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  • onClientClick event

    - by picnic4u
    when i used onClientClick event for calling a javascript function in .aspx file. but it's not working at all.how can i get alert for input of data within "<" in textbox. pls help me

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  • Does Marshal.ReleaseComObject call the garbage collector ?

    - by Shimrod
    Hi, I was asked this question today by a colleague, and couldn't find any clue on the Internet... Can someone tell me if calling Marshall.ReleaseComObject()directly calls the garbage collector ? As I understand it, it only removes COM references, and then the G.C. cleans memory on its next pass, but I can be mistaken... Thanks in advance for your help!

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  • Objective C: Initalizing static variable with static method call

    - by adranale
    The Compiler claims an error saying: "initializer element is not constant", when I try to initialize a static variable inside a method with a call to a static method (with + in its definition). Anyway I can tell him that this method always returns the same value. I know this is not the same as static method, but there seems to be no constant methods in Objective-C (other than macros which won't work here because I am calling UI_USER_INTERFACE_IDIOM() from inside the method).

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  • Push notification on iphone from my server.

    - by Nithin
    Hi, I am creating an application and i'm planning to use a notification service in it. I've a server and the application is calling this server via webservices and updating its data. But i now need to enable a notification service where the user may get the updates in my server as a notification. I am planning to use Urban Airship service, but not sure how to make it communicate with my server. Or is there any other easy way to enable notifications.

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  • Why Exception occured getting address of COM function ?

    - by Usman
    I am getting address of COM function by loading type library (TLB) and iterating over types using ITypeLib and ITypeInfo. After calling AddressOfMember function of ITypeInfo I am facing the following exception: System.Runtime.InteropServices.COMException (0x800288BD): Wrong module kind for the operation. (Exception from HRESULT: 0x800288BD (TYPE_E_BADMODULEKIND)) at System.Runtime.InteropServices.ComTypes.ITypeInfo.AddressOfMember(Int32 memid, INVOKEKIND invKind, IntPtr& ppv). Any idea how to get rid of this excpetion?

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  • Setting a PHP $_SESSION['var'] using jQuery

    - by mike condiff
    I need to set a PHP $_SESSION variable using the jQuery. IF the user clicks on an image I want to save a piece of information associated with that image as a session variable in php. I think I can do this by calling a php page or function and appending that piece of info to the query string. Any ideas. I have found little help through google. thanks mike

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  • 'add another item' in non-CCK Drupal forms

    - by ceejayoz
    CCK for Drupal has the handy feature of allowing a single CCK field to accept multiple values via a "add another item" button that results in an array of data in the node. I'm wondering if there's any easy way of adapting this for a non-CCK form that I'd be calling by drupal_get_form. I'd rather not have to re-invent the wheel with multi-step form techniques. Anyone done this?

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  • How do you return a partial view with spark?

    - by runxc1 Bret Ferrier
    I am using the SparkViewEngine and I am calling an action that I want to return a Partial View to update just a section of the page. When I return the view on the action the masterpage and all of its content gets returned. How do you tell a partial in spark to just return the content of the partial view and not put the content inside the application.spark file??

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  • Unloading vertex buffers in OpenGL

    - by Jeremy Statz
    I have an Android live wallpaper that I suspect is leaking memory, probably either textures or vertex arrays. I'm calling glDeleteTextures on my texture IDs, but don't see any sort of equivalent for my vertex buffers. I'd like to be able to be sure both my textures and buffers are getting unloaded by OpenGL, am i missing something? The documents I've found seem to suggest OpenGL just works it out on its own, but that's not giving me a lot of comfort.

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  • Python: unable to inherit from a C extension.

    - by celil
    I am trying to add a few extra methods to a matrix type from the pysparse library. Apart from that I want the new class to behave exactly like the original, so I chose to implement the changes using inheritance. However, when I try from pysparse import spmatrix class ll_mat(spmatrix.ll_mat): pass this results in the following error TypeError: Error when calling the metaclass bases cannot create 'builtin_function_or_method' instances What is this causing this error? Is there a way to use delegation so that my new class behaves exactly the same way as the original?

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  • Validate Linq2Sql before SubmitChanges()

    - by Nick Gotch
    Can anyone tell me if/how you can validate the changes in a data context in Linq2Sql before calling SubmitChanges(). The situation I have is that I create a context, perform multiple operations and add many inserts alongside other processing tasks and then rollback if the submit fails. What I'd prefer to do is make some kind of "Validate()" call after certain tasks are done so that I can handle it before submitting the entire job.

