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  • Delphi: Get MAC of Router

    - by Daniel Marschall
    Hello, I am using Delphi and I want to determinate the physical MAC address of a network device in my network, in this case the Router itself. My code: var idsnmp: tidsnmp; val:string; begin idsnmp := tidsnmp.create; try idsnmp.QuickSend('.1.3.6.1.2.1.4.22.1.2', 'public', '10.0.0.1', val); showmessage(val); finally idsnmp.free; end; end; where 10.0.0.1 is my router. Alas, QuickSend does always send "Connection reset by peer #10054". I tried to modify the MIB-OID and I also tried the IP 127.0.0.1 which connection should never fail. I did not find any useable Tutorials about TIdSNMP at Google. :-( Regards Daniel Marschall

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  • Algorithm for creating a school timetable.

    - by cand
    Hello all. I've been wondering if there are known solutions for algorithm of creating a school timetable. Basically, it's about optimizing "hour-dispersion" (both in teachers and classes case) for given class-subject-teacher associations. We can assume that we have sets of classes, lesson subjects and teachers associated with each other at the input and that timetable should fit between 8AM and 4PM. I guess that there is probably no accurate algorithm for that, but maybe someone knows a good approximation or hints for developing it. P.S. I know, there was http://stackoverflow.com/questions/1259686/school-timetable-generation-algorithm-closed , but unlike in that case, I'm not looking for actual implementation, rather for thoughts on how to do it or why it's impossible.

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  • ASPxGridView Pager disappears

    - by Jo Asakura
    Hello all, I use the ASPxGridView with paging, pager settings is next: <SettingsPager Mode="ShowPager" Position="Bottom" Visible="true"> Also I have a CustomButtonInitialize event: protected void gridViewInvoices_CustomButtonInitialize(object sender, ASPxGridViewCustomButtonEventArgs e) { if (!e.IsEditingRow) { Invoice invoice = (Invoice)gridViewInvoices.GetRow(e.VisibleIndex); if (invoice != null) { if (e.ButtonID == "btnConfirmPayment") { e.Visible = invoice.PaymentConfirmedDate.HasValue ? DefaultBoolean.False : DefaultBoolean.Default; } } } } When I open the page with this grid the pager disappears but if I comment my CustomButtonInitialize event: protected void gridViewInvoices_CustomButtonInitialize(object sender, ASPxGridViewCustomButtonEventArgs e) { /*if (!e.IsEditingRow) { Invoice invoice = (Invoice)gridViewInvoices.GetRow(e.VisibleIndex); if (invoice != null) { if (e.ButtonID == "btnConfirmPayment") { e.Visible = invoice.PaymentConfirmedDate.HasValue ? DefaultBoolean.False : DefaultBoolean.Default; } } }*/ } Pager appears again, how can I fix it and how is pager depend on this event (CustomButtonInitialize)? Best regards, Alex.

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  • CodeIgniter: Can't load database from within a model

    - by thedp
    Hello, I've written a new model for my CodeIgniter framework. I'm trying to load the database from within the constructor function, but I'm getting the following error: Severity: Notice Message: Undefined property: userdb::$load Filename: models/userdb.php Line Number: 7 Fatal error: Call to a member function database() on a non-object in /var/www/abc/system/application/models/userdb.php on line 7 Here is my model: <?php class userdb extends Model { function __construct() { $this->load->database(); } ?> What am I doing wrong here? Thank you.

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  • Mongo Map Reduce first time

    - by James
    Hello guys, First time Map/Reduce user here, and using MongoDB. I have a lot of page visit data which I'd like to make some sense of by using Map/Reduce. Below is basically what I want to do, but as a total beginner a Map/Reduce, I think this is above my knowledge! Find all visits to current page where external = true within the last 30 days (unix timestamp, I deal with the date ranges in PHP and then the array, not mongo date) Group all visits by referral location For each referral location, calculate how many then went to visit a page which has a certain word in the [tags]. I'm using the normal Mongo PHP extension if that has an impact.

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  • WPF Orthographic Camera. Region of view

    - by Evgeny
    Hello. I added Orthographic Camera to my project. I want to show my chart on screen proportional. For example height is 4 and width 4 (region from -2 to 2). I set width to 4 and it perfectly fit my square in widht. but i have problem with height. The chart top and bottom is always out of screen space. Why this happens and how to set to camera view the same width and height ? Camera position: 0,0,5 Viewport have size: 571.5x497 On image we can see on vertical axis points from 2 to -2 but on vertical much more. How to make them same? Image: http://i076.radikal.ru/1003/96/273c74ed9add.png Sorry for my English.

