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  • Why better isolation level means better performance in MS SQL Server

    - by Oleg Zhylin
    When measuring performance on my query I came up with a dependency between isolation level and elapsed time that was surprising to me READUNCOMMITTED - 409024 READCOMMITTED - 368021 REPEATABLEREAD - 358019 SERIALIZABLE - 348019 Left column is table hint, and the right column is elapsed time in microseconds (sys.dm_exec_query_stats.total_elapsed_time). Why better isolation level gives better performance? This is a development machine and no concurrency whatsoever happens. I would expect READUNCOMMITTED to be the fasted due to less locking overhead.

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  • C#: Windows Forms: What could cause Invalidate() to not redraw?

    - by Rosarch
    I'm using Windows Forms. For a long time, pictureBox.Invalidate(); worked to make the screen be redrawn. However, it now doesn't work and I'm not sure why. this.worldBox = new System.Windows.Forms.PictureBox(); this.worldBox.BackColor = System.Drawing.SystemColors.Control; this.worldBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle; this.worldBox.Location = new System.Drawing.Point(170, 82); this.worldBox.Name = "worldBox"; this.worldBox.Size = new System.Drawing.Size(261, 250); this.worldBox.TabIndex = 0; this.worldBox.TabStop = false; this.worldBox.MouseMove += new System.Windows.Forms.MouseEventHandler(this.worldBox_MouseMove); this.worldBox.MouseDown += new System.Windows.Forms.MouseEventHandler(this.worldBox_MouseDown); this.worldBox.MouseUp += new System.Windows.Forms.MouseEventHandler(this.worldBox_MouseUp); Called in my code to draw the world appropriately: view.DrawWorldBox(worldBox, canvas, gameEngine.GameObjectManager.Controllers, selectedGameObjects, LevelEditorUtils.PREVIEWS); View.DrawWorldBox: public void DrawWorldBox(PictureBox worldBox, Panel canvas, ICollection<IGameObjectController> controllers, ICollection<IGameObjectController> selectedGameObjects, IDictionary<string, Image> previews) { int left = Math.Abs(worldBox.Location.X); int top = Math.Abs(worldBox.Location.Y); Rectangle screenRect = new Rectangle(left, top, canvas.Width, canvas.Height); IDictionary<float, ICollection<IGameObjectController>> layers = LevelEditorUtils.LayersOfControllers(controllers); IOrderedEnumerable<KeyValuePair<float, ICollection<IGameObjectController>>> sortedLayers = from item in layers orderby item.Key descending select item; using (Graphics g = Graphics.FromImage(worldBox.Image)) { foreach (KeyValuePair<float, ICollection<IGameObjectController>> kv in sortedLayers) { foreach (IGameObjectController controller in kv.Value) { // ... float scale = controller.View.Scale; float width = controller.View.Width; float height = controller.View.Height; Rectangle controllerRect = new Rectangle((int)controller.Model.Position.X, (int)controller.Model.Position.Y, (int)(width * scale), (int)(height * scale)); // cull objects that aren't intersecting with the canvas if (controllerRect.IntersectsWith(screenRect)) { Image img = previews[controller.Model.HumanReadableName]; g.DrawImage(img, controllerRect); } if (selectedGameObjects.Contains(controller)) { selectionRectangles.Add(controllerRect); } } } foreach (Rectangle rect in selectionRectangles) { g.DrawRectangle(drawingPen, rect); } selectionRectangles.Clear(); } worldBox.Invalidate(); } What could I be doing wrong here?

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  • game development xna/unity3d

    - by nir143
    hi,i am want to build some games,not something big like mmorpg ,games like snake and similar,maybe in future i would like to make a progress. i built "pong" with xna before 3 month and left it without any progression. now i want program games again and i search on the internet and got to 2 final best options xna/unity3d. which is better if i know c#? tyvm.

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  • Destructuring assignment problem

    - by Eli Grey
    Why does for ([] in iterable); work fine but [void 0 for ([] in iterable)] throw a syntax error for invalid left-hand assignment? For example, I would expect the following code to work, but it doesn't (the assertion isn't even done due to the syntax error): let (i = 0, iterable = (i for (i in [1, 2, 3, 4]))) { for ([] in iterable) i++; console.assertNotGreater([void 0 for ([] in iterable)].length, i); }

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  • MSN like box for Ad rotation.

    - by Muhammad Umar Siddique
    Hi Everyone. I want to create a JavaScript based box much like the one found on MSN or AOL with the navigational buttons. Box content must be spider-able by search engines. On MSN you can find the box near top left corner. Note this box contains links and images. Any idea how to implement this ? Thanks.

