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  • delete empty cell matlab

    - by AP
    I have a question : I am generating a excel file through matlab and i have empty cells in middle of it here is the code i am using to open a empty matrix newfile= cell(5,5); [newfile{:}]= deal(''); [newfile{:}]= deal(' '); I do some processing here then i write xlswrite .... now i output i get is file with some empty cells and some data. IS there a command by which i can delete the empty rows, without effecting the rows which have data? Another question : IS there a way to append onto this excel file i am writing. I run this file everyday and would like to add aumatically rather than me manually copying and pasting everyday. thanks

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  • Store XML,update record in XML,retrive a specific record in XML stored on BB device

    - by user469999
    I am writing a blackberry application where i want to store the data returned by a web service in my BB device.Earlier i was going to use SQLite for storing the data in mobile but as i googled and also did programming using SQLite and found that some BB devices dont support SQLite library and fail to create the database.Then i decided to keep the data returned by webservice in a XML format on my BB device. I just want to know is there any method or way in blackberry through which i can parse the data stored in xml,update it,or directly access a particular record stored in the xml instead of traversing the whole xml n times and finding the matched record. Please guide me as i am new to storing data in BB device.Is the approach which i am thinking to store data in XML right or shall i use something else Thanks in advance Yogesh Chaudhari

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  • how can I code a recursive query in an Entity Framework model?

    - by Greg
    Hi, I have a model which includes NODES, and RELATIONSHIPS (that tie the nodes together, via a parent_node, child_node arrangement). Q1 - Is there any way in EF / Linq-to-entities to perform a query on nodes (e.g. context.Nodes..) to find say "all parents" or "or children" in the graph? Q2 - If there's not in Linq-to-entities, is there any other way to do this other than writing a method that manually goes through and doing it? Q3 - If manual is the only way to do it, should I be concerned about the number of database hits that will be going out to the database as the method keeps recursing through the data? Or more specifically, is there any EF caching type feature that might assist here in ensuring the method is performance from a "number of database hits" point of view? thanks thanks

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  • Add an objective @property attribute in objective-c

    - by morticae
    Does anyone know of a way to add additional attribute types to the @property keyword without modifying the compiler? Or can anyone think of another way to genericize getter/setter creation? Basically, I have a lot of cases in a recent project where it's handy for objects to lazily instantiate their array properties. This is because we have "event" objects that can have a wide variety of collections as properties. Subclassing for particular events is undesirable because many properties are shared, and it would become a usability nightmare. For example, if I had an object with an array of songs, I'd write a getter like the following: - (NSMutableArray *)songs { if (!songs) { songs = [[NSMutableArray alloc] init]; } return songs; } Rather than writing dozens of these getters, it would be really nice to get the behavior via... @property (nonatomic, retain, lazyGetter) NSMutableArray *songs; Maybe some fancy tricks via #defines or something? Other ideas?

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  • Windows Identity Foundation: How to get new security token in ASP.net

    - by Rising Star
    I'm writing an ASP.net application that uses Windows Identity Foundation. My ASP.net application uses claims-based authentication with passive redirection to a security token service. This means that when a user accesses the application, they are automatically redirected to the Security Token Service where they receive a security token which identifies them to the application. In ASP.net, security tokens are stored as cookies. I want to have something the user can click on in my application that will delete the cookie and redirect them to the Security Token Service to get a new token. In short, make it easy to log out and log in as another user. I try to delete the token-containing cookie in code, but it persists somehow. How do I remove the token so that the user can log in again and get a new token?

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  • Is there a Windows equivalent for eventfd?

    - by Leaurus
    I am writing a cross-platform library which emulates sockets behaviour, having additional functionality in the between (App-mylib-sockets). I want it to be the most transparent possible for the programmer, so primitives like select and poll must work with accordingly with this lib. The problem is when data becomes available (for instance) in the real socket, it will have to go through a lot of processing, so if select points to the real socket fd, app will be blocked a lot of time. I want the select/poll to unblock only when data is ready to be consumed (after my lib has done all the processing). So I came across this eventfd which allows me to do exactly what I want, i.e. to manipule select/poll behaviour on a given fd. Since I am much more familiarized with Linux environment, I don't know what is the windows equivalent of eventfd. Tried to search but got no luck. Anyone can help me, please?

