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  • System.Threading.Timer example to run and display seconds until you click a button

    - by Roy
    Hi, I am having some issues creating an asp.net page using C# When you first click a button it starts the display of seconds via a label control. When you click the button again the seconds stop. Currently my code behind looks like this: System.Threading.Timer Timer; bool endProcess = false; int i = 0; protected void Page_Load(object sender, EventArgs e) { Timer = new System.Threading.Timer(TimerCallback, null, 10, 10); } private void TimerCallback(object state) { Label1.Text = i.ToString(); i++; if (endProcess == true) { Timer.Dispose(); return; } } public void Button1_Click(object sender, System.EventArgs e) { endProcess = true; }

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  • [PHP-GD] Background transperancy in imagerotate()

    - by KPL
    Hello people, Since last 2 days, I was trying to add transperancy to the background after rotating an image using imagerotate() PHP-GD function. But, to my great disappointment, it's not working at all. It's just giving out a black background behind it. Here's my code - $patchImageS = 'image.png'; // the image to be patched over the final bg $patchImage = imagecreatefrompng($patchImageS); // resource of image to be patched $patchImage = imagerotate($patchImage, 23, 0, 0); imagepng($patchImage,'tt.png'); I tried to change the parameters being passed in function to imagerotate($patchImage, 23, 5, 0); imagerotate($patchImage, 23, 0, 5); Any help would be highly appreciated.

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  • HTML form submits and the hostname changes to IP address

    - by Shamik
    I am facing a peculiar problem. The problem is, my webapp is being installed behind a proxy. The request gets submitted to the proxy which forwards the request to the original host that is running the websphere web application. The problem I am facing is, when I access the webapp, its URL looks like the below http://www.myproxy.com Lets say I get a form on this URL, when I submit the form, it is getting submitted to another URL - http://10.1.2.87 Since the URL is changing, application server thinks it is a different session and throws the login page again. The login page comes thru a filter which checks whether user is already authenticated in the session or not. I do not have much knowledge on proxy settings .. where do you think is the problem?

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  • jQuery code doesn't work when normally run. But i does with breakpoints activated.

    - by Dante
    Hi, I have the following code in my application: $(".deleteproduct").click(function() { id = this.id; alert("id: " + id); }); If i run my site nothing happens when I click on an element with the class deleteproduct. But when I place breakpoints before line 1,2 and 3 it works like a charm. The elements with class deleteproduct are loaded through AJAX call right behind $(document).ready(function(). The .click code is underneath it. This seems really weird to me. It's working if breakpoints in Firebug are used, but not when there are not...

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  • Display different xsl:attribute depending on the ending of a string

    - by Johann
    Dear All, I have the following xsl code in an xsl document <A target="_blank" style="text-decoration=none"> <xsl:attribute name="href">viewdoc.aspx?doc=<xsl:value-of select="URLFilePath"/>&amp;mode=inline</xsl:attribute> <xsl:attribute name="prefix"><xsl:value-of select="FileName"/>: </xsl:attribute> <IMG src="images/word_small.gif" border="0"/> </A> and in the code-behind I am doing this newItemNode = xmlDocument.CreateElement("URLFilePath") newItemNode.InnerText = correctedPath xmlItemNode.ParentNode.AppendChild(newItemNode) Now that works fine for word documents. However I need a way in code to check the extension of the file, and display the correct Image and xsl:attribute depending on the If statement. So the If statement will be like this:- If correctedPath.ToLower.Contains(".doc") Then //display the word icon and attributes Else //display the excel icon and attributes End If Can you please give me some tips and help on how I can achieve this? Thanks

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  • WPF custom user widgets. Will UI components be standardized?

    - by Andrew Florko
    There are lots of articles and video lessons that describe how to create your unique user widget (graphical control) with WPF. There are tons of technical details what is behind the scene and I feel people enthusiasm with ability to customize widgets as never before. I remember those days when VCL library (Delphi) appeared and there was the same enthusiasm in VCL widgets area. Ability to create VCL controls was nearly the must when you was applying for a job as Delphi developer. This situation continued for several years till professional sophisticated 3'd party UI libraries appeared. Hardly you'll have to create your own VCL widget nowadays. Will WPF widgets enthusiasm die as VCL one?

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  • Change default Console I/O functions handle.

