Search Results

Search found 47615 results on 1905 pages for 'make it useful keep it simple'.

Page 384/1905 | < Previous Page | 380 381 382 383 384 385 386 387 388 389 390 391  | Next Page >

• Real average filesize in a set of files...

  - by JD

  Hi, I have an apparently "simple" problem but I can't find the solution for some reason... I have n millions files of different sizes and I want to find the average filesize. To simplify it, I grouped them in multiples of 16KB. < 16 KB = 18689546 files < 32 KB = 1365713 files < 48 KB = 1168186 files ... Of course, the simple (total_size / number of files) does not work. It gives an average of 291KB... What would be the algorithm to calculate the real average...? Thx, JD

  Read the article

• Hidden Features of ASP.NET

  - by Vaibhav

  There are always features that would be useful in fringe scenarios, but for that very reason most people don't know them. I am asking for features that are not typically taught by the text books. What are the ones that you know?

  Read the article

• DataBinding a DropDownList in ASP.NET MVC 2

  - by Daniel Coffman

  I'm extremely frustrated trying to switch to MVC after a couple years of webforms development. Here's my extremely simple problem that I can't manage to solve: I have a list of States in a table called StateProvince. I have a DropDownList. I want the DropDownList to display all of the States in the StateProvince table and post the selected state back on HTTP PUT. This is what I'm doing: <%: Html.DropDownListFor(model = model.StateProvinceId, new SelectList(Model.StateProvinces, "StateProvinceId", "Name") )% I'm getting an Object reference not set to an instance of an object. Why? How can I make this work? Keep it simple, I know nothing about MVC.

  Read the article

• set label value in vb.net

  - by julio

  Hi-- I'm usually a PHP guy but got stuck doing a project in vb.net. I have a query (sqldatasource) that returns a single value (the last update date). I want to use a label to say something like "Last updated: " < Label = (returned value) In PHP this would be simple. In vb.net, all I can find are endless badly written code behinds showing how you'd execute the query onLoad then bind it to the label. Is this really the only way to do this? It seems like a ridiculously simple problem to have such a long solution. I have used a datagrid control to just bind the query result directly, but it prints the column name as well as the date, so it's not ideal. Any ideas?

  Read the article

• Facebook Connect iPhone StreamDialog delegate dialogDidSucceed

  - by JohnPayne

  Hey. I use FBStreamDialog to let users publish on their news feed. [fbStreamDialog show]; makes the dialog view popup, the user can press cancel or submit that message. Now...my problem is that both buttons close the dialog view and call the delegate method dialogDidSucceed. How do I find out which button was pressed? Its very important for me to know, any useful advice would be reaally really nice! Thanks, John

  Read the article

• How to reduce compilation times with Boost Asio

  - by Artyom

  Boost.Asio is great library but it has one huge drawback -- extreamly slow compilation times. A simple implementation (really simple) of HTTP protocol (about 1k lines of code) requires about 13.5s to compile under GCC 4.4! I tryed to use PCH but it does not improve compilation times too much (about 1s. only). So are there any tutorials on how to make Boost.Asio compilation times faster? For example what headers should I exactly include for what class. I use for example: io_service, tcp::ip::sockets, tcp::ip::acceptor, deadline_timer, buffers and few functions like async_read, async_write. Any suggestions? P.S.: I do use pimpl whenever I can.

  Read the article

• An extended Bezier Library or Algorithms of bezier operations

  - by Sorush Rabiee

  Hi, Is there a library of data structures and operations for quadratic bezier curves? I need to implement: bezier to bitmap converting with arbitrary quality optimizing bezier curves common operations like subtraction, extraction, rendering etc. languages: c,c++,.net,python Algorithms without implementation (pseudocode or etc) could be useful too. (especially optimization)

  Read the article

• What is a .NET app domain?

  - by Luke

  In particular, what are the implications of running code in two different app domains? How is data normally passed across the app domain boundary? Is it the same as passing data across the process boundary? I'm curious to know more about this abstraction and what it is useful for. EDIT: Good existing coverage of AppDomains in general at http://stackoverflow.com/questions/622516/i-dont-understand-appdomains

  Read the article

• WPF data grid - Column Header not aligned with data rows

  - by Pawan

  Hi, I am using Datagrid in WPF. This is a very simple and basic implementation. I not using any styles. I created a simple datagrid : <dg:DataGrid x:Name="dg" > </dg:DataGrid> and populated it with data as: dg.ItemsSource = " H E L L O W O R L D!".Split(); Grid gets properly populated but the columnheader of the grid is drawn with some offset. Due to this my data and header are mis aligned. I tried searching for this over net but I haven't found anything. This seems to be a straightforward implementation which is working for everyone except me :(. Can anyone please tell me what might be going wrong? I have tried using different data sets and appyling some style to test this. Thanks in advance.

