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• Is the XP VMM a bottleneck on a multi core machine?

  - by JeffV

  I have a dual Xeon hex core machine running an IO intensive application. (WinXP 32) I am seeing a hardware driver (1/2 user mode, 1/2 kernel, streaming data) that is using 6k delta page faults per second. When other applications load or allocate large amounts of memory the driver's hardware buffer gets an underrun (application not feeding it fast enough). Could this be because the kernel is only using one core to service page fault interrupts?

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• How can I make Firefox ignore Next/Prev-Buttons on the Keyboard?

  - by ThiefMaster

  My ThinkPad notebook has "next page" and "previous page" buttons right next to the cursor keys. While writing code (sometimes in textareas on pages such as StackOverflow) accidentally hitting one of these keys is very annoying - either you navigate away or you get the "do you really want to navigate way" prompt. I never use those keys anyway so I wonder if there's an option in Firefox to ignore those keys. An option to remap them globally or simply disable them would (OS: Windows 7) be fine, too.

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• How to Execute Base Class's ExtractPageData() Before Implementors's ExtractPageData()?

  - by DaveDev

  I have the following page public partial class GenericOfflineCommentary : OfflineFactsheetBase { } where OfflineFactsheetBase is defined as public class OfflineFactsheetBase : System.Web.UI.Page { public OfflineFactsheetBase() { this.Load += new EventHandler(this.Page_Load); this.PreInit += new EventHandler(this.Page_PreInit); } protected void Page_PreInit(object sender, EventArgs e) { if (Request.QueryString["data"] != null) { this.PageData = StringCompressor.DecompressString(Request.QueryString["data"]); this.ExtractPageData(); } } } OfflineFactsheetBase has the following virtual method: public virtual void ExtractPageData() { // get stuff relevant to all pages that impmement OfflineFactsheetBase } which is implemented in all pages that impmement OfflineFactsheetBase as follows: public partial class GenericOfflineCommentary : OfflineFactsheetBase { public override void ExtractPageData() { // get stuff relevant to an OfflineCommentary page. } } Currently, only GenericOfflineCommentary's ExtractPageData() is firing. How can I modify this to first run OfflineFactsheetBase's ExtractPageData() and then GenericOfflineCommentary's?

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• problem with application after moving from local to hosting server

  - by marcin_koss

  I have an application developed with CodeIgniter that works perfectly on my local server. After uploading it to the hosting server I've run into few issues that I can't figure out. I removed the index.php from URL by changing $config['index_page'] = "" in config.php file and adding rewriterule in .htaccess file. Everything worked fine on a local server. On hosting server the webstie wouldn't load until I reverted those changes to defaults. Now the strangest thing. I test the website and all pages load fine except of one. When I point to that page the browser responds with "Connection closed by remote server" (That's from Opera, other browser gave similar response). After closing the browser when I try to load the website again, now it won't even load any page showing me CodeIgniter's styled error "404 Page Not Found" What he heck?

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• Saving not cached offline images in Firefox

  - by Wroblewski

  I want to save the images from a page in Firefox that have been open for a couple of days. The problem is that neither the page nor the images are available anymore online. The images where dynamically generated and not cached. The only way I can think of is by making a screenshot and then cutting out each invidual image. Isn't there a better way of getting the data from the browsers memory?

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• Flash Overlapping HTML. CSS Problem In IE??

  - by Jascha

  HELP, this is a very unique problem and I can't for the life of me figure it out. My flash content is overlapping the HTML above it. This only happens if I've just launched IE after being restarted and goes away once I refresh the page. I even added a jQuery $(document).ready function that sets a margin between the html and the flash content to add 1px of space when the page is loaded. It's so hard to figure out, because once I refresh the page, it goes away. Any input GREATLY appreciated. Here is the site. http://www.californiaremodels.com (This only happens in IE) here is a screen shot of the problem.

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• Is count(*) really expensive ?

  - by Anil Namde

  I have a page where I have 4 tabs displaying 4 different reports based off different tables. I obtain the row count of each table using a select count(*) from <table> query and display number of rows available in each table on the tabs. As a result, each page postback causes 5 count(*) queries to be executed (4 to get counts and 1 for pagination) and 1 query for getting the report content. Now my question is: are count(*) queries really expensive -- should I keep the row counts (at least those that are displayed on the tab) in the view state of page instead of querying multiple times? How expensive are COUNT(*) queries ?

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• WebClient - The remote server returned an error: (403) Forbidden.

