Search Results

Search found 31954 results on 1279 pages for 'dependency object'.

Page 801/1279 | < Previous Page | 797 798 799 800 801 802 803 804 805 806 807 808  | Next Page >

• C#: Func<T, TResult> for generic methods

  - by SDReyes

  It is possible to create a Func object what references a generic method? like the LINQ OrderBy: public static IOrderedEnumerable<TSource> OrderBy<TSource, TKey>( this IEnumerable<TSource> source, Func<TSource, TKey> keySelector )

  Read the article

• How to call Java method from C++

  - by fhucho

  Hi, I am using JNI to call my C++ function from Java. One of the C++ function's arguments is jobject thiz (as far as I know, all JNI native functions have this argument). The function takes quite long to complete and I want to report progress back to the jobject thiz Java object, so that I can show the progress to the user. How can I call jobject's methods from C++?

  Read the article

• Actual use of finally block

  - by Jibu P C_Adoor

  I asked to my friend about this question, he said that it is used for destroying the object created during the exception handling. But in c# GC is there for destroying such kinds of unused objects, then what is the actual use of finally block. Tell me with a scenario related to that.

  Read the article

• How can I convert a DOM element to a jQuery element?

  - by Tanmoy

  I am creating an element with document.createElement(). Now how can I pass it to a function that only takes a Jquery object? $("#id") I can not use it, as the element has not been rendered in the page yet.

  Read the article

• How do I serve a large file using Pylons?

  - by Chris R

  I am writing a Pylons-based download gateway. The gateway's client will address files by ID: /file_gw/download/1 Internally, the file itself is accessed via HTTP from an internal file server: http://internal-srv/path/to/file_1.content The files may be quite large, so I want to stream the content. I store metadata about the file in a StoredFile model object: class StoredFile(Base): id = Column(Integer, primary_key=True) name = Column(String) size = Column(Integer) content_type = Column(String) url = Column(String) Given this, what's the best (ie: most architecturally-sound, performant, et al) way to write my file_gw controller?

  Read the article

• which thread a BeginInvoke's callback of a asynchronous delegate is in?

  - by northTiger

  Which thread a BeginInvoke's callback of a asynchronous delegate is supposed to be in? UI thread or a Thread Pool thread. for example private void button1_Click(object sender, EventArgs e) { Func func1 = LoadingDada; func1.BeginInvoke(IsDone, func1); } string IsDone(...) { .... }

  Read the article

• Parsing timestamp with retarded Python

  - by jellybean

  I want to parse a timestamp from a log file that has been written via datetime.datetime.now().strftime('%Y%m%d%H%M%S') and then compute the number of seconds that have passed since this timestamp. I know I could do it with datetime.datetime.strptime to get back a datetime object and then compute a timedelta. Problem is, the strptime function has been introduced with Python 2.5 and I'm using Python2.4.4 (an upgrade is not possible in my context). Any easy way to do this?

  Read the article

• Dictionary/Hashmap......... what on earth is happening?

  - by Tom

  else if (!registryData.ContainsKey(kyInvolved)) { keyInvolved = new RegistryKy(kyInvolved); lock (registryDataLock) { registryData.Add(kyInvolved, keyInvolved); } processInvolved = new Proces(procInvolved); keyInvolved.addProcessToDict(processInvolved); } kyInvolved is a String which represents a registry key. keyInvolved is the actual registry key object. I'm being told that im adding a key which already exists, yet i have already checked to see whether it is in there or not???

  Read the article

• Show a form from another form

  - by M.H

  Hi,When I want to Display a from (C#) by clicking a button in another form I usually create an object form the form that I want to show and use the show method : Form2 f2 = new Form2(); f2.Show(); or I work with the "Owner" : Form2 tempForm = new Form2(); this.AddOwnedForm(tempForm); tempForm.Show(); the tow ways generate the same results but what is the best and what are the differences between them?

  Read the article

• I'd like to learn a new (non-OOP) language.

  - by Erklin

  For the past few years I've been dabbling in object-oriented languages like Python and Ruby, but the OOP concept never really meshed with me. Right now, I'm eager to learn something based on a different paradigm.

  Read the article

• Button redirect error

  - by Bader

  I am trying to a redirect the user when they click on a specific button protected void Button1_Click(object sender, EventArgs e) { Server.Transfer("ControlPanel/Default.aspx"); } The problem is when I click Button1 it redirects me to another page localhost:57988/WebSite5/Default.aspx and the weirdest thing is it open another page with this link above, not the default page I have, but another but with the default.aspx page url that you see! Any suggestions?

  Read the article

• How do I Unregister 'anonymous' event handler

  - by PK

  Say if I listen for an event: Subject.NewEvent += delegate(object sender, NewEventArgs e) { //some code }); Now how do I un-register this event? Or just allow the memory to leak?

