Search Results

Search found 6772 results on 271 pages for 'rob effect'.

Page 229/271 | < Previous Page | 225 226 227 228 229 230 231 232 233 234 235 236  | Next Page >

• BeginInvoke on ObservableCollection not immediate.

  - by Padu Merloti

  In my code I subscribe to an event that happens on a different thread. Every time this event happens, I receive an string that is posted to the observable collection: Dispatcher currentDispatcher = Dispatcher.CurrentDispatcher; var SerialLog = new ObservableCollection<string>(); private void hitStation_RawCommandSent(object sender, StringEventArgs e) { string command = e.Value.Replace("\r\n", ""); Action dispatchAction = () => SerialLog.Add(command); currentDispatcher.BeginInvoke(dispatchAction, DispatcherPriority.Render); } The code below is in my view model (could be in the code behind, it doesn't matter in this case). When I call "hitstation.PrepareHit", the event above gets called a couple times, then I wait and call "hitStation.HitBall", and the event above gets called a couple more times. private void HitBall() { try { try { Mouse.OverrideCursor = Cursors.Wait; //prepare hit hitStation.PrepareHit(hitSpeed); Thread.Wait(1000); PlayWarning(); //hit hitStation.HitBall(hitSpeed); } catch (TimeoutException ex) { MessageBox.Show("Timeout hitting ball: " + ex.Message); } } finally { Mouse.OverrideCursor = null; } } The problem I'm having is that the ListBox that is bound to my SerialLog gets updated only when the HitBall method finishes. I was expecting seeing a bunch of updates from the PrepareHit, a pause and then a bunch more updates from the HitBall. I've tried a couple of DispatcherPriority arguments, but they don't seem to have any effect.

  Read the article

• How do I get started designing and implementing a script interface for my .NET application?

  - by Peter Mortensen

  How do I get started designing and implementing a script interface for my .NET application? There is VSTA (the .NET equivalent of VBA for COM), but as far as I understand I would have to pay a license fee for every installation of my application. It is an open source application so this will not work. There is also e.g. the embedding of interpreters (IronPython?), but I don't understand how this would allow exposing an "object model" (see below) to external (or internal) scripts. What is the scripting interface story in .NET? Is it somehow trivial in .NET to do this? Background: I have once designed and implemented a fairly involved script interface for a Macintosh application for acquisition and analysis of data from a mass spectrometer (Mac OS, System 7) and later a COM interface for a Windows application. Both were designed with an "object model" and classes (that can have properties). These are overloaded words, but in a scripting interface context object model is essentially a containment hiarchy of objects of specific classes. Classes have properties and lists of contained objects. E.g. like in the COM interfaces exposed in Microsoft Office applications, where the application object can be used to add to its list of documents (with the side effect of creating the GUI representation of a document). External scripts can create new objects in a container and navigate through the content of the hiarchy at any given time. In the Macintosh case scripts could be written in e.g. AppleScript or Frontier. On the Macintosh the implementation of a scripting interface was very complicated. Support for it in Metroworks' C++ class library (the name escapes me right now) made it much simpler.

  Read the article

• Why does Microsoft advise against readonly fields with mutable values?

  - by Weeble

  In the Design Guidelines for Developing Class Libraries, Microsoft say: Do not assign instances of mutable types to read-only fields. The objects created using a mutable type can be modified after they are created. For example, arrays and most collections are mutable types while Int32, Uri, and String are immutable types. For fields that hold a mutable reference type, the read-only modifier prevents the field value from being overwritten but does not protect the mutable type from modification. This simply restates the behaviour of readonly without explaining why it's bad to use readonly. The implication appears to be that many people do not understand what "readonly" does and will wrongly expect readonly fields to be deeply immutable. In effect it advises using "readonly" as code documentation indicating deep immutability - despite the fact that the compiler has no way to enforce this - and disallows its use for its normal function: to ensure that the value of the field doesn't change after the object has been constructed. I feel uneasy with this recommendation to use "readonly" to indicate something other than its normal meaning understood by the compiler. I feel that it encourages people to misunderstand the meaning of "readonly", and furthermore to expect it to mean something that the author of the code might not intend. I feel that it precludes using it in places it could be useful - e.g. to show that some relationship between two mutable objects remains unchanged for the lifetime of one of those objects. The notion of assuming that readers do not understand the meaning of "readonly" also appears to be in contradiction to other advice from Microsoft, such as FxCop's "Do not initialize unnecessarily" rule, which assumes readers of your code to be experts in the language and should know that (for example) bool fields are automatically initialised to false, and stops you from providing the redundancy that shows "yes, this has been consciously set to false; I didn't just forget to initialize it". So, first and foremost, why do Microsoft advise against use of readonly for references to mutable types? I'd also be interested to know: Do you follow this Design Guideline in all your code? What do you expect when you see "readonly" in a piece of code you didn't write?

