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• How to identify a selected slide is a master slide in PowerPoint 2003 Programmatically

  - by Gayan

  Recently I was working with a code to open a PowerPoint presentation (by vb.net) object and process each slide by slide. If processing slide is not null or a master slide I need to skip and go to the next one. Can anyone show me how to check whether a given slide is a master slide? Is there any way to check it by slide type? Public Sub CheckForProprtychecker(ByVal Presn As PowerPoint.Presentation) For SlideIndex As Integer = 1 To Presn.Slides.Count() If Presn.Slides(SlideIndex) Is Nothing Then Continue For End If ‘do other process Next End Sub

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• Drupal: Views: exposed Taxonomy filter: additional functionalities

  - by Patrick

  hi! I'm using Drupal Views with an exposed filter (improved with better exposed filters module) based on taxonomy. I have a list of nodes and for each node I assigned several tags. I would like to add the following functionalities to the filter: 1 - when few tags are selected, I would like to disable all tags that are not possible to combine with the selected ones. In other terms, disable a tag if it is not visible in the filtered nodes. In this way I highlight only a subset of tags, to help the user to continue filtering the content. 2 - when I move the mouse over an article I would like to highlight the tags that are associated with such node with a different color. That is, if I selected TAGA, and the node also contains TAGB, and TAGC, I would like to highlight the last 2 tags if I move the mouse over the node. thanks

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• WPF datagrid bind to previous row's cell

  - by James Price

  Hi, I have a datagrid and one of the columns is going to be a checkbox column. To give the background, the checkbox is going to turn something on / off and each row in the datagrid is going to be for a differernt time (in time order, ascending). Is it possible for one row's checkbox to be bound to the state of the previous row? That way if somebody turns off at 10am it will continue to be turned off until such a time that it is turned on again. Hope that makes sense, any help would be great. Sure this sounds like something that should be do-able with databindings just not sure on the way to do it! Thanks.

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• wpf manually generate TreeViewItem container

  - by viky

  I am creating a TreeView at runtime. It has several nodes(TreeViewItem), each one having a name. Initially it is collapsed. A separate comboBox displays Names of all TreeViewItem. I have to highlight a TreeViewItem based on the Name selected. I am using a recursive function and gets the TreeViewItem container like this: if (parent.ItemContainerGenerator.Status != GeneratorStatus.ContainersGenerated) continue; TreeViewItem container = parent.ItemContainerGenerator.ContainerFromItem(child).As<TreeViewItem>(); but it is parent.ItemContainerGenerator.Status = GeneratorStatus.NotStarted for all the collapsed items. How can I generate containers for them manually(Without expanding them)?

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• Memory Efficient file append

  - by lboregard

  i have several files whose content need to be merged into a single file. i have the following code that does this ... but it seems rather inefficient in terms of memory usage ... would you suggest a better way to do it ? the Util.MoveFile function simply accounts for moving files across volumes private void Compose(string[] files) { string inFile = ""; string outFile = "c:\final.txt"; using (FileStream fsOut = new FileStream(outFile + ".tmp", FileMode.Create)) { foreach (string inFile in files) { if (!File.Exists(inFile)) { continue; } byte[] bytes; using (FileStream fsIn = new FileStream(inFile, FileMode.Open)) { bytes = new byte[fsIn.Length]; fsIn.Read(bytes, 0, bytes.Length); } //using (StreamReader sr = new StreamReader(inFile)) //{ // text = sr.ReadToEnd(); //} // write the segment to final file fsOut.Write(bytes, 0, bytes.Length); File.Delete(inFile); } } Util.MoveFile(outFile + ".tmp", outFile); }

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• binary sed replacement

  - by Ryan

  Hello, I was attempting to do a sed replacement in a binary file however I am beginning to believe that is not possible. Essentially what I wanted to do was similar to the following: sed -bi "s/\(\xFF\xD8[[:xdigit:]]\{1,\}\xFF\xD9\)/\1/" file.jpg Or more notably... scan through a binary file until the hex code FFD8, continue reading until FFD9, and only save what was between them (discards the junk before and after, but saves FFD8 and FFD9 as part of the file still) Is there a good way to do this? Even if not using sed?

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• R: How to tell lapply to ignore an error and process the next thing in the list?

