I guess it means the mosrun process cannot be the script's "son process". Any suggestions? Thanks

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  • What is the best book in client server programming ?

    - by Nayef
    What is the best "new" book in client server programming with C#? I mean principles of inter-network architecture and communication protocols. Open systems and interoperability. Case studies of particular protocols from network layer and above. Socket programming. Remoting. Selected examples of networked client-server applications such as e-mail, news, file-transfer, HTTP. Client-Server Programming Project(s). Using APIs. Software tools and environments.

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  • How do you set page level, page-SPECIFIC javascript events using a ContentPlaceHolder?

    - by donde
    I previously asked how to include Javascript in my page when I split the page into a MasterPage and ContentPlaceHolder (.NET 2.0 app) The issue was I only wanted the javascript functions on THAT page so I couldn't just put them on the masterpage. Based on the answers, I will inlcude common fucntions through MasterPage and can put the page-specific function right on the content page. However, 1 question remains: Events. I have 2 Javascript functions that I wanted to load when the page loads ala the HTML below. How do you load javascript page events on the specific content page? Or in the case below, the OnKeyPress event? <body onkeypress="javascript:keypressed();" onload="javascript:setDivVisibility();">

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  • jQuery object are immutable?

    - by Daniel
    Hello a new noob on jQuery here and I was wondering if jQuery objects are immutable. For example: var obj1 = $("<tag></tag>"); var obj2 = obj1.append("something"); Will obj1 and obj2 be the same meaning obj2 will reference obj1? UPDATE: The above example kind of scratches the surface of what i want to know, a more accurate question is : If i chain function from the jQuery api will they return the same object or a new one (as the case with strings in Java)?

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  • Is it possible, with simple F# pattern matching transformations, to ignore unmatched values without

    - by Phobis
    So, I previously asked this question: http://stackoverflow.com/questions/2820234/can-someone-help-me-compare-using-f-over-c-in-this-specific-example-ip-address I was looking at the posted code and I was wondering if this code could be written without it producing a warning: let [|a;b;c;d|] = s.Split [|'.'|] IP(parseOrParts a, parseOrParts b, parseOrParts c, parseOrParts d) Is it possible to do something for the match _ pattern ot ignore? Without adding in something like Active Patterns? i want to keep the code as simple as possible... can I do this without drastically changing this code? NOTE: Warning is as follows Warning Incomplete pattern matches on this expression. For example, the value '[|_; _; _; _; _|]' may indicate a case not covered by the pattern(s).

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  • TextField breaking MOUSE_OVER in as3: only after moving it!

    - by Franz
    I'm having a really weird problem with the MOUSE_OVER event. I'm building dynamic tabs representing mp3 songs containing textfields with info and a dynamic image for the cover art. I am trying to get a simple MOUSE_OVER working over the whole tab, such that you can select the next song to play. I am using a Sprite with alpha 0 that overlays my whole tab (incl. the textFields) as a Listener for MOUSE_OVER and _OUT... I've checked by setting the alpha to something visible and it indeed covers my tab and follows it around as I move it (just making sure I'm not moving the tab without moving the hotspot). Also, I only create it once my cover art is loaded, ensuring that it will cover that too. Now, when the tab is in the top position, everything is dandy. As soon as I move the tab to make space for the next tab, the textFields break my roll behaviour... just like that noob mistake of overlaying a sprite over the one that you're listening for MouseEvents on. But... the roll area is still on top of the field, I've set selectable and mouseEnabled to false on the textFields... nothing. It is as if the mere fact of moving the whole tab now puts the textField on top of everything in my tab (whereas visually, it's still in its expected layer). I'm using pixel fonts but tried it with system fonts, same thing... at my wits end here. public function Tab(tune:Tune) { _tune = tune; mainSprite = new Sprite(); addChild(mainSprite); drawBorder(); createFormat(); placeArtist(); placeTitle(); placeAlbum(); coverArt(); } private function placeButton():void { _button = new Sprite(); _button.graphics.beginFill(0xFF000,0); _button.graphics.drawRect(0,0,229,40); _button.graphics.endFill(); _button.addEventListener(MouseEvent.MOUSE_OVER, mouseListener); _button.addEventListener(MouseEvent.MOUSE_OUT, mouseListener); _button.buttonMode = true; mainSprite.addChild(_button); } private function mouseListener(event:MouseEvent):void { switch(event.type){ case MouseEvent.MOUSE_OVER : hilite(true); break; case MouseEvent.MOUSE_OUT : hilite(false); break; } } private function createFormat():void { _format = new TextFormat(); _format.font = "FFF Neostandard"; _format.size = 8; _format.color = 0xFFFFFF; } private function placeArtist():void { var artist : TextField = new TextField(); artist.selectable = false; artist.defaultTextFormat = _format; artist.x = 41; artist.y = 3; artist.width = 135; artist.text = _tune.artist; artist.mouseEnabled = false; mainSprite.addChild(artist); } private function placeTitle():void { var title : TextField = new TextField(); title.selectable = false; title.defaultTextFormat = _format; title.x = 41; title.y = 14; title.width = 135; title.text = _tune.title; title.mouseEnabled = false; mainSprite.addChild(title); } private function placeAlbum():void { var album : TextField = new TextField(); album.selectable = false; album.defaultTextFormat = _format; album.x = 41; album.y = 25; album.width = 135; album.text = _tune.album; album.mouseEnabled = false; mainSprite.addChild(album); } private function drawBorder():void { _border = new Sprite(); _border.graphics.lineStyle(1, 0x545454); _border.graphics.drawRect (0,0,229,40); mainSprite.addChild(_border); } private function coverArt():void { _image = new Sprite(); var imageLoader : Loader = new Loader(); _loaderInfo = imageLoader.contentLoaderInfo; _loaderInfo.addEventListener(Event.COMPLETE, coverLoaded) var image:URLRequest = new URLRequest(_tune.coverArt); imageLoader.load(image); _image.x = 1.5; _image.y = 2; _image.addChild(imageLoader); } private function coverLoaded(event:Event):void { _loaderInfo.removeEventListener(Event.COMPLETE, coverLoaded); var scaling : Number = IMAGE_SIZE / _image.width; _image.scaleX = scaling; _image.scaleY = scaling; mainSprite.addChild (_image); placeButton(); } public function hilite(state:Boolean):void{ var col : ColorTransform = new ColorTransform(); if(state){ col.color = 0xFFFFFF; } else { col.color = 0x545454; } _border.transform.colorTransform = col; }