  Read the article

• Do complex JOINs cause high coupling and maintenance problems ?

  - by ashkan.kh.nazary

  Our project has ~40 tables with complex relations.A colleague believes in using long join queries which enforces me to learn about tables outside of my module but I think I should not concern about tables not directly related to my module and use data access functions (written by those responsible for other modules) when I need data from them. Let me clarify: I am responsible for the ContactVendor module which enables the customers to contact the vendor and start a conversation about some specific product. Products module has it's own complex tables and relations with functions that encapsulate details (for example i18n, activation, product availability etc ...). Now I need to show the product title of some product related to some conversation between the vendor and customers. I may either write a long query that retrieves the product info along with conversation stuff in one shot (which enforces me to learn about Product tables) OR I may pass the relevant product_id to the get_product_info(int) function. First approach is obviously demanding and introduces many bad practices and things I normally consider fault in programming. The problem with the second approach seems to be the countless mini queries these access functions cause and performance loss is a concern when a loop tries to fetch product titles for 100 products using functions that each perform a separate query. So I'm stuck between "don't code to the implementation, code to interface" and performance. What is the right way of doing things ? UPDATE: I'm specially concerned about possible future modifications to those tables outside of my module. What if the Products module decided to change the way they are doing things? or for some reason modify the schema? It means some other modules would break or malfunction until the change is integrated to them. The usual ripple effect problem.

  Read the article

• Rails running multiple delayed_job - lock tables

  - by pepernik

  Hey. I use delayed_job for background processing. I have 8 CPU server, MySQL and I start 7 delayed_job processes RAILS_ENV=production script/delayed_job -n 7 start Q1: I'm wondering is it possible that 2 or more delayed_job processes start processing the same process (the same record-row in the database delayed_jobs). I checked the code of the delayed_job plugin but can not find the lock directive in a way it should be. I think each process should lock the database table before executing an UPDATE on lock_by column. They lock the record simply by updating the locked_by field (UPDATE delayed_jobs SET locked_by...). Is that really enough? No locking needed? Why? I know that UPDATE has higher priority than SELECT but I think this does not have the effect in this case. My understanding of the multy-threaded situation is: Process1: Get waiting job X. [OK] Process2: Get waiting jobs X. [OK] Process1: Update locked_by field. [OK] Process2: Update locked_by field. [OK] Process1: Get waiting job X. [Already processed] Process2: Get waiting jobs X. [Already processed] I think in some cases more jobs can get the same information and can start processing the same process. Q2: Is 7 delayed_jobs a good number for 8CPU server? Why yes/not. Thx 10x!

  Read the article

• C: 8x8 -> 16 bit multiply precision guaranteed by integer promotions?

  - by craig-blome

  I'm trying to figure out if the C Standard (C90, though I'm working off Derek Jones' annotated C99 book) guarantees that I will not lose precision multiplying two unsigned 8-bit values and storing to a 16-bit result. An example statement is as follows: unsigned char foo; unsigned int foo_u16 = foo * 10; Our Keil 8051 compiler (v7.50 at present) will generate a MUL AB instruction which stores the MSB in the B register and the LSB in the accumulator. If I cast foo to a unsigned int first: unsigned int foo_u16 = (unsigned int)foo * 10; then the compiler correctly decides I want a unsigned int there and generates an expensive call to a 16x16 bit integer multiply routine. I would like to argue beyond reasonable doubt that this defensive measure is not necessary. As I read the integer promotions described in 6.3.1.1, the effect of the first line shall be as if foo and 10 were promoted to unsigned int, the multiplication performed, and the result stored as unsigned int in foo_u16. If the compiler knows an instruction that does 8x8-16 bit multiplications without loss of precision, so much the better; but the precision is guaranteed. Am I reading this correctly? Best regards, Craig Blome