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  • MySQL and GROUP_CONCAT() maximum length

    - by zewaren
    Hello everyone, I'm using GROUP_CONCAT() in a MySQL query to convert multiple rows into a single string. However, the maximum length of the result of this function is 1024 characters. I'm very well aware that I can change the param group_concat_max_len to increase this limit: SET SESSION group_concat_max_len = 1000000; However, on the server I'm using, I can't change any param. Not by using the preceding query and not by editing any configuration file. So my question is: Is there any other way to get the output of a multiple row query into a single string? Thank you for your answers.

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  • Resize Clipping Path on window resize in WPF

    - by blobkat
    Hello, I was wondering how to resize a Clipping path dynamically when resizing the window. Right now I'm taking a rectangle in Expression Blend that resizes with the window. Applying this rectangle to a circle as a clipping path makes the rectangle fixed, and it won't resize anymore. I've seen different ways of making clipping paths in XAML, in the Clip="" property as well as style markup. But I haven't succeeded yet in finding a proper XAML solution. Can anyone point me in the right direction? Thanks!

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  • How can I place a SurfaceView inside one or more scrollviews ?

    - by Mervin
    Hello, I'm making a 2D game for Android and I've encountered the following problem: - I have made a class that extends SurfaceView and draws my graphics (the size of the canvas that I use has to be 1664x864). This is ofcourse too big for the screen so I needed scrolling, I chose to use google's ScrollView and HorizontalScrollView (nested) for this, But whenever I add my SurfaceView to a ScrollView (whether it's 1 or 2) via AddChild it only draws the ScrollView , SurfaceCreated() isn't even called on the SurfaceView. (Drawing the SurfaceView in a layout without adding it to a ScrollView does work.) I realize that there are other options for scrolling like a screen-sized canvas and bitmap offsets but this would really be my preferred way to go. I would really appreciate some help to make this work.

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  • Multiple Uploadifive in one page is not working

    - by jalf
    Hello I take my chances here at stack, because uploadify forums is not very responsive and full of spam, I am using uploadifive w/ drag and drop it was amazing but multiple upload buttons in one page is not working. Below is my code: HTML <input type="file" name="file_upload_1" id="file_upload_1"/> <input type="file" name="file_upload_2" id="file_upload_2"/> JS $('#file_upload_1').uploadifive({ 'auto' : true, 'method' : 'post', 'queueID' : 'queue', 'fileType' : ['text/x-comma-separated-values', 'text/comma-separated-values', 'application/octet-stream', 'application/vnd.ms-excel', 'application/x-csv', 'text/x-csv', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel','application/force-download'], 'uploadScript' : 'upload.php', 'onUploadComplete' : function(file, data) { console.log(data); } }); $('#file_upload_2').uploadifive({ 'auto' : true, 'method' : 'post', 'queueID' : 'queue', 'fileType' : ['text/x-comma-separated-values', 'text/comma-separated-values', 'application/octet-stream', 'application/vnd.ms-excel', 'application/x-csv', 'text/x-csv', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel','application/force-download'], 'uploadScript' : 'upload.php', 'onUploadComplete' : function(file, data) { console.log(data); } });

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  • Wpf multiple cameras

    - by melculetz
    Hello everybody, I wanted to create an WPF 3D application that allows the user to load a MeshGeometry3D and view it from 2 perspective (back and front) in the same time, in 2 different windows. First I thought of creating 2 cameras inside the same viewport, but it seams that the Viewport3D class allows a single camera. Then I tried to create 2 viewports, each with a different camera position, but I cannot add the same object in both viewports. Is there any way of seeing the same object through 2 different cameras in the same time?

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  • GNUPLOT: 2d histogram from set of points.

    - by Arman
    Hello, I have a pairs of the points with their weights: #x y w 0.111342 0.478917 0.232487 0.398107 1.79559 0.221714 0.200731 2.58651 0.0776068 0.0967412 1.49904 0.0645355 6.17638 8.63101 0.715604 0.306128 3.10917 0.0984595 0.340707 3.19344 0.10669 7.18627 8.59859 0.835751 8.56 9.63894 0.888065 5.14272 6.86074 0.749587 0.747202 3.812 0.196013 8.71891 10.1355 0.860232 0.346714 1.45895 0.237647 5.21932 8.84491 0.590094 9.42138 12.2082 0.771725 0.215627 2.42317 0.0889856 How to plot nice 2d histogram image with color bar? I found nice density map description but I don't wont to go via python. I there way to use only gnuplot scripting? Kind Regards Arman.

