Daily Archives

Articles indexed Wednesday March 24 2010

Page 111/131 | < Previous Page | 107 108 109 110 111 112 113 114 115 116 117 118  | Next Page >

  • Can I center a UIToolbar item?

    - by Ben
    I am putting a label on a UIToolbar (per this tip: http://stackoverflow.com/questions/333441/adding-a-uilabel-to-a-uitoolbar). But the toolbar has a button on the left side, and so flexible spaces throw the label off the center, which is where I'd like it to be. Can I somehow center this toolbar item so that it remains centered in the toolbar? (Already tried balancing the button with a dummy fixed space, no dice.) Thanks!

    Read the article

  • error handling with NSURLConnection sendSynchronousRequest

    - by Nnp
    how can i do better error handling with NSURLConnection sendSynchronousRequest? is there any way i can implement - (void)connection:(NSURLConnection *)aConn didFailWithError:(NSError *)error i have a nsoperation queue which is getting data in background thats why i have sync request. and if i have to implement async request then how can i wait for request to get complete. because that method can't proceed without data.

    Read the article

  • PInvokeStackImbalance -- C# with offreg.dll ( windows ddk7 )

    - by user301185
    I am trying to create an offline registry in memory using the offreg.dll provided in the windows ddk 7 package. You can find out more information on the offreg.dll here: MSDN Currently, while attempted to create the hive using ORCreateHive, I receive the following error: "Managed Debugging Assistant 'PInvokeStackImbalance' has detected a problem. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature." Here is the offreg.h file containing ORCreateHive: typedef PVOID ORHKEY; typedef ORHKEY *PORHKEY; VOID ORAPI ORGetVersion( __out PDWORD pdwMajorVersion, __out PDWORD pdwMinorVersion ); DWORD ORAPI OROpenHive ( __in PCWSTR lpHivePath, __out PORHKEY phkResult ); DWORD ORAPI ORCreateHive ( __out PORHKEY phkResult ); DWORD ORAPI ORCloseHive ( __in ORHKEY Handle ); The following is my C# code attempting to call the .dll and create the pointer for future use. using System.Runtime.InteropServices; namespace WindowsFormsApplication6 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } [DllImport("offreg.dll", CharSet = CharSet.Auto, EntryPoint = "ORCreateHive", SetLastError=true, CallingConvention = CallingConvention.StdCall)] public static extern IntPtr ORCreateHive2(); private void button1_Click(object sender, EventArgs e) { try { IntPtr myHandle = ORCreateHive2(); } catch (Exception r) { MessageBox.Show(r.ToString()); } } } } I have been able to create pointers in the past with no issue utilizing user32.dll, icmp.dll, etc. However, I am having no such luck with offreg.dll. Thank you.

    Read the article

  • convincing C# compiler that execution will stop after a member returns

    - by Sarah Vessels
    I don't think this is currently possible or if it's even a good idea, but it's something I was thinking about just now. I use MSTest for unit testing my C# project. In one of my tests, I do the following: MyClass instance; try { instance = getValue(); } catch (MyException ex) { Assert.Fail("Caught MyException"); } instance.doStuff(); // Use of unassigned local variable 'instance' To make this code compile, I have to assign a value to instance either at its declaration or in the catch block. However, Assert.Fail will never, to the best of my knowledge, allow execution to proceed past it, hence instance will never be used without a value. Why is it then that I must assign a value to it? If I change the Assert.Fail to something like throw ex, the code compiles fine, I assume because it knows that exception will disallow execution to proceed to a point where instance would be used uninitialized. So is it a case of runtime versus compile-time knowledge about where execution will be allowed to proceed? Would it ever be reasonable for C# to have some way of saying that a member, in this case Assert.Fail, will never allow execution after it returns? Maybe that could be in the form of a method attribute. Would this be useful or an unnecessary complexity for the compiler?

    Read the article

  • Setting WPF image source in code

    - by Torbjørn
    I'm trying to set a WPF image's source in code. The image is embedded as a resource in the project. By looking at examples I've come up with the below code. For some reason it doesn't work - the image does not show up. By debugging I can see that the stream contains the image data. So what's wrong? Assembly asm = Assembly.GetExecutingAssembly(); Stream iconStream = asm.GetManifestResourceStream("SomeImage.png"); PngBitmapDecoder iconDecoder = new PngBitmapDecoder(iconStream, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.Default); ImageSource iconSource = iconDecoder.Frames[0]; _icon.Source = iconSource; The icon is defined something like this: <Image x:Name="_icon" Width="16" Height="16" />

    Read the article

  • HTML divs can go outside browser window??

