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• Upload large files in .NET

  - by Austin

  I've done a good bit of research to find an upload component for .NET that I can use to upload large files, has a progress bar, and can resume the upload of large files. I've come across some components like AjaxUploader, SlickUpload, and PowUpload, to name a few. Each of these options cost money and only PowUpload does the resumable upload, but it does it with a java applet. I'm willing to pay for a component that does those things well, but if I could write it myself that would be best. I have two questions: Is it possible to resume a file upload on the client without using flash/java/Silverlight? Does anyone have some code or a link to an article that explains how to write a .NET HTTPHandler that will allow streaming upload and an ajax progress bar? Thank you, Austin [Edit] I realized I do need to be able to do resumable file uploads for my project, any suggestions for components that can do that?

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• Questions every good PHP Developer should be able to answer

  - by Rachel

  I was going through Questions every good .Net developer should be able to answer and was highly impressed with the content and approach of this question and so in the same spirit, I am asking this question for PHP Developer. What questions do you think should a good PHP programmer be able to respond to? EDIT : I am marking this question as community wiki as it is not user specific and it aims to serve programming community at large. Looking forward for some amazing responses. NOTE : Please answer questions too as suggested in the comments so that people could learn something new too regarding the language.

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• Proper use of Q_OBJECT?

  - by Jen

  If I derive my class from QObject (or a subclass), the Qt documentation says that I have to put the Q_OBJECT macro into my class declaration. It also ways I need to "run the meta-object compiler" for my class. I have no idea how to do this. Is this something I need to add to the .pro file? Do I need to edit the makefile? This seems overly complicated for a simple derived class. I'm using Qt Creator.

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• PreMade Webdesign and Drupal

  - by mrduclaw

  I'm terribly new to web development. I'm trying to make a pretty simple site with a friend. My friend has taken the time to design the layout for our site, and we have things looking how we want in a static HTML page. What I'd like to do now is move over to a Content Management System like Drupal but keep the same design that we have all ready laid out. Since I'm completely new to this field, I'm looking for some best-practices advice as to how to make this leap. It's apparent to me that I could probably edit some existing Drupal Theme to make it give me the layout that I want, but is that the path I should go down? Thanks! Update: Also, is it more than just replacing my style.css with their style.css?

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• How to filter a dataview

  - by dboarman-FissureStudios

  I have a dataview that contains a list of tables. I am reading in a list of values that I then want to apply as a filter to this dataview. The list of values is actually in the form of "table1, table2, table3". So I thought I would be able to use this as a filter on my dataview. SqlOp.CommandText = "select name from dbo.sysobjects where xtype='u'"; SqlOp.ExecuteDataReader(); DataView dv = SqlOp.GetDataAsDataView(); SqlOp.CloseConnection(); Returns a list of all the tables in a dataview. Any help on how to filter this dataview? Edit: Not sure if I was completely clear in what I seek to accomplish. To clarify, I am trying to figure out how/if .RowFilter will help me in filtering this dataview. Something like: dv.RowFilter = "name IN (table1, table2, table3)" // I know this doesn't work

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• create xml from object

  - by Gannesh

  Basically i want to create XMLDesigner kind of thing in Flex, using which user can add/edit components and properties of view/dashboard. i am storing view structure in a xml file. i parsed that file at runtime and display view. How to convert an object (having properties and sub-objects) to xml node (having attributes and elements) and add that xml to the existing xml file. so that next time when i parsed xml file i'll get that new component in my view/dashboard. for e.g, object structure of component in xml file : <view id="productView" label="Products"> <panel id="chartPanel" type="CHART" ChartType="Pie2D" title="Productwise Sales" x="215" y="80" width="425" height="240" showValues="0" > </panel> </view> Thanks in Advance.

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• Unable to compare valuesfrom mysql in a prepared statement

  - by Cortopasta

  I can't seem to get this to connect to the database so that I can run my prepared statement. Does anybody have an idea what I've forgotten? private function check_credentials($plain_username, $password) { global $dbcon; $ac = new ac(); $ac->dbconnect(); $userid = $dbcon->prepare('SELECT id FROM users WHERE username = :username AND password = :password LIMIT 1'); $userid->bindParam(':username', $plain_username); $userid->bindParam(':password', $password); $userid->execute(); $id = $userid->fetch(); Return $id; } EDIT: I changed the SQL query from a SELECT FROM query, to an INSERT INTO query and it worked. WHat the heck is going on?