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  • Flex3 Linechart points are too close to the edge

    - by Marcus Blankenship
    I have a Flex3 LineChart component using an CircleItemRenderer and the datapoints are being cut off because they are too close to the edge. Here's what it looks like: http://img29.imageshack.us/img29/3850/chartx.png As you can see, the circles on the left and right sides are being cut off. How can I make the LineSeries area, plus the horizontal labels, narrower so it fits in the chart area? Thanks!

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  • UISwitch not tapped on right area

    - by beryllium
    I placed UISwitch on main view. Now I try change state. But the state changed only when I touch on the left side of the UISwitch. and never on the right. For example in Settings App the airplane mode chanhed any of those ways. Can anybody help me?

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  • What's the best way to trim std::string

    - by Milan Babuškov
    I'm currently using the following code to right-trim all the std::strings in my programs: std::string s; s.erase(s.find_last_not_of(" \n\r\t")+1); It works fine, but I wonder if there are some end-cases where it might fail? Of course, answers with elegant alternatives and also left-trim solution are welcome.

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  • quicktime movie layering issues

    - by DanC
    I have a site (link below) where the clients work displays on a long horizontal page. The menu is fixed on the left hand side and the images disappear under the menu when scrolling across. The client has now uploaded quicktime movies which do not go under the menu like the images but scroll over the menu. http://www.calebchurchill.com/projects/horny_dog/ I have tried to sort this using z-index but am so far been unsuccessful. Any ideas?

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  • Problem applying data annotation in asp.net mvc2

    - by Fraz Sundal
    Im facing problem when trying to apply data annotation. In my case im passing FormCollection in controller [HttpPost] public ActionResult Create(string Button, FormCollection collection) { if (ModelState.IsValid) { } else { } } and in ModelState.IsValid condition always have true value. Although i have left some blank fields in View. Also EnableClientValidation() is also applied in View for client side validation but its not working. what may be the problem

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  • How do setBounds in Google Maps API v2?

    - by Matthew Lock
    I'm upgrading some code written for Google Maps API v2, and I wish to set the bounds of the map (top, left, bottom, right), rather than the centre. I notice that there's a GMap2.getBounds but I can't seem to find a method which allows me to set the bounds. How can I do this in Google Maps?

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  • Basic Recursion, Check Balanced Parenthesis

    - by pws5068
    Greetings all, I've written software in the past that uses a stack to check for balanced equations, but now I'm asked to write a similar algorithm recursively to check for properly nested brackets and parenthesis. Good examples: () [] () ([]()[]) Bad examples: ( (] ([)] Suppose my function is called: isBalanced. Should each pass evaluate a smaller substring (until reaching a base case of 2 left)? Or, should I always evaluate the full string and move indices inward?

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  • SQL Server cast fails with arithmetic overflow

    - by Jamie Ide
    According to the entry for decimal and numeric data types in SQL Server 2008 Books Online, precision is: p (precision) The maximum total number of decimal digits that can be stored, both to the left and to the right of the decimal point. The precision must be a value from 1 through the maximum precision of 38. The default precision is 18. However, the second select below fails with "Arithmetic overflow error converting int to data type numeric." SELECT CAST(123456789 as decimal(9,0)) SELECT CAST(123456789 as decimal(9,1))

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  • ASP.NET/Vb.net: How to create a frame after an image is uploaded ?

    - by stighy
    Hi guys, i would like to create a fixed size frame for user photos uploaded. I've tought: i, can create a fixed sized image (200 width x 600 height for example), with my personal frame (top, left, bottom, right element graphics) , and in the center a transparency. Ok, but i don't know how to merge the photo into the frame and save the new photo format. Does anybody have some piece of code to help me ? Thank you!

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  • WPF XAML ComboBox Width

    - by griegs
    I have the following xaml with all the binding removed; <StackPanel Grid.Row="2" Grid.Column="1" Orientation="Horizontal" HorizontalAlignment="Left" Height="20"> <ComboBox x:Name="ddlDay" Width="30"/> If I set the width of the combobox to 200 it works but if I set it to 50 it doesn't size past the default. I'm kinda new to xaml so is this default behavior or what do I do to make the combobox small?

