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• How can I detect client-side when a page load is the result of an AJAX history point?

  - by Nick

  I'm trying to prevent a "flicker" effect that is occurring on my ASP.NET page which occurs when a user navigates to the page via the browser back button after having navigated away from it. The reason for the flicker is that I'm using an Update Panel which has some content in there on the initial page-load. As a result, when the page is loaded via a back button that initial content is shown very briefly before it is updated with the correct History-aware data. In order to overcome this I am intending on having the updatepanel hidden (display: none) on inital page load and then show it as long as we don't have any history to deal with. The problem is that I can't find out what to check to determine if there's any history. I can see that the Sys.Application has a _history member but when I'm checking it on page init it is null each time. Does anyone know what I should be checking to determine if there's history to deal with for a page load client-side? And at what point to do it?

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• Hidden features of WPF and XAML?

  - by Sauron

  Here is a large number of hidden features discussed for variety of languages. Now I am curious about some hidden features of XAML and WPF? One I have found is the header click event of a ListView <ListView x:Name='lv' Height="150" GridViewColumnHeader.Click="GridViewColumnHeaderClickedHandler"> The GridViewColumnHeader.Click property is not listed. Some of relevant features so far: Multibinding combined with StringFormat TargetNullValue to bindings TextTrimming property Markup extensions Adding Aero effect to Window Advanced "caption" properties XAML Converters See also: Hidden features of C# Hidden features of Python Hidden features of ASP.NET Hidden features of Perl Hidden features of Java Hidden features of VB.NET Hidden features of PHP Hidden features of Ruby Hidden features of C And So On........

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• Why can you reference an imported module using the importing module in python

  - by noam

  I am trying to understand why any import can be referenced using the importing module, e.g #module master.py import slave and then >>>import master >>>print master.slave gives <module 'slave' from 'C:\Documents and Settings....'> What is the purpose of the feature? I can see how it can be helpful in a package's __init__.py file, but nothing else. Is it a side effect of the fact that every import is added to the module's namespace and that the module's namespace is visible from the outside? If so, why didn't they make an exception with data imported from other modules (e.g don't show it as part of the module's namespace for other modules)?

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• HOWTO and best working installation (MSI) chainer +/ bootstrapper

  - by davidovitz

  Hi, Our product has several products that customer can install created as separate installation packages (MSI). We have a requirement to have single package for the installation that will: Show one UI with progress Allow user to choose which features/packages to install Have ability to constrain one feature to another (e.g removing or adding effect other) Support single elevation (UAC) nice to have ability to auto update (not must) support command line + silent installation the package should be built out of the isolated installations (chain them) raise error / messages for missing prerequisites Support patches over time and major upgrades Today we do almost all of the above using MSI with nested installations which is bad practice and we face too many issues in our solution. i know that there are several bootstrappers out there (m$ generic bootstrapper which i think is not good, BURN is the WIX version which is not mature enough) Do you know of other? that work and tested already ? What is the best method to do (without unification of the MSI into a single MSI)

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• Render tooltip on disabled HTML Button.

  - by giulio

  I have a HTML button. I have tried to render a tooltip on it based on the "title" attribute of the button and it doesn't render. Mainly because it's disabled. I then tried wrapping the button in a span and setting the "title" attribute of the span. Hovering over the button that is wrapped in the span still has no effect. The tooltip will render on any other part of the span that is not part of the button tag. Like if i put some text in the span as well as the button, hovering over the text produces the tooltip, but if you hover over the button it will not render. So: how can I display a tooltip for a disabled button?

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• [Web] Eventlistener for form input on iphone?

  - by ketenshi

  I'm playing around with jQTouch to create a web app on the iPhone. I'm using the scrolling extension to create the effect of a fixed toolbar on the top of the page while still able to scroll the rest of the page via a scrollable div. Everything works fine except for when a user pulls up the keyboard in order to fill in form elements in the scrollable div. The whole body is pushed to top and the ugly url bar is shown. Is there a way to prevent this?