  - by daniel

  Opening a public page from browser works fine. Downloading same page using WebClient throws - (403) Forbidden. What is going on here ? Here is quick copy/paste example (used on console app) to specific page on web: try { WebClient webClient = new WebClient(); string ss = webClient.DownloadString("http://he.wikisource.org/wiki/%D7%A9%D7%95%D7%9C%D7%97%D7%9F_%D7%A2%D7%A8%D7%95%D7%9A_%D7%90%D7%95%D7%A8%D7%97_%D7%97%D7%99%D7%99%D7%9D_%D7%90_%D7%90"); } catch (Exception ex) { throw; }

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• Getting Top (starting no , Ending no) rows from sqlserver

  - by Krishna Thota

  I'm using Grid view in my asp.net page and I'm fetching data from SQL Server and placing in my grid view. Now my problem is, I'm using paging and placing 50 rows per page in Grid view. I would like to fetch top 50 rows from database in the start up and bind to the Grid View and when i click on next page, then again go to the database and fetch Second Top 50 rows and bind to GV. and this process hasto continue until last row is fetched from Database. Can you tell me How to write Query in achieving this??

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• ASP.NET Custom Control With A Property That Is An Interface

  - by user129674

  I want to have a property on my custom control that is an interface type. For example: [ ToolboxData("<{0}:MyTextBox runat=server></{0}:MyTextBox"), ParseChildren(true, "Validation") ] class MyTextBox : WebControl { [ Category("Behavior"), Description("The validation to use"), DesignerSerializationVisibility(DesignerSerializationVisibility.Content), PersistenceMode(PersistenceMode.InnerDefaultProperty) ] public IValidation Validation { get; set; } } Then when I go to use my control in a web form I would like to be able to do: <my:MyTextBox ID="txt" runat="server"> <my:FancyValidator /> </my:MyTextBox> That way I will be able to define one class that could use any number of validators. When I try and do this now, I end up with an error saying: Type 'IValidator' does not have a public property named 'FancyValidator' What do I need to do to make this work? Thanks!

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• Filter---after setting attribute--->Servlet---after getting and setting the attribute---->Jsp How do I do this?

  - by Y.E.P

  This is what I want to do : A servlet is called.Before a servlet is called , the request is intercepted by a filter. Filter gets some details out from the request,sets them as an attribute and the forwards it to a servlet via chain.doFilter(request,response). Request finally reaches the servlet. Servlet gets the attribute set by the filter before and sets a new attribute by another name. Then it forwards it to some jsp page where the page gets the attribute and processes it. How do I do this ? I know how to write a filter and a servlet but how do I forward it to a jsp page from the servlet or is there any other way to achieve this ?

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• Fluent mapping help

  - by Matt Thrower

  Hi, This is probably a very simple question but I'm new to nHibernate and I'm having trouble working this out. I have a Page object, which can have many Region objects. I also have a Workflow object. Page and Region objects both have a relationship to Workflow and it's this double association that I'm having trouble with. The PageMap has HasMany(Function(x) x.Regions).Cascade.All() And the RegionMap has: References(Function(x) x.Page) And this all seems to work. But how do I define the relationship between Workflow and these two objects?

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• Wrong extraction of .attr("href") in IE7 vs all other browsers?

  - by EmKay

  Can it really be true that the attr("href") command for a link is handled very different in IE7 in comparison to all other browsers? Let's say I have a page at http://example.com/page.html and I have this HTML: <a href="#someAnchor" class="lnkTest">Link text</a> and this jQuery: var strHref = $(".lnkTest").attr("href"); Then in IE7 the value of the strHref variable will be "http://example.com/page.htm#someAnchor" but in other browsers it will be "#someAnchor". I believe that the last mentioned case is the most correct one, so is it just a case of IE7 being a bad boy or is it a bug in jQuery?

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• Inconsistent Session data from IE - cached sessions???

  - by pedalpete

  I'm trying to prevent some basic click-fraud on my site, and am building links based on session time data. Everything works in FF, but in IE the information I'm storing in the session is somehow being changed. When I load up the main page, I set my session variables like this session_start(); $_SESSION['time']=$time(); I'm out putting the session value into the page, so I get something like 1275512393. When the user clicks on a link, I send an ajax request, and that page is returning the session which I am putting into an alert. session_start(); echo $_SESSION['time']; die(); The alert is returning 1275512422. Only in IE is the $_SESSION['time'] being returned different from the original $_SESSION['time'] It doesn't appear that this is a caching issue, as the times are always VERY near each other, and the second one is always after the first, but I'm not positive.