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  • The MYSTERY SPIRAL

    - by CVS26
    Problem statement: Given a integer N, print N*N numbers in a N x N spiral Detailed problem description: http://2600hertz.wordpress.com/2010/03/20/the-mystery-spiral/ Solution: Recently posted the following code. (managed to compress it into as few as 99 lines...) //File : spiral.c // //INPUT : Size of spiral (N) //OUTPUT : Numbers printed in a N x N spiral #include <stdio.h> #include <conio.h> #include <stdlib.h> void main() { int N; clrscr(); //get input no. N printf("\nEnter size of Matrix: "); scanf("%d",&N); //Allocate reqd. memory int* matrix_ptr= (int*)malloc(N*N); //Filling the Matrix spirally int curr_val=N*N; int* curr_ptr=matrix_ptr; int curr_level=N; while(curr_level>1) { //curr_level-1 elements horizontally //from left to right for(int x=0;x<curr_level-1;x++) { *curr_ptr=curr_val; curr_val--; curr_ptr++; } //curr_level-1 elements vertically //from top to bottom for(int y=0;y<curr_level-1;y++) { *curr_ptr=curr_val; curr_val--; curr_ptr+=N; } //curr_level-1 elements horizontally //from right to left for(int z=0;z<curr_level-1;z++) { *curr_ptr=curr_val; curr_val--; curr_ptr--; } //curr_level-1 element vertically //from bottom to top for(int w=0;w<curr_level-1;w++) { *curr_ptr=curr_val; curr_val--; curr_ptr-=N; } //Next curr_ptr+=N+1; curr_level-=2; } *curr_ptr=curr_val; //routine to print the matrix printf("\n\n\n\n\n"); for( int i=0;i<N;i++) { for( int j=0;j<N;j++) { printf("%d\t",*(matrix_ptr+(i*N+j))); } printf("\n"); } getch(); } Please comment on further optimisations (if any)...

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  • Looking for an algorithm that will show how to fit the most boxes in a container.

    - by Abe Miessler
    I've been interested in writing an application that will show how to fit boxes (of random dimensions) in a container so there is as little space as possible left. A real life example would be something that would tell you how to use the most space in a UPS truck. Does anyone know of a good place to start for something like this? Is there an existing algorithm that does something similar to what I'm talking about?

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  • input type="text" not clickable in a jcarousel (jQuery based carousel) element

    - by AkaiKen
    Hello ! I work on a website where almost all objects are in a jCarousel element : <div> <ul id="mycarousel"> <li>object 1</li> <li>object 2</li> </ul> </div> is the "written" code, and : <div class=" jcarousel-skin-tango"> <div class="jcarousel-container jcarousel-container-horizontal" style="display: block;"> <div class="jcarousel-prev jcarousel-prev-horizontal jcarousel-prev-disabled jcarousel-prev-disabled-horizontal" style="display: block;" disabled="true"></div> <div class="jcarousel-next jcarousel-next-horizontal" style="display: block;" disabled="false"></div> <div class="jcarousel-clip jcarousel-clip-horizontal"> <ul class=" jcarousel-list jcarousel-list-horizontal" id="mycarousel" style="width: 2853px; left: 0px;"> <li class="jcarousel-item jcarousel-item-horizontal jcarousel-item-1 jcarousel-item-1-horizontal" jcarouselindex="1" style="width: 307px;"> object 1 </li> <li class="jcarousel-item jcarousel-item-horizontal jcarousel-item-1 jcarousel-item-1-horizontal" jcarouselindex="1" style="width: 307px;"> object 2 </li> </ul> </div> </div> is the generated code (here it lacks the ultimate </div>, maybe a number of rows limitation ?). I'm sorry I can't provide a link, I work on a local server currently. It works perfectly =) but... my problem is : an <input type="text" /> won't be clickable in this environment. I tried the others type of input, radio, checkbox, file : works. But text does not. I can specify a value on my input (it's its purpose on my work : a search in a database for datas to be modified and reinjected in database). In fact, I can access to the text input by clicking-right in then left. But it's pretty 'unergonomic', and in my project it's unthinkable. Ah, and I tried to style this input with a style="z-index:1000;", no changes, I think it's not a CSS problem. Does anybody have an idea ? Thank you very much in advance.

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  • CSS Drop-Shadows Without Images

    - by Spencer B.
    I'm trying to use Nicolas Gallagher's brilliant CSS work on applying CSS drop-shadows to elements without images and without extra markup using the :before and :after pseudo-elements. His code is provided below... .drop-shadow { position:relative; width:90%; } .drop-shadow:before, .drop-shadow:after { content:""; position:absolute; z-index:-1; bottom:15px; left:10px; width:50%; height:20%; max-width:300px; -webkit-box-shadow:0 15px 10px rgba(0, 0, 0, 0.7); -moz-box-shadow:0 15px 10px rgba(0, 0, 0, 0.7); box-shadow:0 15px 10px rgba(0, 0, 0, 0.7); -webkit-transform:rotate(-3deg); -moz-transform:rotate(-3deg); -o-transform:rotate(-3deg); transform:rotate(-3deg); } .drop-shadow:after{ right:10px; left:auto; -webkit-transform:rotate(3deg); -moz-transform:rotate(3deg); -o-transform:rotate(3deg); transform:rotate(3deg); } I'm trying to target all images wrapped with an a tag, which in Wordpress are really full-size images that have been resized to a medium height and width in the backend. When the user clicks on the smaller image in the post, it opens up a new tab with the fullsize view of the image (I'm sure you're already familiar with this if you use Wordpress). For some reason, I can't get his code to work, and I'm wondering if I'm targeting this wrong within my CSS. Can you help? In place of the .drop-shadow class that he uses, I'm target all images wrapped with an a tag within the #main-i div. So, like this... #main-i a img Does anyone know how to target it better than I have so that I can get the drop shadows to be applied for all images within the specified div? Thanks for your help! P.S. An example of the image I am wanting to target with this CSS is the picture of the Haitian boy here: http://lifebridgecypress.org/our-heart/seventy-two/help-haiti

