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  • UINavigationController shows blank view

    - by Adam8797
    I am making a simple navigation based application that drills down one level and show a new xib file each time. When I drill down one level my screen shows up blank. I still have the navigation controller at the top with a back button but my view dosent load. Here is my code - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { circle_area *subViewOneController = [[circle_area alloc] init]; UIViewController *tvc = subViewOneController; if (indexPath.row == 0 && indexPath.section == 0) { [[self navigationController] pushViewController:tvc animated:YES]; } } like I said this returns a blank screen.

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  • How do I get every nth row in a table, or how do I break up a subset of a table into sets or rows of

    - by Jherico
    I have a table of heterogeneous pieces of data identified by a primary key (ID) and a type identifier (TYPE_ID). I would like to be able to perform a query that returns me a set of ranges for a given type broken into even page sizes. For instance, if there are 10,000 records of type '1' and I specify a page size of 1000, I want 10 pairs of numbers back representing values I can use in a BETWEEN clause in subsequent queries to query the DB 1000 records at a time. My initial attempt was something like this select id, rownum from CONTENT_TABLE where type_id = ? and mod(rownum, ?) = 0 But this doesn't work.

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  • How do you tell git to permanently ignore changes in a file?

    - by Malvineous
    Hi all, I'm working with a git repository that's storing data for a website. It contains a .htaccess file, with some values that are suitable for the production server. In order for me to work on the site, I have to change some values in the file, but I never want to commit these changes or I will break the server. Since .gitignore doesn't work for tracked files, I was using "git update-index --assume-unchanged .htaccess" to ignore my changes in the file, however this only works until you switch branches. Once you change back to your original branch, your changes are lost. Is there some way of telling git to ignore changes in a file and leave it alone when changing branches? (Just as if the file was untracked.)

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  • Javascript function returning number with two decimals...?

    - by muzzledBYbrass
    I have a function to return points along a line and my return comes back with two decimal points...? For example, a return of my variable px will be something like -88.4029.032940598. vx is the x vector and mult is the distance of the line plus distance to calculate the point. Here is the operation that is returning these values: var mult = parseFloat(mag + theUnit); var px = coord_one.x_point + (vx * mult); console.log(px); Never have seen this before- I appreciate any and all help!

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  • Automating Firefox configuration settings

    - by Richard100
    Hi All, During web development work, I need to be able to quickly switch various config settings in Firefox. In particular I need to be able to: 1) Switch off cookies 2) Switch off javascript 3) Switch my user agent (I have the user-agent switcher add-on installed) and then back again. Instead of doing this manually, it would be great if i could add a "macro" button to my toolbar that I could simply click to toggle the three settings above. Anyone know if this is possible? Btw - Firefox Profiles doesn't really cut it. You can't dynamically switch profiles within a specific Firefox instance, which I need to be able to do. Btw2 - I got excited when i saw Greasemonkey, Chicken Foot, but it looks like these can only automate browsing/DOM tasks, and not with firefox configuration settings. Thanks Richard.

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  • Transform LINQ Dataset into a Matrix for export

    - by Mad Halfling
    Hi folks, I've got a data table with columns in which include Item, Category and Value (and others, but those are the only relevant ones for this problem) that I access via LINQ in a C# ASP.Net MVC app. I want to transform these into a matrix and output that as a CSV file to pull into Excel as matrix with the items down the side, the categories across the top and the values in the row cells. However, I don't know how many, or what, categories there will be in this table, nor will there always be a record for each item/category combination. I've written this by looping round, getting my "master category" list, then looking again for each item, filling in either blank or Value, depending on whether the item/category record exists, but as there are currently 27000 records in the table, this isn't as fast as I'd like. Is there a slicker and faster way I can do this, maybe via LINQ (firing into a quicker SQL statement so the DB server can do the leg-work), or will any method essentially come back to what I am doing? Thx MH

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  • Instantiating Java object with a passed in method

    - by superluminary
    It's been a few years since I've been heavily into Java. Coming back to it I'm seeing this pattern all over the place: ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() { public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { // do work } }); This looks more like Functional programming to me. It's a nice pattern but how is it possible to pass a method like this? In the old days a class was a class, and once compiled there was little you could do to it. My questions are: Can anyone let me know what this pattern is called? How can I write a class that can be instantiated in this way. Are there any other useful examples of functional patterns that have made their way into Java? What do I need to Google to read more about this? Thanks.