  Read the article

• jQuery: change content of <option> elements

  - by piquadrat

  I have a select widget with a couple of AJAX enhancements. <select id="authors"> <option value="1">Foo Bar</option> <option value="2" selected="selected">Bar Baz</option> </select> Now, if the selected option changes, I want to change the "content" ("Foo Bar" and "Bar Baz" in the example). How can I do that with jQuery? I tried the following, but obviously, it doesn't work. $('#authors').change(function(){ $('#authors option[selected=selected]').html('new content'); }); /edit: to clarify, the selector '#authors option[selected=selected]' works fine, it selects the correct option DOM element. But .html('new content') does nothing. 2nd edit: OK, this is embarassing. I tried my code in Chrome's JavaScript console, where it didn't have any effect. After jAndy clearly demonstrated that it works in jsFiddle, I tried it in the FireBug console, and there it works. Lesson learned :-)

  Read the article

• How do you reenable a validation control w/o it simultaneously perform an immediate validation?

  - by Velika2

  When I called this function to enable a validator from client javascript: `ValidatorEnable(document.getElementById('<%=valPassportOtherText.ClientID%>'), true); //enable` validation control the required validation control immediately performed it validation, found the value in the associated text box blank and set focus to the textbox (because SetFocusOnError was set to true). As a result, the side effect was that focus was shifted to the control that was associated with the Validation control, i teh example, txtSpecifyOccupation. <asp:TextBox ID="txtSpecifyOccupation" runat="server" AutoCompleteType="Disabled" CssClass="DefaultTextBox DefaultWidth" MaxLength="24" Rows="2"></asp:TextBox> <asp:RequiredFieldValidator ID="valSpecifyOccupation" runat="server" ControlToValidate="txtSpecifyOccupation" ErrorMessage="1.14b Please specify your &lt;b&gt;Occupation&lt;/b&gt;" SetFocusOnError="True">&nbsp;Required</asp:RequiredFieldValidator> Perhaps there is a way to enable the (required) validator without having it simultaneously perform the validation (at least until the user has tabbed off of it?) I'd like validation of the txtSpecifyOccupation textbox to occur only on a Page submit or when the user has tabbed of the required txtSpecifyoccupation textbox. How can I achieve this?

  Read the article

• Django/jQuery - read file and pass to browser as file download prompt

  - by danspants

  I've previously asked a question regarding passing files to the browser so a user receives a download prompt. However these files were really just strings creatd at the end of a function and it was simple to pass them to an iframe's src attribute for the desired effect. Now I have a more ambitious requirement, I need to pass pre existing files of any format to the browser. I have attempted this using the following code: def return_file(request): try: bob=open(urllib.unquote(request.POST["file"]),"rb") response=HttpResponse(content=bob,mimetype="application/x-unknown") response["Content-Disposition"] = "attachment; filename=nothing.xls" return HttpResponse(response) except: return HttpResponse(sys.exc_info()) With my original setup the following jQuery was sufficient to give the desired download prompt: jQuery('#download').attr("src","/return_file/"); However this won't work anymore as I need to pass POST values to the function. my attempt to rectify that is below, but instead of a download prompt I get the file displayed as text. jQuery.get("/return_file/",{"file":"c:/filename.xls"},function(data) { jQuery(thisButton).children("iframe").attr("src",data); }); Any ideas as to where I'm going wrong? Thanks!

  Read the article

• Retrieving license type (linux/windows/windows+sqlserver) for an Amazon EC2 instance via the API?

  - by Geir

  I need to calculate the hourly running costs for my Amazon EC2 instances. This varies even between instances with same hardware configs (instance types) because I use different amazon images (AMIs): some plain windows server and some windows server with sql server (both of them have additional costs compared with plain linux instances) The EC2 Java API has a describeInstances() method which returns Instance objects with metadata such as instance id, instance type (m1.small/large...), state (running,stopped..) public ip, etc. This Instance object also has a .getLicense().getPool() which according to the Java API should return "The license pool from which this license was used (ex: 'windows')." I thought this is were it may also give 'windows+sqlserver' or something to that effect. The getLicense() method does however return null.. I've navigated around the EC2 web console, not being able to find this information, but I'm hoping that it is possible - otherwise it would mean that you cannot identify the true hourly cost of an particular instance unless you know which AMI was used to create it in the first place (plain windows server or windows server with sql server). Anyone? Thanks :) /Geir

