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  • Is there a more easy way to create a WCF/OData Data Service Query Provider?

    - by routeNpingme
    I have a simple little data model resembling the following: InventoryContext { IEnumerable<Computer> GetComputers() IEnumerable<Printer> GetPrinters() } Computer { public string ComputerName { get; set; } public string Location { get; set; } } Printer { public string PrinterName { get; set; } public string Location { get; set; } } The results come from a non-SQL source, so this data does not come from Entity Framework connected up to a database. Now I want to expose the data through a WCF OData service. The only way I've found to do that thus far is creating my own Data Service Query Provider, per this blog tutorial: http://blogs.msdn.com/alexj/archive/2010/01/04/creating-a-data-service-provider-part-1-intro.aspx ... which is great, but seems like a pretty involved undertaking. The code for the provider would be 4 times longer than my whole data model to generate all of the resource sets and property definitions. Is there something like a generic provider in between Entity Framework and writing your own data source from zero? Maybe some way to build an object data source or something, so that the magical WCF unicorns can pick up my data and ride off into the sunset without having to explicitly code the provider?

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  • Dinamically creating a member ID card as pdf using PHP?

    - by aefxx
    I need to code a PHP script that would let me generate a pdf file which displays a member ID card (something like a credit card used to identify oneself) at a certain resolution. Let me explain: I do have the basic blueprint of the card in png file format. The script needs to drop in a member's name and birth day along with a serial. So far, no problem - there are plenty of good working PHP librarys out there. My problem is to ensure that the resulting pdf (the generated image of the card, to be precise) meets a certain resolution (preferably 300dpi), so that printing it would look right. Any ideas? EDIT I solved it using the TCPDF library which let's you scale images at a certain resolution. Get it here: http://www.tecnick.com/public/code/cp_dpage.php?aiocp_dp=tcpdf

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  • Using fscanf with dynamically allocated buffer.

    - by ryyst
    Hi, I got the following code: char buffer[2047]; int charsRead; do { if(fscanf(file, "%2047[^\n]%n%*c", buffer, &charsRead) == 1) { // Do something } } while (charsRead == 2047); I wanted to convert this code to use dynamically allocated variables so that when calling this code often I won't get heavy memory leakage. Thus, I tried this: char *buffer = malloc(sizeof(char) * 2047); int *charsRead = malloc(sizeof(int)); do { if(fscanf(file, "%2047[^\n]%n%*c", *buffer, charsRead) == 1) { // Do something } } while (*charsRead == 2047); Unfortunately, this does not work. I always get “EXC_BAD_ACCESS” errors, just before the if-statement with the fscanf call. What am I doing wrong? Thanks for any help! -- Ry

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  • My method is being recognized within my own program. Newbie mistake probably.

    - by Sergio Tapia
    Here's my code: sentenceToTranslate = raw_input("Please write in the sentence you want to translate: ") words = sentenceToTranslate.split(" ") for word in words: if isVowel(word[0]): print "TEST" def isVowel(letter): if letter.lower() == "a" or letter.lower() == "e" or letter.lower() == "i" or letter.lower() == "o" or letter.lower() == "u": return True else: return False The error I get is: NameError: name 'isVowel' is not defined What am I doing wrong?

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  • Append a dynamically changing watermark to a PDF in SharePoint

    - by ccomet
    This is primarily a question of possibilities more than instructions. I'm a programming consultant working on a WSS project site system for my client. We have a document library in which files are uploaded to go through a complex approval process. With multiple stages in this process, we have an extra field which dictates what the current status of the document is. Now, my client has become enamored with the idea of PDF watermarking. He wants the document (which is already a PDF) to be affixed with a watermark corresponding to the current status, such that with each stage of the approval process the watermark will change. One method, the traditional method for PDF watermarking, of accomplishing this is to have one "clean" copy of the document somewhere hidden on the site, and create a new PDF from it that has the watermark at each stage of the approval process. Since the filename will never change, this new PDF can be uploaded continually to a public library, always overwriting the old version and simulating a "dynamically changing watermark". However, in the various stages there will also be people uploading clean copies with corrections and suggestions, nevermind the complex nature of juggling around two libraries and the fact we double the number of files stored. My client and I agree that this is not a practical path to choose. What we would like to do is be able to "modify" the watermark in a PDF, so that we only have to keep one copy of the file. Unfortunately, from what I've seen, in most cases when you make something like a watermark, which in its nature is supposed to be "unmodifyable", you won't be able to edit it later. So, is it possible to have a part of a PDF which cannot be changed by anyone who downloads the file, but can be changed as part of a workflow or other object model process? Thanks in advance!