    - by b-gen-jack-o-neill
    Hello. Is it possible to somehow change standart I/O functions handle on Windows? Language preffered is C++. If I understand it right, by selecting console project, compiler just pre-allocate console for you, and operates all standart I/O functions to work with its handle. So, what I want to do is to let one Console app actually write into another app Console buffer. I though that I could get first´s Console handle, than pass it to second app by a file (I don´t know much about interprocess comunication, and this seems easy) and than somehow use for example prinf with the first app handle. Can this be done? I know how to get console handle, but I have no idea how to redirect printf to that handle. Its just study-purpose project to more understand of OS work behind this. I am interested in how printf knows what Console it is assiciated with.

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  • Why does UITableViewCell have a contentView property?

    - by mystify
    What's the point of this contentView property? I mean: Why aren't all the subviews just added to self? Let me get that right: Every cell is a view (UITabvleViewCell is a UIView subclass). And this fat view has another fat view with same bounds sitting on top of it, called contentView. That contentView then carries all those other subviews. Now why didn't they save that extra chunk of memory? Is there any genius logic behind this decision? Would love to understand the reason for this.

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  • Displaying "broken" sprites?

    - by Roman
    I'm quite new to the world of 2D-Engines. I figured out how to load images and display those as sprites and stuff, but theres one question that bugs me. For instance, when a "rocket" hits an object it will deal damage to it and leave a crater behind. I'd like to have the crater shown on that object. That would require "skipping" some of the pixels of that image when rendering, doesn't it? My question is, how would you do such a thing? What data strcture would you use to save this? How to display a "broken" sprite?

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  • Need help getting DIV inside DIV to stretch to width of contents in Firefox

    - by bj.
    I am using a layout similar to the one from Dynamic Drive here: http://www.dynamicdrive.com/style/layouts/item/css-right-frame-layout/ The main content area (white) has overflow set to auto. I have given the innerTube inside this main content area a border. However if the contents within this innerTube are greater than the width of the main content area, a horizontal scroll bar will appear as expected, but in Firefox these contents will 'overlap' the border and go off screen (can be retrieved by scrolling horizontally). In other words, the right hand border remains in place, and the content just goes over the op of it, and disappears behind the right hand column. In IE it behaves exactly as I want - the content pushes the border off screen to be visible only once you scroll over there. I guess the easiest thing is to paste the source code here. If you copy it into a blank file you'll see what I mean. I've just used one really long word to replicate what happens if a wide image is there instead. Thanks in advance to anyone who can help me out. <!--Force IE6 into quirks mode with this comment tag--> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <style type="text/css"> body{ margin: 0; padding: 0; border: 0; overflow: hidden; height: 100%; max-height: 100%; } #framecontent{ position: absolute; top: 0; bottom: 0; right: 0; width: 200px; /*Width of frame div*/ height: 100%; overflow: hidden; /*Disable scrollbars. Set to "scroll" to enable*/ background: #cccccc; color: white; } #maincontent{ position: fixed; top: 0; left: 0; right: 200px; /*Set right value to WidthOfFrameDiv*/ bottom: 0; overflow: auto; background: #fff; } .innertube{ margin: 15px; /*Margins for inner DIV inside each DIV (to provide padding)*/ } .innertubeWithBorder { margin: 15px; border: solid 1px #666666; } * html body{ /*IE6 hack*/ padding: 0 200px 0 0; /*Set value to (0 WidthOfFrameDiv 0 0)*/ } * html #maincontent{ /*IE6 hack*/ height: 100%; width: 100%; } </style> </head> <body> <div id="framecontent"> <div class="innertube"> <h1>CSS Right Frame Layout</h1> <h3>Sample text here</h3> </div> </div> <div id="maincontent"> <div class="innertubeWithBorder"> <h1>Dynamic Drive CSS Library</h1> <p>AReallyLongWordWhichIsSimilarToHavingAnImageWithWidthGreaterThanTheWidthOfThisDivToShowOverFlowProblemWithBorderSoIfYouResizeThisWindowNarrowerYouWillSeeWhatIMeanWorksFineInIEButNotFirefox</p> <p>So I want that border over there ------> to dissappear behind the right hand column like it does in IE, and be visible once you use the scrollbar below and scroll to the right</p> <p style="text-align: center">Credits: <a href="http://www.dynamicdrive.com/style/">Dynamic Drive CSS Library</a></p> </div> </div> </body> </html>

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  • Getting the errors for code in unopened .aspx pages

    - by Glennular
    Is there a way to check for errors in unopened *.ASPX pages. For example, if you change the name of a function Visual Studio will catch the error on the page and list it in the "Error List" only if the page is opened and being validated? I guess the question could be is there a validation option opposed to the compile option to check for errors? (Yes, i know code should go into the pre-compiled code-behind pages.) How do i find out about the following without running the page through the webserver or opening the page to be validated in VS? <script runat="server"> Public Sub MyFunciton() Undefined_FUNCTION() End Sub </script>

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  • Good Silverlight 4.0 chart / graph component?