  Read the article

• Extracting shell script from parameterised Hudson job

  - by Jonik

  I have a parameterised Hudson job, used for some AWS deployment stuff, which in one build step runs certain shell commands. However, that script has become sufficiently complicated that I want to "extract" it from Hudson to a separate script file, so that it can easily be versioned properly. The Hudson job would then simply update from VCS and execute the external script file. My main question is about passing parameters to the script. I have a Hudson parameter named AMI_ID and a few others. The script references those params as if they were environment variables: echo "Using AMI $AMI_ID and type $TYPE" Now, this works fine inside Hudson, but not if Hudson calls an external script. Could I somehow make Hudson set the params as environment variables so that I don't need to change the script? Or is my best option to alter the script to take command line parameters (and possibly assign those to named variables for readability: ami_id=$1; type=$2; ... )? I tried something like this but the script doesn't get correctly replaced values: export AMI_ID=$AMI_ID export TYPE=$TYPE external-script.sh # this tries to use e.g. $AMI_ID Bonus question: when the script is inside Hudson, the "console output" will contain both the executed commands and their output. This is extremely useful for debugging when something goes wrong with a build! For example, here the line starting with "+" is part of the script and the following line its output: + ec2-associate-address -K pk.pem -C cert.pem 77.125.116.139 -i i-aa3487fd ADDRESS 77.125.116.139 i-aa3487fd When calling an external script, Hudson output will only contain the latter line, making debugging harder. I could cat the script file to stdout before running it, but that's not optimal either. In effect, I'd like a kind of DOS-style "echo on" for the script which I'm calling from Hudson - anyone know a trick to achieve this?

  Read the article

• How to Implement Overlay blend method using opengles 1.1

  - by Cylon

  Blow is the algorithm of overlay. and i want using it on iphone, but iphone 3g only support opengles 1.1, can not using glsl. can i using blend function or texture combine to implement it. thank you /////////Reference from OpenGL Shading® Language Third Edition /////////// 19.6.12 Overlay OVERLAY first computes the luminance of the base value. If the luminance value is less than 0.5, the blend and base values are multiplied together. If the luminance value is greater than 0.5, a screen operation is performed. The effect is that the base value is mixed with the blend value, rather than being replaced. This allows patterns and colors to overlay the base image, but shadows and highlights in the base image are preserved. A discontinuity occurs where luminance = 0.5. To provide a smooth transition, we actually do a linear blend of the two equations for luminance in the range [0.45,0.55]. float luminance = dot(base, lumCoeff); if (luminance < 0.45) result = 2.0 * blend * base; else if (luminance 0.55) result = white - 2.0 * (white - blend) * (white - base); else { vec4 result1 = 2.0 * blend * base; vec4 result2 = white - 2.0 * (white - blend) * (white - base); result = mix(result1, result2, (luminance - 0.45) * 10.0); }

  Read the article

• Set button content in a label (custom control)