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  • Merge Cells Vertically in RTF

    - by Jimmy Johnson
    I need to programmatically generate an RTF document with a table that has a column vertically merged., e.x. ______________________________ | merged | foo | hello | | cell | | | | right |--------|----------| | here | bar | world | |_________|________|__________| I looked up online and found that the codes are \clvmgf and \clvmrg but I can't find a decent example. I made a text rtf using MS word, but there's too much junk rtf codes in it for me to figure it out where to put the \clvmgf and \clvmrg to get this to work. Could someone give me an rtf for above example table with no extraneous rtf codes so I can figure out how \clvmgf and \clvmrg works? Any additional explanation would also be greatly appreciated. Thanks!

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  • ASP.NET MVC, Spring.NET, NHibernate initial setup/example/tutorial.

    - by Bubba88
    Hello! Have you been doing some ASP.NET MVC developement involving Spring.NET and NHibernate both? I would like to see an informative example of such setup, so I could build my own project off that. I tried googling, found some pretty things like S#arp Architecture, an article about regular ASP.NET (WebForms) integrated with the frameworks and so on. Still, I'm missing a good tutorial on ASP.NET MVC & the subj. P.S.: I do know how Spring and Hibernate works, I just need to plug them into an MVC application. Don't want to use S#arp Architecture by now. P.P.S: I'll update the links later, including this one:

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  • Excel COM - Unable to get the Open property of the Workbooks class?

    - by Abs
    Hello all, I have tried this and I get this error: $excel_app = new COM("Excel.Application") or Die ("Did not connect"); $Workbook = $excel_app->Workbooks->Open('Variables.xls') or Die('Did not open filename'); I get this error: Unable to get the Open property of the Workbooks class What does this error mean? In addition, is there an API or a function list for accessing excel via COM. Thanks all Update Full error: exception 'com_exception' with message 'Source: Microsoft Excel Description: Unable to get the Open property of the Workbooks class' in C:\excel.php:22 Stack trace: #0 C:\excel.php(22): variant->Open('C:\...') #1 {main}

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  • Is it safe to delete the "ipch" folder - Precompiled headers?

    - by Jamie Keeling
    Hello, I was looking through the folder for an application I am working on and noticed the "ipch" folder, for my solution which has two small projects it weighs in at about 90mb+ in size. I have found an article discussing the use for the files and was wondering if they were safe to delete? It's for an assignment hand in and I would like to keep the electronic hand in as small as possible. If I were to delete the folder will the application remain in a safe and stable state? I apologise if this is a simple question, I have only just started using Visual Studio 2010. Thanks! Pre-Compiled Headers

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  • uiview animation used to work on iphone sdk 2.2 and now it doesn't on sdk 3.0

    - by nico
    hello! I have an animation block that worked fine when runnung the app on iphone OS 2.2. Now I compile the same code for iphone OS 3.0 and it doesn't work. UIViewAnimationTransition trans = UIViewAnimationTransitionFlipFromLeft; [UIView beginAnimations: nil context: NULL]; UIView *forview = [[self view] superview]; [UIView setAnimationTransition: trans forView:forview cache: YES]; [UIView setAnimationDuration:1.0]; [[self navigationController] popViewControllerAnimated:NO]; [UIView commitAnimations]; What the code does, it uses the navigation controller to change the top most view, but with the flip transition and not with the built in one. any ideas on what might have change in the sdk or what I'm doing wrong? thanks!!

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  • Suggestion on algorithm to distribute objects of different value

    - by Unknown
    Hello, I have the following problem: Given N objects of different values (N < 30, and the values are multiple of a "k" constant, i.e. k, 2k, 3k, 4k, 6k, 8k, 12k, 16k, 24k and 32k), I need an algorithm that will distribute all items to M players (M <= 6) in such a way that the total value of the objects each player gets is as even as possible (in other words, I want to distribute all objects to all players in the fairest way possible). I don't need (pseudo)code to solve this (also, this is not a homework :) ), but I'll appreciate any ideas or links to algorithms that could solve this. Thanks!