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  • Treeview DatafieldParentID Bind to Object whose property is a another object

    - by user228777
    I am trying to bind Generic collection to a Rad Treeview control. In following case CategoryCollection Returns collection of Category Object, which has bunch of properties and A Parent property which is a object and this parent object Has Id and text properties. What I am trying to do is: I want to Bind DataFieldParentID of the tree view to CategoryCollection.Parent.Id. How do I do that? Dim tvCategory As RadTreeView = DirectCast(cboCategory.Items(0).FindControl("tvCategory"), RadTreeView) With tvCategory .DataSource = CategoryCollection .DataTextField = "Name" .DataValueField = "ID" .DataFieldID = "ID" .DataFieldParentID = "Parent.ID" .DataBind() End With Thank You

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  • Django: order by count of a ForeignKey field?

    - by AP257
    This is almost certainly a duplicate question, in which case apologies, but I've been searching for around half an hour on SO and can't find the answer here. I'm probably using the wrong search terms, sorry. I have a User model and a Submission model. Each Submission has a ForeignKey field called user_submitted for the User who uploaded it. class Submission(models.Model): uploaded_by = models.ForeignKey('User') class User(models.Model): name = models.CharField(max_length=250 ) My question is pretty simple: how can I get a list of the three users with the most Submissions? I trued creating a num_submissions method on the User model: def num_submissions(self): num_submissions = Submission.objects.filter(uploaded_by=self).count() return num_submissions and then doing: top_users = User.objects.filter(problem_user=False).order_by('num_submissions')[:3] but this fails, as do all the other things I've tried. Can I actually do it using a smart database query? Or should I just do something more hacky in the views file?

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  • What's a good way to detect wrap-around in a fixed-width message counter?

    - by Kristo
    I'm writing a client application to communicate with a server program via UDP. The client periodically makes requests for data and needs to use the most recent server response. The request message has a 16-bit unsigned counter field that is echoed by the server so I can pair requests with server responses. Since it's UDP, I have to handle the case where server responses arrive out of order (or don't arrive at all). Naively, that means holding on to the highest message counter seen so far and dropping any incoming message with a lower number. But that will fail as soon as we pass 65535 messages and the counter wraps back to zero. Is there a good way to detect (with reasonable probability) that, for example, message 5 actually comes after message 65,000? The implementation language is C++.

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  • Writing shorter code/algorithms, is more efficient (performance)?

    - by Carlos
    After coming across the code golf trivia around the site it is obvious people try to find ways to write code and algorithms as short as the possibly can in terms of characters, lines and total size, even if that means writing something like: n=input() while n>1:n=(n/2,n*3+1)[n%2];print n So as a beginner I start to wonder whether size actually matters :D. It is obviously a very subjective question highly dependent on the actual code being used, but what is the rule of thumb in the real world. In the case that size wont matter, how come then we don't focus more on performance rather than size?