  - by user1881207

  Instead of voting negative this question, answer to tell me what's wrong! I want to set the Button Content in a label in the custom control, because when I use it, the Content property is not visible and the button is empty (no text). <Button x:Class="WpfApplication1.UserControl1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="35" d:DesignWidth="273" Content="Button"> <Button.Template> <ControlTemplate> <Grid> <Rectangle Name="rGridBack" StrokeThickness="1"> <Rectangle.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF4D4D4D" Offset="1" /> <GradientStop Color="#FF404040" Offset="0" /> </LinearGradientBrush> </Rectangle.Fill> <Rectangle.Stroke> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF4F4F4F" Offset="0" /> <GradientStop Color="#FF5B5B5B" Offset="1" /> </LinearGradientBrush> </Rectangle.Stroke> </Rectangle> <Rectangle Fill="#FF1E1E1E" Margin="1,1,1,1" Name="rThickness" /> <Rectangle Margin="2,2,2,2" Name="rGridTop" StrokeThickness="1"> <Rectangle.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF68686C" Offset="0" /> <GradientStop Color="#FF474747" Offset="1" /> </LinearGradientBrush> </Rectangle.Fill> <Rectangle.Stroke> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF7F7F7F" Offset="0" /> <GradientStop Color="#FF575757" Offset="1" /> </LinearGradientBrush> </Rectangle.Stroke> </Rectangle> <!--This label is where I want to set the Button.Content property--> <Label FontWeight="Normal" Foreground="White" HorizontalContentAlignment="Center" Name="tblckStep1Desc" Padding="0" VerticalContentAlignment="Center"> <Label.Effect> <DropShadowEffect BlurRadius="2" Color="Black" Direction="330" Opacity="0.7" ShadowDepth="1.5" /> </Label.Effect> </Label> </Grid> <ControlTemplate.Triggers> <Trigger Property="Button.Content" Value=""> <Setter Property="Content" TargetName="tblckStep1Desc"> </Setter> </Trigger> <Trigger Property="UIElement.IsMouseOver" Value="True"> <Setter Property="Shape.Fill" TargetName="rGridTop"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF838383" Offset="0" /> <GradientStop Color="#FF545454" Offset="1" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Stroke" TargetName="rGridTop"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF595959" Offset="1" /> <GradientStop Color="#FF929292" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Stroke" TargetName="rGridBack"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF414141" Offset="0" /> <GradientStop Color="#FF565656" Offset="1" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Fill" TargetName="rThickness"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF181818" Offset="1" /> <GradientStop Color="#FF181818" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> </Trigger> <Trigger Property="UIElement.IsEnabled" Value="False"> <Setter Property="Shape.Fill" TargetName="rGridTop"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF68686C" Offset="0" /> <GradientStop Color="#FF474747" Offset="1" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Stroke" TargetName="rGridTop"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF7F7F7F" Offset="0" /> <GradientStop Color="#FF575757" Offset="1" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Stroke" TargetName="rGridBack"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF4F4F4F" Offset="0" /> <GradientStop Color="#FF5B5B5B" Offset="1" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Fill" TargetName="rThickness"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF1E1E1E" Offset="1" /> <GradientStop Color="#FF1E1E1E" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Control.Foreground" TargetName="tblckStep1Desc"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF898989" Offset="1" /> <GradientStop Color="#FF898989" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> </Trigger> <Trigger Property="ButtonBase.IsPressed" Value="True"> <Setter Property="Shape.Fill" TargetName="rGridTop"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF313131" Offset="1" /> <GradientStop Color="#FF2E2E2E" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Stroke" TargetName="rGridTop"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF1F1F1F" Offset="1" /> <GradientStop Color="#FF1F1F1F" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Stroke" TargetName="rGridBack"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF414141" Offset="1" /> <GradientStop Color="#FF565656" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Shape.Fill" TargetName="rThickness"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF0C0C0C" Offset="1" /> <GradientStop Color="#FF0C0C0C" Offset="0" /> </LinearGradientBrush> </Setter.Value> </Setter> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Button.Template> The button is based on Adobe CS5 suite on dialog forms, because a lot of code.

  Read the article

• CSS horizontal scrolling box

  - by tony noriega

  im trying to create a horizontal scrolling box to create a "timeline" effect... but i cant seem to get it to scroll horizontally, versus the vertical scroll bar that shows up...thoughts? #container{ width:500px; height:250px; border:1px solid #cc61b8; overflow:auto; } .container-bits{ width:250px; height:498px; float:left; } <div id="container"> <div class="container-bits">Content Here</div> <div class="container-bits">Content Here</div> <div class="container-bits">Content Here</div> <div class="container-bits">Content Here</div> <div class="container-bits">Content Here</div> <div class="container-bits">Content Here</div> </div>

  Read the article

• SQL query recursion for a web-like structure

  - by MickeyD

  I have a table here, named "Foo". The data is set up something like this. ID TableReference DataId0 DataId1 DataId2 -- -------------- ------- ------- ------- 1 Prize 3 4 5 2 Prize 4 5 NULL 3 Cash 1 NULL NULL 4 Prize 8 NULL 12 5 Foo 2 3 NULL 6 Cash 8 1 10 7 Foo 5 1 2 Etc. The data is horribly set up, I know, but I didn't set it up that way. :) I'm only dealing with the after effect. I'm trying to come up with a way to essentially "flatten" the table; that is, to display all the data to a point where the table "Foo" does not reference itself. I'm trying to figure out a sql query that I can do to get there. Usually when I deal with recursion, I have (or can establish) parent IDs and set it up that way, but for this table there are seemingly multiple child and parent IDs creating a web-like structure instead of a hierarchy. So I'm at a loss where to even begin to write a sql query for something like this. Note: There is no infinite looping (where one Foo points to another Foo, which points back to the original Foo) from what I've found. Using t-sql. Thanks for any assistance, if at all possible.