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• GData for my own API?

  - by Malax

  Hi StackOverflow! Im currently planning to build an API for my service. I want to use GData because it fits the application scheme and there are libraries for many programming languages available. The first question that rose: Am I allowed to do that? I mean, Google put lots of work into the GData specification and have some sort of copyright. Does anyone know anything about this issue or did that before? You could extend the case if you want to specifically mimic an API which uses GData like the YouTube API to have my API 100% compliant. This is not my case, but I was wondering about that too. :-) Thank you for any input, Malax Edit: Note that i want to use it for my own service. So, I am implementing an API using the GData protocol, not using one of the Google APIs.

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• Visual C# GUI Designer basic tutorial

  - by cusack

  Hi, can you recommend a Visual C# Form Designer tutorial that is targeted at experienced programmers who have at least a basic knowledge of C# but are new to the VS C# Form Designer. At least it shouldn't be targeted at programming newbs, like Introduction to Visual C# 2008 Express Edition (it explains how a comment looks like in C#). So far I've found C# Programming Tutorial - Programming Winforms in C# on stackoverflow. Wishlist: ;-) I'm more interested in focus on the designer itself rather than an explanation of single gui-elements. In other words explaining separation between generated-code, what to not edit manually (visual-c#-designer-responsibility) and on the other hand the parts for which the programmer himself is responsible. So a little more abstract best-practice point of view pointing out some caveats would be great as well. I would prefer text over video as well, but that's minor. /Wishlist Perhaps even a Microsoft reference specific to the Visual c# forms designer (which I seem to have been unable to find) would be helpful.

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• How do I sort a hash table in javascript?

  - by Colen

  I have a javascript hash table, like so: var things = [ ]; things["hello"] = {"name" : "zzz I fell asleep", "number" : 7}; things["one"] = {"name" : "something", "number" : 18}; things["two"] = {"name" : "another thing", "number" : -2}; I want to sort these into order by name, so if I iterate through the hash table it will go in order another thing something zzz I fell asleep I tried doing this: function compareThings(thing1, thing2) { var name1 = thing1["name"].toLowerCase(); var name2 = thing2["name"].toLowerCase(); if (name1 < name2) { return -1; } if (name1 > name2) { return 1; } return 0; } things.sort(compareThings); But it doesn't seem to work. Edit: it occurs to me that perhaps a sorted hash table is an oxymoron. If so, what's the best way to get access to a sorted list of the things here?

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• jQuery, PHP, AJAX, "tu" variable beeing posted for no reason, shows in var_dump()

  - by Mattis

  A jQuery AJAX request .post()s data to page.php, which creates $res and var_dump()s it. $res: $res = array(); foreach ($_REQUEST as $key => $value) { if($key){ $res[$key] = $value; } } var_dump($res): array(4) { ["text1"]=> string(6) "mattis" ["text2"]=> string(4) "test" ["tu"]=> string(32) "deb6adbbff4234b5711cc4368c153bc4" ["PHPSESSID"]=> string(32) "cda24363cb9d3226bd37b2577ed0bc0b" } My javascript only sends text1 and text2: $.post("page.php",{ text1:"mattis", text2:"test" } What is the "tu" variable beeing sent? Apparantly it's very similar to the session id, but I've never seen it before. EDIT: It is sent in IE but not in FF.

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• Good websites and/or books to learn game algorithms?

  - by Moshe

  I'm interested in learning video game algorithms. (For iPhone particularly, but generally as well. I assume certain concepts are the same.) I am best off (personally) learning from a book but websites are useful too. What has helped you learn game programming algorithms and concepts? EDIT: As per request, I'll clarify the types of algorithms... I was looking for any algorithms really, but I guess I was interested in (top-down view) platformer algorithms, but, now that you mention it, Seth, I do wonder about chess...