    - by Nelson
    I was playing around with ASP.NET Web Parts which has a "drop down" div. It's all the way to the right of the page. When I click to bring it up, it goes off the window. Usually anything off the viewable area will trigger the bottom scrollbars. How is this possible? See screenshot: http://i42.tinypic.com/4sejww.png

    Read the article

  • Streaming to the Android MediaPlayer

    - by Rob Szumlakowski
    Hi. I'm trying to write a light-weight HTTP server in my app to feed dynamically generated MP3 data to the built-in Android MediaPlayer. I am not permitted to store my content on the SD card. My input data is essentially of an infinite length. I tell MediaPlayer that its data source should basically be something like "http://localhost/myfile.mp3". I've a simple server set up that waits for MediaPlayer to make this request. However, MediaPlayer isn't very cooperative. At first, it makes an HTTP GET and tries to grab the whole file. It times out if we try and simply dump data into the socket so we tried using the HTTP Range header to write data in chunks. MediaPlayer doesn't like this and doesn't keep requesting the subsequent chunks. Has anyone had any success streaming data directly into MediaPlayer? Do I need to implement an RTSP or Shoutcast server instead? Am I simply missing a critical HTTP header? What strategy should I use here? Rob Szumlakowski

    Read the article

  • How do I tell eclipse to auto-generate or retain stubs when it starts and does a clean build?

    - by Erick Robertson
    I'm working on a Java application that uses JavaSpace. We're developing this in Eclipse. There are a couple instances where we are inserting code into the JavaSpace to do some more advanced space notification logic. Doing this requires that we generate stubs for the classes used within the JavaSpace. We use an external script to generate these stubs. The problem is that whenever Eclipse restarts, it does a clean build of the whole application. When it does this, it deletes all the stubs and we have to regenerate them. I would like to find a way to either tell Eclipse not to remove the _stub.class and _skel.class files within the bin folder where the .class files are placed. Either that, or somehow teach Eclipse to generate the stub files whenever it does a rebuild (and I suppose whenever the source files from which the stubs are generated changes). How can I do one of these, so that we don't have to manually build the stubs every time we start up Eclipse?

    Read the article

  • How to delete object with a mouse click ?

    - by Meko
    Hi all. I made a simple FlowChat Editor that creates rectangles and triangles and connects them to each other and shows the way from up to down. I can move this elements on screen too. I am now trying to create a button to delete the element which I clicked. There is problem that I can delete MyTriangle objects, but I can't delete MyRectangle objects. It deletes but not object which I clicked. I delete from first object to last. Here is my code: if (deleteObj) { if (rectsList.size() != 0) { for (int i = 0; i < rectsList.size(); i++) { MyRect rect = (MyRect) rectsList.get(i); if (e.getX() <= rect.c.x + 50 && e.getX() >= rect.c.x - 50 && e.getY() <= rect.c.y + 15 && e.getY() >= rect.c.y - 15) { rectsList.remove(rect); System.out.println("This is REctangle DELETED\n"); } } } if (triangleList.size() != 0) { for (int j = 0; j < triangleList.size(); j++) { MyTriangle trian = (MyTriangle) triangleList.get(j); if (e.getX() <= trian.c.x + 20 && e.getX() >= trian.c.x - 20 && e.getY() <= trian.c.y + 20 && e.getY() >= trian.c.y - 20) { triangleList.remove(trian); System.out.println("This is Triangle Deleted\n"); } } } Edit Here MyRectangle and MyTriangle classes public class MyRect extends Ellipse2D.Double { Point c; Point in; Point out; int posX; int posY; int width = 100; int height = 30; int count; public MyRect(Point center, Point input, Point output,int counter) { c = center; in = input; out = output; count=counter; } void drawMe(Graphics g) { // in.x=c.x+20; int posX = c.x; int posY = c.y; int posInX = in.x; int posInY = in.y; int posOutX = out.x; int posOutY = out.y; g.setColor(Color.MAGENTA); g.drawString(" S "+count ,posX-5, posY+5); g.setColor(Color.black); g.drawRect(posX-50, posY-15, width, height); g.setColor(Color.green); g.drawRect(posInX-3, posInY-9, 6, 6); g.setColor(Color.blue); g.drawRect(posOutX-3, posOutY+3, 6, 6); } } public class MyTriangle { Point c; Point in ; Point outYES ; Point outNO ; int posX; int posY; int count; public MyTriangle(Point center,Point input,Point outputYES,Point outputNO,int counter) { c = center; in = input; outYES = outputYES; outNO = outputNO; count=counter; } void drawMe(Graphics g) { int posX = c.x; int posY = c.y; int posInX=in.x; int posInY=in.y; int posOutYESX=outYES.x; int posOutYESY=outYES.y; int posOutNOX=outNO.x; int posOutNOY=outNO.y; int[] xPoints = {posX - 50, posX, posX + 50, posX}; int[] yPoints = {posY, posY - 30, posY, posY + 30}; g.setColor(Color.MAGENTA); g.drawString(" T "+count,posX-5, posY+5); g.setColor(Color.black); g.drawPolygon(xPoints, yPoints, 4); // draw input g.setColor(Color.green); g.drawRect(posInX-3,posInY-9, 6, 6); g.setColor(Color.blue); g.drawRect(posOutYESX-9,posOutYESY-3 , 6, 6); g.setColor(Color.red); g.drawRect(posOutNOX-3,posOutNOY+3 , 6, 6); } }