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  • How to prevent bad formatted data input in DataGridViewCell

    - by JuanNunez
    I have an automatically binded DataGridView that obtains data and update data directly from a Strongly Typed Dataset and its TableAdapter. the DataGridView allows data editing but I'm having issues dealing with bad formatted data input. For example, one of the columns is a date, formatted in the database as datetime, 11/05/2010. You can edit the date and the DataGridView opens a TextBox in wich you can enter letters, simbols and other unauthorised characters. When you finish editing the cell if has such bad data it throws a System.FormatException How can I prevent some data to be entered? Is there a way to "filter" that data before it is sent back to the DataGridView?

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  • Rails Application expecting me to restart my webrick server for any change in my controller.

    - by Vamsi
    I am working on an existing Rails 2.3.x application, So I was working on it and it was a messy code with great difficulty I was able to run the application. But now for every small change in one of my controller it is expecting me to restart my serer otherwise the changes are not reflecting back, Let's take an example scenario here, Let's just say in one of the before_filter method I just added a puts statement on top of the method and it was not printing in the log, after I restart the server it is printing, Can some one please let me know if I am missing something here.

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  • Do programmable Ethernet devices (think onboard CPU) really exist?

    - by PeterM
    I've heard from various people that programmable Ethernet cards exist and are easily available. However I have yet to be able to track down one of these mythical devices so I'm wondering if they're just that - a myth. Such a programmable card has a gigabit Ethernet interface, has a programmable CPU and connects to the host system via PCI Express. The problem area these cards address are low latency network applications where the card itself does the work and "reports back" to the operating system. Basically the card acts as a co-processor and handles all the low latency requirements on the card, thus avoiding the issues of writing low latency code in user-land - think 0.4ms - 0.5ms response times. So my question is, do these cards really exist and if so, where can I get my hands on one?

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  • Change highlighting of certain subviews in a UITableViewCell

    - by SpacyRicochet
    Is it possible to exclude certain subviews in a UITableViewCell from being highlighted or to change their highlight implementation? I added an orange warning label to the UITableViewCell for certain occassions and it highlights properly with the rest of the cell, which is good. However, when the cells stops being highlighted in an animated way, you first see the background of the warning label become white and then flash to orange. I would either like it to be excluded from being highlighted at all, or to change it's highlight implementation so it animates back to orange properly.

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  • jQuery - How do I make the menu fadeout when the user clicks anywhere else in the document besides the menu itself?

    - by GirlGoneMad
    Hi, I have a link that functions similar to a drop down menu in that it fades in a list of links below it when clicked. Currently, the list fades back out when the link is clicked again, but I'd like for it to also fade out if the user clicks elsewhere on the page. I'm not sure how to add the $(document).click(function()... that handles this, or if this is even the right approach. Here is my code: $('#show_button').click( function(){ if(!$('#list').is(':visible')){ var pos = $('#show_button').offset(); $('#list').css({'left':pos.left - 11, 'top': pos.top+14}).fadeIn(); } else{ $('#list').fadeOut(); } }); I am trying to add something like this to make the list fade out when the user clicks anywhere else in the page: if($('#list').is(':visible')){ $(document).click(function() { $('#list').fadeOut(); }); } Thanks in advance - I would appreciate any help on this one :)

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  • my output parameters are always null when i use BeginExecuteNonQuery

    - by CharlesO
    I have a stored procedure that returns a varchar(160) as an output parameter of a stored procedure. Everything works fine when i use ExecuteNonQuery, i always get back the expected value. However, once i switch to use BeginExecuteNonQuery, i get a null value for the output. I am using connString + "Asynchronous Processing=true;" in both cases. Sadly the BeginExecuteNonQuery is about 1.5 times faster in my case...but i really need the output parameter. Thanks!

