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  • Display of colorblind images

    - by Michael
    Quick question: At this website here http://www.vischeck.com/examples/ there are a few pictures of numbers hidden within another color to test for color blindness. Is there any way that these images can be generated algorithmically?

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  • User created Validator wont call Client side validation Javascript on 'complex' user control.

    Hi All, I have created a user control (from System.Web.UI.UserControl), and created my own validator for the user control (from System.Web.UI.WebControls.BaseValidator). Everything works ok until I try to get the user control to do client side validation. While trying to debug this issue I have set 'Control to Validate' to a text box instead of the custom user control, and the client side script works fine! It appears to me that it has an a issue with my composite user control I have created. Has anyone encountered this issue before? Has anyone else seen client side validation fail on custom user controls? Some extra info : The composite control is a drop down list and 'loader image', as it is a ajax enabled drop down list (using ICallbackEventHandler). I know that the client side javascript is being written to the page, and have placed an alert('random message') as the first line in the validator function that only appears if it is validating a text box (i.e. not when it is validating my custom control) Language : C# (ASP.NET 2.0) and jQuery 1.2.6 in aspx file : <rms:UserDDL ID="ddlUserTypes" runat="server" PreLoad="true" /> <rms:DDLValidator ID="userTypesVal" ControlToValidate="ddlUserTypes" ErrorMessage="You have not selected a UserType" runat="server" Text="You have not selected a UserType" Display="Dynamic" EnableClientScript="true" /> in validator code behind protected string ScriptBlock { get { string nl = System.Environment.NewLine; return "<script type=\"text/javascript\">" + nl + " function " + ScriptBlockFunctionName + "(ctrl)" + nl + " {" + nl + " alert('Random message'); " + nl + " var selVal = $('#' + ctrl.controltovalidate).val(); " + nl + " alert(selVal);" + nl + " if (selVal === '-1') return false; " + nl + " return false; " + nl + " }" + nl + "</script>"; } } protected override void OnPreRender(EventArgs e) { if (this.DetermineRenderUplevel() && this.EnableClientScript) { Page.ClientScript.RegisterExpandoAttribute(this.ClientID, "evaluationfunction", this.ScriptBlockFunctionName); Page.ClientScript.RegisterClientScriptBlock(GetType(), this.ScriptBlockKey, this.ScriptBlock); } base.OnPreRender(e); } I know my ControlPropertiesValid() and EvaluateIsValid() work ok. I appreciate any help on this issue. Noel.

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  • Is the Keychain suitable for storing general data, such as strings?

    - by cannyboy
    The Keychain seems to be used a lot for usernames and passwords, but is it a good idea to use it for other sensitive stuff (bank details, ID numbers etc), but with no password? What kind of encryption does the keychain use? The scenario I'm concerned about is a thief acquiring an iPhone (which is screen-locked) and being able to access the file system to get this info. Also, would using the Keychain involve export restrictions due to the use of encryption?

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  • JQuery Cycle Plugin hover when paused issue, activeSlide

    - by user202141
    Almost all is dialed in except then I click the pause/play button, the current activeSlide div doesn't fade in on rollover like the other slides do. Bit at a loss to figure out why it's not allowing hover even though it works when the cycle is not manually paused (i.e. when just rolling over the pager numbers). Thanks for any guidance! http://www.xtracycle.com/home-test-a-rooney

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  • Java OCR package

    - by pstanton
    what is the best OCR package you've used with java? I need to parse mainly numbers in a single font and am looking for a well architected, lite weight library to use. thanks.

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  • Splitting a list in python

    - by mglmnc
    Hey im new to python. How do you get a portion of a list by the relative value of its sorting key. example... list = [11,12,13,14,15,16,1,2,3,4,5,6,7,8,9,10] list.sort() newList = list.split("all numbers that are over 13") assert newList == [14,15,16]

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  • Different Editors for one column in EditorGridPanel ExtJS

    - by Sloane
    Hi, I am trying to show/load different editor on different rows of a editorgridpanel. Like a textbox on one row combobox/superboxselect on another and it could be any order, random. The conditions which dictate which editor will be shown reside in the database. Please tell me if this is possible and if so, how do i go about it.. I have tried pulling the conditions asynchronously which are pulled on a click event for the respective column, but calling it async causes problems. Please advise

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  • two dimensional array [closed]

    - by Baiba
    Can someone please write to me source code in Java? I have a task: create a program, that contains two dimensional array (with numbers) and the programm needs to sum zeros in each column and then get out the number of column in which the zeros are least.. thanks!

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  • Jquery ui slide content along with scroll bar

    - by Linas
    Well i'm totaly lost here, i am using jquery ui sliderwidget to make this quite simple menu but i just can't figure out a basic formula to make menu items slide along with with scroll bar. Here is jsfiddle: http://jsfiddle.net/n2H6Q/4/ Please keep in mind that content height can change to any value that's why i have use random height, and container height can as well change to any value, that's why it is so difficult for me to figure out how to deal with all these numbers... Any kind of help would be very much appreciated.

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  • Regex string match?

    - by Andy
    I have a long string in javascript like var string = 'abc234832748374asdf7943278934haskhjdasfhjkdfas83421def8923487234897234897'; I am trying to match like abc234832748374 and def8923487234897 - that is - I have tried like string.match(\abc[^abc]|\def[^def]|) but that doesnt get me both strings because I need numbers after them ? Basically I need abc + 8 chars after and def the 8-11 chars after ? How can I do this ?

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  • Green Bars in Visual Studio 2010

    - by Braveyard
    I am wondering what these greens things are in Visual Studio 2010. What are they for? They look pretty random but of course they have to have some meaning. Can any one tell me? At first glance they don't mean any thing to me. Picture 1: Picture 2: Edit: They show saved changed content during the document open. Once you close the document they disappear.