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  • System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {00020

    - by Tomas I
    Hello. I have a problem with a C# ASP .NET project in Visual Studio 2008 This problem started when I reinstalled my computer with Windows 7 ultimate 64-bit. To this I'm also using Office 2007. The error message I'm getting is: {System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005. at xxx.Utility.WordDocument..ctor(String filePath, HttpServerUtility util) at customer_communication.BuCreate_click(Object sender, EventArgs e) in c:\xxx\Website\customer\communication.aspx.cs:line 127} If anyone can help me I would rely appreciate it.

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  • Developing for Mac, without a Mac.

    - by speeder
    Hello I am a "lone wolf" game developer, and games sell more on Mac (because noone make Mac games... bizarre), so I need to make Mac games. My problem is: I don't own a Mac, and I have no way to get one (unless someone donate one to me...), I don't have money even to upgrade my crappy 3 year old PC, or buy a netbook... So, how I develop for Mac without a Mac? I guess that if I installed Mac OS on my machine, it would do, or can I just use Open Darwin instead? Or Mac OS run on virtual machines?

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  • C# How to check if an FTP Directory Exists

    - by Billy Logan
    Hello Everyone, Looking for the best way to check for a given directory via FTP. currently i have the following code: private bool FtpDirectoryExists(string directory, string username, string password) { try { var request = (FtpWebRequest)WebRequest.Create(directory); request.Credentials = new NetworkCredential(username, password); request.Method = WebRequestMethods.Ftp.GetDateTimestamp; FtpWebResponse response = (FtpWebResponse)request.GetResponse(); } catch (WebException ex) { FtpWebResponse response = (FtpWebResponse)ex.Response; if (response.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable) return false; else return true; } return true; } This returns false whether the directory is there or not. Can someone point me in the right direction. Thanks in advance, Billy

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  • Code to plug into a Zend Framework project

    - by bluedaniel
    Hello everyone, Im currently working on a website in the Zend Framework and finding it very useful indeed. I want both a blog and a forum in this website and wondered if there are any open-source projects of this nature that I would be able to simply copy and paste into my modular project. I was using Wordpress and BBpress previously so something like that would be good, although I do not want to hack my Zend Auth to use the Wordpress authentication system, seems like too much hard work/hacky to do. So any ideas? Plus where are the best Zend framework 'plugins' (similar to wordpress)? Thanks everyone.

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  • Initial selected Item in an UITabBar without a UITabBarController

    - by juan.xavier
    Hello, How do I set the default selected UITabBarItem in an UITabBar that is within an UIView, not an UITabBarController? Just to clarify, the UIView does implement the protocol and the didSelectItem method works. At run-time, the tabbar works and the tabbaritems selected when the user touches them. My problem is setting the default selected item. If i use [myTabbar setSelectedItem] within the didSelectItem method it works. But outside of it, it doesn't (for example, in the viewDidLoad method of my UIView). Thanks!

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  • WPF: OnRender and Hit Testing

    - by stefan.at.wpf
    Hello, when using OnRender to draw something on the screen, is there any way to perform Hit Testing on the drawn graphics? Sample Code protected override void OnRender(System.Windows.Media.DrawingContext drawingContext) { base.OnRender(drawingContext); drawingContext.DrawRectangle(Brushes.Black, null, new Rect(50, 50, 100, 100)); } Obviously one has no reference to the drawn Rectangle which would be necessary to perform hit testing or am I wrong about this? I know I can use DrawingVisual, I'm just curious if my understanding is correct, that using OnRender to draw something you can't perform any hit testing on the drawn things?

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  • django modelformset - one form per related table row

    - by Toby
    Hello, I have two models: class Model1(): name = CharField() url = CharField() class Model2(): model1 = ForeignKey(Model1) user = ForeignKey(User) zzz = CharField() There are 5 rows for model1 in the database, these are fixed and will rarely change. I need to display a formset for model2 that allows users to enter the zzz value, the formset must always show one form per row in the model1 table, the label for each form in the formset must be the name of the related model1. If the user deletes a model2 in the formset the next time the page loads it will render an empty zzz value for that form and the user must be able to edit the previous zzz value - meaning it must be pre populated with all model2 rows associated with the user. The idea is to print each row in the model1 table as a form instead of the user selecting the related model1 name in a select box. I know its not that complicated, but I'm seriously stumped and keep going round in circles!! Many thanks in advance. Similar to http://stackoverflow.com/questions/298779/form-or-formset-to-handle-multiple-table-rows-in-django

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