  Read the article

• PNG Transparency Problems in IE8

  - by user138777

  I'm having problems with a transparent PNG image showing black dithered pixel artifacts around the edge of the non transparent part of the image. It only does this in Internet Explorer and it only does it from a Javascript file it is used in. Here's what I'm talking about... http://70.86.157.71/test/test3.htm (link now dead) ...notice the girl in the bottom right corner. She has artifacts around her in IE8 (I haven't tested it in previous versions of IE, but I'm assuming it probably does the same). It works perfectly in Firefox and Chrome. The image is loaded from a Javascript file to produce the mouseover effect. If you load the image all by itself, it works fine. Here's the image... http://70.86.157.71/test/consultant2.png Does anyone know how to fix this? The image was produced in Photoshop CS3. I've read things about removing the Gama, but that apparently was in previous versions of Photoshop and when I load it in TweakPNG, it doesn't have Gama. Please help!

  Read the article

• How to Detect in Windows Registry if user has .Net Framework installed?

  - by Sarah Weinberger

  How do I detect in the Windows Registry if a user has .Net Framework installed? I am not looking for a .Net based solution, as the query is from InnoSetup. I know from reading another post here on Stack Overflow that .Net Framework is an inplace upgrade to 4.0. I already know how to check if a user has version 4.0 installed on the system, namely by checking the following: function FindFramework(): Boolean; var bVer4x0: Boolean; bVer4x0Client: Boolean; bVer4x0Full: Boolean; bSuccess: Boolean; iInstalled: Cardinal; begin Result := False; bVer4x0Client := False; bVer4x0Full := False; bVer4x0 := RegKeyExists(HKLM, 'SOFTWARE\Microsoft\.NETFramework\policy\v4.0'); bSuccess := RegQueryDWordValue(HKLM, 'Software\Microsoft\NET Framework Setup\NDP\v4 \Client', 'Install', iInstalled); if (1 = iInstalled) AND (True = bSuccess) then bVer4x0Client := True; bSuccess := RegQueryDWordValue(HKLM, 'Software\Microsoft\NET Framework Setup\NDP\v4 \Full', 'Install', iInstalled); if (1 = iInstalled) AND (True = bSuccess) then bVer4x0Full := True; if (True = bVer4x0Full) then begin Result := True; end; end; I checked the registry and there is no v4.5 folder, which makes sense if .Net Framework 4.5 is an inplace upgrade. Still, the Control Panel Programs and Features includes the listing. I know that probably "issuing dotNetFx45_Full_setup.exe /q" will have no bad effect if installing on a system that already has version 4.5, but I still would like to not install the upgrade if the upgrade already exists, faster and less problems.

  Read the article

• Changing the indexing on existing table in SQL Server 2000

  - by Raj

  Guys, Here is the scenario: SQL Server 2000 (8.0.2055) Table currently has 478 million rows of data. The Primary Key column is an INT with IDENTITY. There is an Unique Constraint imposed on two other columns with a Non-Clustered Index. This is a vendor application and we are only responsible for maintaining the DB. Now the vendor has recommended doing the following "to improve performance" Drop the PK and Clustered Index Drop the non-clustered index on the two columns with the UNIQUE CONSTRAINT Recreate the PK, with a NON-CLUSTERED index Create a CLUSTERED index on the two columns with the UNIQUE CONSTRAINT I am not convinced that this is the right thing to do. I have a number of concerns. By dropping the PK and indexes, you will be creating a heap with 478 million rows of data. Then creating a CLUSTERED INDEX on two columns would be a really mammoth task. Would creating another table with the same structure and new indexing scheme and then copying the data over, dropping the old table and renaming the new one be a better approach? I am also not sure how the stored procs will react. Will they continue using the cached execution plan, considering that they are not being explicitly recompiled. I am simply not able to understand what kind of "performance improvement" this change will provide. I think that this will actually have the reverse effect. All thoughts welcome. Thanks in advance, Raj

  Read the article

• Replacing content with jquery.

  - by BillZ

  I am loading a movie into a overlay. My problem is that when I close the div overlay the movie continues to play. I do not control the code on the move side it is imported via a script tag which then opens in a iframe. I am able to remove the content of the of the div and then the movie stops playing. Then of course when the user opens the div again the movie is gone. My current thinking was that I could simply replace the script tag with one just like it but the outcome of that is that there is nothing there. I have been using jquery. Thanks -- script -- $(document).ready(function() { $("#closeModal2").click(function() { $("#movieContainer").html("<script src='http://www.accelacast.com/programs/launch.js'/>"); }); }); -- html -- <div id="movieContainer"> <script id="movieTag" language='JavaScript' src='http://www.accelacast.com/programs/launch.js'/> </div> On a side note. I tried replacing the src attribute of the script tag with no luck. I was able to replace the src of a image though. Is it not possible to effect the src attribute of script? Thanks

  Read the article

• Django Querysets -- need a less expensive way to do this..

