Search Results

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

Page 1021/1279 | < Previous Page | 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028  | Next Page >

• Get selected items from explorer using C# .NET 3.5

  - by ghawkes

  I am writing a .NET 3.5 WPF application in C#. This application needs to be able to get the selected items out of Windows explorer when it is in the foreground. I already have the code working that handles a global Windows hotkey and then checks to see if the foreground IntPtr is from explorer. If so, I am able to obtain the System.Diagnostics.Process object that maps to explorer. At this point, I would like to obtain the list of selected items from explorer. Perhaps there is a Windows API function that I could pinvoke to do this? Thank you, G

  Read the article

• What is the difference between these two ways of creating NSStrings?

  - by adame

  NSString *myString = @"Hello"; NSString *myString = [NSString stringWithString:@"Hello"]; I understand that using method (1) creates a pointer to a string literal that is defined as static memory (and cannot be deallocated) and that using (2) creates an NSString object that will be autoreleased. Is using method (1) bad? What are the major differences? Is there any instances where you would want to use (1)? Is there a performance difference? P.S. I have searched extensively on Stack Overflow and while there are questions on the same topic, none of them have answers to the questions I have posted above.

  Read the article

• Why doesn't the C++ default destructor destroy my objects?

  - by Oszkar

  The C++ specification says the default destructor deletes all non-static members. Nevertheless, I can't manage to achieve that. I have this: class N { public: ~N() { std::cout << "Destroying object of type N"; } }; class M { public: M() { n = new N; } // ~M() { //this should happen by default // delete n; // } private: N* n; }; Then this should print the given message, but it doesn't: M* m = new M(); delete m; //this should invoke the default destructor

  Read the article

• Easy Threading in WPF

  - by Sandeep Bansal

  Hi everyone, I've been reading a lot about threading in C#, WPF and Silverlight but can't get it to work. My main problem is I have the _load (_Initialized) action and it has a lot of object creation and along with that I have timers working doing different things, this causes the startup time of the program to be very slow and obviously causes the UI to hang and it isn't a good thing for deploying to a lot of users. My timers change values of labels and textfields but having them do that on another thread is an obvious no go. So can someone give me some examples on how to achieve what I need to do? Thanks

  Read the article

• Is there any way to use imagegrabwindow() with Firefox or Chrome?

  - by patternsofchaos

  I'm trying to generate website thumbnails programatically in PHP. To do this, I'm using imagegrabwindow() with a COM object: $browser = new COM("InternetExplorer.Application"); $handle = $browser->HWND; $browser->Visible = true; $browser->Navigate($pre.$URL); while ($browser->Busy) { com_message_pump(4000); } $img = imagegrabwindow($handle); What I'm wondering is if there is any way to do the same thing with Firefox or Chrome? Can I invoke either of them with PHP COM?

  Read the article

• Resolve property at runtime. C#

  - by user1031381

  I have some class which have some code public IEnumerable<TypeOne> TypeOne { get { if (db != null) { var col = db.Select<TypeOne>(); if (col.Count > 0) return col; } return db2.TypeOne; } } public IEnumerable<TypeTwo> TypeTwo { get { if (db != null) { var col = db.Select<TypeTwo>(); if (col.Count > 0) return col; } return db2.TypeTwo; } } So as You can see there is a lot of duplicated Code and there are same property name and item type of enumerable. I want to call some property of object like "obj.MyProp". And MyProp must be resolved at runtime with some generic or non-generic method. Is it possible?

  Read the article

• How do I stop and empty tag in XML serializer?