  - by John

  I have an example function below that reads in a date as a string and returns it as a date object. If it reads a string that it cannot convert to a date, it returns an error. testFunction <- function (date_in) { return(as.Date(date_in)) } testFunction("2010-04-06") # this works fine testFunction("foo") # this returns an error Now, I want to use lapply and apply this function over a list of dates: dates1 = c("2010-04-06", "2010-04-07", "2010-04-08") lapply(dates1, testFunction) # this works fine But if I want to apply the function over a list when one string in the middle of two good dates returns an error, what is the best way to deal with this? dates2 = c("2010-04-06", "foo", "2010-04-08") lapply(dates2, testFunction) I presume that I want a try catch in there, but is there a way to catch the error for the "foo" string whilst asking lapply to continue and read the third date?

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• Will Delphi be there in future ?

  - by devdude

  Yes, there is a version 2009. I know Delphi has a big community since years (10 plus)and I believe you could create native windows exe before Visual Basic got to speed (with all its dll's nighmare). But is it future-proof ? Is there a need or market for a non-crossplatform native all-in-one executable ? Will Embarcardero ex Codegear ex Borland continue to push it ? Why is it so expensive ? Who (non company) can afford it, in order to learn it ?

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• Getting started with modern software architecture and design using a book

  - by bitbonk

  I am a rather oldschool developer with some basic knowledge of software design principles and a good background on classic (gof) design patterns. While I continue my life as such I see lots of strange buzzwords emerge: Aspectoriented Design, Componentoriented Design, Domain Driven Design, Domain Specific Languages, Serviceoriented (SOA) Design, Test Driven Design, Extreme Programming, Agile Development, Continuous Integration, Dependency Injection, Software Factories ... Is there good book around that I can take with me on a roadtrip while it is taking me on a trip through all (most) of the above, delivering an 10,000 foot view on modern software archiceture and desing principles and approaches.

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• Stop applet execution on load, pause/resume using javascript?

  - by Zane

  I'm making something of a java applet gallery for my website (processing applets, if you're interested) and I'd like to keep the applets from running when the sit first loads. Then, when the appropriate button is clicked, a piece of javascript would tell the applet to continue execution until another button is pressed to stop it. I know that I can use appletName.start() and appletName.stop(), but it doesn't seem to work on load, at least not well. I'm using element.getElementsById( "applet" ) to get the applets to use the start and stop methods on. It slows Firefox to a crawl for some reason.

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• Free for personal use license?

  - by Lance May

  I'm trying desperately to find a software licensing model that would allow me to make my product completely open to the public domain for personal use/modification, but would be able to be sold commercially. I know such a beast exists, and I'm sure in many flavors. I just can't find it. ;( What I'm hoping for is a way to allow people the opportunity to benefit from the product in an "open source" fashion, while still allowing me to have a revenue on it to be able to continue development full time. Thanks much in advance.

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• seeing C# windows forms project code from F#

  - by Pessimist

  I have a C# Windows Forms project open with some C# code in it. Question: How can I have an F# file that I can write F# code in but still referencing all the C# code I have on Form1.cs (including the GUI). I can successfully do this: - Create a C# Windows Forms project - Create a F# Library project - Reference the F# Library DLL from my C# project - That way I can call F# functions from C# But I still can't see my buttons and textboxes from F# I understand that that is because it's a library and it can't reference System.Windows.Forms So how do I fix this? I don't want it to be a library or this or that, I just want it to be a file that will allow me to write F# code while being able to reference my C# Form and code. I guess you can say I want an F# file that is also a "partial class Form1" so that I can continue writing code for the same Project, but using F# instead. How do I do that?

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• hadoop beginners question

  - by Omnipresent

  I've read some documentation about hadoop and seen the impressive results. I get the bigger picture but am finding it hard whether it would fit our setup. Question isnt programming related but I'm eager to get opinion of people who currently work with hadoop and how it would fit our setup: We use Oracle for backend Java (Struts2/Servlets/iBatis) for frontend Nightly we get data which needs to be summarized. this runs as a batch process (takes 5 hours) We are looking for a way to cut those 5 hours to a shorter time. Where would hadoop fit into this picture? Can we still continue to use Oracle even after hadoop?