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  • Rails - how do you create a user index page like stack overflows with multiple tabs whilst keeping t

    - by adam
    On stackoverflow in the users profile area there are many tabs which all display differing information such as questions asked and graphs. Its the same view though and im wondering hows its best to achieve this in rails whilst keeping the controller skinny and logic in the view to a minimum. def index @user = current_user case params[:tab_selected] when "questions" @data = @user.questions when "answers" @sentences = @user.answers else @sentences = @user.questions end respond_to do |format| format.html # index.html.erb nd end but how do i process this in the index view without a load of if and else statments. And if questions and answers are presented differently whats the best way to go about this.

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  • Extract multiple values from one column in MySql

    - by Neil
    I've noticed that MySql has an extensive search capacity, allowing both wildcards and regular expressions. However, I'm in somewhat in a bind since I'm trying to extract multiple values from a single string in my select query. For example, if I had the text "<span>Test</span> this <span>query</span>", perhaps using regular expressions I could find and extract values "Test" or "query", but in my case, I have potentially n such strings to extract. And since I can't define n columns in my select statement, that means I'm stuck. Is there anyway I could have a list of values (ideally separated by commas) of any text contained with span tags? In other words, if I ran this query, I would get "Test,query" as the value of spanlist: select <insert logic here> as spanlist from HtmlPages ...

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  • mySQL query : working with INTERVAL and CURDATE

    - by Tristan
    Hello, i'm building a chart and i want to recieve data for each months Here's my first request which is working : SELECT s.GSP_nom AS nom, timestamp, AVG( v.vote + v.prix ) /2 AS avg FROM votes_serveur AS v INNER JOIN serveur AS s ON v.idServ = s.idServ WHERE s.valide =1 AND v.date > CURDATE() -30 GROUP BY s.GSP_nom ORDER BY avg DESC But, in my case i've to write 12 request to recieve datas for the 12 previous months, is there any trick to avoid writing : // example for the previous month AND v.date > CURDATE() -60 AND v.date < CURDATE () -30 I heard about INTERVAL, i went to the mySQL doc but i didn't manage to implement it. Any ideas / example of using INTERVAL please ? Thank you

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  • Why is passing a string literal into a char* arguament only sometimes a compiler error?

    - by Brian Postow
    I'm working in a C, and C++ program. We used to be compiling without the make-strings-writable option. But that was getting a bunch of warnings, so I turned it off. Then I got a whole bunch of errors of the form "Cannot convert const char* to char* in argmuent 3 of function foo". So, I went through and made a whole lot of changes to fix those. However, today, the program CRASHED because the literal "" was getting passed into a function that was expecting a char*, and was setting the 0th character to 0. It wasn't doing anything bad, just trying to edit a constant, and crashing. My question is, why wasn't that a compiler error? In case it matters, this was on a mac compiled with gcc-4.0.

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  • pyramid view redirection

    - by ascobol
    This question title may be slightly incorrect but I could not find a better one (yet). I'm trying to integrate Mozilla Persona (browserid) into a Pyramid application. The login process is: user can login on any page by clicking on the login button a popup then shows a login form when the users enters correct login/password, an ajax call is made by the popup to a pyramid view that checks users credentials, and calls pyramid remember function if the check succeeded the browserid javascript code then reloads the current page Now I want to handle the case of a new user subscribing to the web app and present a new view asking for a few more details (desired username, etc) Since the "remember" function is called by an ajax call from the popup, I cannot redirect the user the the "/newuser" page. So every view needs to redirect new users to the "/newuser" url whenever the remembered browserid has no corresponding user in the database. Is there a way to intercept user requests before calling a view to call the "new_user" view instead ? Or maybe my authentication approach is fundamentally incorrect and I should rely on another approach ?

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  • Using member variables inherited from a templated base class (C++)

    - by Aaron Becker
    I'm trying to use member variables of a templated base class in a derived class, as in this example: template <class dtype> struct A { int x; }; template <class dtype> struct B : public A<dtype> { void test() { int id1 = this->x; // always works int id2 = A<dtype>::x; // always works int id3 = B::x; // always works int id4 = x; // fails in gcc & clang, works in icc and xlc } }; gcc and clang are both very picky about using this variable, and require either an explicit scope or the explicit use of "this". With some other compilers (xlc and icc), things work as I would expect. Is this a case of xlc and icc allowing code that's not standard, or a bug in gcc and clang?

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  • What is the Software Development Lifecycle?

    - by j-t-s
    Our investor wants a SDLC. I've never written one before, and I don't have enough time to go and buy a book, or spend much time learning about them. From what I've been told about them, they consist of requirements (what needs to be done), and a list is done. Is this correct? Update: I have found this article which really helps to explain things in simple terms and very quickly. Not that I think an SDLC should be done quickly. In my case, I have no other option.

