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• Absolutely positioned element inside fixed positioned element

  - by Salman A

  Related to my previous question, I have a <div style="position: fixed;"> footer. The footer contains <a style="display: block; float: left;"> elements. Upon clicking one of these links I want a div to popup above that link. I am experimenting with a couple of CSS settings and got acceptable results but I am not sure if my CSS will work across browsers. I am wondering if some one can tell me a bullet proof and tested CSS solution to achieve something like this:

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• How to get all rows but specifc columns from a DataTable?

  - by Oliver

  Currently i am having some problems with getting some data out of a DataTable by selecting all rows, but only some columns. To be a little more descriptive here is a little example: Sample Data | ID | FirstName | LastName | Age | +----+-----------+----------+-----+ | 1 | Alice | Wannabe | 22 | | 2 | Bob | Consumer | 27 | | 3 | Carol | Detector | 25 | What i have So what we got from our GUI is a IEnumerable<DataColumn> selectedColumns and there we'll find two elements (FirstName and LastName). Now i need some result which contains all rows, but only the above two columns (or any other list of selected columns). So far i already used LINQ on several one dimensional objects, but this two dimensional object gives me a little headache. // The hard-coded way Table.AsEnumerable().Select(row => new { FirstName = row[1], LastName = row[2] }); // The flexible way Table.AsEnumerable().Select(row => row ???) But how can i now say, which columns from row should be selected by using my selectedColumns?

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• InfoPath Repeating Group with Data from SharePoint and User Input

  - by 0x808080

  I have a series of questions which are pulled from a SharePoint list and loaded into a repeating section. The section has three elements, the Question # (from SharePoint), and Question itself (from SharePoint), and a drop down box Yes/No (NOT from SharePoint)... The repeating group portion works just fine, it is pulling all Question # and Questions from the SharePoint site, but I cannot bind the drop down box (yes/no) to any sort of local data source in order to record the information. Essentially what I have is a dynamically generated form which pulls questions off a SharePoint and a user will answer Yes or No for each question. I cannot associate the Yes/No drop down with anything because it resides within a Repeating section... Thanks for any help!

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• .NET SortedDictionary But Sorted By Values

  - by Michael Covelli

  I need a data structure that acts like a SortedDictionary<int, double> but is sorted based on the values rather than the keys. I need it to take about 1-2 microseconds to add and remove items when we have about 3000 items in the dictionary. My first thought was simply to switch the keys and values in my code. This very nearly works. I can add and remove elements in about 1.2 microseconds in my testing by doing this. But the keys have to be unique in a SortedDictionary so that means that values in my inverse dictionary would have to be unique. And there are some cases where they may not be. Any ideas of something in the .NET libraries already that would work for me?

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• HTML Slider element?

  - by Claudiu

  I'm coding an app (temporarily up here), and I want to make its parameters modifiable. I feel the best way to do this would be with your standard GUI slider elements (a la this, but not so ugly). I just noticed that the DOM doesn't provide these, however... What's the best way to introduce sliders to a webpage? Is there a standard library that everybody uses? Should I just roll my own? Or should is there a different element I can use? Should I embed them in the canvas element somehow?

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• 100% width bg images not extending on horizontal scroll

  - by Fuego DeBassi

  I'm noticing this issue. I made a quick screen capture to demonstrate: http://dl.dropbox.com/u/904456/2010-06-14_2323.swf Basically when you have a min-width set and the viewport goes under that constraint, a horizontal scroll bar appears. Pretty much what you would expect, but when you scroll over horizontally all elements that are suppose to extend across the entire width of the page and have background images/colors different from the body do not extend. If you resize the viewport it seems to catch up. Is this a known issue? You can see it on a lot of sites, http://gowalla.com for example. Any ideas?

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• WCSF vs MEF, What's Best For Me?

  - by Galilyou

  Hey fellows, I'm working on a large web application that includes many modules (CRM, Inventory, Administration, etc.) What I want to accomplish is to be able develop each of these modules independently (the UI, Core Logic, DataAccess Logic, and all) and then integrate them all together into a core module (this integration should only be a change in the configuration file). For example, if I have a core module named Host, I should be able to add the CRM module to the host module by simply adding this line to the host's configuration file: <module name="CRM" /> I did some reading on the WCSF, and found that it can help integrate some modules together, but it really doesn't offer so much help in terms of integrating those UI elements. Some friends suggested MEF for the job, but I haven't looked at that yet. What do you guys think? Is it possible to achieve this level of modularity, and how much work do I have to put into it to get it working?

