Monthly Archives

Articles indexed in April 2010

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 272/3251 | < Previous Page | 268 269 270 271 272 273 274 275 276 277 278 279  | Next Page >

  • C# object (2 numbers) performing 2 calculations

    - by Chris
    I have a couple questions about creating a object (2 values) and how to "call" it. Initializing the object with: Tweetal t1, t2, t3, t4, t5, t6; t1 = new Tweetal(); //a: 0 , b = 0 t2 = new Tweetal(-2); //a: -2, b = -2 t3 = new Tweetal(5, 17); //a: 5, b = 17 t4 = new Tweetal(t3); //a:5, b = 17 Console.Write("t1 = " + t1); Console.Write("\tt2 = " + t2); Console.Write("\tt3 = " + t3); Console.Write("\tt4 = " + t4); Console.WriteLine("\n"); t1 = t1.Som(t2); t4 = t2.Som(t2); //...... Now the 2 things i want to do with this object are taking the SUM and the SUMNumber: Sum: t4 = t2.sum(t3); (this would result in t4: a:3 (-2+5), b: 15(-2+17) SumNumber: t1 = t3.sum(8) (this would result in t1: a:13 , b:25) Next is my code for the object (in a separate class), but how exactly do i perform the simple sum calculation when i call up for example t2 etc... public class Tweetal: Object { private int a; private int b; public Tweetal() { //??? //Sum(...,...) } public Tweetal(int a) { //??? //Sum(...,...) } public Tweetal(int a, int b) { //??? } public Tweetal(Tweetal //....) // to call upton the object if i request t1, t2, t3,... insteed of a direct number value) { // ???? } public void Sum(int aValue, int bValue) { //a = ??? //b = ??? //Sum(...,...) } public void SumNumber(int aValue, int bValue) { } public override string ToString() { return string.Format("({0}, {1})", a, b); }/*ToString*/ }

    Read the article

  • $.ajax not loading data data everytime from server

    - by Ted
    I have written a simple jQuery.ajax function which loads a user control from the server on click of a button. The first time I click the button, it goes to the server and gets me the user control. But each subsequent click of the same button does not goes to the server to fetch me the user control. Since my user control fetches data from db, I need to reload the user control everytime i hit the button. But if anyhow I get my user control to unload from the page, and re-click the button, it goes to the server and fetches me the user control. Here's the code: $("#btnLoad").click(function() { if ($(this).attr("value") == "Load Control") { $.ajax({ url: "AJAXHandler.ashx", data: { "lt": "loadcontrol" }, dataType: "html", success: function(data) { content.html(data); } }); $(this).attr("value", "Unload Control"); } else { $.ajax({ url: "AJAXHandler.ashx", data: { "lt": "unloadcontrol" }, dataType: "html", success: function(data) { content.html(data); } }); $(this).attr("value", "Load Control"); } }); Please let me know if there is any other way I can get my user control loaded from server everytime I click the button.

    Read the article

  • YAQ: Yet Another Question

    - by Jerome WAGNER
    When you have to code something, you can either : start from scratch (Yet Another approach) fork another existing project participate in an existing project to add the features you miss What do you think are the keys aspects that make you choose option 1, 2 or 3 ?

    Read the article

  • .net Attributes that handle exceptions - usage on a property accessor

    - by Mr AH
    Hi, well I know from my asp.net mvc experience that you can have attributes that handle exceptions (HandleErrorAttribute). As far as I can tell the Controller class has some OnException event which may be integral to this behaviour. However, I want to do something similar in my own code: dream example: public String MyProperty { [ExceptionBehaviour(typeof(FormatException), MyExEnum.ClearValue)] set { _thing.prop = Convert.ToThing(value); } } .... The code above obviously makes very little sense, but is close to the kind of thing I wish to do. I want the attribute on the property set accessor to catch some type of exception and then deal with this in some custom way (or even just swallow it). Any ideas guys?

    Read the article

  • Extracting a string between specified characters in python

    - by Seth
    I'm a newbie to regular expressions and I have the following string: sequence = ["{\"First\":\"Belyuen,NT,0801\",\"Second\":\"Belyuen,NT,0801\"}","{\"First\":\"Larrakeyah,NT,0801\",\"Second\":\"Larrakeyah,NT,0801\"}"] I am trying to extract the text Belyuen,NT,0801 and Larrakeyah,NT,0801 in python. I have the following code which is not working: re.search('\:\\"...\\', ''.join(sequence)) I.e. I want to get the string between characters :\ and \.