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  • Using External GPS Device w/ Android via Bluetooth

    - by jeremynealbrown
    Hello, I am writing an Android 2.0 application that is going to be used in a somewhat remote location. There will be no internet connection available and it will be used outside of the U.S. I am considering the option of using an external Nokia or similar GPS device as a receiver/transmitter and connecting to it for use in my application via the bluetooth API. I am looking for opinions on whether or not this is even possible, if anyone has attempted it or if someone has a suggestion for some other external device or approach that would be more fitting. Link to possible external GPS device: http://europe.nokia.com/find-products/accessories/all-accessories/navigation/gps-modules/nokia-gps-module-ld-3w Thanks in advance...

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  • Canon EDSDK 2.8 (Xcode 3.2.2 - Snow Leopard 10.6.3)

    - by Scott Langendyk
    I'm trying to build an application using the Canon EDSDK 2.8. I created a new Cocoa Application project in Xcode, and imported the headers and framework files. When I try to build and run (without writing any code), I get two warnings that say the frameworks are missing x86_64 architecture files. If I try and import the "EDSDK.h" header file, I end up with about 100 miscellaneous errors. I've tried changing the architecture to i386, however when I try and build and run, I get a debugger error that says "Cannot access memory at address 0x0". The odd thing is that I can get the example applications bundled with the SDK to compile and run without issues, Anyone have any ideas as to why this is happening?

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  • 1>Project : error PRJ0003 : Error spawning 'rc.exe'.

    - by user320950
    1Project : error PRJ0003 : Error spawning 'rc.exe'.. this is the error i get when i try to run this small practice program of reading and writing files which i cant do because of the reason of me not being able to get the files to open correctly. i use microsoft visual c++ 2008 and i have used the file path to try to open the file as well and i cant can someone help? #include <iostream> #include <fstream> using namespace std; int main () { ifstream infile; ofstream myfile; infile.open("ex.txt"); myfile.open ("example.txt"); myfile.close(); return 0; }

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  • MMC Snapin development: 'MMC not responding' - Is there a timeout that can be set for debugging?

    - by Ed Sykes
    So I'm writing a snapin for MMC 3. Quite often I have the debugger attached and I'm stepping through some code. MMC has some kind of a fail safe for misbehaving snapins that automatically unloads them after a timeout. The message is 'This snap-in is not responding'. After that MMC can behave as though your snap-in has been unloaded. fair enough, it's not responding because I'm stepping through the debugger. However, the timeout is very small for development. Does anyone know of a way of increasing the timeout? I googled and couldn't find anything. Checking the MMC registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC and couldn't see anything there. I also checked the snap-in registry location under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC\SnapIns. No luck. I feel like there must be a way of increasing the timeout as this is something the devs as Microsoft must have encountered this problem.

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  • JAMES Mailet development process

    - by itsadok
    I'm starting a project that involves writing mailets for Apache James. As far as I can tell, the only way to test a change in my code (on Windows) is through the following steps: Compile the mailet code Build a jar file containing the mailet Copy the jar file into the apps/james/SAR-INF/lib directory Start JAMES from run.bat Run test Stop JAMES by telneting to port 4555 and issuing a shutdown command (I guess on Linux a SIGTERM would suffice) I can automate all these steps using Ant and some scripting magic, but I was wondering if I was missing something. Does anyone here have experience developing mailets? Did you use a similar process, or is there an easier way? For example, is there a way to make a running James instance reload the mailets JAR?

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  • soap vs REST vs JSON in SOA

    - by Muhammad Adnan
    I writing here to clear my and may be many people 's misconceptions about them... first my question is: SOAP is xml based protocol REST is web based architectural web service JSON is standard but not xml based how can we compare them???? as trio are different things 2nd question is: is REST response xml based only or json based also??? if it is also xml based then how can we consider it different then SOAP and even faster... 3rd question is: how can we apply authentication header on REST and jSON based web services (any reference with description) 4th question is: what is SOA and if some application contains some web services, can we consider it SOA based means what are SOA specs... your response would be appreciated :)

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  • WinForms (C#) Databinding Object to Checkbox.Checked Property