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• Can you tell me why my webpage displays differently in IE and how to fix it.

  - by b-rad

  I've been browsing through all of the CSS related cross-browser questions trying to troubleshoot my IE styling issues with no luck. Can anyone tell me how to fix my homepage styles so that it displays the same in IE as it currently does in Firefox? I've used Firebug (probably why it looks good in Firefox) but I can't find any tools for IE that will let me change the stylesheet real time. I'm just as interested in the process of figuring out this answer as I am in the answer itself so posting the steps you took to figure it out would be beneficial. (want to be able to do this myself next time!!!) Website is AppQandA.com. Scroll down to the bottom in IE and notice the footer. It's not like this on every page.....just the main page and the questions page.

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• How to change security configutarion in IE8 for Intranet pages, such that Javascript can close a Win

  - by Martín Fixman

  I am developing a system that uses a little Internet page as a front-end for the whole program. Since I need to use ActiveX (sigh), the page must work on Internet Explorer. However, after some actions have been done the page needs to close itself. Using window.close() on Javascript it works, but before closing it prompts the user if it wants to close the Window. The ideal would be that it closes automatically. Is there any way to make IE8 (changing an option on the browser, not a code-only solution) not to prompt before closing the Window?

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• Inconsistent Behavior From Declared DLL Function

  - by Steven

  Why might my GetRawData declared function return a correct value when called from my VB.NET application, but return zero when called from my ASP.NET page? The code is exactly the same except for class type difference (Form / Page) and calling event handler (Form1_Load, Page_Load). Note: In the actual code, #DLL# and #RAWDATAFILE# are both absolute filenames to my DLL and raw data file respectively. Note: The DLL file was not created by Visual Studio. Form1.vb Public Class Form1 Declare Auto Function GetRawData Lib "#DLL#" (ByVal filename() As Byte, _ ByVal byteArray() As Byte, _ ByVal length As Int32) As Int32 Private Sub Form1_Load(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles MyBase.Load Dim buffer(10485760) As Byte Dim msg As String, length As Integer = 10485760 Dim filename As String = "#RAWDATAFILE#" length = GetRawData(Encoding.Default.GetBytes(filename), buffer, length) Default.aspx.vb Partial Public Class _Default Inherits System.Web.UI.Page Declare Auto Function GetRawData Lib "#DLL#" (ByVal filename() As Byte, _ ByVal byteArray() As Byte, _ ByVal length As Int32) As Int32 Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load Dim buffer(10485760) As Byte Dim msg As String, length As Integer = 10485760 Dim filename As String = "#RAWDATAFILE#" length = GetRawData(Encoding.Default.GetBytes(filename), buffer, length)

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• Stretch image to fill div, but not skew

  - by z0mbieParade

  I'm trying to make an image stretch to fit inside a div. However I want it to overflow so that the entire div is filled. The div resizes with the page. I want an effect similar to the jQuery bgstretcher plugin (http://www.ajaxblender.com/bgstretcher-2-jquery-stretch-background-plugin-updated.html) , but I cannot use that plugin because I'm already using it for the background image on the page, and it seems to not work when you try and activate multiple instances of it. So what I'm asking is for some sort of simple jQuery function that resizes an image to completely fill a div with overflow hidden, so that there are no gaps, but without skewing the image. Edit: http://jsfiddle.net/R7UCZ/ That's sort of what I'm after, but I want the image to fill the entire div without skewing. If the image goes out of the div a bit, that's fine, but I need it to resize with the div, which resizes with the page, both height and width.

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• Dropdown menu getting hidden by images

  - by Bob

  I have a set of dropdown menus across the top of a web page. Below is text and some images. When I hover over the top of each menu the menu then expands below as expected but while it overlaps any text on the page it is hidden behind any images. I set the z-index to 9999 and the position is set to absolute. I found if I lower the opacity of the images to say 0.6 then the menu will overlap it. So one solution would be to detect when the menu is being hovered over and then in JavaScript or JQuery temporarily reduce the opacity of the rest of the page until the cursor moves off the menu. If so I'm not sure how to do that but is that the best approach?

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• Can I send a POST form in an encoding other than of its body?