    - by Duncan Bayne
    I've been using the Silverlight Toolkit but I'm finding the quality lacking; in particular this memory leak / phantom point bug renders the Chart component completely unusable. Can anyone recommend a good chart / graph component for Silverlight 4.0? I'm looking for one that provides: multiple simultaneous series, both scatter and line multi-select of points configurable tool-tips automatic axis scaling real-time update of data That last point sounds trivial but is tripping up the Silverlight Toolkit Chart; if you rapidly change the axis range, it sometimes leaves phantom points behind in addition to the points it should be displaying.

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  • HA with nginx and cloud environment

    - by gotts
    I have a node in cloud environment which is used now as nginx and mongrels behind it. This is what nginx config looks like: upstream mongrel { server 127.0.0.1:8000; server 127.0.0.1:8001; server 127.0.0.1:8002; } I want to achieve the following: add another node nginx has to know about this new node automatically without stopping him, changing config(manually adding new node's mongrels) and starting it again. How can I make my load balancer(nginx) work in the way so it can be self-aware of nodes in cloud?

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  • C#: why Base class is allowed to implement an interface contract without inheriting from it?

    - by etarassov
    I've stumbled upon this "feature" of C# - the base class that implements interface methods does not have to derive from it. Example: public interface IContract { void Func(); } // Note that Base does **not** derive from IContract public abstract class Base { public void Func() { Console.WriteLine("Base.Func"); } } // Note that Derived does *not* provide implementation for IContract public class Derived : Base, IContract { } What happens is that Derived magically picks-up a public method Base.Func and decides that it will implement IContract.Func. What is the reason behind this magic? IMHO: this "quasi-implementation" feature is very-unintuitive and make code-inspection much harder. What do you think?

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  • WPF: Calling a method from a different "branch" of the tree

    - by sofri
    Hey, I'm doing a WPF Application. The tree looks like this: SurfaceWindow --- Startscreen ..........................-------- Page---------- Subpage I'm trying to call a method from the "Subpage" from the "Code Behind" of the Startscreen(Startscreen.xaml.cs). The method from the Subpage looks like this: public void showTheme(ThemeViewModel theme) { ... } If know that I can call it when I'm on the "Page" or the "SurfaceWindow", because it's in the same "branch" of the tree, and I just do something like this: ThemeViewModel theme = (ThemeViewModel)mvm.CurrentItem.ThemeViewModel; katalog.katalogblatt.showTheme(theme); But how do I do it when I'm not on the same branch of the tree and want to call the method?

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  • Why do MSTests Assert.AreEqual(1.0, double.NaN, 0.0) pass?

    - by Egil Hansen
    Short question, why do Assert.AreEqual(1.0, double.NaN, 0.0) pass when Assert.AreEqual(1.0, double.NaN) do not? Is it an error in MSTest or am I missing something here? Best regards, Egil. Update: Should probably add, that the reason behind my question is, that I have a bunch of unit tests that unfortunately passed due to the result of some linear algebraic matrix operation being NaN or (+/-)Infinity. The unit tests are fine, but since Assert.AreEqual on doubles with a delta will pass when actual or/and expected are NaN or Infinity, I was left to believe that the code I was testing was correct.

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  • What is Perl doing with this argument to push in this case?

    - by Morinar
    I just saw some code in our code base (and it's OLD code, as in Perl 3 or Perl 4 days) that looks like this (I'm simplifying greatly): my @array; push( array, $some_scalar ); Notice that the array in the push() doesn't have an @. I would assume that the code behind push knows that the first argument is supposed to be array so grabs the array from the array typeglob. Is that more or less it? If Perl is able to do that without problem, why would you need to include the @ at all?

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  • How can I bind dynamic data to DataGridTemplateColumn in code?

    - by TuomoT
    I'm using DataGrid from CodePlex. I have objects (ICustomTypeDescriptor) that have properties 'name' 'description' 'c' 'd' and so on (the names are dynamic, and so is the value) and they have information behind them. I have templates for different types. And if I have to list the properties of a single element I can just bind to the values in xaml and use datatemplateselector (in datagridtemplatecolumn) which will pick the correct template. However, when I'm listing several of the elements, how can I use the selectors and the templates? How do I get the correct property bound to the template (two-way)? When ignoring the need for different templates, using DataGridTextColumn with bindings is very simple (and works, see example below), is there any way to use similar approach with the DataGridTemplateColumn? foreach (String propertyName in listOfPropertyNames) { DataGridTextColumn textColumn = new DataGridTextColumn() { Header = propertyName, Binding = new Binding() { Path = new PropertyPath(propertyName) } }; DataGrid.Columns.Add(textColumn); }