    Read the article

  • [Java] Force an unchecked call

    - by François Cassistat
    Hello, Sometimes, when using Java reflection or some special storing operation into Object, you end up with unchecked warnings. I got used to it and when I can't do anything about it, I document why one call is unchecked and why it should be considered as safe. But, for the first time, I've got an error about a unchecked call. This function : public <K,V extends SomeClass & SomeOtherClass<K>> void doSomethingWithSomeMap (Map map, V data); I thought that calling it this way : Map someMap = ...; SomeClass someData = ...; doSomethingWithSomeMap(someMap, someData); would give me an unchecked call warning. Jikes does a warning, but javac gives me an error : Error: <K,V>doSomethingWithSomeMap(java.util.Map<K,V>,V) in SomeClass cannot be applied to (java.util.Map,SomeClass) Any way to force it to compile with a warning? Thanks.

    Read the article

  • Free tools for analizing client-server comunication issues

    - by roberto
    Hi, we have some issues with a client-server based application and we would like to better understand client-server comunication without going to the software company that sold the application. At least we would like to perform the analysis in parallel. Can you suggest to me a dummy proof application that we can easily get and install to analise client-server traffic? Many thanks!

    Read the article

  • keyup bindings not working in Firefox

    - by Jarred
    Hi. You can see my project here - http://www.inluxphoto.com/custom/jsgallery/index.php I am attempting to make the left and right arrow keys move the slideshow. I was able to get it to work in all browsers by following exactly the instructions on the front page of jqueryfordesigners.com (sorry I am only allowed one link). However, it is necessary that the keyup be unbinded until the animation completes, so the user cannot do a quick double tap of the key, which breaks the show. This led me to the following function - function keyCommands() { //Bind Keys according to keyAssignments function keyCommandBind() { $(document.documentElement).bind('keyup', keyAssignments) } //Bind functions to specific keys function keyAssignments() { if (event.keyCode == 37) { leftArrow(); } if (event.keyCode == 39) { rightArrow(); } if (event.keyCode == 32) { spaceBar(); } } function leftArrow() { //unbind, do stuff, rebind } function rightArrow() { //unbind, do stuff, rebind } function spaceBar() { //unbind, do stuff, rebind } keyCommandBind(); } This works in all browsers except Firefox & Camino. Firebug tells me event (ie event.keyCode) is not defined. That's true, it's not defined, and I understand that. However I don't understand why, if it's not defined, does it work in all other browsers. How can I appropriately define this? Or, am I doing it wrong? Any help would be most appreciated, thanks for your time!

    Read the article

  • Why doesn't my javascript work after AJAX filling the HTML?

    - by alex
    $.ajax({ method:"get", url:"/details/", data:"id="+id, beforeSend:function(){ }, success:function(html){ $("#holder").html(html); } }); After I fill a div with a HTML from an AJAX call, this is my javascript at the top of /details/ <script type="text/javascript"> alert('hi'); </script> MY DETAILS HTML CONTENT GOES HERE But it's not working

    Read the article

  • Unix substr in shell script?

    - by KnockKnockWhosThere
    I have a string like sample.txt.pgp and I want to return sample.txt in a shell script. Is there a substr function? Like, if I did substr('sample.txt.pgp', -4, 0), is it supposed to return sample.txt? Right now it isn't, so I'm wondering if I have the syntax wrong, or maybe substr isn't a function?

