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Articles indexed Thursday April 8 2010

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  • Need to validate a scientific spreadsheet written in Java

    - by geejay
    I need a validation framework, for an app written in Java, Eclipse RCP. The UI is a simple spreadsheet with many input fields and many output fields. The user input needs to be validated, for example: Thresholds for numerical fields Required fields for certain operations Context-sensitive help based on the validation results Multi-field validation, e.g a field is valid depending upon the values in other fields Wondering if there is anything out there?

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  • Basic Tooltip (jQuery)

    - by Nimbuz
    HTML: <a href="#" rel="tooltip">Open Tooltip</a> <div id="tooltip">Tooltip Content</div> I checked out some tooltip plugins but my requirement is a really basic tooltip that shows a hidden div on hover. All plugins either have too many advanced options that I don't require and have already styled tooltips that might be difficult to modify. I'd appreciate any help. Thanks.

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  • Symfony user authentication using Active Directory

    - by Radu Dragomir
    Is there a way to authenticate users in symfony apps using Active Directory? Can you please point out some documentation? edit What i need is to have a transparent login in my application. The user authenticates once at windows logon, then all applications should be accessed with the same credentials without being asked for the domain\username and password again. I tried the following in a simple php script: if (!isset($_SERVER['PHP_AUTH_USER'])) { header('WWW-Authenticate: Basic realm="my realm"'); header('HTTP/1.0 401 Unauthorized'); exit; } else { echo "<p>Hello {$_SERVER['PHP_AUTH_USER']}.</p>"; echo "<p>You entered {$_SERVER['PHP_AUTH_PW']} as your password.</p>"; } but then i get the authentication form popped up. Is there any way to pass the header the credentials used at windows logon? Thanks, Radu.

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  • Sort tables with two elements

    - by Mercer
    Hello i want to make a sort in java. In my object i have many element so i want to make this sort with power and model public class Product implements Comparable<Product>,Serializable { private int idProduct ; private int power; private String model; private String color; [...] @Override public int compareTo(Product o) { return String.valueOf(this.power).compareTo(String.valueOf(o.power)); } so how to make sort with power and model

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  • An equivalent of -javaagent in C#? Or: ways to use a java framework in C#.

    - by Alix
    Hi everyone. This is probably something I should be able to figure out by myself, but I'm not having much luck so I figured I'd ask. The issue: I'm translating a system from java to C# and they use a java framework that I'd really like to use, since it takes care of the most complex parts of the system, which I would otherwise have to implement myself. I have the source code of this framework. I know there are several possibilities for using java libraries in C# (although I'm not familiar with any of them, so I'd appreciate suggestions). So far I've thought of using IKVM.NET to generate a .dll, but I'm not sure what to do next, because in java in order to run the framework with your code you're supposed to use the option -javaagent by adding -javaagent:bin/deuceAgent.jar (where deuceAgent is the framework) to your java command line. I don't know what the equivalent in C# would be once I have my .dll, or whether there's an equivalent at all. Any help? Thanks so much.

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  • dojo parser not escaping quotation marks in attributes?

    - by peirix
    Whenever I'm using quotation marks inside an attribute value in dojo, it seems dojo's parser isn't handling it very well... <textarea name="content.locale['en']" dojoType="dijit.form.SimpleTextarea"> </textarea> Turns into: <textarea ]="" en="" name="content.locale["></textarea> With the surrounding <div>s and what not is added by the dijit widget. Any ideas? EDIT Seems this is working as it should with other elements, it's just the SimpleTextarea that's causing a problem..

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  • Running a Windows Forms app. from a service.

    - by RemotecUk
    Hi, I have a strange application in that for development and testing I need a windows forms application so that I can monitor what it is doing. For production, the application will be started from a service and no visible UI is needed. I dont really want to re-write the app. once it is completed into a console app so I would like to leave it as it but start it from the service. My question is will this application work fine from a service? At the moment it has UI elements and I have been able to successfully start the application from a service using the Process class (System.Diagnostics). Could anything go wrong with this approach?

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  • How to read raw bytes from an SD card?

    - by geschema
    On a Windows PC, is there a way to read the raw bytes from an SD card attached trough a USB card reader? The SD card gets written from an embedded system using no file system at all, so I can't use standard file access routines. This is similar to what the unix dd utility does, but I need to integrate this into a .NET application.

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  • How to use List<T>.Find() on a simple collection that does not implement Find()?

    - by Bilal
    Hi, I want to use List.Find() on a simple collection that does not implement Find(). The naive way I thought of, is to just wrap it with a list and execute .Find(), like this: ICollection myCows = GetAllCowsFromFarm(); // whatever the collection impl. is... var steak = new List<Cow>(myCows).Find(moo => moo.Name == "La Vache qui Rit"); Now, 1st of all I'd like to know, C#-wise, what is the cost of this wrapping? Is it still faster to 'for' this collection the traditional way? Second, is there a better straightforward way elegantly use that .Find()? Cheers!