  - by rh0dium

  Hi all, I have a problem with some code and I believe it is because of the expense of the queryset. I am looking for a much less expensive (in terms of time) way to to this.. log.info("Getting Users") employees = Employee.objects.filter(is_active = True) log.info("Have Users") if opt.supervisor: if opt.hierarchical: people = getSubs(employees, " ".join(args)) else: people = employees.filter(supervisor__name__icontains = " ".join(args)) else: log.info("Filtering Users") people = employees.filter(name__icontains = " ".join(args)) | \ employees.filter(unix_accounts__username__icontains = " ".join(args)) log.info("Filtered Users") log.info("Processing data") np = [] for person in people: unix, p4, bugz = "No", "No", "No" if len(person.unix_accounts.all()): unix = "Yes" if len(person.perforce_accounts.all()): p4 = "Yes" if len(person.bugzilla_accounts.all()): bugz = "Yes" if person.cell_phone != "": exphone = fixphone(person.cell_phone) elif person.other_phone != "": exphone = fixphone(person.other_phone) else: exphone = "" np.append({ 'name':person.name, 'office_phone': fixphone(person.office_phone), 'position': person.position, 'location': person.location.description, 'email': person.email, 'functional_area': person.functional_area.name, 'department': person.department.name, 'supervisor': person.supervisor.name, 'unix': unix, 'perforce': p4, 'bugzilla':bugz, 'cell_phone': fixphone(exphone), 'fax': fixphone(person.fax), 'last_update': person.last_update.ctime() }) log.info("Have data") Now this results in a log which looks like this.. 19:00:55 INFO phone phone Getting Users 19:00:57 INFO phone phone Have Users 19:00:57 INFO phone phone Processing data 19:01:30 INFO phone phone Have data As you can see it's taking over 30 seconds to simply iterate over the data. That is way too expensive. Can someone clue me into a more efficient way to do this. I thought that if I did the first filter that would make things easier but seems to have no effect. I'm at a loss on this one. Thanks To be clear this is about 1500 employees -- Not too many!!

  Read the article

• The fastest way to iterate through a collection of objects

  - by Trev

  Hello all, First to give you some background: I have some research code which performs a Monte Carlo simulation, essential what happens is I iterate through a collection of objects, compute a number of vectors from their surface then for each vector I iterate through the collection of objects again to see if the vector hits another object (similar to ray tracing). The pseudo code would look something like this for each object { for a number of vectors { do some computations for each object { check if vector intersects } } } As the number of objects can be quite large and the amount of rays is even larger I thought it would be wise to optimise how I iterate through the collection of objects. I created some test code which tests arrays, lists and vectors and for my first test cases found that vectors iterators were around twice as fast as arrays however when I implemented a vector in my code in was somewhat slower than the array I was using before. So I went back to the test code and increased the complexity of the object function each loop was calling (a dummy function equivalent to 'check if vector intersects') and I found that when the complexity of the function increases the execution time gap between arrays and vectors reduces until eventually the array was quicker. Does anyone know why this occurs? It seems strange that execution time inside the loop should effect the outer loop run time.

  Read the article

• WPF BackGroundWorker ProgressChanged not updating textblock

  - by user354469

  I have the method below that seems to behaving strangely. The ProgressChanged and RunWorkerCompleted seem to be updating themselves at the same time. If I comment out the RunWorkerCompleted code which updates the Textblock I see the ProgressChanged taking effect after the data is transferred. What am i doing wrong here? I obviously want the textblock to show I'm getting data, then change when I have finished getting the data. public void GetAppointmentsBackground() { System.Windows.Threading.Dispatcher webServiceDispatcher = this.Dispatcher; worker = new BackgroundWorker(); worker.WorkerReportsProgress = true; worker.DoWork += delegate(object sender, DoWorkEventArgs args) { GetAppointmentsForDayDelegate getAppt = new GetAppointmentsForDayDelegate(GetAppointmentsForDay); webServiceDispatcher.BeginInvoke(getAppt); (sender as BackgroundWorker).ReportProgress(25); }; worker.ProgressChanged += delegate(object s, ProgressChangedEventArgs args) { txtMessages.Text = "Contacting Server"; }; worker.RunWorkerCompleted += delegate(object s, RunWorkerCompletedEventArgs args) { txtMessages.Text = "Completed Successfully"; }; worker.RunWorkerAsync(); }