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  • HTTP method GET is not supported by this URL

    - by Alvin
    Hi, I'm calling servlets which has implemented CometProcessor interface, and whenever I try to call the servlets with get request, I'm getting the above error. May I know the reason? public class ChatServlets extends HttpServlet implements CometProcessor { public void event(CometEvent event) throws IOException, ServletException { HttpServletRequest request = event.getHttpServletRequest(); HttpServletResponse response = event.getHttpServletResponse(); if (event.getEventType() == CometEvent.EventType.BEGIN) { response.getWriter().println("Welcome "); } else if (event.getEventType() == CometEvent.EventType.READ) { response.getWriter().println("Bye"); } } }

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  • Implementing a robust async stream reader

    - by Jon
    I recently provided an answer to this question: C# - Realtime console output redirection. As often happens, explaining stuff (here "stuff" was how I tackled a similar problem) leads you to greater understanding and/or, as is the case here, "oops" moments. I realized that my solution, as implemented, has a bug. The bug has little practical importance, but it has an extremely large importance to me as a developer: I can't rest easy knowing that my code has the potential to blow up. Squashing the bug is the purpose of this question. I apologize for the long intro, so let's get dirty. I wanted to build a class that allows me to receive input from a Stream in an event-based manner. The stream, in my scenario, is guaranteed to be a FileStream and there is also an associated StreamReader already present to leverage. The public interface of the class is this: public class MyStreamManager { public event EventHandler<ConsoleOutputReadEventArgs> StandardOutputRead; public void StartSendingEvents(); public void StopSendingEvents(); } Obviously this specific scenario has to do with a console's standard output, but that is a detail and does not play an important role. StartSendingEvents and StopSendingEvents do what they advertise; for the purposes of this discussion, we can assume that events are always being sent without loss of generality. The class uses these two fields internally: protected readonly StringBuilder inputAccumulator = new StringBuilder(); protected readonly byte[] buffer = new byte[256]; The functionality of the class is implemented in the methods below. To get the ball rolling: public void StartSendingEvents(); { this.stopAutomation = false; this.BeginReadAsync(); } To read data out of the Stream without blocking, and also without requiring a carriage return char, BeginRead is called: protected void BeginReadAsync() { if (!this.stopAutomation) { this.StandardOutput.BaseStream.BeginRead( this.buffer, 0, this.buffer.Length, this.ReadHappened, null); } } The challenging part: BeginRead requires using a buffer. This means that when reading from the stream, it is possible that the bytes available to read ("incoming chunk") are larger than the buffer. Since we are only handing off data from the stream to a consumer, and that consumer may well have inside knowledge about the size and/or format of these chunks, I want to call event subscribers exactly once for each chunk. Otherwise the abstraction breaks down and the subscribers have to buffer the incoming data and reconstruct the chunks themselves using said knowledge. This is much less convenient to the calling code, and detracts from the usefulness of my class. To this end, if the buffer is full after EndRead, we don't send its contents to subscribers immediately but instead append them to a StringBuilder. The contents of the StringBuilder are only sent back whenever there is no more to read from the stream (thus preserving the chunks). private void ReadHappened(IAsyncResult asyncResult) { var bytesRead = this.StandardOutput.BaseStream.EndRead(asyncResult); if (bytesRead == 0) { this.OnAutomationStopped(); return; } var input = this.StandardOutput.CurrentEncoding.GetString( this.buffer, 0, bytesRead); this.inputAccumulator.Append(input); if (bytesRead < this.buffer.Length) { this.OnInputRead(); // only send back if we 're sure we got it all } this.BeginReadAsync(); // continue "looping" with BeginRead } After any read which is not enough to fill the buffer, all accumulated data is sent to the subscribers: private void OnInputRead() { var handler = this.StandardOutputRead; if (handler == null) { return; } handler(this, new ConsoleOutputReadEventArgs(this.inputAccumulator.ToString())); this.inputAccumulator.Clear(); } (I know that as long as there are no subscribers the data gets accumulated forever. This is a deliberate decision). The good This scheme works almost perfectly: Async functionality without spawning any threads Very convenient to the calling code (just subscribe to an event) Maintains the "chunkiness" of the data; this allows the calling code to use inside knowledge of the data without doing any extra work Is almost agnostic to the buffer size (it will work correctly with any size buffer irrespective of the data being read) The bad That last almost is a very big one. Consider what happens when there is an incoming chunk with length exactly equal to the size of the buffer. The chunk will be read and buffered, but the event will not be triggered. This will be followed up by a BeginRead that expects to find more data belonging to the current chunk in order to send it back all in one piece, but... there will be no more data in the stream. In fact, as long as data is put into the stream in chunks with length exactly equal to the buffer size, the data will be buffered and the event will never be triggered. This scenario may be highly unlikely to occur in practice, especially since we can pick any number for the buffer size, but the problem is there. Solution? Unfortunately, after checking the available methods on FileStream and StreamReader, I can't find anything which lets me peek into the stream while also allowing async methods to be used on it. One "solution" would be to have a thread wait on a ManualResetEvent after the "buffer filled" condition is detected. If the event is not signaled (by the async callback) in a small amount of time, then more data from the stream will not be forthcoming and the data accumulated so far should be sent to subscribers. However, this introduces the need for another thread, requires thread synchronization, and is plain inelegant. Specifying a timeout for BeginRead would also suffice (call back into my code every now and then so I can check if there's data to be sent back; most of the time there will not be anything to do, so I expect the performance hit to be negligible). But it looks like timeouts are not supported in FileStream. Since I imagine that async calls with timeouts are an option in bare Win32, another approach might be to PInvoke the hell out of the problem. But this is also undesirable as it will introduce complexity and simply be a pain to code. Is there an elegant way to get around the problem? Thanks for being patient enough to read all of this.