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  • How to make an access database where both users with and without an ID number can make a transaction

    - by louise
    I am trying to create an access 2007 database that allows staff that already have ID numbers to make a transaction and also other guest users who do not have ID number make a transaction. What is the best way todo this in access? A transaction involves taking an item out of inventory. Therefore if one a user (staff or external) has an item out of inventory then no other users can get a hold of that item. Thanks, Any Ideas would be most appreciated!

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  • Searching through large data set

    - by calccrypto
    how would i search through a list with ~5 mil 128bit (or 256, depending on how you look at it) strings quickly and find the duplicates (in python)? i can turn the strings into numbers, but i don't think that's going to help much. since i haven't learned much information theory, is there anything about this in information theory? and since these are hashes already, there's no point in hashing them again

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  • What are the limitations of assembler? (NASM)

    - by citronas
    Is there a technical limitation of what kind of programs I can write with assembler (NASM)? For now I've only seem some program that do arithmetic operations, like adding two numbers. Is it possible to write complex assembler programs, that provide a GUI, access the file system, plays sounds et cetera? I know I wouldn't write such programs, but I'm curious, if there are technical limitations on what kind of programs I can write with assembler.

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  • javascript substring

    - by manu1001
    the most darndest thing! the following code prints out 'llo' instead of the expected 'wo'. i get such surprising results for a few other numbers. what am i missing here? alert('helloworld'.substring(5, 2));

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  • Resource.h in Windows API simple app

    - by nXqd
    there'are these lines in the sample Win32 app created default by VS. Can you explain why they're just numbers, and it's meaning :) //{{NO_DEPENDENCIES}} // Microsoft Visual C++ generated include file. // Used by Testing Project.rc // #define IDS_APP_TITLE 103 #define IDR_MAINFRAME 128 #define IDD_TESTINGPROJECT_DIALOG 102 #define IDD_ABOUTBOX 103 #define IDM_ABOUT 104 #define IDM_EXIT 105 #define IDI_TESTINGPROJECT 107 #define IDI_SMALL 108 #define IDC_TESTINGPROJECT 109 #define IDC_MYICON 2 #ifndef IDC_STATIC #define IDC_STATIC -1 #endif // Next default values for new objects // #ifdef APSTUDIO_INVOKED #ifndef APSTUDIO_READONLY_SYMBOLS #define _APS_NO_MFC 130 #define _APS_NEXT_RESOURCE_VALUE 129 #define _APS_NEXT_COMMAND_VALUE 32771 #define _APS_NEXT_CONTROL_VALUE 1000 #define _APS_NEXT_SYMED_VALUE 110 #endif #endif

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  • How to remove commas etc form a matrix in python

    - by robert
    say ive got a matrix that looks like: [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0]] how can i make it on seperate lines: [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0]] and then remove commas etc: 0 0 0 0 0 And also to make it blank instead of 0's, so that numbers can be put in later, so in the end it will be like: _ 1 2 _ 1 _ 1 (spaces not underscores) thanks

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  • B-trees, databases, sequential inputs, and speed.

    - by IanC
    I know from experience that b-trees have awful performance when data is added to them sequentially (regardless of the direction). However, when data is added randomly, best performance is obtained. This is easy to demonstrate with the likes of an RB-Tree. Sequential writes cause a maximum number of tree balances to be performed. I know very few databases use binary trees, but rather used n-order balanced trees. I logically assume they suffer a similar fate to binary trees when it comes to sequential inputs. This sparked my curiosity. If this is so, then one could deduce that writing sequential IDs (such as in IDENTITY(1,1)) would cause multiple re-balances of the tree to occur. I have seen many posts argue against GUIDs as "these will cause random writes". I never use GUIDs, but it struck me that this "bad" point was in fact a good point. So I decided to test it. Here is my code: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[T1]( [ID] [int] NOT NULL CONSTRAINT [T1_1] PRIMARY KEY CLUSTERED ([ID] ASC) ) GO CREATE TABLE [dbo].[T2]( [ID] [uniqueidentifier] NOT NULL CONSTRAINT [T2_1] PRIMARY KEY CLUSTERED ([ID] ASC) ) GO declare @i int, @t1 datetime, @t2 datetime, @t3 datetime, @c char(300) set @t1 = GETDATE() set @i = 1 while @i < 2000 begin insert into T2 values (NEWID(), @c) set @i = @i + 1 end set @t2 = GETDATE() WAITFOR delay '0:0:10' set @t3 = GETDATE() set @i = 1 while @i < 2000 begin insert into T1 values (@i, @c) set @i = @i + 1 end select DATEDIFF(ms, @t1, @t2) AS [Int], DATEDIFF(ms, @t3, getdate()) AS [GUID] drop table T1 drop table T2 Note that I am not subtracting any time for the creation of the GUID nor for the considerably extra size of the row. The results on my machine were as follows: Int: 17,340 ms GUID: 6,746 ms This means that in this test, random inserts of 16 bytes was almost 3 times faster than sequential inserts of 4 bytes. Would anyone like to comment on this? Ps. I get that this isn't a question. It's an invite to discussion, and that is relevant to learning optimum programming.

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  • Problems With Eclipse and Ruby Plugin

    - by Jesse J
    I installed Eclipse and then the Ruby Development Tools (RDT), but it would crash when I try to alter certain features, like having line numbers, how far back to have history, and the code coloring scheme didn't work fully. I decided to try to uninstall Eclipse by doing sudo aptitude remove eclipse and then sudo aptitude install eclipse but instead it installed it back with the broken Ruby plugin. I also tried aptitude purge but that didn't help either. How can I freshly reinstall eclipse and get a properly working Ruby plugin?

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