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• Should I Prefer a Closed or Open List<> System?

  - by Tyler Murry

  Hey guys, I've got a class in my project that stores a List< of elements. I'm trying to figure out whether I should allow the user to add to that List directly (e.g. Calling the native add/remove methods) or lock it down by declaring the List private and only allowing a handful of methods I choose to actually alter the List. It's a framework, so I'm trying to design it as robustly as possible, but I also want to keep it as simple and error-free as possible. What's the best practice in this situation? Thanks, Tyler

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• How to hold three different text alignments in one CSS Box ?

  - by UXdesigner

  Good day, I've got a simple CSS question. I'm trying to change a table into a CSS box, but aligning the table content is difficult to me right now. Below there's an example of what's inside of the css box i created. How can I align these three elements (calendar and icon to the left , a text link to the center, and the other date field to the right ?) correctly ? I've tried several things but the problem is getting it aligned properly. I want to change everything in this application that has been created with tables, to css. And I've been an 80% succesful so far. I'd like to see some easy to understand code, to see how I can apply it on my code. Thank you for your kind help. I might be burned out due to stress. [Calendar (icon) Link Date]

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• Unexpected JAXB error

  - by Mark Lewis

  Hello, From the documentation it's clear I need to use the following to get a simple unmarshalling to occur from my XML file/schema: JAXBContext jc = JAXBContext.newInstance("PackageName"); where PackageName is my package name. I've looked on google for a bit to no avail, to find out why I'm then getting this runtime error: Line:Col[2:142]:cvc-elt.1: Cannot find the declaration of element 'myconfig'. Line:Col[2:142]:unexpected element (uri:"http://www.w3.org", local:"myconfig"). Expected elements are <{}myconfig> Caught UnmarshalException This occurs at the top of all my class files, including the ones the XJC plugin for eclipse created for me (which I then moved out of PackageName.PackageName which it automatically created): package PackageName; so why is this error occurring?

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• Select on multiple criteria with XPath

  - by Matt Thrower

  I have an XML document which looks something like this: <meadinkent> <record> <comp_div>MENSWEAR</comp_div> <sty_ret_type>ACCESSORIES</sty_ret_type> <sty_pdt_type>BELTS</sty_pdt_type> <pdt_category>AWESOME_BELTS</pdt_category> </record> <medinkent> I want to useXPath to select nodes which match all four elements and I'm having trouble getting the boolean syntax right. I'm trying this to match the first two just as a test: "/meadinkent/record/comp_div[.='" & comp_div & "'] and /meadinkent/record/sty_ret_type[.='" & sty_ret_type & "']" Which is failing, saying no nodes are returned. Obviously I'm being very stupid - what am I doing wrong? Cheers, mAtt

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• How does Linq-to-Xml convert objects to strings?

  - by Eamon Nerbonne

  Linq-to-Xml contains lots of methods that allow you to add arbitrary objects to an xml tree. These objects are converted to strings by some means, but I can't seem to find the specification of how this occurs. The conversion I'm referring to is mentioned (but not specified) in MSDN. I happen to need this for javascript interop, but that doesn't much matter to the question. Linq to Xml isn't just calling .ToString(). Firstly, it'll accept null elements, and secondly, it's doing things no .ToString() implementation does: For example: new XElement("elem",true).ToString() == "<elem>true</elem>" //but... true.ToString() == "True" //IIRC, this is culture invariant, but in any case... true.ToString(CultureInfo.InvariantCulture) == "True" Other basic data types are similarly specially treated. So, does anybody know what it's doing and where that's described?