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  • Access startup form locked GUI

    - by Brad
    I just had an interesting experience with a startup form in MS Access 2010. I designed a login form and when I thought I was done I set my startup form to be the login form I'd just created. I then closed Access and reopened it but my login form did not appear. Instead the whole GUI was locked. I cannot click on anything. My form was working during my tests before I set it as a startup form and reloaded Access. How can I either remove my form as a startup object or get the use of my GUI back?

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  • Elegantly Handle Repetitive Property Code in C#

    - by Eric J.
    The language shortcut public string Code { get; set; } saves a bit of typing when defining trivial properties in C#. However, I find myself writing highly repetitive, not-quite-as-trivial property code that still follows a clear pattern e.g. public string Code { get { return code; } set { if (code != value) { code = value; NotifyPropertyChanged("Code"); } } } I can certainly define a Visual Studio snippet to reduce typing. However, if I need to add something to my pattern, I have to go back and change quite a bit of existing code. Is there a more elegant approach? Is a snippet the best way to go?

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  • How to avoid Mercurial repo corruption when sharing a repository between Windows/Mac?

    - by Stabledog
    I have several projects which are shared between Windows and Mac. The dev machine is a Mac running Parallels: the files are stored on the Mac side, and the source is shared to the Windows side. This is very convenient, as I can switch back and forth between Windows and Mac tools rapidly without having to sync files. Recently I switched from Subversion to Mercurial, and now I'm having problems with the Mercurial repository becoming corrupt if I use the Windows tools to add/update, etc. I have to be very careful about which operations on the Windows side are safe (mainly the read-only stuff) and of course I forget rather regularly. Does anybody know why the corruption occurs? I thought Mercurial repositories were platform-agnostic. Any ideas how to prevent it without removing the Windows tools entirely?

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  • Using memcached/APC for session storage?

    - by Industrial
    Hi everybody, I had some thoughts back ago about using memcached for session storage, but came to the conclusion that it wouldn't be sufficient in the event of one or more of the servers in the memcached pool were about to go down. A hybrid version is to save the main database (mySQL) from load caused by reads would be to work out a function that tries to fetch the data from the cache pool, and if that fails gets it from the database. After putting some more thought into it, I started to think about using APC cache for session related data. If our web server would go down, sessions would be lost either way, so storing them in a local APC or a localhost memcached server maybe isn't that bad? What's your experiences?

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  • A lot to merge after creating a new branch in SVN

    - by homaxto
    We have recently made a new branch, let us call it rel3.6, which was based on the last release named rel3.5. Work has started on rel3.6, and meanwhile some bugs has been fixed on rel3.5 which now is used for a service pack to be released soon. Today I wanted to merge those bugs from rel3.5 to rel3.6, so I fired up SmartSVN. Standing in the rel3.6 branch i chosed\ to merge with rel3.5 and selected to browse for a revision range. To my surprise there was a huge list of changes even though I checked "Stop on copy" and only showing mergeable revisions. Most of them where dated back before the creation of rel3.6. I did not expect to find anything from before rel3.5 was created. If I make a merge, the only thing I get are changes and conflicts to directory properties. Have I misunderstood something, or is it possible that something was done wrong when creating the branch?

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  • Using ECF shared editing with Python

    - by hekevintran
    I can use the shared editing feature of ECF with Java fine perfectly fine. When I try to do it with Python files it also works, but there is no syntax highlighting. I installed PyDev to get syntax highlighting, but then the context menu does not have the "share editor" option. I removed PyDev and the option came back. I installed Dynamic Languages Toolkit in hopes that its Python syntax highlighting was compatible and I got the same effect (context menu lacks the "share editor" option). Is there a way to have a shared editing session with Python files and syntax highlighting?