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  • Difference between OData and REST web services

    - by Scott
    While looking into some web services, I ran across this "new" technology that Microsoft is calling OData. (http://www.odata.org) Reading through their description within the FAQ on what OData is, I am having a hard time distinguishing OData from REST-ful web services. Could someone please help me understand the differences?

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  • Window Media Player issues two requests for the audio on web page

    - by Ron Harlev
    I'm using Windows Media Player in a web page. I have version 11 installed so that is the version I'm testing with right now. The player is embedded on the page with this HTML: <OBJECT id='MS_mediaPlayer' width="400" height="45" classid='CLSID:6BF52A52-394A-11D3-B153-00C04F79FAA6' codebase='http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701' standby='Loading Microsoft Windows Media Player components...' type='application/x-oleobject'> <param name='autoStart' value="false"> <param name='uiMode' value="invisible"> <param name='loop' value="false"> </OBJECT> I'm calling in JavaScript: MS_mediaPlayer.URL = "SomeAudioFile.mp3" MS_mediaPlayer.controls.play(); When I look at Fiddler I can see that the player actually downloads "SomeAudioFile.mp3" twice. Is there some setting I have wrong? I was trying to set the "autoPlay" to true and avoid calling "play()". Got the same result - two downloads. UPDATE: The first request's user-agent is "Windows-Media-Player/11.0.5721.5268". The second has "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)". Looks like the browser is running the same request the second time. No Idea why Any ideas? UPDATE (4/1/10): Still no solution. I debugged the JS thoroughly and there is only one call to MediaPlayer.URL='.....' to set the audio file. Nothing else triggers the media player to load the file and there is no other place referencing the audio file on the page. One other interesting fact is that this doesn't happen (the double loading of the audio) when I run the browser locally on my development web server. But other remote requests to the same web server generate the double audio loading. I believe I eliminated any correlation with specific IE version or media player version. This happens with IE6-8 and WM9-12

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  • How can I know which Area my MVC controller action is being called in?

    - by kripto_ash
    I want to know how, from a controller action, I could identify the area in which the controller is in via the MVC framework (I mean, without making all controllers in a given area inherit from a base controller with that info). I'm particularly interested in the case of child actions (controller actions rendered via RenderAction), the area of the calling parent controller for instance. I'm using ASP .NET MVC 2.0 RTM

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  • High-quality PDF to Word conversion in PHP?

    - by cletus
    What's the best way of converting PDF docs to Microsoft Word format in PHP? This can be either as a PHP script or calling a (Linux) executable (with proc_open()). It just needs to be relatively fast and produce quality Word documents (in 97/2000/2003 format). Commercial software is OK.

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  • Selecting a user-defined scalar function that takes as a parameter another field

    - by ghills
    I have a table a with a list of id's, and a user-defined function foo(id) that takes the id and returns a VARCHAR(20). What I am trying to do is: SELECT id, foo(id) AS 'text field' FROM a However, instead of calling the function for each ID number, like I desired, the text comes back the same for every row. I have tested the foo() function manually with the returned ID's and it does not have that problem, so I realize I must not understand something about the evaluation of the query.

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