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• How can I implement forum privileges

  - by RobertPitt

  I've started developing a forum application in PHP on my MVC Framework and I've got to the stage where I assign permissions to members (for example: READ, WRITE, UPDATE, DELETE). Now, I know I can add 5 columns under the user table in my database and set them to 1 | 0, but that to me seems like too much if I want to add other rules, like MOVE for example. And how can I dynamically assign these privileges them to users individually? I've heard of using a bitmasks, but it would be really good if I could fully understand them before I continue. Do you have an example of how I might implement this?

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• Starting x11vnc remotely when X server is already running

  - by Madiyaan Damha

  I have a ubuntu linux machine that I have already logged into and X server is running (it is pass the login manager like gdm). I can access this machine through ssh. My goal is to start x11vnc on this machine and attach it to the X server that is already running. When I ssh into the machine and start x11vnc, it says: X11 was unable to open the X DISPLAY ":0", it cannot continue. How can I start x11vnc on the remote machine if I don't have physical access to it and Xserver has already started. The reason I want to do this is because the remote machine has several windows open that I want to work on. Thanks,

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• When do you learn from your mistakes?

  - by smayers81

  When are you supposed to learn from your mistakes in coding / design? Is it something you take with you to the next project or do you learn in the middle of your current one, sacrificing consistency for cleaner, more well-informed code? For example, my application can be distinctly demarcated down two lines of business -- say one side is for sales and the other is for marketing. Both are somewhat tied together, but as far as the team structure, use cases, developers, etc. the app consists of the Sales code and the Marketing Code. Now, say the Sales code went in first and while good-intentioned, made some bad mistakes. Should the Marketing Code follow suit and make the same mistakes for the sake of consistency or should Marketing architects and designers instead learn from the mistakes that Sales made and developer a cleaner codebase, even though Sales and Marketing are in the exact same system? Basically, do you learn from your mistakes while in a project or do you continue to pile crap on top of crap?

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• Best Online Programming Degree? (Masters Level)

  - by Jason

  I am less then a year from graduating with my bachelors in web development, however I would like to continue on with a masters in programming. As far as I can tell, what I want is a masters in software engineering. Sadly my current college only offers more management oriented masters level degrees, and I want something that is programming, not business. Ultimately my goal is to teach online and work freelance on the side. Here's the problem - I am visually impaired, so I do not drive and I prefer to take my classes entirely online. I have heard enough to avoid university of phoenix... and I have heard some good about walden, regis, and penn state's online MSSE programs. I am wondering if anyone here knows of any other good ones, or ones I should avoid. I have heard mixed reviews of Colorado Tech.

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• Configuring log4net appenders via XML file *and* code

  - by Dave

  I started to play with log4net today and so far, I really like it. In order to preserve our current logging functionality, the app needs to create a new log file whenever the application is started. The log file name has the date and time stamp encoded in it. Currently, I've got log4net configured via an XmlConfigurator, which works great, except that the filename for my RollingFileAppender is hardcoded in the configuration XML file. I'd like to continue to use the XmlConfigurator, but after calling Configure(), I want to get at the RollingFileAppender and, in code, change its file value to be a dynamically-generated string. The sample documentation online seems to be down right now, but I've poked through the SDK reference, and it looks like I could use the Heirarchy and GetAppenders() to do what I need to do. Am I on the right track?

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• Emacs: ac-slime for auto complete

  - by Boris

  I am trying to add auto complete for *.lisp files. My slime setting is: (add-to-list 'load-path "~/.emacs.d/plugins/slime/") (setq slime-lisp-implementations '((sbcl ("/opt/sbcl/bin/sbcl" "--core" "/opt/sbcl/lib/sbcl/sbcl.core") :coding-system utf-8-unix :env ("SBCL_HOME=/opt/sbcl/lib/sbcl")) (ccl ("/opt/ccl/lx86cl64") :coding-system utf-8-unix))) (require 'slime-autoloads) (slime-setup '(slime-fancy)) And ac-slime setting is: (require 'ac-slime) (add-hook 'slime-mode-hook 'set-up-slime-ac) (add-hook 'slime-repl-mode-hook 'set-up-slime-ac) (eval-after-load "auto-complete" '(add-to-list 'ac-modes 'slime-repl-mode)) Each time I type a word in *.lisp file, auto complete popups some candidates but after a second minibuffer outputs error in process filter: Reply to canceled synchronous eval request tag=slime-result-6-19579 sexp=(swank:simple-completions "de" (quote "COMMON-LISP-USER")) and the popup stuck for a while. After that I can continue my selection. My question is how to remove this error and stuck? Any help is appreciated.

