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  • SQL storing data about columns

    - by Chris
    I'm learning SQL Server Compact for a program I'm writing that requries a local database. I have multiple tables, each with different columns and I'd like to mark each column as being a certain type (not a data type, just an integer tag) to let the program know what to do with it. I'm clueless about SQL. How does one do this?

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  • Does Java need tuples?

    - by Yuval A
    This question got me re-thinking about something that always bothered me: Does Java need tuples? Do you feel the lack of them in your day-to-day work? Do you think tuples would simplify otherwise complex data structures you find yourself implementing?

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  • comparing data via a function

    - by tigermain
    I have two sets of data (locations) in seperate tables and I need to compare if they match or not. I have a UDF which performs a calculation based upon 5 values from each table. How do I perform a select with a join using this udf? my udf is basically defined by.... ALTER FUNCTION [dbo].[MatchRanking] ( @Latitude FLOAT , @Longitude FLOAT , @Postcode VARCHAR(16) , @CompanyName VARCHAR(256) , @TelephoneNumber VARCHAR(32) , @Latitude2 FLOAT , @Longitude2 FLOAT , @Postcode2 VARCHAR(16) , @CompanyName2 VARCHAR(256) , @TelephoneNumber2 VARCHAR(32) ) RETURNS INT

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  • Can I use google API to convert a PDF into PNGs?

    - by Ken
    I have noticed that when you view PDFs in google docs the PDF viewer renders the PDF file into PNG images. I was wondering if you could use Google Data API to upload a PDF and get the URLs of the rendered PNG files? I have never used the google API or really had the extra time to learn it, but if it help me do this it will be well worth the extra time.

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  • Problem to generate nested ul lists using PHP

    - by Michael Mao
    Hi all: I am working on a front-end web app where a nested unordered list would be used for the jQuery plugin mcdropdown. Here is the data structure from PHP: a nested array of arrays : Array ( [0] => Array ( [fullpath] => ../foil/alphanumeric/ [depth] => 0 ) [1] => Array ( [fullpath] => ../foil/alphanumeric/letters/ [depth] => 1 ) [2] => Array ( [fullpath] => ../foil/alphanumeric/numbers/ [depth] => 1 ) [3] => Array ( [fullpath] => ../foil/alphanumeric/numbers/symbols/ [depth] => 2 ) ) Basically, I took the excellent answer from this question on SO, modified it a bit : global $fullpaths; // $fullpaths contains the above data structure in print_r $result = ''; $currentDepth = -1; while(!empty($fullpaths)) { $currentNode = array_shift($fullpaths); if($currentNode['depth'] > $currentDepth) { $result .='<ul>'; } if($currentNode['depth'] < $currentDepth) { $result .=str_repeat('</ul>', $currentDepth - $currentNode['depth']); } $result .= '<li>'. $currentNode['fullpath'] .'</li>'; $currentDepth = $currentNode['depth']; if(empty($fullpaths)) { $result .= str_repeat('</ul>', 1 + $currentDepth); } } print $result; and got the following output: <ul> <li>../foil/alphanumeric/</li> <ul> <li>../foil/alphanumeric/letters/</li> <li>../foil/alphanumeric/numbers/</li> <ul> <li>../foil/alphanumeric/numbers/symbols/</li> </ul> </ul> </ul> Which cannot be accepted by the mcdropdown jQuery plugin, it expects something like this: <li rel="1"> 'Alphanumeric' <ul> <li rel="2">'Letters'</li> <li rel="3">'Numbers' <ul> <li rel="4">'Symbols'</li> </ul> </li> </ul> </li> To be frank, I don't quite understand how the answer from that question works, I have been trying to modify that solution to cope with my situation, but still failed. Any help and suggestion is much appropriated in advance.

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  • Error messages for model validation using data annotations

    - by oneBelizean
    Given the follow classes: using System.ComponentModel.DataAnnotations; public class Book{ public Contact PrimaryContact{get; set;} public Contact SecondaryContact{get; set;} [Required(ErrorMessage="Book name is required")] public string Name{get; set;} } public class Contact{ [Required(ErrorMessage="Name is required")] public string Name{get; set;} } Is there a clean way I can give a distinct error message for each instance of Contact in Book using DataAnnotations? For example, if the name was missing from the PrimaryContact instance the error would read "primary contact name is required". My current solution is to create a validation service that checks the model state for field errors then remove said errors and add them back using the specific language I'd like.

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  • Where is cck "number of values" data stored?

    - by calebthorne
    I have a cck field that needs to allow a different number of values depending on the role of the currently logged in user. I'd like to find where the "number of values" data is stored for a cck field so that it can be dynamically changed when the node edit form is displayed.