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  • Quality Design for Asynchronous WCF Services Calls in a Middle-Tier and Returning Data to UI Tier

    - by Perplexed
    I have a WPF application with a group of asynchronous WCF service calls all mashed into the code behind, complete with event handlers and everything, that I have to refactor to productionize and maintain. I want to separate concerns here for maintainability and all the other good reasons to do this, but I'm not sure exactly how to achieve this. Anybody have any good ideas on how to do this, or at least some links to put me in the right direction? My thinking: Create an "infrastructure" layer and reference the services there. Move the asynchronous event handlers into this layer. When an update is called, I will bubble up my own event with my own derivation of the EventArgs class that contains the data the UI will need. I'll have a fairly coupled hooking of the UI to the infrastructure layer as it will consume events I fire off upon completion of an asynchronous data call.

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  • Usual hibernate performance pitfall

    - by Antoine Claval
    Hi, We have just finish to profile our application. ( she's begin to be slow ). the problem seems to be "in hibernate". It's a legacy mapping. Who work's, and do it's job. The relational shema behind is ok too. But some request are slow as hell. So, we would appreciate any input on common and usual mistake made with hibernate who end up with slow response. Exemple : Eager in place of Lazy can change dramaticly the response time....

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  • How do I convert from a possibly Windows 1252 'ANSI' encoded uploaded file to UTF8 in .NET?

    - by qqq123
    I've got a FileUpload control in an ASP.NET web page which is used to upload a file, the contents of which (in a stream) are processed in the C# code behind and output on the page later, using HtmlEncode. But, some of this output is becoming mangled, specifically the symbol '£' is output as the Unicode FFFD REPLACEMENT CHARACTER. I've tracked this down to the input file, which is Windows 1252 ('ANSI') encoded. The question is, How do I determine whether the file is encoded as 1252 or UTF8? It could be either, and How do I convert it to UTF8 if it is in Windows 1252, preserving the symbol £ etc? I've looked online but cannot find a satisfactory answer.

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  • Why do Lua arrays(tables) start at 1 instead of 0?

    - by AraK
    Hi, I don't understand the rational behind the decision of this part of Lua. Why does indexing start at 1? I have read(as many others did) this great paper. It seems to me a strange corner of a language that is very pleasant to learn and program. Don't get me wrong, Lua is just great but there has to be an explanation somewhere. Most of what I found(on the web) is just saying the index starts at 1. Full stop. It would be very interesting to read what its designers said about the subject. Note that I am "very" beginner in Lua, I hope I am not missing something obvious about tables.

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  • Running sites on "localhost" is extremeley slow.

    - by seanxe
    Hello all, Having real trouble using my local host to test sites. It runs extremely slow! Sometimes up to a minute to load a page. I'm using firefox and the sites i'm testing run fine on other developers in my office local machines/ on the production server. I've gone through the normal things :- Disabled IPv6 Not running in debug mood Put the site in the highest app pool (High Isolated) on IIS 6. Taking of firewalls etc. The problem only seems to occur when hitting pages which contain some form of .net code in the code-behind. Appreciate that this a little bit of a vague topic / stab in the dark but would appreciate any sort of advice - it's horrible waiting a minute each refresh to try out a change! Cheers, Sean.

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  • How to find scrollable elements in DOM using XPath?

    - by ak.
    Basically I need to find all elements on the page that have a scrollbar (vertical or horizontal) How to tell if an element has a scrollbar and can actually be scrolled? I found this code snippet on jsperf. Is it possible to capture the logic behind the code into and XPath expression? Or are there any other ways to check for scrollbars? Added: Just to explain what I'm trying to do: I'm developing extension for Firefox. Basically it introduces Vim-style mouseless shortcuts (I know there is Vimperator and Pentadactyl...). One of the features I'd like to implement is to allow the use to select the container that's scrolled with j/k keys. That's why I need to discover all scrollable elements on any given random page.

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  • Is MD5 really that bad?

    - by Col. Shrapnel
    Everyone says that MD5 is "broken". Though I have never seen a code that can show it's weakness. So, I hope someone of local experts can prove it with simple test. I have an MD5 hash c1e877411f5cb44d10ece283a37e1668 And a simple code to produce it $salt="#bh35^&Res%"; $pass="***"; echo $hash=md5($salt.$pass); So, the question is: 1. Is MD% really that bad? 2. If so, what's the pass behind the asterisks?

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