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• recv returns old data

  - by anon

  This loop is supposed to take data from a socket line by line and put it in a buffer. For some reason, when there is no new data to return, recv returns the last couple lines it got. I was able to stop the bug by commenting out the first recv, but then I cant tell how long the next line will be. I know it's not a while(this->connected){ memset(buf, '\0', sizeof(buf)); recv(this->sock, buf, sizeof(buf), MSG_PEEK); //get length of next message ptr = strstr(buf, "\r\n"); if (ptr == NULL) continue; err = recv(this->sock, buf, (ptr-buf), NULL); //get next message printf("--%db\n%s\n", err, buf); tok[0] = strtok(buf, " "); for(i=1;tok[i-1]!=NULL;i++) tok[i] = strtok(NULL, " "); //do more stuff }

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• AS3: Showing bufferlength of NetStream

  - by Tinelise

  I am trying to show the buffered amount of a video that is playing. I am using netstream.bufferLength to do this and it kinda seems to be right. Exept from the fact that it is almost constantly the same amount that is buffered. This can't be right? I want it to be like youtube where you can press pause and the buffer will continue to rise. When I click pause it just stays the same.. Anybody knows how to show buffer length?

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• Sync Framework: SqlSyncProvider ItemConflicting vs ApplyChangeFailed

  - by Paul Smith

  I'm trying to use design a syncronisation application that syncs changes between different SQL Server databases. I came up with a design based around receiving the ItemConflicting event, storing the knowledge associated with the conflict, and resolving all conflicts off-line. However, it seems that I can only get the ApplyChangeFailed event to fire. Is there some reason why SqlSyncProvider does not use the ItemConflicting event? Am I just hooking up to the event wrongly? The reason I care is that the ItemConlficting event allows me to simply log the conflict and continue with the rest of the synchronisation in a way that I can't seem to achieve with the ApplychangeFailed event.

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• Why trigger fired only once when running on a JQuery Object?

  - by Shlomi.A.

  Hi I got an array. I'm running over it for (i = 0; i < sugestionsArray.length; i++) { $('li.groupCode' + sugestionsArray[i] + ' span').addClass('checkedInput'); $('option[value=' + sugestionsArray[i] + ']').attr('selected', 'selected'); } And this loop runs 3 times perfectly, adding classname and playing with the option. instead of adding a clasname, i'm trying to trigger a click over the span $('li.groupCode' + sugestionsArray[i] + ' span').trigger('click'); which in his turn has a click event bind to it using jq as well Span.click(function() {}) for some reason my loop breaks after the first click. he is leaving the loop and don't continue to the next 2 loops after him. only the first span is been clicked. does anyone has an idea?

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• Best practice for installing python modules from an arbitrary VCS repository

  - by fmark

  I'm newish to the python ecosystem, and have a question about module editing. I use a bunch of third-party modules, distributed on PyPi. Coming from a C and Java background, I love the ease of easy_install <whatever>. This is a new, wonderful world, but the model breaks down when I want to edit the newly installed module for two reasons: The egg files may be stored in a folder or archive somewhere crazy on the file system. Using an egg seems to preclude using the version control system of the originating project, just as using a debian package precludes development from an originating VCS repository. What is the best practice for installing modules from an arbitrary VCS repository? I want to be able to continue to import foomodule in other scripts.

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• Interactive pyDev console at breakpoint

  - by fest

  I'm using Aptana Studio with Pydev 1.5.3 to debug my Django applications. I use PyDev's remote debugger and some code in manage.py and for most of the time this setup is working successfully- I can set breakpoints, inspect variables and step/continue through my code. However, I'd like to execute arbitrary code at the breakpoint- the thing I really miss after switching from pdb to Eclipse debugging. There is an interactive console available in debug perspective but it is inactive for me. So my question- is it possible to set up an interactive console in PyDev with remote debugger which could "inject" code at breakpoint?

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