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• OpenGL Shading Language backwards compatibility

  - by Luca

  I've noticed that my GLSL shaders are not compilable when the GLSL version is lower than 130. What are the most critical elements for having a backward compatible shader source? I don't want to have a full backward compatibility, but I'd like to understand the main guidelines for having simple (forward compatible) shaders running on GPU with GLSL lower than 130. Of course the problem could be solved with the preprocessor #if __VERSION__ < 130 #define VERTEX_IN attribute #else #define VERTER_IN in #endif But there probably many issues that I ignore. Thank you

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• Creating custom contact page -- page-contact.tpl.php (Drupal)

  - by jc70

  I'm new to Drupal. I want to create a contact page, so I copied page.tpl.php and renamed it to page-contact.tpl.php. I created some new elements in the page, so I can see that if I click on the "contact" link, I'll know that I went to the correct page. Right now I don't see any change. Was there something I missed? Do I need to do something in the admin settings so Drupal knows which file I need to open? I also tried clearing my cache.

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• CSS selector for grouped iterations

  - by snaken

  Hi, I have a number of elements that i want to loop through as groups. Consider this HTML: <input class="matching match-1" /> <input class="matching match-1" /> <input class="matching match-2" /> <input class="matching match-2" /> <input class="matching match-2" /> <input class="matching match-3" /> <input class="matching match-3" /> // etc I want a CSS selector that would allow me to loop through these as groups so there would be - using this example - 3 iterations of the loop (one for match-1, one for match-2 and one for match-3). The 1,2,3 etc is a variable used for grouping but this is not fixed so it cannot rely on hard coding of these values. Is this even possible? I'll be using jQuery or prototype not that that should matter really. Thanks

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• LabVIEW: converting numeric array to string array

  - by JaysonFix

  Using LabVIEW 2009, I have a VI that outputs an array of U64 integers. I'd like the user to be able to perform discrete selection from among the elements of this array. I'm thinking of accomplishing this by programmatically populating a Menu Ring (as shown at http://digital.ni.com/public.nsf/allkb/FB0409491FAB16FA86256D08004FCE7E). However, I apparently need to convert my array of U64 ints to an array of strings, as it is an array of strings that is used to populate the Menu Ring. My question: how can I convert the array of U64 ints to an array of strings?

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• store/load numpy array from binary files

  - by Javier

  Dear all, I would like to store and load numpy arrays from binary files. For that purposes, I created two small functions. Each binary file should contain the dimensionality of the given matrix. def saveArrayToFile(data, fileName): with open(fileName, 'w') as file: a = array.array('f') nSamples, ndim = data.shape a.extend([nSamples, ndim]) # write number of elements and dimensions a.fromstring(data.tostring()) a.tofile(file) def readArrayFromFile(fileName): _featDesc = np.fromfile(fileName, 'f') _ndesc = int(_featDesc[0]) _ndim = int(_featDesc[1]) _featDesc = _featDesc[2:] _featDesc = _featDesc.reshape([_ndesc, _ndim]) return _featDesc, _ndesc, _ndim An example on how to use the functions is: myarr=np.array([[7, 4],[3, 9],[1, 3]]) saveArrayToFile(myarr,'myfile.txt') _featDesc, _ndesc, _ndim = readArrayFromFile('myfile.txt') However, an error message of 'ValueError: total size of new array must be unchanged' is shown. My arrays can be of size MxN and MxM. Any suggestions are more than welcomed. I think the problem might be in the saveArrayToFile function. Best wishes, Javier

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• Algorithm to fill slots

  - by Peter Lang

  I am searching for an algorithm to fill several slots, which are already filled to some level. The current levels and the available quantity to fill are known Resulting levels should be as equal as possible, but existing level cannot be reduced Slots are filled from left to right, so left slots get higher level if equal level is impossible       The image above shows six examples, each column represents a slot. The grey area is already filled, the blue are is the expected position of the new elements. I could iterate through my slots and increase the quantity on the lowest slot by 1 until the available quantity is consumed, but I wonder about how to actually calculate the new filling levels. I am going to implement this with SQL/PL/SQL, other code is just as welcome though :)

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• HTML/CSS layout question

  - by TheDelChop

  Guys, I just need a little help with some CSS layout if you don't mind. I've got three things I'm trying to play around with and I need some help making this work the way I was hoping. I've got the element of a page, which I'd like to be 100% of the browser window, obviously. Then I've got two elements which I'd like to stack on top of each other, but the trick is this, I'd like the bottom div, (a menu which should really be a fixed height) to determine the height of the top div. Is there a way to lay this out in CSS?