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• Delphi TerminateThread equivalent for Android

  - by Martin

  I have been discussing a problem on the Indy forums related to a thread that is not terminating correctly under Android. They have suggested that there may be an underlying problem with TThread for ARC. Because this problem is holding up the release of a product a work around would be to simply forcibly terminate the thread. I know this is not nice but in this case I cant think of a side effect from doing so. Its wrong but its better than a deadlocked app. Is there a way to forcibly terminate a thread under Android like TerminateThread does under windows? Martin

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• Only apply the property till the text, not whole the line

  - by Santosh

  Here is my the dummy test. Here is the HTML stuff: <h1> Header </h1> Here is the CSS stuff: body { background: pink; } h1 { background-color: #454545; } The webpage is rendered something like this:                      As you can se in this image, I applied the property to the <h1>, but the whole line has its effect. What I want is, the gray background till the word "Header", not more than that (Background color is just an example. This is not only the case.).

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• Why does Google's Closure Compiler leave a few unnecessary spaces or line breaks?

  - by Bungle

  I've noticed that every time I use Google's Closure Compiler Service, it leaves a few unnecessary spaces in the compiled code presented on the right-hand side of the page. These correspond to line breaks in the hosted version of the compiled code. For example (note the line breaks, each of which seems unnecessary): http://troy.onespot.com/static/stack_overflow/closure_spaces.js To date, I've just been removing them manually, but I'm curious why they're there. Is it to limit the line length of the hosted version of the code to make it more readable? Could the compiler be smart enough to leave or insert those intentionally to maximize GZIP compression efforts? I know that they have a trivial effect on the file size, but with so much effort going into minifying every last byte in the source script, it's counterintuitive why they're there.

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• SimpleModal, How to close pop up window with animation

  - by bhsstudio

  Hi, I am very new to jQuery. I have a questino about the SimpleModal. I am trying to close the pop up window with animation effect, but failed. Here is my code. $('#btnClose').click(function(e) { // Closing animations $("#content").modal({ onClose: function(dialog) { dialog.data.fadeOut('slow', function() { dialog.container.hide('slow', function() { dialog.overlay.slideUp('slow', function() { $.modal.close(); }); }); }); } }); }); <div id="content" style="display: none;"> <h1>Basic Modal Dialog</h1> <a href='#' id="btnCloset">Close</a> </div> When I click on the "Close" link, nothing happens. Any help please? Thank you very much!

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• ASP.NET MVC as a service host for SOA like architecture

  - by Delucia

  I'm creating a distributed application that includes a lot of services and I'm looking for the technology that allows me to create and manage a lot of services easily. I know managing and deploying windows services is not fun. I'm thinking of using ASP.NET MVC as service host of my services where each controller action becomes essentially a service and I can communicate with a service via simple HTTP request and responses and not have to deal with complexity if i use something like WCF. Services need to be isolated and asp.net requests are isolated as far as i know, i.e. if a request throws an exception it will not effect other running requests. But I still have questions about the management of the services. How will it be possible to see which services are running, stopping and resuming services. Also ASP.NET MVC are passive, i.e. they only do something upon a request but what if i want to service that initiates work by itself?

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• getting JSlider bar to move on mouse click event

  - by Aly

  Hi, I have a JSlider which shows bet sizes (for a poker game) I am trying to achieve the effect that when a mouse click occurs the slider jumps forward by a bet amount (i.e. a big blind amount) rather than just incrementing by one. If the mouse click happens to the left of the bar i want it to decrement by a fixed amount else increment. I looked into attaching a mouse listener, but do not know how I can use the event to find out on what side of the bar the mouse was clicked. Any ideas?

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• Forcing a page to load itself in another page's iframe

  - by bufferz

  I'm a fairly inexperienced web designer learning css/html on the fly for a company's web site. I want to keep menus, banners, etc in one document so I don't have to repeat updates across many documents. My solution was to make an index.aspx file with the menus and headers, then have a simple iframe for content. This works quite well and updates easily. the format is: www.site.com/index.aspx?page=page1.htm www.site.com/index.aspx?page=page2.htm The problem -- Google is indexing my iframe'd pages and linking to them directly: www.site.com/page1.htm www.site.com/page2.htm How can I set up redirects to page1.htm forwards to index.aspx?page=page1.htm without creating a "hall of mirrors" effect inside the original iframe?