    Read the article

  • custom Progress Dialog in android?

    - by androidbase Praveen
    i follow the step in the customdialog example in the documentation. but get htis exception . any idea? 04-03 18:50:28.787: VERBOSE/Bru_Press_Tab(750): Exception in Tabsjava.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.brown/com.example.brown.Bru_Press_MostRecent}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content

    Read the article

  • Anyone have experience calling Rake from MSBuild for code gen and other benefits? How did it go? Wha

    - by Charlie Flowers
    While programming in C# using Visual Studio 2008, I often wish for "automatic" code generation. If possible, I'd like to achieve it by making my MSBuild solution file call out to Rake, which would call Ruby code for the code generation, having the resulting generated files automatically appear in my solution. Here's one business example (of many possible examples I could name) where this kind of automatic code generation would be helpful. In a recent project I had an interface with some properties that contained dollar amounts. I wanted a second interface and a third interface that had the same properties as the first interface, except they were "qualified" with a business unit name. Something like this: public interface IQuarterlyResults { double TotalRevenue { get; set; } double NetProfit { get; set; } } public interface IConsumerQuarterlyResults { double ConsumerTotalRevenue { get; set; } double ConsumerNetProfit { get; set; } } public interface ICorporateQuarterResults { double CorporateTotalRevenue { get; set; } double CorporateNetProfit { get; set; } } In this example, there is a "Consumer Business Unit" and a "Corporate Business Unit". Every property on IQuarterlyResults becomes a property called "Corporate" + [property name] on ICorporateQuarterlyResults, and likewise for IConsumerQuarterlyResults. Why make interfaces for these, rather than merely having an instance of IQuarterlyResults for Consumer and another instance for Corporate? Because, when working with the calculator object I was building, the user had to deal with 100's of properties, and it is much less confusing if he can deal with "fully qualified" property names such as "ConsumerNetProfit". But let's not get bogged down in this example. It is only an example and not the main question. The main question is this: I love using Ruby and ERB for code generation, and I love using Rake to manage dependencies between tasks. To solve the problem above, what I'd like to do is have MSBuild call out to Rake, and have Rake / Ruby read the list of properties on the "core" interface and then generate the code to make all the dependent interfaces and their properties. This would get triggered every time I do a build, because I'd put it into the MSBuild file for the VS.NET solution. Has anyone tried anything like this? How did it work out for you? What insights can you share about pros, cons, tips for success, etc.? Thanks!

    Read the article

  • External hard drive encryption

    - by Kragen
    I've got a complete backup of my main PC on 1.5 TB external hard drive that I carry around with my laptop so I can have access to all of my files while I'm on the move, however it has just dawned on me that if someone nicks my external hard drive they now have access to everything! Hence I'm looking for a way to encrypt my external hard drive. I'm after something that is: Secure (if I need to carry around a USB dongle to keep the key on so be it) Fast (the performance of the drive should still be reasonable) Cross-platform (I regularly use other peoples computers - Sometimes they are not windows based and might not even have internet access, however I still want to be able to access my files) Cheap (preferably free / open source!)

    Read the article

  • Mysql Syntax :You have an error in your SQL syntax....

    - by jasmine
    I have written very very very!!! simple function: function editCategory() { $ID = urlencode($_GET['id']); $cname = mysql_fix_string($_POST['cname']); $kabst = mysql_fix_string($_POST['kabst']); $kselect = $_POST['kselect']; $subsl = $_POST['subsl']; $kradio = $_POST['kradio']; $ksubmit = $_POST['ksubmit']; if (isset($ksubmit)) { $query = "UPDATE category SET name = '$cname', description = '$kabst', published = '$kselect', home = '$kradio', subcat = '$subsl' WHERE id = $ID "; $result = mysql_query($query); if (mysql_affected_rows () == 1) { echo "ok"; } else{ echo mysql_error(); } } } error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 what is wrong? :(

    Read the article

  • Problem with anonymouse delegate within foreach

    - by geting
    public Form1() { InitializeComponent(); Collection<Test> tests = new Collection<Test>(); tests.Add(new Test("test1")); tests.Add(new Test("test2")); foreach (Test test in tests) { Button button = new Button(); button.Text = test.name; button.Click+=new EventHandler((object obj, EventArgs arg)=>{ this.CreateTest(test); }); this.flowLayoutPanel1.Controls.Add(button); } } public void CreateTest(Test test) { MessageBox.Show(test.name); } } when i click the button witch text is 'test1', the messagebox will show 'test2',but my expect is 'test1'. So ,would anyone please tell me why or what`s wrong with my code.