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  • PHP preg_replace function returns different values with the same data set

    - by patryk
    I need to use preg_match PHP function. I have a simple pattern to check the string and the thing is as follows: when I run the script at first, it gives me no match (it is supposed to match though) but when I hold F5 in my browser for a while, out of a sudden it says there's a match within the string. As I keep pushing F5, it gives either true or false. Say the pattern is /^(.*)\/[A-Za-z0-9]*$/ (I guess it's not the best way but still) and the subject is galeria/zdjecia/. I believe preg_match should return true with this set of data. Note that the data does not change when pressing F5. Why is that?

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  • Sudoku solver evaluation function

    - by Rich
    Hi, So I'm trying to write a simple genetic algorithm for solving a sudoku (not the most efficient way, I know, but it's just to practice evolutionary algorithms). I'm having some problems coming up with an efficient evaluation function to test if the puzzle is solved or not and how many errors there are. My first instinct would be to check if each row and column of the matrix (doing it in octave, which is similar to matlab) have unique elements by ordering them, checking for duplicates and then putting them back the way they were, which seems long winded. Any thoughts? Sorry if this has been asked before...

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  • Static Evaluation Function for Checkers

    - by Kamikaze
    Hi all! I'm trying to write an evaluation function for a game of checkers that I'm developing but I can't find the right documentation. I've read several documents on the web witch describe different techniques for either writing one or letting the computer find it(using genetic algorithms or Bayesian learning) but they're too complicated for a novice like me. All documents pointed a reference to "Some studies in machine learning using the game of checkers" by A.L.Samuel but I couldn't get my hands on it yet :(. I've only read the follow up "Some studies in machine learning using the game of checkers -II" and found some good info there, but it doesn't explain what the eval parameters mean (I think I don't have the whole article). Thanks for your help!

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  • excel formula problem

    - by Santosh
    Kindly check the below written formula, if the formula is not correct then please provide me the correct one that is related to this. IF(A1:AV7000=F1,vlookup(f2,B1:C7000,2,0),0) As I have tried above written formulas, but it's not working.

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  • Pinvoke- to call a function with pointer to pointer to pointer parameter

    - by jambodev
    complete newbe in PInvoke. I have a function in C with this signature: int addPos(int init_array_size, int *cnt, int *array_size, PosT ***posArray, PosT ***hPtr, char *id, char *record_id, int num, char *code, char *type, char *name, char *method, char *cont1, char *cont2, char *cont_type, char *date1, char *date_day, char *date2, char *dsp, char *curr, char *contra_acc, char *np, char *ten, char *dsp2, char *covered, char *cont_subtype, char *Xcode, double strike, int version, double t_price, double long, double short, double scale, double exrcised_price, char *infoMsg); and here is how PosT looks like: typedef union pu { struct dpos d; struct epo e; struct bpos b; struct spos c; } PosT ; my questions are: 1- do I need to define a class in CSharp representing PosT? 2- how do I pass PosT ***posArray parameter across frm CSharp to C? 3- How do I specify marshaling for it all? I Do appreciate your help

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  • Reference app relative virtual paths in .css file

    - by bravo9
    Assume I have an "images" folder directory under the root of my application. How can I, from within a .css file, reference an image in this directory using an ASP.NET app relative path. Example: When in development, the path of ~/Images/Test.gif might resolve to /MyApp/Images/Test.gif while, in production, it might resolve to /Images/Test.gif (depending on the virtual directory for the application). I, obviously, want to avoid having to modify the .css file between environments. I know you can use Page.ResolveClientUrl to inject a url into a control's Style collection dynamically at render time. I would like to avoid doing this.

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  • What is happening in this T-SQL code?

    - by Ben McCormack
    I'm just starting to learn T-SQL and could use some help in understanding what's going on in a particular block of code. I modified some code in an answer I received in a previous question, and here is the code in question: DECLARE @column_list AS varchar(max) SELECT @column_list = COALESCE(@column_list, ',') + 'SUM(Case When Sku2=' + CONVERT(varchar, Sku2) + ' Then Quantity Else 0 End) As [' + CONVERT(varchar, Sku2) + ' - ' + Convert(varchar,Description) +'],' FROM OrderDetailDeliveryReview Inner Join InvMast on SKU2 = SKU and LocationTypeID=4 GROUP BY Sku2 , Description ORDER BY Sku2 Set @column_list = Left(@column_list,Len(@column_list)-1) Select @column_list ---------------------------------------- 1 row is returned: ,SUM(Case When Sku2=157 Then Quantity Else 0 End) As [157 -..., SUM(Case ... The T-SQL code does exactly what I want, which is to make a single result based on the results of a query, which will then be used in another query. However, I can't figure out how the SELECT @column_list =... statement is putting multiple values into a single string of characters by being inside a SELECT statement. Without the assignment to @column_list, the SELECT statement would simply return multiple rows. How is it that by having the variable within the SELECT statement that the results get "flattened" down into one value? How should I read this T-SQL to properly understand what's going on?