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  • Encyption in DATA access block

    - by Sathish
    I am using enterprise library DATA access block in my application and now i want to Encrypt the connection string and store it in the Config file and consume it in my application after decrypting the same. How can i do this

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  • Databinding to type double - decimal mark lost

    - by user1277327
    I have a project where I'm databinding a gridview to a list, where one column is databound to a gridview. The problem I have is that with the double being 5.5 on one computer it appears as 5.5 in the gridview. But on another it looks like 55, the decimal mark dissapears. So 3.14 will look like 314 etc. The error occurs with the following code: myDatagrid.ItemsSource = someList; Binding binding = new Binding("DoubleValue"); myColumnInDatagrid.Binding = binding; I've also tried using a very simple valueconverter, that just return the double, and parsed it in ConvertBack. I'm pretty new to WPF so I'm sorry if I've made some obvious mistakes, I just don't understand why it works on one computer but not on the other. Perhaps it should be noted that both of the computers use the same operating system, with the same language settings (afaik at least).

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  • GridView Style based on bound data.

    - by Matthew Jones
    I would like the rows of my GridView to have strikethrough based on a bound data value called IsObsolete. I tried to do this: <RowStyle BackColor="#EFF3FB" Font-Strikeout='<%# Bind('IsObsolete') %>' /> But obviously this doesn't parse. I'd rather not do this in GridView.DataBound(). Any other ideas?

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  • PHP uploads file - enctype="multipart/form-data" issue

    - by user147685
    Hi all, I have this upload code. there are no problem running it individually, but when i try to add into my other codes, it did not get the $_files parameter. Im guessing it was becoz of enctype="multipart/form-data" in the form tag, based on this post: http://stackoverflow.com/questions/1695246/why-file-upload-didnt-work-without-enctype the enctype is needed. SO my problem is, how can i do upload files without concern to this? can we juz change the code structure so that it will be compatible with other codes? if($_POST['check']){ $faillampiran=$_POST['faillampiran']; $file=$_FILES['faillampiran']["name"]; $fileSize = $_FILES['faillampiran']['size']; $fileType = $_FILES['faillampiran']['type']; if ($_FILES["faillampiran"]["error"] > 0 ) { echo "Return Code: " . $_FILES["faillampiran"]["error"] . "<br />"; } else { move_uploaded_file($_FILES["faillampiran"]["tmp_name"],"upload/" . $_FILES["faillampiran"]["name"]); echo '<table align = "center">'; echo "<tr><td>"; echo "Your file has been successfully stored."; echo "</td></tr>"; echo '</table>'; } } ?> <form method="post" name="form1" id="form1" enctype="multipart/form-data"> <tr><td></td><td><input type="hidden" name="MAX_FILE_SIZE" value=""> </td> </tr> <tr><td> Please choose a file</td><td>:</td></tr> <tr> <input type="file" size="50" name="faillampiran" alt="faillampiran" id="faillampiran" 1value= "<?=$faillampiran;?>" /> <tr align = "center"><td colspan = "3"><input type="submit" value="Hantar" name="check"/></td></tr> </tr></form> thank you.

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  • Behavior Tree Implementations

    - by Hamza Yerlikaya
    I am looking for behavior tree implementations in any language, I would like to learn more about how they are implemented and used so can roll my own but I could only find one Owyl, unfortunately, it does not contain examples of how it is used. Any one know any other open source ones that I can browse through the code see some examples of how they are used etc? EDIT: Behavior tree is the name of the data structure.

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  • Getting Json data into a list view

    - by Rahul Varma
    Hi, I have been searching for a way to get the json data from a URl (for example: http://search.twitter.com/trends.json) and display it in a listview. Couldnt get a perfect example to get it done. Can anyone plz help me out by getting the solution and providing a good example of how to do it...

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  • handle user logoff or machine shutdown requests on WindowsME

    - by skylap
    I have to write a C# application that runs on WindowsME. Yes, I mean that Microsoft operating system that has been forgotten a long long time ago. My program needs no user interaction and as WindowsME doesn't support services, it will be a console application. Furthermore it will be used on more modern operating systems, where the user can choose whether to start it as console application or install it as a windows service. Now suppose the software is running on WinME and the user decides to logoff or shutdown the machine without a prior quit of my software. WinME complains about my program still running and asks if it should kill the process. Apart from the bad user experiance, this means that the application is not shut down properly. So I look for a way to be informed if the user logs off or wants to shutdown the machine to be able to perform a proper shutdown of my software first.

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  • Casting Between Data Types in C#

    - by Jimbo
    I have (for example) an object of type A that I want to be able to cast to type B (similar to how you can cast an int to a float) Data types A and B are my own. Is it possible to define the rules by which this casting occurs? Example int a = 1; float b = (float)a; int c = (int)b;

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  • Check for Duplicates in a Database Before Entering Data

    - by gamerzfuse
    Before Entering data into a database, I just want to check that the database doesn't have the same username in the database already. I have the username in SQL set as a key, so it can't be duplicated on that end, but I am looking at finding a more user-friendly error message then "KEY already exists". Is there are simple way to check if the variable value already exists in a row? Thanks!

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