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  • C++ for games

    - by Bi
    Hi I am a relatively newbie in C++ and worked in the game industry for a few months. I am looking to get back to the industry and understand that one needs to be a very good C++ programmer (mainly bcos of how competitive it is to get into making games). I was wondering if there are really good websites online that would help with that. Basically I am looking for something that would help me MASTER C++ concepts as well as help me be a good coder through programming examples that I can code. Thanks Bi

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  • SQL Server Compact Edition 3.5 performance

    - by Wili
    I am using SQL Server CE 3.5 SP1 in one of my client applications. When a user loads the program and starts using it, performance is fine. If the user lets the program sit idle for a while, it takes a considerable amount of time (10 or more seconds) for the program to respond. Every time the user asks for a new screen, a call is made to the SQL CE database to get the data for that screen. It seems like the hard drive may be going to sleep and then when the database is accessed, the hard drive has to wake back up. Is it possible to load the entire database into memory and work from that? Are there any other suggestions on how to increase performance?

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  • Design best practice - best way to handle user selection

    - by user1457227
    I'm an experienced developer (WPF) moving over to Android development. My question: an app I am developing allows the user to browse their local storage (such as SDCARD) and select a file. Now, should I simply create a new Activity (after the user has made a selection) to handle what I want to have the app do with that chosen file, -or- is the better approach to pass the path/name of the selected file back to the main Activity and let IT launch the next Activity? In other words, is the better practice to have the main Activity launch other (support) activities, or is it perfectly ok and normal to have one activity chain to another and on and on? Thanks!

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  • VBA - Prevent Excel 2007 from showing a defined names message box?

    - by John M
    I am working on a Excel 2007 workbook that will contain a macro to save the current sheet (a template) as a PDF file (no problem) a Excel 97-2003 file (problem) When saving the Excel file a messagebox appears asking about "Defined names of formulas in this workbook may display different values when they are recalculated...Do you want Excel to recalculate all formulas when this workbook is opened?". The user can then select Yes/No and then the file will save. How do I disable the messagebox from appearing? The default answer would be 'No'. My code for saving: Sub saveAs_97_2003_Workbook(tempFilePath As String, tempFileName As String) Dim Destwb As Workbook Dim SaveFormat As Long 'Remember the users setting SaveFormat = Application.DefaultSaveFormat 'Set it to the 97-2003 file format Application.DefaultSaveFormat = 56 ActiveSheet.Copy Set Destwb = ActiveWorkbook Destwb.CheckCompatibility = False With Destwb .SaveAs tempFilePath & tempFileName & ".xls", FileFormat:=56 .Close SaveChanges:=False End With 'Set DefaultSaveFormat back to the users setting Application.DefaultSaveFormat = SaveFormat End Sub

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  • Best way to get a date in .NET?

    - by frenchie
    I'm getting a string back from my page and I want to make sure it's a date. This is what I have so far (it works) and I just want to know if this is the "best" way to do it. I'm using .NET 4. int TheMonth =0; int TheDay = 0; int TheYear = 0; DateTime NewDate; var TheIncomingParam = Request.Params.Get("__EVENTARGUMENT").ToString(); char[] TheBreak = { '/' }; string[] TheOutput = TheIncomingParam.Split(TheBreak); try { TheMonth = Convert.ToInt32(TheOutput[0]); } catch { } try { TheDay = Convert.ToInt32(TheOutput[1]); } catch { } try { TheYear = Convert.ToInt32(TheOutput[2]); } catch { } if (TheMonth!=0 && TheDay!=0 && TheYear!=0) { try { NewDate = new DateTime(TheYear, TheMonth, TheDay); } catch { var NoDate = true; } }

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  • What approach should be suitable for user authentification in simle client/server app

    - by TerryS
    My previous question was closed so I will be more specific. I need to create an application, desktop one written in C#, that will ask for user credentials and after verification opens the GUI allowing to work with DB (black box for users). It should be used from everywhere, not LAN or SQL domain. I assume I would need to do the following: Create a client and a server applications that will deal with authentification. That would mean a lot of socketing stuff.. Once the user is verified, the client queries would be sent to database (client-server-DB). The server would need to send the DB data sets back to the client. As you can see, this is just my guess but I have no idea whether its too complicated or completely wrong. The main thing is that it must be desktop app (not web based one) and accessible from everywhere. I am interested in main points how to design the system and will be extremely grateful for that.

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