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• restrict access to page to only be allowed from a certain page

  - by controlfreak123

  This question is similar to the one i asked here. But its related because I want to achieve the same effect. I want the users to be restricted to only accessing other pages on the site through the main page. The first page contains a frame for navigation and then a frame for content of the page they navigate to. I want it to be setup so that the only way they can access the content pages is by using this main page. So if the main page is http://intranet/index.html then they cannot get to http://intranet/other_page.html without using the link provided in index.html. Is this possible and if so what would the best technique be? I'm using apache to serve the site and I have php and javascript available.

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• browser ctrl-f find and non-visible text

  - by David Pilling

  Can the browser feature of contrl+F to find text be integrated with text in popup windows. I'd like to have some scientific reference information given when someone hovers over a species name in a web page. Generating the popup, tooltip style text is no problem, the problem is that anyone using Ctrl+F won't be able to find it, or if I position the text out of view when not required, it will be found but be invisible. The same sort of effect applies to "accordion" style expanding text areas. I'm looking for some sort of event generated when find is highlighting a result.

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• VS 2008 SP1 text editor flickering over remote desktop connection

  - by AltairDusk

  I am connecting from a Windows 7 x64 machine to my dev machine running Windows XP SP3 using the built in remote desktop client. For most apps it works fine with no problems, for Visual Studio whenever I am typing the entire text editor keeps redrawing. I stumbled across this question: http://stackoverflow.com/questions/873849/vs-2008-sp1-over-remote-desktop-constant-repainting and I have tried all of the suggestions in it to no effect, including resetting all VS settings back to default then disabling the suggested settings. Has anyone found a reliable solution to this? I feel like I'm going insane with the screen constantly refreshing when I'm working from home. Some additional information: Remote Desktop is set to run at 1680x1050, 15bit color, Low-speed broadband for the experience setting with all but Visual styles and Persistent bitmap caching unchecked. Visual Studio 2008 Team System is running on the dev machine with Service Pack 1 and Power Commands installed.

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• ASCIIMath and TiddlyWiki

  - by Space_C0wb0y

  I use TiddlyWiki for work-notes. I already have pretty large wiki, but now I want to add math-support. As far as I understand what is written here, all I would have to do to use ASCIIMathML in my wiki would be including the script ASCIIMathML.js. Doesn't work (no effect at all). Then I found this plugin for TiddlyWiki, but when I import it to my wiki, it gives me an error in one of the regexp strings. When I download that wiki directly, ASCIIMath does not work anymore, even though I have the script in the same directory. Does anyone have a solution available, how I can add ASCIIMath to my existing TiddlyWiki?

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• JavaScript: 'foo.value' not working in IE?

  - by pete

  Hi! A few hours ago, I was instructed how to style a specific textarea with JS. The following piece of code (thanks again, Mario Menger) works like a charm in Firefox but unfortunately nothing happens in Internet Explorer (7 tested only so far). var foo = document.getElementById('HCB_textarea'); var defaultText = 'Your message here'; foo.value = defaultText; foo.style.color = '#888'; foo.onfocus = function(){ foo.style.color = '#000'; if ( foo.value == defaultText ) { foo.value = ''; } }; foo.onblur = function(){ foo.style.color = '#888'; if ( foo.value == '' ) { foo.value = defaultText; } }; I've already tried to replace 'value' by 'innerHTML' (for IE only) but to no effect. Any suggestions? TIA

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• Javascript won't overwrite CSS display property.

  - by Sorin Buturugeanu

  I have a DIV that is set do display:none from CSS and it's supposed to be made visible (style.display = '';) at some point by javascript. The problem is that if I put the display:none in the CSS file the javascript does not seem to have any effect. I have also tried changing the background color instead of the display property, and that works. I have the code running here (just press the edit link). I really thank you for taking the time to look into this.