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• Rake don't know how to build task?

  - by Schroedinger

  Using a rake task to import data into a database: file as follows namespace :db do desc "load imported data from csv" task :load_csv_data => :environment do require 'fastercsv' require 'chronic' FasterCSV.foreach("input.csv", :headers => true) do |row| Trade.create( :name => row[0], :type => row[4], :price => row[6].to_f, :volume => row[7].to_i, :bidprice => row[10].to_f, :bidsize => row[11].to_i, :askprice => row[14].to_f, :asksize => row[15].to_i ) end end end When attempting to use this, with the right CSV files and the other elements in place, it will say Don't know how to build task 'db:import_csv_data' I know this structure works because I've tested it, I'm just trying to get it to convert to the new values on the fly. Suggestions?

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• How do I render the scrollable regions of a canvas with IViewObject::Draw?

  - by nirvdrum

  Hi, I've been trying to render the entire canvas in an IWebBrowser2 control to a bitmap. IViewObject::Draw seems to be the most promising approach, but I can't get it to render anything that would requires a scroll to show. While I could automate the scrolling and stitch the images together, this would look weird with any fixed position elements. Is this even doable? Additionally, I've tried to set the controller's size to one that would allow the entire contents to display without needing to scroll, but Windows caps the max size to the current screen resolution, so that only gets me partially there. Any help would be much appreciated. I'm currently doing this in the context of Win7 and IE8, but I don't think that should matter much.

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• getSelection & surroundContents across multiple tags

  - by lethalbody

  Hi, I've got a script that changes the background colour of text that has been selected. However i'm encountering an issue when the text is selected across multiple elements/tags. The code that i've got is: var text = window.getSelection().getRangeAt(0); var colour = document.createElement("hlight"); colour.style.backgroundColor = "Yellow"; text.surroundContents(colour); And the error being output is: Error: The boundary-points of a range does not meet specific requirements. = NS_ERROR_DOM_RANGE_BAD_BOUNDARYPOINTS_ERR Line: 7 I believe this is to do with the getRange() function though i'm not too sure how to proceed since I am a beginner at javascript. Is there any other way I can replicate what I am trying to achieve? Many thanks.

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• nested sortable table rows jquery

  - by FLY

  Hi, I am trying to sort rows of a table, and put them as 'child' elements of a table row I found this: http://code.google.com/p/nestedsortables/ this works with ul li lists, but i want to build it for a table. <table> <thead> <th>tablehead</th> </thead> <tbody> <tr><td>somevalue</td></tr> <tr><td>somevalue2</td></tr> </tbody> </table> so yeah you can use jquery.sortable() and sort the rows, but i want 'somevalue' to be become a child element of 'somevalue2' if you drag 'somevalue' over 'somevalue2' I don't know if it is posible with a table. can anyone help me? Thnx!

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• jQuery: Simple menu

  - by JamesBrownIsDead

  I'm trying to learn jQuery by implementing a simple menu. I've got <div> elements that act as buttons and have links in them. I'm trying to add onclick events to the divs that navigate the browser to the link's address in the div. This is basically my pseudo-code. What would the real code be? How can I improve this? Any feedback appreciated! // Iterate over each menu button $('.masterHeaderMenuButton').each(function () { // Get the link in each button and set the button's onclick to // redirect to the link's address var url = $('a', this).attr('href'); this.click(function () { window.location.href = url; }); // If the user is on the page for the current button, hilight it if (window.location.href === url) { $('a', this).addClass("masterHeaderMenuButtonSelected"); } });

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• Is there any performance difference between Debug and Release?

  - by Lazlo

  I'm using MySql Connector .NET to load an account and transfer it to the client. This operation is rather intensive, considering the child elements of the account to load. In Debug mode, it takes, at most, 1 second to load the account. The average would be 500ms. In Release mode, it takes from 1 to 4 seconds to load the account. The average would be 1500ms. Since there is no #if DEBUG directive or the like in my code, I'm wondering where the difference is coming from. Is there a project build option I could change? Or does it have to do with MySql Connector .NET that would have different behaviors depending on the build mode?

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