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  • Windowsless property is not working in Firefox ONLY

    - by lmenaria
    Hello, I have created a simple silverlight application to display some text at realtime from xml. The text display using HTML DIV tag. I have added plugin property windowless=true, enablehtmlaccess=true,background=transparent. On Silverlight I have added a Button "Continue" at Top & Bottom, which shows some message on that click. Silverlight Plugin resize based in XML contents. My code : MainPage.xaml: MainPage.xaml.cs: Creating HTML DIV on Application Start using : HtmlDocument _document = HtmlPage.Document; HtmlElement iDIV = _document.CreateElement("DIV"); iDIV.SetAttribute("id", "divHTMLViewer"); iDIV.SetStyleAttribute("position", "absolute"); iDIV.SetStyleAttribute("z-index", "1"); iDIV.SetStyleAttribute("display", "INLINE"); iDIV.SetStyleAttribute("top", "100px"); iDIV.SetStyleAttribute("height", "0px"); iDIV.SetStyleAttribute("width", "96%"); iDIV.SetStyleAttribute("left", "15px"); iDIV.SetStyleAttribute("text-align", "justify"); HtmlElement body = _document.GetElementsByTagName("BODY")[0] as HtmlElement; body.RemoveChild(iDIV); body.AppendChild(iDIV); Set the XML text : HtmlElement divHTMLViewer = HtmlPage.Document.GetElementById("divHTMLViewer"); sText = sText.Replace("<", "<").Replace(">", ""); divHTMLViewer.SetStyleAttribute("display", "none"); divHTMLViewer.SetStyleAttribute("width", "96%"); divHTMLViewer.SetStyleAttribute("top", "100px"); divHTMLViewer.SetStyleAttribute("left", "15px"); divHTMLViewer.RemoveStyleAttribute("color"); divHTMLViewer.RemoveStyleAttribute("fontSize"); divHTMLViewer.SetProperty("innerHTML", sText); divHTMLViewer.SetStyleAttribute("display", "INLINE"); setSilverlightControlHeight(UILAYOUT.INSTRUCTIONS); Silverlight Plugin size increase code : isilverlightControlHost.SetStyleAttribute("height", HtmlPage.Window.Eval("document.documentElement.scrollHeight").ToString() + "px"); isilverlightControlHost.SetStyleAttribute("position", "absolute"); All these code is working fine in Internet Explorer, Crome & Safari but "Continue" not visible in FIREFOX ONLY. So is there any issue with this code ? Code Sample :http://lm-bucket-for-forum-post.s3.amazonaws.com/HtMLViewerSilverLight.zip working sample : Just replace ".zip" with "TestPage.html" in above URL. Please let me know how can I solve it ? Thanks in advance, Laxmilal Menaria

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  • Using the HTML 'label' tag with radio buttons

    - by GlenPeterson
    Does the label tag work with radio buttons? If so, how do you use it? I have a form that displays like this: First Name: (text field) Hair Color: (color drop-down) Description: (text area) Salutation: (radio buttons for Mr., Mrs., Miss) I'd like to use the label tag for each label in the left column to define its connection to the appropriate control in the right column. But If I use a radio button, the spec seems to indicate that suddenly the actual "Salutation" label for the form control no longer belongs in the label tag, but rather the options "Mr., Mrs., etc." go in the label tag. I've always been a fan of accessibility and the semantic web, but this design doesn't make sense to me. The label tag explicitly declares labels. The option tag selection options. How do you declare a label on the actual label for a set of radio buttons? UPDATE: Here is an example with code: <tr><th><label for"sc">Status:</label></th> <td>&#160;</td> <td><select name="statusCode" id="sc"> <option value="ON_TIME">On Time</option> <option value="LATE">Late</option> </select></td></tr> This works great. But unlike other form controls, radio buttons have a separate field for each value: <tr><th align="right"><label for="???">Activity:</label></th> <td>&#160;</td> <td align="left"><input type="radio" name="es" value="" id="es0" /> Active &#160; <input type="radio" name="es" value="ON_TIME" checked="checked" id="es1" /> Completed on Time &#160; <input type="radio" name="es" value="LATE" id="es2" /> Completed Late &#160; <input type="radio" name="es" value="CANCELED" id="es3" /> Canceled</td> </tr> What to do?

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