  - by John

  I have an object like this, public class UserObj { public string First {get; set;} public string Last {get; set;} public addr Address {get; set;} } public class addr { public street {get; set;} public town {get; set;} } Now when I use XmlSerializer on it and street and town are empty I get this in the XML output, <Address /> Is there a way not to output this empty tag? Thanks

  Read the article

• Need to ignore property in XmlSerialization because of circular reference

  - by NestorArturo

  Have an object with a property I don't need to serialize. The type of this property generates a circular reference which I expected, so I decorated this property with everything comes to my mind: private clsDeclaracion _Declaracion; [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] [System.Xml.Serialization.XmlIgnore] public clsDeclaracion Declaracion { get { return _Declaracion; } set { _Declaracion = value; } } However, the circular reference keeps firing. Tried using a public field with no luck. This is my serialization code: System.Xml.Serialization.XmlSerializer Serializador = new System.Xml.Serialization.XmlSerializer(objeto.GetType()); using (StreamWriter SW = System.IO.File.CreateText(ArchivoTemp)) { Serializador.Serialize(SW, objeto); }

  Read the article

• JPA Native Query (SQL View)

  - by Uchenna

  I have two Entities Customer and Account. @Entity @Table(name="customer") public class Customer { private Long id; private String name; private String accountType; private String accountName; ... } @Entity @Table(name="account") public class Account { private Long id; private String accountName; private String accountType; ... } i have a an sql query select a.id as account_id, a.account_name, a.account_type, d.id, d.name from account a, customer d Assumption account and customer tables are created during application startup. accountType and accountName fields of Customer entity should not be created. That is, only id and name columns will be created. Question How do i run the above sql query and return a Customer Entity Object with the accountType and accountName properties populated with sql query's account_name and account_type values. Thanks

  Read the article

• Best way to make an attribute always an array?

  - by Shadowfirebird

  I'm using my MOO project to teach myself Test Driven Design, and it's taking me interesting places. For example, I wrote a test that said an attribute on a particular object should always return an array, so -- t = Thing.new("test") p t.names #-> ["test"] t.names = nil p t.names #-> [] The code I have for this is okay, but it doesn't seem terribly ruby to me: class Thing def initialize(names) self.names = names end def names=(n) n = [] if n.nil? n = [n] unless n.instance_of?(Array) @names = n end attr_reader :names end Is there a more elegant, Ruby-ish way of doing this? (NB: if anyone wants to tell me why this is a dumb test to write, that would be interesting too...)

  Read the article

• NullPointerException when accessing image files in a .jar file

  - by user548240

  Hi, I have pretty much tried everything but still have this same problem. I have the following setup: I have a images.jar containing a folder called 'images' in which there are multiple image files. I add images.jar to the java build path of the project in eclipse, and i've been trying to use the following code to access the individual images in the jar: URL url = this.getClass().getResource("images/a.png"); ImageIcon icon = new ImageIcon (url); Unfortunately, the URL object is always NULL. I don't think this has anything to do with where I put images.jar file as it is added to the classpath in eclipse. I have also tried using the path '/images/a.png', but still the same problem. Any suggestion would be extremely welcome! Thanks.

  Read the article

• Passing parameters among views in a navigation frame INSIDE a custom control

  - by NetWriter

  I created a silverlight 3 application with a navigation frame and 3 views: search, add and edit. I used the app file to pass parameters among the 3 pages, eg: ((App)Application.Current).SNIPSELECTED = currentSnip; Then in the receiving page: currentSnip = ((App)Application.Current).SNIPSELECTED; currentSnip is a SnipItem object: public class SnipItem { public string itemID {get;set;} public string category {get;set;} public string itemDescription {get;set;} public string codeSnip {get;set;} } This worked fine until I decided to make this entire application into a user control and put that inside a second silverlight application with its own navigation frame and app file. The app files are getting confused. The first app file with all my parameter passing is not being read. I know how to pass a simple parameter between views in the first application without the app file (in a query string), but how about these custom types like my currentSnip above?

  Read the article

• Deserialize Xml with empty elements in C#

  - by user204086

  Trying to deserialize some xml snippits into objects. The problem is that I'm getting an invalid format on every empy element tag. I can deserialize the object no problem when all of the elements have values. Or the empty elements are ommitted. Xml Snippit: <foo><propOne>1</propOne><propTwo /></foo> C# Class: [Serialilbe()] public class foo { public foo(){} [XmlElementAttribute(IsNullable = true)] public int? propOne {get;set;} [XmlElementAttribute(IsNullable = true)] public int? propTwo {get;set;} } Is there a setting on the class I can make to adjust the parsing? or Is there an easy way I can apply xsl to remove these elements? or Should I use regEx to remove the empty elements be fore desrializing? or an even better way?