    - by Trevor Sullivan
    Hello, I'm writing a WinForms app, and am trying to bind a boolean property on a .NET object to a Checkbox's "checked" property. I am successfully creating the binding, but when I change the source property's value from false to true (I have a button that toggles it), the checkbox's "checked" property does not reflect that change. if (chkPreRun.DataBindings["Checked"] == null) { Debug.WriteLine("Adding chkPreRun databinding"); Binding _binding = chkPreRun.DataBindings.Add("Checked", NwmConfig, "PreRun") // Added this just to ensure that these were being set properly _binding.DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged; _binding.ControlUpdateMode = ControlUpdateMode.OnPropertyChanged; } I am able to successfully bind the text property to the value of a TextBox, for example. I'm not sure what I'm missing while binding to the "Checked" property, however. Cheers, Trevor

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  • Bluetooth -> service discovery failed

    - by Kaiser
    Hello, I'm writing an application which is able to communicate with my PC. I have used the Bluetooth functionalities of the SDK 2.1. I can find devices, get their MAC address, create a RFCOMM socket, but when I start the connection, I get the following error message : Service discovery failed. 1)Is it because of the UUID which is not the same on my application and on my PC ? 2)How can I get the correct UUID on my PC ? If I write a such application, is my Nexus one the client or the server ? Thanks a lot for your help !

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  • Workaround for UpdateSourceTrigger LostFocus on Silverlight Datagrid?

    - by Dave Lowther
    I have a Silverlight 2 application that validates data OnTabSelectionChanged. Immediately I began wishing that UpdateSourceTrigger allowed more than just LostFocus because if you click the tab without tabbing off of a control the LINQ object is not updated before validation. I worked around the issue for TextBoxes by setting focus to another control and then back OnTextChanged: Private Sub OnTextChanged(ByVal sender As Object, ByVal e As TextChangedEventArgs) txtSetFocus.Focus() sender.Focus() End Sub Now I am trying to accomplish the same sort of hack within a DataGrid. My DataGrid uses DataTemplates generated at runtime for the CellTemplate and CellEditingTemplate. I tried writing the TextChanged="OnTextChanged" into the TextBox in the DataTemplate, but it is not triggered. Anyone have any ideas?

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  • How can I assert from Python C code?

    - by Joe
    I'm writing a Python class in C and I want to put assertions in my debug code. assert.h suits me fine. This only gets put in debug compiles so there's no chance of an assert failure impacting a user of the Python code*. I'm trying to divide my 'library' code (which should be separate to the code linked against Python) so I can use it from other C code. My Python methods are therefore thinnish wrappers around my pure-C code. So I can't do this in my 'library' code: if (black == white) { PyErr_SetString(PyExc_RuntimeError, "Remap failed"); } because this pollutes my pure-C code with Python. It's also far uglier than a simple assert(black != white); I believe that the Distutils compiler always sets NDEBUG, which means I can't use assert.h even in debug builds. Mac OS and Linux. Help! *one argument I've heard against asserting in C code called from Python.

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  • Change/check minimum iPhone OS for Universal apps?

    - by Moshe
    The dropdown in XCode shows a base SDK of 3.2, but my iPod Touch (2nd generation), running OS 3.1.3, will run the app just fine in debug mode. (Command + Return/Enter) What is the actual base SDK of my iPhone/iPod touch version of the app and how can I change this? Changing it by right clicking on the project name in the "Groups and Files" pane and changing "Base SDK" under the "Build", doesn't do much. Edit: While writing this question, I found that scrolling down in "Build" and changing "iPhone OS Deployment Target" seems to be what I'm looking for, I'm posting this anyway. Perhaps someone has more insight into this...

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  • Jquery Datepicker with XML file