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  • .NET security: how to check if a method is allowed to execute under current user's perrmissions

    - by Gart
    Given an ASP.NET MVC Controller class declaration: public class ItemController : Controller { public ActionResult Index() { // ... } public ActionResult Details() { // ... } [Authorize(Roles="Admin, Editor")] public ActionResult Edit() { // ... } [Authorized(Roles="Admin")] public ActionResult Delete() { // .. } } I need to reflect a list of methods in this class which may be invoked with the current user's permissions. The [Authorized] attribute is specific to ASP.NET MVC, and this is only an example. I would prefer a universal solution for this problem which works for any .NET class. Please share some ideas of what could be done in this case.

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  • creating an options menu with quit application function

    - by Domen Tomažin
    Hello, I'm writing an application for android and I would like to insert an options menu, that would have only one function and that is to quit an application. My options_menu.xml looks like this (I created a new folder under res called menu - just like the instructions said): Than I added the following code to my java class file: @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.options_menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle item selection switch (item.getItemId()) { case R.id.quit: finish(); return true; default: return super.onOptionsItemSelected(item); } I also defined the @string/quit in values - strings.xml file, but it still says that there is an error: C:\Users\Domen\workspace\Lovne Dobe1.1\res\menu\options_menu.xml:3: error: Error: No resource found that matches the given name (at 'title' with value '@string/quit') So if anybody can help I would be very grateful.

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  • executing a class in remote jvm

    - by redzedi
    Hi All, I have a small test class that i want to run on a particular jvm that's already up and running (basically it's an web application running on Tomcat) . The reason i want to do this is i want to execute a small test class (with the main method and all) within that jvm so that i get the same environment (loaded and initialized classes) for my test class. Is it possible to indicate that ,say through a jvm parameter, that it should not initialize a new vm to execute my class but instead go and execute on the remote vm and show me the result here, on my console. So the local jvm acts as a kind of thin proxy ? I am not aware in case there are some tools that should make this possible ... also heard somewhere that java 6 jvm comes with an option like this , is that true ?? Please help me. Thanks,

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  • Cannot initialize non-const reference from convertible type

    - by Julien L.
    Hi, I cannot initialize a non-const reference to type T1 from a convertible type T2. However, I can with a const reference. long l; const long long &const_ref = l; // fine long long &ref = l; // error: invalid initialization of reference of // type 'long long int&' from expression of type // 'long int' Most problems I encountered were related to r-values that cannot be assigned to a non-const reference. This is not the case here -- can someone explain? Thanks.

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  • Flex 3 multiple upload progress monitoring

    - by Darko Z
    I have a Flex3 application which has to be capable of uploading multiple files and monitoring each files individual progress using a label NOT a progress bar. My problem is that a generic progress handler for the uploads has no way (that I know of) of indicating WHICH upload it is that is progressing. I know that a file name is available to check but in the case of this app the file name might be the same for multiple uploads. My question: With a generic progress handler how does one differentiate between 2 multiple uploads with the same file name? EDIT: answerers may assume that I am a total newb to Flex... because I am.

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  • TToolButton Height Grows with Style = tbsDropdown

    - by smartins
    I noticed that the height of a TToolButton increases when you set the button's Style to tbsDropdown. I can understand the width increasing, so the button has space to draw the down arrow, but I'm not sure a height increase is necessary. Steps to reproduce the issue (Delphi 2010, Windows 7 x64): Add TToolbar to a form, ShowCaptions=True Right click to add a button to the Toolbar Set button Style=tbsDropDown and notice the button grows in height The same height increase happens when there are images assigned to the toolbar, in which case there is already plenty more vertical space available in the button to draw the drop down. Here's a visual example: Is there a workaround for this without hacking the VCL, or is this hardcoded into the Windows control?

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  • gMaps suddenly stopped working : Can't find variable: G_NORMAL_MAP

    - by Luca
    hello! i inject a map on my div called "concessionario-map" with GMap, a jquery plugin. Gmap everything works fine until this morning. now the debugger says: ReferenceError: Can't find variable: G_NORMAL_MAP i just search on google and i read some similar situation, but i dont find a case like mine. please, can you help me? thanks a lot in advance :) (full code) $.getJSON("http://maps.google.com/maps/geo?q="+loc+"&key=ABQIAAAAgDXoBEgIn38xaRBBqo6ygxTDjF32IQ1zA0BVcGSuGouGRvo0kRRKiyipbCniJWSso2scatdz36K-Mg&sensor=false&output=json&callback=?",function(data, textStatus) { long = data.Placemark[0].Point.coordinates[0]; lat = data.Placemark[0].Point.coordinates[1]; console.log(data); $('#concessionario-map').gMap( { scrollwheel: false, latitude: lat, longitude: long, zoom: 15, markers: [{ latitude: lat, longitude: long }], icon: { image: "files/images/gmap_pin_orange.png", shadow: "files/images/gmap_pin_orange_shadow.png", iconsize: [26, 46], shadowsize: [28, 48], iconanchor: [12,46], infowindowanchor: [12, 0] } }) });

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