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• PHPMailer erroring out with Call to undefined method PHPMailer::SetFrom()

  - by dotty

  Hay I'm using PHPMailer to send some simple emails, however the function SetFrom() doesn't seem to work, even though the code I'm using is straight from phpmails docs (http://phpmailer.worxware.com/index.php?pg=examplebmail) Here my error Call to undefined method PHPMailer::SetFrom() and my script require_once('inc/phpmailer/class.phpmailer.php'); $mail = new PHPMailer(); // defaults to using php "mail()" $body = $message; $mail->SetFrom('[email protected]', 'tell a friend'); $mail->AddAddress($to_email, $to); $mail->Subject = "tell a friend"; $mail->MsgHTML($body); $mail->Send(); Any ideas? EDIT turns out the SetFrom() function doesnt exist in my version of phpmailer, i can set these values using $mail->From = ''; $mail->FromName = '';

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• Reverse Engineer a .pyo python file

  - by Brian

  I have 2 .pyo python files that I can convert to .py source files, but they don't compile perfectly as hinted by decompyle's verify. Therefore looking at the source code, I can tell that config.pyo simply had variables in in an array: ADMIN_USERIDS = [116901, 141, 349244, 39, 1159488] I would like to take the original .pyo and disassembly or whatever I need to do inorder to change one of these IDs. Or.... in model.pyo the source indicates a if (productsDeveloperId != self.getUserId()): All I would want to do is hex edit the != to be a == .....Simple with a windows exe program but I can't find a good python disassembler anywhere. Any suggestions are welcomed...I am new to reading bytecode and new to python as well.

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• A very weired problem with texbox control in C# .net

  - by Kazoom

  Well i know textbox is a very simple user control, perhaps the first input control ever made. I have been facing a very frustrating problem with this simple control. I programatically add a textbox in my user control. From ui i am able to edit it like a normal textbox. however, i am not able to read the user inputed value in the program. my program all the time sees the old value with which my text box was initialized. i textchange event getting triggered but the value never gets updated. This seemingly looks to be some innocuous bug in the code, but the program is very simple and it does not seem to be having any bug. Any guidelines on this issue?

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• Parsing HTML with Python 2.7 - HTMLParser, SGMLParser, or Beautiful Soup?

  - by Eric Wilson

  I want to do some screen-scraping with Python 2.7, and I have no context for the differences between HTMLParser, SGMLParser, or Beautiful Soup. Are these all trying to solve the same problem, or do they exist for different reasons? Which is simplest, which is most robust, and which (if any) is the default choice? Also, please let me know if I have overlooked a significant option. Edit: I should mention that I'm not particularly experienced in HTML parsing, and I'm particularly interested in which will get me moving the quickest, with the goal of parsing HTML on one particular site.

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• How to get users to read error messages?

  - by FX

  If you program for a nontechnical audience, you find yourself at a high risk that users will not read your carefully worded and enlightening error messages, but just click on the first button available with a shrug of frustration. So, I'm wondering what good practices you can recommend to help users actually read your error message, instead of simply waiving it aside. Ideas I can think of would fall along the lines of: Formatting of course help; maybe a simple, short message, with a "learn more" button that leads to the longer, more detailed error message Have all error messages link to some section of the user guide (somewhat difficult to achieve) Just don't issue error messages, simply refuse to perform the task (a somewhat "Apple" way of handling user input) Edit: the audience I have in mind is a rather broad user base that doesn't use the software too often and is not captive (i.e., not an in-house software or narrow community). A more generic form of this question was asked on slashdot, so you may want to check there for some of the answers.

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• telerik mvc grid access cell data to enable columns.Command

  - by AZee

  Hi! I can't seem to find a way to reference the value in a column in the grid, in my case it is the StatusId. Based on the cell value in this row, for the StatusId, I need to return a true or false to the method ".Visible(???)". It would be nice to find the answer in the documentation online but I haven't been able to. I find it hard to believe that I would be the first person who ever needed this functionality. I would be most appreciative of any assistance since no one in the telerik forums know. .Columns(columns => { columns.Command(commands => { commands.Edit().ButtonType(ButtonType); commands.Delete().ButtonType(ButtonType); }).Width(90).Visible(???); Thanks! AZee

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• JMenuBar dropping down to a "custom" JPanel and "erased"

  - by Jani

  The JMenuItems of JMenuBar drops down to a JPanel added to the JFrame, but the JPanel erases the JMenuItems. Do I supposed to pause the re-drawing of the JPanel? I'm using getGraphics() on the JPanel for drawing an image, this method is called from a thread with (for example) 200 ms delay. edit: It's a (very simple) game inside the JPanel. (I've added a field "paused" to the JPanel and i've edited the paint method so it repaints the JPanel only if paused is false, however I don't know if this "solution" is good. (It's set to true when the user clicks on a menu and set to false when selects or cancels it.)