  - by Daziplqa

  Hi gang, I've Html page that looks like: <HTML> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'> <BODY onload='document.forms[0].submit();'> <form name="form" method="post" action="/path/to/some/servlet"> <input type="hidden" name="username" value="??"> <!-- UTF-8 characters --> </form> </BODY> </HTML> As you can see, the content of this page is UTF-8, but I need to send it with GB2312 character encoding, as the servlet that I am sending this page to expects from me GB2312. Is this a valid scenario? Because in the servlet, I couldn't retive these chines characters back using a filter that sets the character encoding to GB2312!! Please help

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• ASP.MVC ModelBinding Behaviour

  - by OldBoy

  This one has me stumped, despite the numerous posts on here. The scenario is a basic MVC(2) web application with simple CRUD operations. Whenever the edit form is submitted and the UpdateModel() called, an exception is thrown: System.Data.Linq.ForeignKeyReferenceAlreadyHasValueException was unhandled by user code This occurs against a DropDownList value which is a foreign key on the entity table. However, there is another DropDownList list on the form, representing another foreign key, which does not throw the error (unsurprisingly). Changing the property values manually inside the Edit Action: Recipe recipe = repository.GetRecipe(int.Parse(formValues["recipeid"])); recipe.CategoryId = Convert.ToInt32(formValues["CategoryId"].ToString()); recipe.Page = int.Parse(formValues["Page"].ToString()); recipe.PublicationId=Convert.ToInt32(formValues["PublicationId"].ToString()); Allows the CategoryId and Page properties to be updated, and then the error is thrown on the PublicationId. All of the referential integrity is checked an the same in the db and the dbml. Any light shed on this would be most welcome.

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• host the silverlight application in a new website(default.aspx)

  - by Piyush

  when I create new silverlight project it asks Host the Silverlight application in a new Website followed by two fields- 1. Name: projectName.web 2. Type: ASP.Net Web Application Project OR Asp.Net Web Site when I uncheck this checkbox VS doen not create projectName.web project but when I check this VS creates two projects 1. projectName--contains .xaml pages 2. projectName.web-- contains default.aspx page.................. So my question is - Is it must to host silverlight app from a new website(default.aspx page) OR cant we directly host .xaml page? ProjectName.Web project is req.?? –

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• H1 tags, SEO and semantics

  - by dazhall

  Hi guys, I'm using the H1 tag in my document as the main title, as you do. The text in the H1 is the title of the company, which needs to be shown on every page. I'm using the H2 tag for the title of the main content on each page. So the H1 is the same on every page, and the H2 changes. I know that a lot of sites use the H1 to do what I'm doing with the H2, am I losing out by not doing this? I know that semantically I can't make the H1 into a H2 and vice versa, so I'm wondering what the best option is. Does it matter that my H1 is always the same? Any advice is appreciated! Thanks! Darren.

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• How to Execute Base Class's Method Before Implementors's Method?

  - by DaveDev

  I have the following page public partial class GenericOfflineCommentary : OfflineFactsheetBase { } where OfflineFactsheetBase is defined as public class OfflineFactsheetBase : System.Web.UI.Page { public OfflineFactsheetBase() { this.Load += new EventHandler(this.Page_Load); this.PreInit += new EventHandler(this.Page_PreInit); } protected void Page_PreInit(object sender, EventArgs e) { if (Request.QueryString["data"] != null) { this.PageData = StringCompressor.DecompressString(Request.QueryString["data"]); this.ExtractPageData(); } } } OfflineFactsheetBase has the following virtual method: public virtual void ExtractPageData() { // get stuff relevant to all pages that impmement OfflineFactsheetBase } which is implemented in all pages that impmement OfflineFactsheetBase as follows: public partial class GenericOfflineCommentary : OfflineFactsheetBase { public override void ExtractPageData() { // get stuff relevant to an OfflineCommentary page. } } Currently, only GenericOfflineCommentary's ExtractPageData() is firing. How can I modify this to first run OfflineFactsheetBase's ExtractPageData() and then GenericOfflineCommentary's? edit: I'm trying to avoid having to call base.ExtractPageData() in every implementor. Is this possible?

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• How to export javascript generated report to pdf?

  - by Parhs

  Hello... I made a reporting engine with javascript for my project... The problem is with printing.. Although with page-break and css i can produce a good looking report, i want to export that report to a pdf in order to be printed better without ,the url,page title and other stuff that browsers add. Note in Chrome there isnt page setup!!! I am using java for server side. i think sending via ajax the Html of the report somehow and return a url for the pdf report maybe... i am looking for a good tool for this thank you

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