    Read the article

  • Why exactly is eval evil?

    - by Jay
    I know that Lisp and Scheme programmers usually say that eval should be avoided unless strictly necessary. I´ve seen the same recommendation for several programming languages, but I´ve not yet seen a list of clear arguments against the use of eval. Where can I find an account of the potential problems of using eval? For example, I know the problems of GOTO in procedural programming (makes programs unreadable and hard to maintain, makes security problems hard to find, etc), but I´ve never seen the arguments against eval. Interestingly, the same arguments against GOTO should be valid against continuations, but I see that Shemers, for example, won´t say that continuations are "evil" -- you should just be careful when using them. They´re much more likely to frown upon code using eval than upon code using continuations (as far as I can see -- I could be wrong).

    Read the article

  • Best practices or tools for installing a SQL Server database

    - by Maestro1024
    Best practices or tools for installing a SQL Server database I have a SQL Server database designed with the SQL Server GUI database editor/Visual Studio. What is the best way to "install" that database on other systems. Said another way how should I ship this thing? I know I can save the scripts and set the primary/foreign keys with T-SQL but I suspect their is something better. I guess you could have people restore from backup but that does not seem very professional. What other choices are there and what are the pluses and minuses?

    Read the article

  • Controlling images of nodes in a TreeView

    - by ET
    I am trying to make a folder explorer using TreeView control. now, I added an ImageList with two images - one for a folder and the other for selected folder. I used the 'BeforeExpand' event to change the icon of the current node (folder). The problem is that I dont know how to change it back when the user selects other folder... what event can I use? Maybe I dont use it right... ?

    Read the article

  • how to parse a UUID in C#

    - by frosty
    On success of a web service i receive a UUID. ie "C3D668DC-1231-3902-49318B046AD48A5F" I need to validate this. I've tried Guid responseId = new Guid("C3D668DC-1231-3902-49318B046AD48A5F"); But it doesn't parse? is there another .net method i should use.

    Read the article

  • "KeyPress" event for WinForms textbox is missing?

    - by eibhrum
    I am trying to add an "KeyPress" event in a textbox (WinForm) this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(CheckKeys); and here's inside the 'CheckKeys': private void CheckKeys(object sender, System.Windows.Forms.KeyPressEventArgs e) { if (e.KeyChar == (char)13) { // Enter is pressed - do something } } The idea here is that once a textbox is in focus and the 'Enter' button was pressed, something will happen... However, my machine cannot find the 'KeyPress' event. Is there something wrong with my codes? UPDATE: I also tried putting KeyDown instead of KeyPress: private void textBox1_KeyDown(object sender, System.Windows.Input.KeyEventArgs e) { if (e.Key == Key.Return) // Enter is pressed - do something } } Still not working though...

    Read the article

  • Nginix upstream with socket seems filter some meta contents?

    - by Cheng
    I have a Rails3 app in the backend, served by ruby server Thin. If I run and map thin as a socket server unix:/tmp/thin.draft.sock; Some meta data in the HTML will be missing. <script src="/javascripts/application.js?1269808943" type="text/javascript"></script> </head> But it should be <script src="/javascripts/application.js?1269808943" type="text/javascript"></script> <meta name="csrf-param" content="authenticity_token"/> <meta name="csrf-token" content="TPEA0Xa92wnPWnRLf+iUTk..."/> </head> If I run and map Thin at some port, it's all correct. server 127.0.0.1:3000; Wired problem. I'm going to check with Thin and Nginx. Any ideas?

    Read the article

  • How to Treat Race Condition of Session in Web Application?

    - by Morgan Cheng
    I was in a ASP.NET application has heavy traffic of AJAX requests. Once a user login our web application, a session is created to store information of this user's state. Currently, our solution to keep session data consistent is quite simple and brutal: each request needs to acquire a exclusive lock before being processed. This works fine for tradition web application. But, when the web application turns to support AJAX, it turns to not efficient. It is quite possible that multiple AJAX requests are sent to server at the same time without reloading the web page. If all AJAX requests are serialized by the exclusive lock, the response is not so quick. Anyway, many AJAX requests that doesn't access same session variables are blocked as well. If we don't have a exclusive lock for each requests, then we need to treat all race condition carefully to avoid dead lock. I'm afraid that would make the code complex and buggy. So, is there any best practice to keep session data consistent and keep code simple and clean?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 268 269 270 271 272 273 274 275 276 277 278 279  | Next Page >