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• String replacement in PHP

  - by [email protected]

  This is my first question on this wonderful website. Lets say I have a string $a="some text..%PROD% more text" There will be just one %..% in the string. I need to replace PROD between the % with another variable content. So I used to do: $a = str_replace('%PROD%',$var,$a); but now the PROD between % started coming in different cases. So I could expect prod or Prod. So I made the entire string uppercase before doing replacement. But the side effect is that other letters in the original string also became uppercase. Someone suggested me to use regular expression. But how ? Thanks, Rohan

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• typeid , dynamic casting (upcast) and templates

  - by David

  Hello, I have few questions regarding dynamic casting , typeid() and templates 1) How come typeid does not require RTTI ? 2) dynamic_cast on polymorphic type: When I do downcast (Base to Derive) with RTTI - compilation passes When RTTI is off - I get a warning (warning C4541: 'dynamic_cast' used on polymorphic type 'CBase' with /GR-; unpredictable behavior may result) When I do upcast (Derive to Base), with or without RTTI - compilation passes smoothly What I don't understand is why when I do upcast and RTTI is off - I don't get any warning/error! 3) dynamic_cast on NON polymorphic type: When I do downcast with or without RTTI - compilation fails (error C2683: 'dynamic_cast' : 'CBase' is not a polymorphic type) BUT When I do upcast with or without RTTI - compilation passes smoothly. How come on upcast on NON polymorphic type passes w/o RTTI ? 4) Does 'inline' in front of a template function has any effect, i.e. when the compiler compiles the function and see it is 'inline' it will actually treat the function as inline or it is ignored? Thank you very much for the assistance David

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• Why would you need to run regasm and caspol on a .net component more than once?

  - by Craig Johnston

  Why would you need to run regasm and caspol on a .NET component more than once? I have a COM client that uses a .NET component residing on another machine. Consequently I need to run regasm and caspol on this .NET component. What could cause there to be the need to do this again on the same machine to the same component? Is the effect of regasm and caspol only temporary? Or can I assume that someone has reset or cleared something on a machine if I am having to do this again?

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• Is it legal to stub the #class method of a Mock object when using RSpec in a Ruby on Rails applicati

  - by MiniQuark

  I would like to stub the #class method of a mock object: describe Letter do before(:each) do @john = mock("John") @john.stub!(:id).and_return(5) @john.stub!(:class).and_return(Person) # is this ok? @john.stub!(:name).and_return("John F.") Person.stub!(:find).and_return(@john) end it.should "have a valid #to field" do letter = Letter.create!(:to=>@john, :content => "Hello John") letter.to_type.should == @john.class.name letter.to_id.should == @john.id end [...] end On line 5 of this program, I stub the #class method, in order to allow things like @john.class.name. Is this the right way to go? Will there be any bad side effect? Edit: The Letter class looks like this: class Letter < ActiveRecord::Base belongs_to :to, :polymorphic => true [...] end I wonder whether ActiveRecord gets the :to field's class name with to.class.name or by some other means. Maybe this is what the class_name method is ActiveRecord::Base is for?

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• RichTextBox doesn't update caret position correctly

  - by shadeMe

  I have a handler consuming the keyDown event of a WinForms RTB, that has the following code: GetTextAtLoc(RTB->SelectionStart); // selects some text at the caret's position RTB->SelectedText = "SomeOfMyOwn"; GetTextAtLoc(RTB->SelectionStart); // selects the replacement string RTB->SelectionStart += RTB->SelectionLength - 1; While this code seems to do its job (SelectionStart/Length properties are updated correctly), the caret doesn't move to the end of the new string - It says right where it was at the time of GetTextAtLoc's first call. Redrawing the textbox does seem to have any effect either.

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• C# MySQL Lost Connection

  - by Adam

  Hi. I have C# application and I'm using MySQL database. Everything seems to be fine except one thing. Our computer network is little bit unstable. When I'm trying to execute query and the computer simultaneously loses connection to the mysql server (I'm simulating this situation by unplugging the network cable from computer which is mysql server), the program is trying to do something for long time (tens seconds). I would like to specify something like timeout which ends the query by exception or something similar. I tried to add timeout parameters to connection string but with no effect (I've used ConnectionTimeout and DefaultCommandTimeout). Is there any other way to identify lost connection after few seconds? Thank you Adam P.S. Sorry for my english, I'm not native speaker.

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