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• can't update rails model

  - by Tristan

  Hi there, I'm rather new to rails. I have a controller that's attempting to update a model using the following code: @test = Product.find(1) @test.increment!(:price) It does successfully retrieve the Product from the database, but does not update the price attribute. Does anyone know why this might be the case, or how I could get more feedback on what the problem is? Thanks a bunch! Tristan edit: price is an integer with value 0. I get the same problem when I set the price with @test.price=50 and then @test.save .

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• How to get index using LINQ?

  - by codymanix

  Given a datasource like that: var c = new Car[] { new Car{ Color="Blue", Price=28000}, new Car{ Color="Red", Price=54000}, new Car{ Color="Pink", Price=9999}, // .. }; How can I find the index of the first car satisfying a certain condition with LINQ? EDIT: I could think of something like this but it looks horrible: int firstItem = someItems.Select((item, index) => new { ItemName = item.Color, Position = index }).Where(i => i.ItemName == "purple") .First() .Position; Will it be the best to solve this with a plain old loop?

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• Converting Oracle date arithmetic to work in HSQLDB

  - by JBristow

  I'm trying to spot-test an Oracle backed database with hsqldb and dbunit, but I've run into a snag. The problem is with the following EJB-QL (simplified a bit): SELECT o FROM Offer o WHERE :nowTime BETWEEN o.startDate AND o.startDate + 7 This seems to only work in Oracle's version of SQL. What's the easiest way for me to convert this to work in both hsqldb and oracle? Assume that changing the two between arguments to named parameters is a very difficult refactor, so I'm going to favor answers that provides a more standardized analog to o.startdate + 7 EDIT: After doing some more research, it looks like Oracle converts the above snippet to o.startdate + INTERVAL '7' DAY which is apparently more standard, but doesn't work in HSQLDB.

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• Python: x-y-plot with matplotlib

  - by kame

  I want to plot some data. The first column contains the x-data. But matplotlib doesnt plot this. Where is my mistake? #fresnel formula import numpy as np from numpy import cos from scipy import * from pylab import plot, show, ylim, yticks from matplotlib import * from pprint import pprint n1 = 1.0 n2 = 1.5 #alpha, beta, intensity data = [ [10, 22, 4.3], [20, 42, 4.2], [30, 62, 3.6], [40, 83, 1.3], [45, 102, 2.8], [50, 123, 3.0], [60, 143, 3.2], [70, 163, 3.8], ] for i in range(len(data)): rhotang1 = (n1 * cos(data[i][0]) - n2 * cos(data[i][1])) rhotang2 = (n1 * cos(data[i][0]) + n2 * cos(data[i][1])) rhotang = rhotang1 / rhotang2 data[i].append(rhotang) #append 4th value pprint(data) x = data[:][0] y1 = data[:][2] y3 = data[:][3] plot(x, y1, x, y3) show() EDIT: http://paste.pocoo.org/show/205534/ But it doesnt work.

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• Overriding SQLMembershipProvider in C#

  - by vikp

  Hi, Is there built in methods into .net framework to do the following: Get role GUID from user name/user GUID Get role name from role GUID So far I have been sending queries to the asp_roles and asp_users tables to obtain that information and I'm wondering if there is a nicer way of doing this? I have the following methods that I store in the ASPUtilities class: getRoleGUID(guid userGuid) { LINQ joins } getRoleGuid(string userName) { LINQ joins } getRoleName(guid roleGuid) { LINQ joins } Thank you EDIT: I have just looked into extending SQLMembershipProvider examples. Few examples completely override the SQLMembershipProvider, but I think what I'm interested is just adding few extra methods to deal with the roles by using LINQ. Is this feasible?

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• WPF - Drag from withing DataTemplate

  - by Gustavo Cavalcanti

  I have a ListBox displaying employees with a DataTemplate - it looks very similar to this screenshot. I want to be able to click on the employee photo, drag it and drop it somewhere out of the ListBox. How can I do that? I am not sure how to capture the PreviewMouseLeftButtonDown event of the Image, since it's inside the DataTemplate. Edit: The DataTemplate lives in a separate assembly and the drag/drop logic needs to be in the Window that has the ListBox. Edit2: I am thinking that the right way of doing this is using commands, am I right? Thanks!

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