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  • encryption decryption function in php

    - by parthav
    import gnupg, urllib retk = urllib.urlopen("http://keyserver.pramberger.at/pks/" "lookup?op=get&search=userid for the key is required") pub_key = retk.read() #print pub_key gpg = gnupg.GPG(gnupghome="/tmp/foldername", verbose=True) print "Import the Key :", gpg.import_keys(pub_key).summary() print "Encrypt the Message:" msg = "Hellllllllllo" uid = "userid that has the key on public key server" enc = gpg.encrypt(msg, uid,always_trust=True) print "*The enc content***************************== ", enc this function written in python gives me encrypted message.The encryption is done using the public key which i am getting from public key server(pramberger.at). Now how can i implement the same functionality (getting the key from any public key server and using that key encrypt the message) in php

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  • Embedding Ruby, calling a function from C

    - by ThePower
    Hi, I'm writing an app that calls ruby code from c. I am having a little difficulty and wondered if anyone could point me in the rite direction. I currently have in my C. #include ruby.h main() { ruby_init(); rb_require("myRubyFile"); rb_funcall(rb_module_new(), rb_intern("RubyFunction"), 0, NULL); } My ruby file is in the same directory as my c file and is called myRubyFile.rb and contains a definition of the function RubyFunction(). This is a cut down of what I actually want to do, just making it more readable for others. I just require some feedback as to whether this is the correct method to call ruby code from my c file. Regards

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  • error CS0133: Assigning the result of a function to a const in C#.net

    - by Greg
    Trying to tidy up scope and avoid possible multiple calls to RegisterWindowMessage. Currently have a class used once with the following member [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] static extern int RegisterWindowMessage(string lpString); private int m_message = RegisterWindowMessage("MY_MSG"); As we only have one instance this seems ok, but think it would be more tidy to use. With my basic C# understanding this should call RegisterWindowMessage and assign the result to int and not allow it to change. private const int message = RegisterWindowMessage("MY_MSG"); however attempting to do so leads to a error CS0133: The expression being assigned to 'someclass.messageEvent' must be constant so now I'm confused, does this mean the function was being assigned and called each time m_message was used previously, is there something else missing?

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  • Dynamically Added CheckBox Column is Disabled in GridView

    - by Mark Maslar
    I'm dynamically adding a Boolean column to a DataSet. The DataSet's table is the DataSource for a GridView, which AutoGenerates the columns. Issue: The checkboxes for this dynamically generated column are all disabled. How can I enable them? ds.Tables["Transactions"].Columns.Add("Retry", typeof(System.Boolean)); ds.Tables["Transactions"].Columns["Retry"].ReadOnly = false; In other words, how can I control how GridView generates the CheckBoxes for a Boolean field? (And why does setting ReadOnly to False have no effect?) Thanks!

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  • Create variable names using a loop in Java?

    - by SeerUK
    Hi, first time poster, long time reader so be gentle with me :) See the following code which works to generate me timestamps for the beginning and end of every month in a financial year. int year = 2010; // Financial year runs from Sept-Aug so earlyMonths are those where year = FY-1 and lateMonths are those where year = FY int[] earlyMonths = {8, 9, 10, 11}; // Sept to Dec int earlyYear = year -1; for (int i : earlyMonths) { month = i; Calendar cal = Calendar.getInstance(); cal.clear(); cal.set(earlyYear,month,1,0,0,0); Long start = cal.getTimeInMillis(); cal.clear(); cal.set(earlyYear,month,1); lastDayofMonth = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH); cal.set(earlyYear,month,lastDayofMonth,23,59,59); Long end = cal.getTimeInMillis(); } int[] lateMonths = {0, 1, 2, 3, 4, 5, 6, 7}; // Jan to Aug for (int i : lateMonths) { month = i; Calendar cal = Calendar.getInstance(); cal.clear(); cal.set(year,month,1,0,0,0); Long start = cal.getTimeInMillis(); cal.clear(); cal.set(year,month,1); lastDayofMonth = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH); cal.set(year,month,lastDayofMonth,23,59,59); Long end = cal.getTimeInMillis(); } So far so good, but in order to use these results I need these timestamps to be output to variables named by month (to be used in a prepared statement later in the code. e.g. SeptStart = sometimestamp, SeptEnd = some timestamp etc etc. I don't know if it is possible to declare new variables based on the results of each loop. Any ideas?

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  • How can I update multiple columns with a Replace in SQL server?