    - by matt
    an extension of my last question, http://stackoverflow.com/questions/2562986/getdate-with-jquery-datepicker , I am trying to use the jquery datepicker to load specific info from xml file dependent on the date selected by the user. Similar code but i am trying to load and parse an xml file to read contents of the file for the particular date. In a perfect world the user would tap a date and below the datepicker html output would give the user specific times for the selected date instead of my last project of an image. my probelm is nothing is loading, so my question is what am i doing wrong? my code is as follows <!DOCTYPE html> <link type="text/css" href="css/ui-darkness/jquery-ui-1.8.custom.css" rel="stylesheet" /> <script type="text/javascript" src="js/jquery-1.4.2.min.js"></script> <script type="text/javascript" src="js/jquery-ui-1.8.custom.min.js"></script> <script type="text/javascript"> $(function(){ // Datepicker $('#datepicker').datepicker({ dateFormat: 'yy-mm-dd', inline: true, minDate: new Date(2010, 1 - 1, 1), maxDate:new Date(2010, 12 - 1, 31), altField: '#datepicker_value', onSelect: function(){ var day1 = $("#datepicker").datepicker('getDate').getDate(); var month1 = $("#datepicker").datepicker('getDate').getMonth() + 1; var year1 = $("#datepicker").datepicker('getDate').getFullYear(); var fullDate = year1 + "" + month1 + "" + day1; //var str_output ="<img src=\"http://69.89.20.27/images/a" + fullDate +".png\" width=\"100%\"/>"; //"<h1>"+fullDate+"</h1>"; //"<img src=\"http://69.*.*.*/images/a" + fullDate +".png\"/>"; //$('#page_output').html(str_output); var doc = loadXMLDoc('date.xml'); // loading the XML file var el = doc.getElementsByTagName('_'+date); // retrieving the elements corrsponding to a date, eg: _20100103 var page_output = document.getElementById('page_output'); if(el.length >= 1) { // matched XML data found for the specified date var dt = el[0].getElementsByTagName('date'); var great_times = el[0].getElementsByTagName('great_times'); var good_times = el[0].getElementsByTagName('good_times'); var str_output = "<h1><center>" + dt[0].childNodes[0].nodeValue + "</center></h1><br/><br>"; str_output += "<b>Excellent Times:</b><br> " + great_times[0].childNodes[0].nodeValue + "<br/><br>"; str_output += "<b>Good Times:</b><br> " + good_times[0].childNodes[0].nodeValue + "<br/><br>"; $('#page_output').html(str_output);// writing the results to the div element (page_out) } else { alert("Sorry","Action not allowed on this page"); page_output.innerHTML = ''; // No XML data found for the selected date reloadmainwDate(); return false; } return true; } }); //hover states on the static widgets $('#dialog_link, ul#icons li').hover( function() { $(this).addClass('ui-state-hover'); }, function() { $(this).removeClass('ui-state-hover'); } ); }); //var img_date = .datepicker('getDate'); //var day1 = $("#datepicker").datepicker('getDate').getDate(); //var month1 = $("#datepicker").datepicker('getDate').getMonth() + 1; //var year1 = $("#datepicker").datepicker('getDate').getFullYear(); //var fullDate = year1 + "-" + month1 + "-" + day1; //var date = $('#datepicker').datepicker({ dateFormat: 'dd-mm-yy' }); //var str_output = "<h1><center><p>"+ date + "</p></center></h1>"; //$('#page_output')[0].innerHTML = str_output; // writing the results to the div element (page_out) </script> <script> function loadXMLDoc(dname) { var xmlDoc; // IE 5 and IE 6 if(typeof ActiveXObject != 'undefined') { xmlDoc=new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async=false; xmlDoc.load(dname); return xmlDoc; } else if (window.XMLHttpRequest) // firefox { xmlDoc=new window.XMLHttpRequest(); xmlDoc.open("GET",dname,false); xmlDoc.send(""); return xmlDoc.responseXML; } alert("Error loading document"); return null; } <!-- Datepicker --> <div id="datepicker"></div> <!-- Highlight / Error --> <div id="page_output"></div> </body>

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  • ASP.NET MVC 2 and authentication using WIF (Windows Identity Foundation)

    - by Russ Cam
    Are there any decent examples of the following available: Looking through the WIF SDK, there are examples of using WIF in conjunction with ASP.NET using the WSFederationAuthenticationModule (FAM) to redirect to an ASP.NET site thin skin on top of a Security Token Service (STS) that user uses to authenticate (via supplying a username and password). If I understand WIF and claims-based access correctly, I would like my application to provide its own login screen where users provide their username and password and let this delegate to an STS for authentication, sending the login details to an endpoint via a security standard (WS-*), and expecting a SAML token to be returned. Ideally, the SessionAuthenticationModule would work as per the examples using FAM in conjunction with SessionAuthenticationModule i.e. be responsible for reconstructing the IClaimsPrincipal from the session security chunked cookie and redirecting to my application login page when the security session expires. Is what I describe possible using FAM and SessionAuthenticationModule with appropriate web.config settings, or do I need to think about writing a HttpModule myself to handle this? Alternatively, is redirecting to a thin web site STS where users log in the de facto approach in a passive requestor scenario?

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  • iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?