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  • Sharepoint: Convert a SPFieldMultilineText to SPFieldText

    - by driAn
    Hi Is it possible to programmatically change a "multi-line text field" to "single-line text field" ? SPFieldMultiLineText field = list.Fields["sample"] as SPFieldMultiLineText; // how to change the type to 'single line' now ? Or do I need to create an additional field (with a similiar name) and migrate the content? Thanks for any help.

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  • How do I make UITableViewCellAccessoryDisclosureIndicator visible in black background?

    - by Amit Vaghela
    Hi I wrote this cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; in this method - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath; but I can only see it when I select that cell otherwise it's not visible.and it work perfectly when background is white. I am sure that I need to set a property, but I don't know which property I need to change to make this thing work. thanks in advance. cheers.

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  • Quartz 2D or OpenGL ES? Pros and cons in the long term, possibility of migration to other platforms.

    - by fspirit
    Hi all! I'm having a hard time deciding whether to go with Quartz2D or OpenGL for an iPad game. It will be 2D mostly, but effect-intense (simultaneous lighting effects for 10-30 objects, 10-20 simultaneous animations on the screen). So far, assuming i'm equally dumb in both technologies and have to learn them from the ground, i came to this list. (I've read several topics here, on SO, with names like "Quartz or OpenGL", but i'm still left with some questions) Quartz: Better time-to-market, because of ready to use absractions like UIView, UIImageView, CoreAnimation abstractions Open GL ES Closer to hardware, thus, performance is better. App, implemented with OpenGL ES can be easier migrated to Android, MeeGo, Windows Phone, etc. My questions are: How time will it take to rewrite Quartz 2d app to use OpenGL? Lets say it took me 2 man-month to write Quartz app, how much time will i need to rewrite it? (Please, just some subjective opinions, i'll try to summarize them somehow) Regarding the ease of migration to other platforms, when using OpenGL, is it really so? Or efforts when migrating Quartz app from iPhoneOS to Android will be not so much bigger, compared to OpenGL app migration? (Ease of migration is quite important criterion) Regarding OpenGL, should i go with OpenGL 1.1 or 2.0, concerning migration? (Android supports 2.0 through NDK, but dont know whether NDK's use will increase or decrease migration efforts)

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  • why isn't my validator working?

    - by Lina
    hi, can anybody tell me why is the following code not working? <script type="text/javascript" src="../../Scripts/jquery.js"></script> <script type="text/javascript" src="../../Scripts/jquery.validate.js"></script> <script type="text/javascript"> $(function() { // validate contact form on keyup and submit $("#myform").validate({ //set the rules for the fild names rules: { hour: { required: true, minlength: 2, range:[0,23] }, minute: { required: true, minlength: 2, range:[0,60] }, }, //set messages to appear inline messages: { hour: "Please enter a valid hour", minute: "Please enter a valid minute" } }); }); </script> <style type="text/css"> .error { color: red; font: 12pt verdana; padding-left: 10px } </style> <form id="myform" method="" action=""> <input id="hour" type="text" name="hour" style="width:30px; text-align:center;"></input> : <input id="minute" type="text" name="minute" style="width:30px; text-align:center;"></input> <br/> <input type="submit" value="Validate!" /> </form> thanks a million in advance, Lina

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  • Concurrent usage of table causing issues

    - by Sven
    Hello In our current project we are interfacing with a third party data provider. They need to insert data in a table of ours. This inserting can be frequent every 1 min, every 5min, every 30, depends on the amount of new data they need to provide. The use the isolation level read committed. On our end we have an application, windows service, that calls a webservice every 2 minutes to see if there is new data in this table. Our isolation level is repeatable read. We retrieve the records and update a column on these rows. Now the problem is that sometimes this third party provider needs to insert a lot of data, let's say 5000 records. They do this per transaction (5rows per transaction), but they don't close the connection. They do one transaction and then the next untill all records are inserted. This caused issues for our process, we receive a timeout. If this goes on for a long time the database get's completely unstable. For instance, they maybe stopped, but the table somehow still stays unavailable. When I try to do a select on the table, I get several records but at a certain moment I don't get any response anymore. It just says retrieving data but nothing comes anymore until I get a timeout exception. Only solution is to restart the database and then I see the other records. How can we solve this. What is the ideal isolation level setting in this scenario?

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  • Google and Mirror Websites

    - by Roberto Aloi
    Which is the best way to manage a website with one or more mirrors so that: Google don't consider it as "dupicated content" The website is correctly indexed No inconsistencies or duplicated information are present in Google Analytics The Google webmaster guidelines in general are respected NOTE: I'm not sure if I should ask this question here or in ServerFault. It looks a bit in the middle between programming and server administration. Let me know if you think ServerFault represent a more appropriate place for this and I'll move it. Thanks.

