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  • Wpf. Chart optimization. More than million points

    - by Evgeny
    I have custom control - chart with size, for example, 300x300 pixels and more than one million points (maybe less) in it. And its clear that now he works very slowly. I am searching for algoritm which will show only few points with minimal visual difference. I have link to component which have functionallity exactly what i need (2 million points demo): http://www.mindscape.co.nz/demo/SilverlightElements/demopage.html#/ChartOverviewPage I will be grateful for any matherials, links or thoughts how to realize such functionallity.

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  • c# ProcessCmdKey overload, match generic combination

    - by leo
    Hi all, On some control, I want ProcessCmdKey to return true if the keys pressed by the user were ALT and any letter of the alphabet. I'm able to return true if the user presses Alt with the following code, but how can I add the condition of a letter also pressed ? protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { if ((keyData & Keys.Alt) != 0) { return true; } } Thanks.

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  • Does grails support logging from the src/java classes?

    - by rainyday
    I have a grails app (v 1.1.2) the logging is working fine from the groovy classes, but I can't get it to work from within a java source... I have a class in package com.mforms.devices., it imports apache log4j, defines the logger as follows private final org.apache.log4j.Logger loggy = Logger.getLogger(this.getClass()); then refer to it later by doing loggy.error("...") my Config.groovy has the following log4j = { error 'com.mforms' root { error 'stdout', 'file' additivity = true } } What am I doing wrong?!?!

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  • Clip a 4:3 image in WPF with a circle

    - by reckoner
    I am trying to clip a 4:3 image with a circle within a grid control. I need the circle clip to reveal the image from the middle in a perfect circle. See below. The circle should dynamically re-size with the image. I have tried Canvas.Clip and Ellipse+VisualBrush without achieving the correct behavior. Thanks!

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  • Starting timer from another project

    - by raj
    I have to projects in my .net windows forms, in one form(1st Project) i have timer control already running. On some request i want to start that timer from the form1 of (second project). If we are creating new object in second project for the 1st project(Which is currently in running thread) we will not be able to start the timer for the current instance. How can we access the current running instance from my 2nd project. Please suggest me some method

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  • Android 2.1 switch loop JRE 1.7

    - by Defuzer
    Hello how to use switch loop in my android project ? I want to use Android 2.1 I need JRE 1.7, but I want to use Android 2.1 I use loop like this: switch ((CHAR[Math.abs(intGen.nextInt()%2)])) { case "+": result = random2 + random3; break; case "-": result = random2 + random3; break; } LogCat: Cannot switch on a value of type String for source level below 1.7. Only convertible int values or enum variables are permitted

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  • How to use value in Application Settings load?

    - by monkey_boys
    private void Form1_FormClosing(object sender, FormClosingEventArgs e) { Properties.Settings.Default.Save(); } I used Application Settings and When Form was load i see value in control but i can't use its when Form load event. how to use value that bind from Application Settings when event Form1_Load ?

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  • Using OpenGL in a regular window (Win32)

    - by user146780
    I want to use OpenGL in my WndProc but I'm not sure how. I also don't want GL to occupy the whole screen, just a portion of the screen. In the end I basically want to make a drawing win32 app but use OGL instead of GDI. so how can I tell GL to use my control (a panel) 's hdc for drawing? Thanks

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  • CopyLZFileName/CreateLZFileName.. what does LZ means?

    - by kiddo
    I am gathering small information regarding kernel dll functions.. and I found this function called CopyLZFileName/CreateLZFileName and some other functions related to this LZ.. I googled for it.. I cant find a proper source for it. From the name I guess it copies/creates file but am not sure what kind of file.. does LZ mean something to it. Please let me know.

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  • use javascript to read a link resource without ajax

    - by user156153
    Not sure if it's possible but how do I read a resource from a url using javascript without ajax? for example, the following url is a static text file containing json encoded text http://mysite.s3.amazonaws.com/jsonencodedcontent.txt I'd like to use javascript to read the content from above link, read the json content into a javascript variable. I can't use ajax because of cross site and I have no control over amazon S3 domain. anyway to achieve this?

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  • Why would you use the ternary operator without assigning a value for the "true" condition?

    - by RickNotFred
    In the Android open-source qemu code I ran across this line of code: machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */ It this just a confusing way of saying: if (machine->max_cpus) { ; //do nothing } else { machine->max_cpus = 1; } If so, wouldn't it be clearer as: if (machine->max_cpus == 0) machine->max_cpus = 1; Interestingly, this compiles and works fine with gcc, but doesn't compile on http://www.comeaucomputing.com/tryitout/ .

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  • IE 8 install how to get version 8.0.6001.18702

    - by Robin
    I am having trouble installing the latest version of IE namely version 8.0.6001.18702. I downloaded the install from Microsoft but when the install is completed, the version number is reported as IE 8.0.6001.18702IC. This version does not work on all web applications and I need to get the correct final version installed. The problem is compounded by the installation downloading any updates from the Microsoft site so that there is no real control over the final version you get. Any ideas?

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  • problem with XSLT

    - by sindhu
    Hi all, I am trying to create a html based template with xslt transformation.The string result returned by the transformer is perfectly fine.but when i try to send it to display, the browser is not interpreting it. The output looks like<html><body>...</body></html>. when i do view source it is displaying &lt;html&gt;... How can i resolve it?Please help. Thanks in advance

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  • Security issue with tiny browser

    - by jasmine
    I have used tinybrowser with tiny mce as a plugin (My panel is php based). When uploading, there is link like this: www.****.com/dashboard/tiny_mce/plugins/tinybrowser/tinybrowser.php?type=image This link can open in all browser without permission. What is the solution in this case? Could I use admin panel's session control in tinyMce plugins?? Thanks in advance

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  • Does the .NET Framework 4.0 intaller installs .NET 3.5 as well?

    - by John Doe
    .NET 4.0 is meant to run side-by-side with 3.5 and won't run 3.5 apps, which is making me worried about having to instruct my users to download .NET 3.5 instead of just "the latest version". I've read in a blog that the 4.0 installer will install 3.5 as well if it's not already installed but I can't test it right now, did anyone try this or have an answer from a trusted source?

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  • How do I achieve virtual attributes in CakePHP (using code, not SQL) as implemented in Ruby on Rails

    - by ash
    Source: http://asciicasts.com/episodes/16-virtual-attributes I'd like to achieve a similar setup as below, but in CakePHP and where the virtual attributes are created using code, not SQL (as documented at http://book.cakephp.org/view/1070/Additional-Methods-and-Properties#Using-virtualFields-1590). class User < ActiveRecord::Base # Getter def full_name [first_name, last_name].join(' ') end # Setter def full_name=(name) split = name.split(' ', 2) self.first_name = split.first self.last_name = split.last end end

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  • IIS headers of aspx page appear on page sometimes, any idea why?

    - by Chris
    At random this output it occurring at the top of the page. Site is installed on a lot of servers issue only happens on one server. HTTP/1.1 200 OK Date: Mon, 24 May 2010 04:18:30 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET X-AspNet-Version: 2.0.50727 Cache-Control: private Content-Type: text/html; charset=utf-8 Content-Length: 39611

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  • Problem using FormView to insert.

    - by matthew_360
    I have a formview control, and on the ItemCreated event, I am "priming" some of the fields with default values. However, when I try to use the formview to insert, before the ItemInserting event gets called, for some reason it calls ItemCreated first. That results in the fields being over-written with the default values right before the insert happens. How do I get it to not call the ItemCreated event before the ItemInserting event?

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