  Read the article

• Why can't I register a custom model binder for a List<int>?

  - by quarksoup

  I have an action that looks like public ActionResult GetUsers(List<int> userIds) {//do stuff} The list of userIds can become quite long, so I want to use Json.Net to deserialize it. To do so I created an IModelBinder implementation, which works fine for other objects, but never gets called for a List. The IModelBind looks like this public class JsonBinder : System.Web.Mvc.IModelBinder { public object BindModel(System.Web.Mvc.ControllerContext controllerContext, System.Web.Mvc.ModelBindingContext bindingContext) { //Do model binding stuff using Json.Net } } And I register this model binder with this line ModelBinders.Binders.Add(typeof(List<int>), new JsonBinder()); However the JsonBinder is never called. Why is this? Should I be using a ValueProvider?

  Read the article

• PHP OOP problem

  - by Isis

  Hello <?php class Templater { var $params = array(); public static function assign($name, $value) { $this->params[] = array($name => $value); } public static dunction draw() { return $this->params; } } <?php $test = Templater::assign('key', 'value')->draw(); print_r($test); I need to function "assign" was static, but $params was common for the whole class.. BUt this code is not working(( Fatal error: Using $this when not in object context Any ideas?

  Read the article

• Singly-Linked Lists insert_back and isIncreasing

  - by rezivor

  I just finished writing a program that I can add, remove or print objects to a list, but I am having difficulty implementing two more functions that is insert_back, which inserts a value to the end of a list. Also,I have to modify the representation of a List and alter whatever methods are necessary to make insert_back run in constant time: O(1). This new operation should have the signature: void List::insert_back( const Object& data ); Also, isIncreasing, For example, for a list containing head-() (11) (8) (15) (3), isIncreasing() should return false. However, it would return true when working on a list containing head- () (7) (9) (15). This new operation should have the signature: bool List::isIncreasing() const; Thank you

  Read the article

• Imbedded wpf textbox does not accept input

  - by pro3carp3

  I put a wpf textbox inside a combobox to allow the user to enter a custom setting. I can read the keypress in the keydown event, but the text in the textbox does not change. What am I missing? <ComboBoxItem Name="GridSizeCustom"> <StackPanel Height="30" Orientation="Horizontal"> <TextBlock Text="Grid Size (8 - 200)" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="0" /> <TextBox Name="GridSizeBox" KeyDown="test" Width="50" /> </StackPanel> </ComboBoxItem> I step through this event handler when I press a key, but no change to the textbox text: public void test(Object sender, KeyboardEventArgs e) { int x = 0; } Any help is appreciated. Thanks.

  Read the article

• C#: Select row from DataGridView

  - by Bi

  Hi I have a form with a DataGridView (of 3 columns) and a Button. Every time the user clicks on a button, I want the get the values stored in the 1st column of that row. Here is the code I have: private void myButton_Click(object sender, EventArgs e) { foreach (DataGridViewRow row in ProductsGrid.Rows) { if (this.ProductsGrid.SelectedRows.Count == 1) { // get information of 1st column from the row string value = this.ProductsGrid.SelectedRows[0].Cells[0].ToString(); } } } However when I click on myButton, the this.ProductsGrid.SelectedRows.Count is 0. Also, how do I ensure that the user selects only one row and not multiple rows? Does this code look right?

  Read the article

• MS Access Crashed an now all Form objects and code modules are missing

  - by owlie

  I was adding a form to our Access 07 db. I copied an existing form to use as a template, renamed it, and saved it. I opened a different form to check something and Access crashed. When I reopened the database it says: "Access has detected that this database is in an inconsistent state, and will attempt to recover the database." etc. When it reopened - all forms and reports were missing. Saved queries remain. The error message states that object recovery failures will be noted in a Recovery Errors table - but this table wasn't created. The links to the be database remained intact. The database is split - I was experimenting with a form on a front-end copy which might have something to do with it. Any ideas what would cause this (I can see loosing recent work - but nixing all form objects?!) And is there any chance of recovery?