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  • Excel Question: I need a date and time formula to convert between time zones

    - by Harold Nottingham
    Hello, I am trying to find a way to calculate a duration in days between my, time zone (Central), and (Pacific; Mountain; Eastern). Just do not know where to start. My criteria would be as follows: Cell C5:C100 would be the timestamps in this format:3/18/2010 23:45 but for different dates and times. Cell D5:D100 would be the corresponding timezone in text form: Pacific; Mountain; Eastern; Central. Cell F5 would be where the duration in days would need to be. Just not sure how to write the formula to give me what I am looking for. I appreciate any assistance in advance. Thanks

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  • Deserializing Metafile

    - by Kildareflare
    I have an application that works with Enhanced Metafiles. I am able to create them, save them to disk as .emf and load them again no problem. I do this by using the gdi32.dll methods and the DLLImport attribute. However, to enable Version Tolerant Serialization I want to save the metafile in an object along with other data. This essentially means that I need to serialize the metafile data as a byte array and then deserialize it again in order to reconstruct the metafile. The problem I have is that the deserialized data would appear to be corrupted in some way, since the method that I use to reconstruct the Metafile raises a "Parameter not valid exception". At the very least the pixel format and resolutions have changed. Code use is below. [DllImport("gdi32.dll")] public static extern uint GetEnhMetaFileBits(IntPtr hemf, uint cbBuffer, byte[] lpbBuffer); [DllImport("gdi32.dll")] public static extern IntPtr SetEnhMetaFileBits(uint cbBuffer, byte[] lpBuffer); [DllImport("gdi32.dll")] public static extern bool DeleteEnhMetaFile(IntPtr hemf); The application creates a metafile image and passes it to the method below. private byte[] ConvertMetaFileToByteArray(Image image) { byte[] dataArray = null; Metafile mf = (Metafile)image; IntPtr enhMetafileHandle = mf.GetHenhmetafile(); uint bufferSize = GetEnhMetaFileBits(enhMetafileHandle, 0, null); if (enhMetafileHandle != IntPtr.Zero) { dataArray = new byte[bufferSize]; GetEnhMetaFileBits(enhMetafileHandle, bufferSize, dataArray); } DeleteEnhMetaFile(enhMetafileHandle); return dataArray; } At this point the dataArray is inserted into an object and serialized using a BinaryFormatter. The saved file is then deserialized again using a BinaryFormatter and the dataArray retrieved from the object. The dataArray is then used to reconstruct the original Metafile using the following method. public static Image ConvertByteArrayToMetafile(byte[] data) { Metafile mf = null; try { IntPtr hemf = SetEnhMetaFileBits((uint)data.Length, data); mf = new Metafile(hemf, true); } catch (Exception ex) { System.Windows.Forms.MessageBox.Show(ex.Message); } return (Image)mf; } The reconstructed metafile is then saved saved to disk as a .emf (Model) at which point it can be accessed by the Presenter for display. private static void SaveFile(Image image, String filepath) { try { byte[] buffer = ConvertMetafileToByteArray(image); File.WriteAllBytes(filepath, buffer); //will overwrite file if it exists } catch (Exception ex) { System.Windows.Forms.MessageBox.Show(ex.Message); } } The problem is that the save to disk fails. If this same method is used to save the original Metafile before it is serialized everything is OK. So something is happening to the data during serialization/deserializtion. Indeed if I check the Metafile properties in the debugger I can see that the ImageFlags, PropertyID, resolution and pixelformats change. Original Format32bppRgb changes to Format32bppArgb Original Resolution 81 changes to 96 I've trawled though google and SO and this has helped me get this far but Im now stuck. Does any one have enough experience with Metafiles / serialization to help..? EDIT: If I serialize/deserialize the byte array directly (without embedding in another object) I get the same problem.

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  • What is wrong with this Anonymous Object Initializate Syntax?

    - by Ramiz Uddin
    What is wrong with this Anonymous Object Initialize syntax? If (Not row Is Nothing) Then Dim info As New CultureInfo(Conversions.ToString(row.Item("cultureId"))) With { _ .NumberFormat = New With {.CurrencySymbol = Conversions.ToString(row.Item("symbol")), .CurrencyGroupSeparator = Conversions.ToString(row.Item("thousSep")), .CurrencyDecimalSeparator = Conversions.ToString(row.Item("thousSep")), .CurrencyDecimalDigits = Conversions.ToInteger(row.Item("decimals")), .NumberGroupSeparator = Conversions.ToString(row.Item("thousSep")), .NumberDecimalSeparator = Conversions.ToString(row.Item("thousSep")), .NumberDecimalDigits = Conversions.ToInteger(row.Item("decimals"))}} } hashtable.Add(key, info) End If It is a syntax error or object initialization type casting issue. Thanks.

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  • How to open multiple viewer windows in Toad?

    - by RemotecUk
    Im sure this is pretty simple but I just cant seem to find the option. My Toad MySql install only seems to allow me to have one "Viewer" window open and hence its impossible to view multiple tables - or have a window open for each table Im working with. Does anyone know how to change this?

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