  Read the article

• jQuery modal dialog on ajaxStart event

  - by bdl

  I'm trying to use a jQuery UI modal dialog as a loading indicator via the ajaxStart, ajaxStop / ajaxComplete events. When the page fires, an Ajax handler loads some data, and the modal dialog shows just fine. However, it never hides or closes the dialog when the Ajax event is complete. It's a very small bit of code from the local server that is returned, so the actual Ajax event is very quick. Here's my actual code for the modal div: $("#modalwindow").dialog({ modal: true, height: 50, width: 200, zIndex: 999, resizable: false, title: "Please wait..." }) .bind("ajaxStart", function(){ $(this).show(); }) .bind("ajaxStop", function(){ $(this).hide(); }); The Ajax event is just a plain vanilla $.ajax({}) GET method call. Based on some searching here and Google, I've tried altering the ajaxStop handler to use $("#modalwindow").close(), $("#modalwindow").destroy(), etc. (#modalwindow referred to here as to give explicit context). I've also tried using the standard $("#modalwindow").dialog({}).ajaxStart(... as well. Should I be binding the events to a different object? Or calling them from within the $.ajax() complete event? I should mention, I'm testing on the latest IE8, FF 3.6 and Chrome. All have the same / effect.

  Read the article

• Stuggling with webkit-transition in javascript

  - by Mungbeans

  I've tried a few variations of using webkit-transition that I've found from googling but I've not been able to get any to work. I have some audio controls that I make appear on a click event, they appear suddenly and jerky so I want to fade them in. The target browser is iOS so I am trying webkit extensions. This is what I currently have: <div id = "controls"> <audio id = "audio" controls></audio> </div> #controls { position:absolute; top: 35px; left:73px; height: 20px; width: 180px; display:none; } #audio { opacity:0.0; } audio.src = clip; audio.addEventListener('pause', onPauseOrStop, false); audio.addEventListener('ended', onPauseOrStop, false); audio.play(); audioControls.style.display = 'block'; audio.style.setProperty("-webkit-transition", "opacity 0.4s"); audio.style.opacity = 0.7; The documentation for webkit-transition says it takes effect on a change in the property, so I was assuming changing style.opacity in the last line would kick it off. The controls appear with an opacity of 0.7 but I want it to fade in and that animation isn't happening. I also tried this: #audio { opacity:0.0; -webkit-transition-property: opacity; -webkit-transition-duration: 1s; -webkit-timing-function: ease-in; } Also tried audio.style.webkitTransition = "opacity 1.4s"; from this posting How to set CSS3 transition using javascript? I can't get anything to work, I'm testing on iOS, Safari desktop and Chrome. Same non result on all of them.

  Read the article

• wpf 4 datagrid not highlighting row.

  - by SteveCav

  I have a shiny new wpf 4 datagrid, and no matter what I do I can't make the row highlight when the user clicks on a cell. It works on the empty "new record" row on the bottom, but not on rows with data (yes I've tried with and without readonly). My XAML is: <DataGrid AutoGenerateColumns="False" Background="Beige" Height="353" SelectionUnit="FullRow" SelectionMode="Single" AlternatingRowBackground="lightcyan" HorizontalAlignment="Left" Name="dgJobs" VerticalAlignment="Top" Width="1160"> <DataGrid.Columns> <DataGridTextColumn Header="Job ID" Width="80" Binding="{Binding JobID}" IsReadOnly="True"></DataGridTextColumn> <DataGridTextColumn Header="Site" Width="SizeToCells" Binding="{Binding AssetName}" IsReadOnly="True"></DataGridTextColumn> <DataGridTextColumn Header="Category" Width="SizeToCells" Binding="{Binding CategoryName}" IsReadOnly="True"></DataGridTextColumn> <DataGridTextColumn Header="Status" Width="SizeToCells" Binding="{Binding JobStatusDesc}" IsReadOnly="True"></DataGridTextColumn> <DataGridTextColumn Header="Reason" Width="SizeToCells" Binding="{Binding Reason}" IsReadOnly="True"></DataGridTextColumn> </DataGrid.Columns> </DataGrid> Nothing too fancy, it's quite plain really. I had themes enabled because I'm using a Fluent Ribbon elsewhere and it forces you to, but I tried turning that off and it had no effect. I have a 3.5 form in another app which is also very plain and you can highlight the row on it. Why on earth isn't this one working?

  Read the article

< Previous Page | 225 226 227 228 229 230 231 232 233 234 235 236  | Next Page >