    Read the article

  • MVC 2 Ajax.Beginform passes returned Html + Json to javascript function

    - by Joe
    Hi, I have a small partial Create Person form in a page above a table of results. I want to be able to post the form to the server, which I can do no problem with ajax.Beginform. <% using (Ajax.BeginForm("Create", new AjaxOptions { OnComplete = "ProcessResponse" })) {%> <fieldset> <legend>Fields</legend> <div class="editor-label"> <%=Html.LabelFor(model => model.FirstName)%> </div> <div class="editor-field"> <%=Html.TextBoxFor(model => model.FirstName)%> <%=Html.ValidationMessageFor(model => model.FirstName)%> </div> <div class="editor-label"> <%=Html.LabelFor(model => model.LastName)%> </div> <div class="editor-field"> <%=Html.TextBoxFor(model => model.LastName)%> <%=Html.ValidationMessageFor(model => model.LastName)%> </div> <p> <input type="submit" /> </p> </fieldset> <% } %> Then in my controller I want to be able to post back a partial which is just a table row if the create is successful and append it to the table, which I can do easily with jquery. $('#personTable tr:last').after(data); However, if server validation fails I want to pass back my partial create person form with the validation errors and replace the existing Create Person form. I have tried returning a Json array Controller: return Json(new { Success = true, Html= this.RenderViewToString("PersonSubform",person) }); Javascript: var json_data = response.get_response().get_object(); with a pass/fail flag and the partial rendered as a string using the solition below but that doesnt render the mvc validation controls when the form fails. SO RenderPartialToString So, is there any way I can hand my javascript the out of the box PartialView("PersonForm") as its returned from my ajax.form? Can I pass some addition info as a Json array so I can tell if its pass or fail and maybe add a message? UPDATE I can now pass the HTML of a PartialView to my javascript but I need to pass some additional data pairs like ServerValidation : true/false and ActionMessage : "you have just created a Person Bill". Ideally I would pass a Json array rather than hidden fields in my partial. function ProcessResponse(response) { var html = response.get_data(); $("#campaignSubform").html(html); } Many thanks in advance

    Read the article

  • Persistent Hashing of Strings in Python

    - by Chris S
    How would you convert an arbitrary string into a unique integer, which would be the same across Python sessions and platforms? For example hash('my string') wouldn't work because a different value is returned for each Python session and platform.

    Read the article

  • SQL one table aggrigation

    - by Lostdrifter
    Ok, for the last few days I have been attempting to find a method to pull a very important set of information form a table that contains what I call daily counts. I have a table that is setup as follows. person|company|prod1|prod2|prod3|gen_date Each company has more then one person, and each person can have different combination of products that they have purchased. What I have been trying to figure out is a SQL statement that will list the number of people that have bought a particular product per company. So an output similar to this: Comp ABC | 13 Prod1 | 3 Prod2 | 5 Prod 3 Comp DEF | 2 Prod1 | 15 Prod2 | 0 Prod 3 Comp HIJ | 0 Prod1 | 0 Prod2 | 7 Prod 3 Currently if a person did not select a product the value being stored is NULL. Best I have right now is 3 different statements that can produce this information if run on there own. SELECT Count(person) as puchases, company FROM Sales WHERE prod1 = '1' and gendate = '3/24/2010' Group BY company

    Read the article

  • Is there a way to change lookandfeel for wx Python?

    - by uberjumper
    Hi, i was curious if there is some sort of way to change the look and feel of wxpython to something that is more standardized. I am writing a small application for windows and mac os x. And i noticed that Mac formats the layout and look of my application pretty terribly. I looked around online and could not find anything. Any ideas?

    Read the article

  • Decimal rounding strategies in enterprise applications

    - by Sapphire
    Well, I am wondering about a thing with rounding decimals, and storing them in DB. Problem is like this: Let's say we have a customer and a invoice. The invoice has total price of $100.495 (due to some discount percentage which is not integer number), but it is shown as $100.50 (when rounded, just for print on invoice). It is stored in the DB with the price of $100.495, which means that when customer makes a deposit of $100.50 it will have $0.005 extra on the account. If this is rounded, it will appear as $0, but after couple of invoices it would keep accumulating, which would appear wrong (although it actually is not). What is best to do in this case. Store the value of $100.50, or leave everything as-is?

    Read the article

  • How can a separator be added between items in an ItemsControl

    - by Grandpappy
    I'm needing to display a list of numbers from a collection in an Items Control. So the items are: "1", "2", "3". When they are rendered, I need them separated by a comma (or something similar). So the above 3 items would look like this: "1, 2, 3". How can I add a separator to the individual items, without having one tacked on the end of the list? I am not stuck on using an ItemsControl, but that's what I had started to use.

    Read the article

< Previous Page | 107 108 109 110 111 112 113 114 115 116 117 118  | Next Page >