  Read the article

• how to manage a "resource" array efficiently

  - by Haiyuan Zhang

  The senario of my question is that one need to use a fixed size of array to keep track of certain number of "objects" . The object here can be as simply as a integer or as complex as very fancy data structure. And "keep track" here means to allocate one object when other part of the app need one instance of object and recyle it for future allocation when one instance of the object is returned .Finally ,let me use c++ to put my problme in a more descriptive way . #define MAX 65535 /* 65535 just indicate that many items should be handled . performance demanding! */ typedef struct { int item ; }Item_t; Item_t items[MAX] ; class itemManager { private : /* up to you.... */ public : int get() ; /* get one index to a free Item_t in items */ bool put(int index) ; /* recyle one Item_t indicate by one index in items */ } how will you implement the two public functions of itemManager ? it's up to you to add any private member .

  Read the article

• Django: test failing on a view with @login_required

  - by Esteban Feldman

  Hi all, I'm trying to build a test for a view that's decorated with @login_required, since I failed to make it work, I did a simple test and still can't make it pass. Here is the code for the simple test and the view: def test_login(self): user = self._create_new_user() self.assertTrue(user.is_active) login = self.client.login(username=user.username, password=self.data['password1']) self.failUnless(login, 'Could not log in') response = self.client.get('/accounts/testlogin/') self.assertEqual(response.status_code, 200) @login_required def testlogin(request): print 'testlogin !! ' return HttpResponse('OK') _create_new_user() is saving the user and there is a test inside that method to see that is working. The test fails in the response.status_code, returning 302 and the response instance is of a HttpResponseRedirect, is redirecting it as if not logged in. Any clue? I'm missing something? Regards Esteban

  Read the article

• What language(s) should I learn to write web apps, iPhone apps, and websites?

  - by Gabe

  I'm in the process of learning C++. But there's so much more that I want to do online - web apps, iphone apps, websites. So I'm thinking of learning another language, one that would allow me to make (or at least attempt to make) useful applications. Now, what language should I look into learning? And, how do you recommend I go about learning it?

  Read the article

• Components for creating Archives

  - by John

  Hello, I'm searching for a simple,free component for creating archives with the capability of adding files to an already existing archive.Compressions is not a matter as much as performance so even "store" will be useful. Please help me find one.

  Read the article

• How can I do Input/Output on a console with MASM?

  - by Malfist

  I've googled and googled, and I've not found anything useful. How can I send output to the console, and accept user input from the console with assembly? I'm using MASM32

  Read the article

• How to change datagrid cell's itemRenderer dynamically

  - by Shubham Goyal

  i have a simple datagrid having 2 columns named as image and place. where image column has mx.controls.Image itemRenderer and place is simple. my requirement is to change itemRenderer of image cell when it will be clicked. i means to say when user click on any image from image column than i want to show that image path in editable mode and when user edit that path then the selected cell will start displayed the updated image. i dont know how to do this and getting depressed . please anyone help me ! :(

  Read the article

• Adding links to full change forms for inline items in django admin?

  - by David Eyk

  I have a standard admin change form for an object, with the usual StackedInline forms for a ForeignKey relationship. I would like to be able to link each inline item to its corresponding full-sized change form, as the inline item has inlined items of its own, and I can't nest them. I've tried everything from custom widgets to custom templates, and can't make anything work. So far, the "solutions" I've seen in the form of snippets just plain don't seem to work for inlines. I'm getting ready to try some DOM hacking with jQuery just to get it working and move on. I hope I must be missing something very simple, as this seems like such a simple task! Using Django 1.2.

  Read the article

• Restrict access to connection pool in Weblogic?

  - by Andrew White

  In short, how can I restrict access to connection pool X based on application name or JAR name? A simple use case might help... A business web-app (call it WEB_APP_A) uses pool Y to do basic look-up SQL. Some users of this web-app have access to also update some sensitive data in the database. This code is provided by a JAR file (call it HR_JAR) that can be dropped in where needed. This JAR uses pool X for all of it's connections. We don't want developers of WEB_APP_A using pool X. We only want HR_JAR using pool X. This is to keep devs of WEB_APP_A from accidentally or intentionally abusing the access pool X provides. Some considerations: This is legacy code so HR_JAR is here to stay We are running on Weblogic 9.2 We can not keep passwords in any from in the source code We have researched weblogic user level authn/authz for JDBC resources but then this begs the question; how do we secure the user creds we use to become a user per app/jar? Ideas? Thoughts? I can elaborate more on what I have tried, but I wanted fresh ideas.

  Read the article

• Remove registry key during uninstall

  - by zacharyrsnow

  Hello there. I have a simple C# application that allows users to specify that it should be (or should not be) started with Windows; it does so by setting (or deleting) a registry key (namely, ...\Software\Microsoft\CurrentVersion\Run\MyApplicationHere). I am using a VS setup project to create the installer for this program. I don't want the installer to create this key; it should only be created when the user selects the option from within the program. Here is the issue: I would like the uninstaller to delete this key if it exists, preferably without resorting to any sort of hackery; if there is a simple "built-in" solution I would love to hear it. Thanks!