  Read the article

• how to add multiple markers to mapview in android?

  - by Vishakha Kinjawadekar

  I am working on android geolocation application in that I have added marker for current location and want to add markers for other geopoints also. I have created objects of OverlayItem for other points and adding it to ItemizedOverlay like itemizedOverlay.addOverlay(overlayItem) and then adding it to mapOverlay.add(itemizedOverlay). For the current location geopoints getting from "Location" object and other points are hard-coded values. After executing it only current location marker is displayed not the other hardcoded points.How can I add marker for these geopoints and where? Thanks , Vishakha.

  Read the article

• [C++] Needed: A simple C++ container (stack, linked list) that is thread-safe for writing

  - by conradlee

  I am writing a multi-threaded program using OpenMP in C++. At one point my program forks into many threads, each of which need to add "jobs" to some container that keeps track of all added jobs. Each job can just be a pointer to some object. Basically, I just need the add pointers to some container from several threads at the same time. Is there a simple solution that performs well? After some googling, I found that STL containers are not thread-safe. Some stackoverflow threads address this question, but none form a consensus on a simple solution.

  Read the article

• How to structure a bigger/complicated project?

  - by Per

  Hello, I'm creating this (big?) project in high school where I'm programming the game Shithead (card game) (so that two people can play against eachother). I'll use mostly PHP, MySQL, JavaScript and Ajax. But I have never made a project like this before. I have only made like CMS-systems and so on. Do you guys have any tips on how I should structure this project? I'm also not so used to Object-oriented programming, but I guess I should consider this. Should I, for example, make a class for the cards? I'm very thankful for any tips or good links!

  Read the article

• Does this interface already exist in the standard .NET libraries?

  - by VoidStar

  I found myself needing a simple generic interface, and I wrote it, but it turned out to be pretty much the world's simplest interface. I was wondering if it already exists by some other name. I just want to make sure I'm not reinventing something that is already included with the .NET framework. interface IReceiver<T> { void Receive(T obj); } I can't really find a good list of "standard" interfaces that came with .NET. Does the structure of this interface look familiar to anyone? Have I reinvented something that is already standard? EDIT: I have a data object and a number of objects interested in receiving the data. Objects interested in receiving the data implement the interface, so that 'routing' lists and maps can send the data to them. The idea is full generalization in the routing, the routing will be data-driven.

  Read the article

• Dictionary as parameter, where the Value-Type is irrelevant

  - by aaginor

  Hi folks, I have a function, that returns the next higher value of a Dictionary-Keys-List compared to a given value. If we have a Key-List of {1, 4, 10, 24} and a given value of 8, the function would return 10. Obviously the type of the Value-Part of the Dictionary doesn't matter for the function, the function-code for a Dictionary<int, int> and Dictionary<int, myClass> would be the same. How has the method-head have to look like, when I want to call the function with any Dictionary, that has int as key-Type and the value-Type is irrelevant? I tried: private int GetClosedKey(Dictionary<int, object> list, int theValue); but it says that there are illegal arguments, when I call it with a Dictionary. I don't want to copy'n'paste the function for each different value-type that my function may be called. Any idea, how to accomplish that? Thanks in advance, Frank

  Read the article

• before_save not working with Rails 3

  - by Mich Dart

  I have this Project model: class Project < ActiveRecord::Base validates :status, :inclusion => { :in => ['active', 'closed'] } validates :title, :presence => true, :length => { :in => 4..30 } before_save :set_default_status_if_not_specified private def set_default_status_if_not_specified self.status = 'active' if self.status.blank? end end If I create a new object like this: Project.create!(:title => 'Test 2', :pm_id => 1) I get these errors: Validation failed: Status is not included in the list But status field should get filled in before save.

  Read the article

< Previous Page | 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028  | Next Page >