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  • Spring.NET and ADO.NET Entity Data Model

    - by Jason
    Having defined an ADO.NET Entity Data Model, I can then instantiate it in a Repository class to query against the database. using (ApplicationEntities ctx = new ApplicationEntities()) { // query, CRUD, etc } However, that particular line of code becomes boilerplate in most of the methods in the repository class. Is it possible to just use Spring.NET to inject the Entity Data Model, either in the class or, even better, in an abstract parent class that all the repositories inherit from?

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  • Calculations in a table of data

    - by Christian W
    I have a table of data with survey results, and I want to do certain calculations on this data. The datastructure is somewhat like this: ____________________________________________________________________________________ | group |individual | key | key | key | | | |subkey|subkey|subkey|subkey|subkey|subkey|subkey|subkey|subkey| | | |q|q|q |q |q |q|q|q |q|q|q |q |q |q|q|q |q|q|q |q |q |q|q|q | |-------|-----------|-|-|--|--|---|-|-|--|-|-|--|--|---|-|-|--|-|-|--|--|---|-|-|--| | 1 | 0001 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | | 1 | 0002 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | | 1 | 0003 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | | 2 | 0004 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | | 2 | 0005 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | | 3 | 0006 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | | 4 | 0007 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 |1|7|5 |1 |3 |1|4|1 | ------------------------------------------------------------------------------------ Excuse my poor ascii skills... So, every individual belongs to a group, and has answered some questions. These questions are always grouped in keys and subkeys. Is there any simple method to calculate averages, deviations and similar based on the groupings. Something like public float getAverage(int key, int individual); float avg = getAverage(5,7); I think what I'm asking is what would be the best way to structure the data in C# to make it as easy as possible to work with? I have started making classes for every entity, but I got confused somewhere and something stopped working. So before I continue along this path, I was wondering if there are any other, better, ways of doing this? (Every individual can also have describing variables, like agegroup and such, but that's not important for the base functionality.) Our current solution does all calculations inline in the queries when requesting the data from the database. This works, but it's slow and the number of queries equals questions * individuals + keys * individuals, which could be alot if individual queries. Any suggestions?

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  • Multiple views and source list in a Core Data app

    - by Ellie P.
    I'm working on my first major Cocoa app for an undergraduate research project. The application is document-based and uses Core Data. One of the entities is an abstract entity, Page. Page is parent of several types of pages: ie PageWithHeaderAndFooter, PageWithTwoColumns, BasicPage etc. Page has attributes, such as title and author, that all pages have in common. Each specific type of page has a certain number of layout blocks (PageWithHeaderAndFooter has three: header, footer, body. BasicPage has one: body. etc.) Additionally, all Page subclasses define layout-specific implementations of certain methods. The other relevant entity is Style, which defines the visual look of a Page. (Think of Pages as HTML and Style as CSS.) I would like my app to have an iTunes/Mail-like source list with sections. (One section would be Pages, the other would be Styles.) I have a pretty good idea how to do the sectioned source list (this was a great help). However, after hours of headbanging and fruitless googling, here's what I can't figure out: Pages and Styles listed in the source list, and when you select one of them, all of the relevant fields for that object appear at the right (mostly NSTextViews, pop up menus, etc). I laid that out and did all of the bindings in Interface Builder. The problem is, if my source list contains different types of pages, how do I get a different view to display at the right depending on the type of page selected? For example, if a BasicPage is selected, I want just what you see above: the general page stuff and one NSTextView that corresponds to the one field body of BasicPage. But if I select a PageWithHeaderAndFooter, I want to display the general page stuff plus three NSTextViews (one for header, body, and footer.) If I have a Style selected, I want to display various pop up menus, color wells, etc. For the pages at least, we're only talking about one or more NSTextViews, each of which corresponds to a String attribute of the respective entity. How would you do this? Thank you for your help!

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  • C# : Filtering data of data table using select method

    - by Royson
    I have data table containing one column as FilePath. FilePath D:\New folder\link.txt D:\New folder\SharepointMigration(Work Schedule).xls D:\New folder\my2\link.txt D:\New folder\my2\SharepointMigration(Work Schedule).xls D:\New folder\my2\my3\New Text Document.txt D:\New folder\Try.txt I am filtering my data table by DataRow[] dtRow = dataTable_FilesWithMetaData.Select("FilePath Like '" + sourcePath + "%'"); But it gives me all files and subfolder files. But i want only files not subfolders. How to write such type of filter expression..??

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  • Data Mining project ideas?

    - by Andriyev
    Hi I am looking for project ideas in the field of data mining. I expect to complete it in a quarter and intend to use C++, Linux as the environment. The course I'm taking aims to build the basics of data mining and covers topics like Classification, Regression-Modeling, Clustering and Association learning. Please point me to some good ideas which I can chew on. cheers

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  • SQL Server, varchar data to nvarchar data

    - by Øyvind
    I've got a database with collation Danish_Norwegian_CS_AS and lots of varchar columns. I'd like to convert all this data to unicode, but haven't found a way to convert this data yet. If I've understood correctly, the encoding used is UCS-2 little endian. For example I've got a column containing 'PÃ¥l-Trygve' which is easily converted with C# to 'Pål-Trygve' using Encoding.Default.GetString(Encoding.UTF8.GetBytes("PÃ¥l-Trygve")); Is there a way to do this conversion in the Microsoft SQL Server client?