  Read the article

• Detect if a method was overridden using Reflection (C#)

  - by Andrey

  Say I have a base class TestBase where I define a vistual method TestMe() class TestBase { public virtual bool TestMe() { } } Now I inherit this class: class Test1 : TestBase { public override bool TestMe() {} } Now, using Reflection, I need to find if the method TestMe has been overriden in child class - is it possible? What I need it for - I am writing a designer visualizer for type "object" to show the whole hierarchy of inheritance and also show which virtual methods were overridden at which level.

  Read the article

• Can I pass a pointer to a superclass, but create a copy of the child?

  - by Alex

  I have a function that takes a pointer to a superclass and performs operations on it. However, at some point, the function must make a deep copy of the inputted object. Is there any way I can perform such a copy? It occurred to me to make the function a template function and simply have the user pass the type, but I hold out hope that C++ offers a more elegant solution.

  Read the article

• Refactoring nested foreach statement

  - by dotnetdev

  Hi, I have a method with a nested foreach collection (iterate a set of objects and then look inside each object). I saw in a book a good pattern to make this much more elegant but cannot remember/find the code example. How else could I make this more tidy? The code is just a typical nested foreach statement so I have not provided a code sample. Thanks

  Read the article

• How to parse a "Mysql result JSON String" in Javascript?

  - by user330429

  Is there a way to convert it into object form? So that each field of the result can be accessed results[i].field where i is the number of records in the mysql result.. This is my JSON String http://pastebin.com/Cky1va3K

  Read the article

• Appropriate collection for variable-depth list?

  - by George R

  If I wanted to have a collection that described the (recursive) contents of a root directory, including directories and files, how would I store them? Or do I need to come up with an object that holds: -Current directory -Parent directory -Files in directory ..and slap them all in one big list and manually work out the relationship at runtime from each entries Parent directory.

  Read the article

• Locking individual elements in a static collection?

  - by user638474

  I have a static collection of objects that will be frequently updated from multiple threads. Is it possible to lock individual objects in a collection instead of locking the entire collection so that only threads trying to access the same object in the collection would get blocked instead of every thread? If there is a better way to update objects in a collection from multiple threads, I'm all ears.

  Read the article

• The Relationship Between Activities and View Objects - Android

  - by Greenhouse Gases

  I am attempting to learn how to develop on the Android platform but do not quite understand the relationship between Activities and Views, because according to the documentation an Activity is link to a UI object that the user can interact with, but if this is the case where does the whole idea of Views come in? There is probably a very basic explanation but I would appreciate a few pointers all the same. Thanks

  Read the article

• Calling private event handler from outside class

  - by Azodious

  i've two classes. One class (say A) takes a textbox in c'tor. and registers TextChanged event with private event-handler method. 2nd class (say B) creates the object of class A by providing a textbox. how to invoke the private event handler of class A from class B? it also registers the MouseClick event. is there any way to invoke private eventhandlers?

  Read the article

• 1-which is the parameter that is added to every non-static member function when it is called?

  - by user308387

  1-which is the parameter that is added to every non-static member function when it is called? 2-what is an adaptor class or wrapper class? 3-what is a non object when can you tell that a memory leak will occur? 4-what is a parameterized type?

  Read the article

• Delay in the implementation of text change in Statusbar control

  - by ehsan zeynali

  I have a function a time consuming operation that is done I want to start and end operations appear to be user (By statusbar control) But when performed function, both text executed at the end of function. (user can not sees "Start Operation ...") What solution do you recommend to me? private void btnUpdateDataBase_Click(object sender, RoutedEventArgs e) { TextBlockStatus.Text = "Start Operation ..."; //Time consuming operation TextBlockStatus.Text = "End Operation ..."; }

  Read the article

• Rvalues in C++03

  - by DeadMG

  How can you tell whether or not a given parameter is an rvalue in C++03? I'm writing some very generic code and am in need of taking a reference if possible, or constructing a new object otherwise. Can I overload to take by-value as well as by-reference and have the rvalue returns call the by-value function? Or do I have a very sickening feeling that this is why rvalue references are in C++0x?

  Read the article

• Enumerating Environment keys with VBScript?

  - by Stabledog

  I need to enumerate the keys in the WScript.Shell.Environment object. It's clear that if you already know the name of the key, you're home free with: Set oShell = WScript.CreateObject("WScript.Shell") Debug.WriteLine "PATH=" & oShell.Environment("PATH") ...but if you want to list the keys, it looks like you're out of luck! Is there a secret passageway somewhere?

  Read the article

• How to get the day component out of an NSDate?

  - by mystify

  I have an NSDate object and need an integer of the day. i.e. if we have 25th May 2010, the int should be 25. Is there a simple way to do it?

  Read the article

< Previous Page | 797 798 799 800 801 802 803 804 805 806 807 808  | Next Page >