  Read the article

• Implementation code of native methods

  - by Tapas Bose

  At first I want to let you know that this question is not related with What is native implementation in Java. I got many useful information from that thread. I want to know that are the codes of the native implementations available? I have jdk source code but I can not find the native codes for System.currentTimeMillis or Runtime.getRuntime().availableProcessors() or other native method. Thanks and regards.

  Read the article

• Is the WCF REST Starter Kit still current?

  - by jonhobbs

  I've been researching the possibility of building a REST service in .net and came across the WCF REST Starter Kit. It looks useful but the latest preview release came out over a year ago and there doesn't seem to be a production release. Does that mean it's not being worked on by MS any more? Has it been superseded by something better?

  Read the article

• JTable.setRowHeight prevents me from adding more rows

  - by Brent Parker

  I'm working on a pretty simple Java app in order to learn more about JTables, TableModels, and custom cell renderers. The table is a simple table with 8 columns only with text in them. When you click on an "add" button, a dialog pops up and lets you enter the data for the columns. Now to my problem. One of the columns (the last one) should allow for multiple lines of text. I'm already putting HTML into the field, but it is not wrapping. I did some research and looked into JTable#setRowHeight(). However, once I use setRowHeight, I can no longer add rows to the table. The data is put into the table model, but it does not show in the table. If I remove the setRowHeight line, then it adds data just fine. Is there another step to adding data to my data model that I'm missing? Thanks a lot!

  Read the article

• Javascript function push problem

  - by Stefan

  Hello i've following JS function. responseData:function(resp){ this.jsondata = eval('(' + resp + ')'); this.propList = []; for (var i = 0;i<this.jsondata.length;i++) { for (obj in this.jsondata[i]) { alert(obj); //shows the property name of obj this.propList.push({ obj : this.jsondata[i][obj] //insert only simple obj string }); } } return this.propList; } I want to insert in my propList the property name and the value, but instead inserting the property name this function inserts simple 'obj' as a string. What i'm doing wrong? greetings Stefan

  Read the article

• What is the best folder stucture in TFS for reporting service projects

  - by Dave

  Hi, I'm looking for some help on deciding a useful folder stucture strategy for reporting service projects in TFS. Does any one have some suggestions on which way I should stucture TFS? Should it be a project per report or should it be one Reporting project with multiple folders under the main that contain all the report projects? i.e. Senario 1 (separate projects for each report project) $ReportProject1 $ReportProject2 $ReportProject3 Senario 2 (Main report project in TFS and subfolders with report projects) $ReportingServices ------Src ---------Project1 -----------ReportProject1 files ---------Project2 -----------ReportProject2 files ---------Project3 -----------ReportProject3 files

  Read the article

• How to implement Xml Serialization with inherited classes in C#

  - by liorafar

  I have two classes : base class name Component and inheritd class named DBComponent [Serializable] public class Component { private string name = string.Empty; private string description = string.Empty; } [Serializable] public class DBComponent : Component { private List<string> spFiles = new List<string>(); // Storage Procedure Files [XmlArrayItem("SPFile", typeof(string))] [XmlArray("SPFiles")] public List<string> SPFiles { get { return spFiles; } set { spFiles = value; } } public DBComponent(string name, string description) : base(name, description) { } } [Serializable] public class ComponentsCollection { private static ComponentsCollection instance = null; private List<Component> components = new List<Component>(); public List<Component> Components { get { return components; } set { components = value; } } public static ComponentsCollection GetInstance() { if (ccuInstance == null) { lock (lockObject) { if (instance == null) PopulateComponents(); } } return instance; } private static void PopulateComponents() { instance = new CCUniverse(); XmlSerializer xs = new XmlSerializer(instance.GetType()); instance = xs.Deserialize(XmlReader.Create("Components.xml")) as ComponentsCollection; } } } I want read\write from a Xml file. I know that I need to implement the Serialization for DBComponent class otherwise it will not read it.But i cannot find any simple article for that. all the articles that I found were too complex for this simple scenario. The Xml file looks like this: <?xml version="1.0" encoding="utf-8" ?> <ComponentsCollection> <Components> <DBComponent Name="Tenant Historical Database" Description="Tenant Historical Database"> <SPFiles> <SPFile>Setup\TenantHistoricalSP.sql</SPFile> </SPFiles> </DBComponent> <Component Name="Agent" Description="Desktop Agent" /> </Components> </ComponentsCollection> Can someone please give me a simple example of how to read this kind of xml file and what should be implemented ? Thanks Lior

  Read the article

• How to stop emacs from replacing underbar with <- in ess-mode

  - by SetJmp

  ess-mode is "Emacs speaks statistics." This mode is useful for editing programs for R or Splus (two separate statistics packages). In my buffer, when ever I type '_' the character is replaced with "<-" which is very frustrating. Is there a emacs lisp statement to turn off this behavior? Thanks, SetJmp emacs: 22.1.1 ess-mode release (unknown)

  Read the article

< Previous Page | 380 381 382 383 384 385 386 387 388 389 390 391  | Next Page >