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  • [Python] - Getting data from external program

    - by Kenny M.
    Hey, I need a method to get the data from an external editor. def _get_content(): from subprocess import call file = open(file, "w").write(some_name) call(editor + " " + file, shell=True) file.close() file = open(file) x = file.readlines() [snip] I personally think this is a very ugly way. You see I need to interact with an external editor and get the data. Do you know any better approaches/have better ideas?

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  • Great data mining quotes

    - by Andrei Savu
    I'm searching some data mining related quotes. Can you tell me some of the quotes you like? On the internet I have only found this site: http://www.quotesea.com/quotes/with/data%20mining Thanks.

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  • C error conflicting types

    - by ambika
    i have following error error : conflicting types for 'sprintf' error : conflicting types for 'vsprintf' error : conflicting types for 'vprintf' error : conflicting types for 'select' in my header file, the code is extern char *sprintf(char*,const char*,... )

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  • Auto convert java source to use generic rather than raw types

    - by Sam
    Is there a way/tool to auto convert Java source code from using raw types to using generic types? I have some legacy code with 677 references to raw types: ArrayList 47 Vector 420 Hashtable 61 Enumeration 64 Class 7 Iterator 78 TOTAL 677 Now I could manually look through the code to infer the generic types and replace, but that is going to take a long time.

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  • svg data visualizations

    - by garymlewis
    I'd like to experiment with SVG as a way of displaying data-driven graphs, charts, etc. The data exists as xml, and I'll use XQuery to produce the xml. What options (eg, graphics libraries) should I consider for creating the SVG from the xml? Many thanks.

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  • Data-Virtualization problem with SurfaceScrollViewer

    - by TWith2Sugars
    I'm in a situation where I'm using an ItemsControl with a SurfaceScrollViewer bound to an AsyncVirtualizingCollection and all of the data is being requested. I'm aware that it's due to the ItemsControl request all of the data but I'm not sure how to get around this. I've tried the AsyncVirtualizingCollection bound to a ListBox and it works fine and I'm now attempting to having it bound to a SurfaceListBox but the problem persists. Any ideas of how to overcome this? Thanks & Regards Tony

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  • Best Practices for Exchanging data between Desktop and Web Application

    - by Amitd
    Hi, I have to pass information from a desktop application to Web application and vice versa. What are the best practices that are regularly used? Currrently I'm using Asp.Net and a Winform. To pass data to Web Site im creating a (POST) WebRequest and posting an xml to the site. To pass data to Application im using .Net Remoting from Asp.net (Winform is an adminstration and monitoring application) Also currently both Web app and Winform are on the same machine.(but can change).

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  • which iphone data model to choose?

    - by Tronic
    i need to get some data somewhere to put in a timeline. the data strcture is like this: - Item - Name - Year - ShortInfo (mainly keywords and short texts) - LongInfo (much text with videos/audios (urls) a friend of mine told me i should you a plist and get all that stuff in there, but what about a sqlite database? any advice? regards

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  • C# SQL Data Adapter System.Data.StrongTypingException

    - by René
    I get my data from SQL to Dataset with Fill. It's just one table with two columns (CategoryId (int) and CategoryName (varchar)). When I look at my dataset after fill method, CategoryId Columns seems to be correct. But in the CategoryName I have a *System.Data.StrongTypingExceptio*n. What could that mean? Any Ideas?

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  • MSSQL, varchar data to nvarchar data

    - by Øyvind
    I've got a database with collation Danish_Norwegian_CS_AS and lots of varchar columns. I'd like to convert all this data to unicode, but haven't found a way to convert this data yet. If I've understood correctly, the encoding used is UCS-2 little endian. For example I've got a column containing 'PÃ¥l-Trygve' which is easily converted with C# to 'Pål-Trygve' using Encoding.Default.GetString(Encoding.UTF8.GetBytes("PÃ¥l-Trygve")); Is there a way to do this conversion in the microsoft SQL client?

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  • WPF DataGrid bind data between columns

    - by Markus2k
    Lets say I have 2 columns in my data Grid: Column A: Selected, and Column B: Name. The Selected column is a checkbox. And Name column is text field. I want to set the color of the text in 'Name' column as Blue if Column A's check box is checked, and Red otherwise. Essentially I don't know how to bind data between columns of the datagrid. And sample code/link providing example would be useful.

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  • reset the data in the table of data set in c#.net

    - by shruti
    im populating the data in the combo box using dataset tables...with some table name..now i want to clear those entries or data populated in the combobox every time when the button is clicked...so that new entries can be done.... is there any way to clear the comobo box values??

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  • Reading numeric Date value from CSV file to data.frame in "R"

    - by Dick Eshelman
    D <- read.csv("sample1.csv", header = FALSE, sep = ",") D V1 V2 V3 V4 1 20100316 109825 352120 239065 2 20100317 108625 352020 239000 3 20100318 109125 352324 241065 D[,1] [1] 20100316 20100317 20100318 In the above example how do I get the data in D[,1] to be read, and stored as date values: 2010-03-16, 2010-03-17, 2010-03-18 ? I have lots of data files in this format. TIA,

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