    - by Kettenbach
    How do I update different columns and rows across a table? I want to do something similiar to replace a string in SQL server I want to do this but the value exists in multiple columns of the same type. The values are foreign keys varchars to an employee table. Each column represents a task, so the same employee may be assigned to several tasks in a record and those tasks will vary between records. How can I do this effectively? Basically something of a replace all accross varying columns throughout a table. Thanks for any help or advice. Cheers, ~ck in San Diego

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  • ASP.NET - dynamically creating database connection in datasets

    - by Foo
    I am currently using datasets for my data access layer. I currently store the connection string in the web.config file. I need the ability to change the connection to another database before any queries are processed. Is there an event that is triggered or a base class that can be modified that intercepts the process of retrieving the connection string from the web.config file? Is there any way to handle multiple database connections using the same code base and also take advantage of the connection pooling? I understand the best method is to get rid of datasets and use custom data objects. Any ideas?

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  • ASP.NET dynamically reassign controls in the control tree

    - by pbz
    Let's say I have a custom control that looks like this <cc:MyControl runat="server" ID="myc" LinkControlID="NewParent" /> and, on the same page: <asp:TextBox runat="server" ID="NewParent" /> What I would like to do is, from MyControl, change NewParent's parent so that it would be part of MyControl's Controls collection. When I try to do this, from OnInit, I get: The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases. Which makes sense, but is there a way around this? I'm OK if NewParent remains the child of the Page as long as from MyControl I can somehow redirect the rendering to MyControl's control. Can this be done? Thanks. EDIT: To clarify here's a mockup of MyControl: public class MyControl : Panel { protected override void OnInit(System.EventArgs e) { base.OnInit(e); if (!String.IsNullOrEmpty(LinkControlID)) { Control link = Parent.FindControl(LinkControlID); if (link != null) { Controls.Add(link); } } } public string LinkControlID { get; set; } } This assumes that MyControl and LinkControlID are placed on the same level in the tree hierarchy, which is OK in my case.

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  • SEO on a Database Driven Website

    - by Ryan Giglio
    I have a question about a site I'm developing. It is a database driven directory site where people can make a profile and list themselves in one or many area codes and in one or many fields of work. When someone is looking for a person to hire, they enter one or more area codes to look in (or select them with checkboxes) and when the form submits, it saves these as a cookie so the site remembers what location you were searching in. You then narrow down your search by category and field (which are links) and get a listing of all the profiles that match your search. What I am concerned about is this: because a search engine can't type in or select area codes to search in, how is it going to find and index any of the profile pages? It doesn't allow the user to search for people without first selecting an area code, because there's no practical purpose to do so. There would also be no practical purpose from a user experience/usability standpoint of simply having a list of each area code as a link to the categories page, but as far as I know, isn't that the only way for search engines to see every person? How does a site like Facebook accomplish this? There isn't some sort of master directory with a link to ever single Facebook user's profile page, and yet they're often the #1 search result for a person's name.

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  • Extending Ruby, calling a function from C

    - by ThePower
    Hi, I'm writing an app that calls ruby code from c. I am having a little difficulty and wondered if anyone could point me in the rite direction. I currently have in my C. #include ruby.h main() { ruby_init(); rb_require("myRubyFile"); rb_funcall(rb_module_new(), rb_intern("RubyFunction"), 0, NULL); } My ruby file is in the same directory as my c file and is called myRubyFile.rb and contains a definition of the function RubyFunction(). This is a cut down of what I actually want to do, just making it more readable for others. I just require some feedback as to whether this is the correct method to call ruby code from my c file. Regards

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  • Programmatically Add Controls to WPF Form

    - by user210757
    I am trying to add controls to a UserControl dynamically (programatically). I get a generic List of objects from my Business Layer (retrieved from the database), and for each object, I want to add a Label, and a TextBox to the WPF UserControl and set the Position and widths to make look nice, and hopefully take advantage of the WPF Validation capabilities. This is something that would be easy in Windows Forms programming but I'm new to WPF. How do I do this (see comments for questions) Say this is my object: public class Field { public string Name { get; set; } public int Length { get; set; } public bool Required { get; set; } } Then in my WPF UserControl, I'm trying to create a Label and TextBox for each object: public void createControls() { List<Field> fields = businessObj.getFields(); Label label = null; TextBox textbox = null; foreach (Field field in fields) { label = new TextBox(); // HOW TO set text, x and y (margin), width, validation based upon object? // i have tried this without luck: // Binding b = new Binding("Name"); // BindingOperations.SetBinding(label, Label.ContentProperty, b); MyGrid.Children.Add(label); textbox = new TextBox(); // ??? MyGrid.Children.Add(textbox); } // databind? this.DataContext = fields; }

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