    - by LKM
    I'm writing a web app for the iPad (not a regular App Store app - it's written using HTML, CSS and JavaScript). Since the keyboard fills up a huge part of the screen, it would make sense to change the app's layout to fit the remaining space when the keyboard is shown. However, I have found no way to detect when or whether the keyboard is shown. My first idea was to assume that the keyboard is visible when a text field has focus. However, when an external keyboard is attached to an iPad, the virtual keyboard does not show up when a text field receives focus. In my experiments, the keyboard also did not affect the height or scrollheight of any of the DOM elements, and I have found no proprietary events or properties which indicate whether the keyboard is visible.

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  • Python XLWT attempt to overwrite cell workaround

    - by PPTim
    Hi, Using the python module xlwt, writing to the same cell twice throws an error: Message File Name Line Position Traceback <module> S:\******** write C:\Python26\lib\site-packages\xlwt\Worksheet.py 1003 write C:\Python26\lib\site-packages\xlwt\Row.py 231 insert_cell C:\Python26\lib\site-packages\xlwt\Row.py 150 Exception: Attempt to overwrite cell: sheetname=u'Sheet 1' rowx=1 colx=12 with the code snippet def insert_cell(self, col_index, cell_obj): if col_index in self.__cells: if not self.__parent._cell_overwrite_ok: msg = "Attempt to overwrite cell: sheetname=%r rowx=%d colx=%d" \ % (self.__parent.name, self.__idx, col_index) raise Exception(msg) #row 150 prev_cell_obj = self.__cells[col_index] sst_idx = getattr(prev_cell_obj, 'sst_idx', None) if sst_idx is not None: self.__parent_wb.del_str(sst_idx) self.__cells[col_index] = cell_obj Looks like the code 'raise'es an exception which halts the entire process. Is removing the 'raise' term enough to allow for overwriting cells? I appreciate xlwt's warning, but i thought the pythonic way is to assume "we know what we're doing". I don't want to break anything else in touching the module.

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  • Convert WMI CimType to System.Type

    - by Anonymous Coward
    I am trying to write a generic extension to turn a ManagementObjectCollection into a DataTable. This is just to make things easier for a startup script/program I am writing. I have ran into a problem with CimType. I have included the code I have written so far below. public static DataTable GetData(this ManagementObjectCollection objectCollection) { DataTable table = new DataTable(); foreach (ManagementObject obj in objectCollection) { if (table.Columns.Count == 0) { foreach (PropertyData property in obj.Properties) { table.Columns.Add(property.Name, property.Type); } } DataRow row = table.NewRow(); foreach (PropertyData property in obj.Properties) { row[property.Name] = property.Value; } table.Rows.Add(row); } return table; } } I have found the a method which I think will work at http://www.devcow.com/blogs/adnrg/archive/2005/09/23/108.aspx. However it seems to me like there may be a better way, or even a .net function I am overlooking.

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  • Link between low level drivers and tty drivers

    - by agent.smith
    I was writing a console driver for linux and I came across the tty interface that I need to set up for this driver. I got confused as to how tty drivers are bound with low-level drivers. Many times the root file system already contains a lot of tty devices. I am wondering how low-level devices can bind to one of the existing tty nodes on the root file system. For example, /dev/tty7 : Node on the root file system. How does a low-level device driver connect with this node? Or should that low-level device define a completely new tty device?

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  • QListView/QListWidget with custom items

    - by Daniel
    I'm writing my first Qt application with PyQt and am having some trouble creating a custom list view. I'd like the list to contain arbitrary widgets (one custom widget in particular). How would I go about this? It seems that the alternative would be to create a table or grid view wrapped in a scrollbar. However, I'd like to be able to take advantage of the model/view approach as well as the nesting (tree-view) support the built-ins handle. EDIT: To clarify, this widget is interactive (contains buttons), so the solution requires more than painting a widget.

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  • UNIX Shell-scripting: UDV

    - by Myx
    I am writing a simple unix shell script: #!/bin/bash # abort the script if a command fails set -e # abort the script if an unitialized shell variable is used set -u i = 0; while [$i -l 1] do src/meshpro input/martini.off video/noise/image$i.off -noise $i src/meshview video/noise/image$i.off -output_image video/noise/image$i.jpg -exit_immediately i='expr $i + 0.1' done When I try to run the script, I get the following error: line 14: i: command not found. I used a tutorial to apply to my code. Any suggestions on what I'm doing wrong?

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