Search Results

Search found 29423 results on 1177 pages for 'object'.

Page 817/1177 | < Previous Page | 813 814 815 816 817 818 819 820 821 822 823 824  | Next Page >

• Manipulating pixels using only toDataURL

  - by Chris

  The problem I have is this: I need to be able to dynamically tint an image using Javascript, but I cannot access pixel data via the canvas. I can, however, store the dataURL (or any other text-based data format) and include that with the code, manipulate that data, and then create an image object using that dataURL. My question is, how can I access the RGBA value of each pixel, given only the dataURL. I assume I need to decode the base64 url, but into what format in order to manipulate on the pixel level? And then would be it be as trivial as re-encoding it as base64, slapping it in a url, and the passing to an image? Thanks.

  Read the article

• What are the essential COM components required for burning DVD in Windows XP using .NET?

  - by shruti

  I'm trying to burn DVD/CD through frontend C# code... i have used IMAPI2 for buring CD/DVD in windows XP..but it is giving me unhandled exception... as:- System.InvalidCastException: Unable to cast COM object of type 'IMAPI2.Interop.MsftFileSystemImageClass' to interface type 'IMAPI2.Interop.MsftFileSystemImage'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{7CFF842C-7E97-4807-8304-910DD8F7C051}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)) can anyone please help me out to solve this problem. I'm not able to solve this error. this project is working fine in Windows7 but unable to work with XP.

  Read the article

• stopping android handler loop

  - by venka reddy

  Hi, i am using a class which extends Handler class to update my activity UI. The code is as follows in side main activity, /////////////////////////////// public class RefreshHandler extends Handler { public void handleMessage(Message msg) { Homeform.this.updateUI(); } public void sleep(long delayMillis) { this.removeMessages(0); sendMessageDelayed(obtainMessage(0), delayMillis); } }; private void updateUI(){ Log.v("","== I am inside Update UUI====================="); refresh(); mRedrawHandler.sleep(5000); } /////////////////////////// And i had call this method handleMessage() on the object of RefreshHandler as follows /////////////////////////////////////////// mRedrawHandler = new RefreshHandler(); mRedrawHandler.handleMessage(new Message()); //////////////////////////////////////////////// But here i am facing one problem that is it is running after closing my application also . please solve my problem to stop this handler when close this application. ThanQ.....

  Read the article

• return new string vs .ToString()

  - by Leroy Jenkins

  Take the following code: public static string ReverseIt(string myString) { char[] foo = myString.ToCharArray(); Array.Reverse(foo); return new string(foo); } I understand that strings are immutable, but what I dont understand is why a new string needs to be called return new string(foo); instead of return foo.ToString(); I have to assume it has something to do with reassembling the CharArray (but thats just a guess). Whats the difference between the two and how do you know when to return a new string as opposed to returning a System.String that represents the current object?

  Read the article

• How can I check if a particular jQuery UI function is available and use a different function if it i

  - by Mark B

  I'm writing a jQuery plugin and I would like my code to take advantage of the jQuery UI show(effect, [options], [speed], [callback]) and hide(effect, [options], [speed], [callback]) functions, which allow you to show and hide elements with a nice animation. However, I'd also like my plugin to degrade gracefully if jQuery UI isn't available, switching back to use the basic, non-animating show() and hide() functions present in the standard jQuery API. I'll need to test for the show and hide functions specifically, as even if jQuery UI is available it could potentially be a custom version, without the Effects components included. At first I thought that I might be able to do something like: if(typeof myelement.show('blind', 'slow') == 'undefined') { myelement.show('blind', 'slow'); } else { myelement.show(); } But of course this doesn't work, as even if UI isn't present, show() is still a function, it just has a different signature—so typeof returns object in either case. So, what's the best way for me to check if jQuery UI is available to my plugin? Any help is much appreciated!

  Read the article

• How to get the last key pressed on Mac ?

  - by Dheeraj

  Hi All, I'm writing a plugin for an application. I cannot derive from NSApplication as it is a third party application. I can get the callback in my plugin when any key is pressed. But I will not know what key is pressed. So is there any call in Cocoa to find the last key pressed when I get the callback? I only have NSView object. Any ideas will help me a lot. Thanks, Dheeraj.

  Read the article

• How to do client callback for each item in a foreach statement using c#?

  - by Mike108

  I want to show each item Id that is doing now dynamically in a foreach statement. How to do some kind of client callback to show the item Id in a foreach statement? <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label> <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" /> . protected void Button1_Click(object sender, EventArgs e) { List<int> list = new List<int>() { 1,2,3,4,5 }; foreach (var item in list) { Label1.Text = string.Format("I'm doing item {0} now.", item.ToString()); Page.RegisterStartupScript("", string.Format("<script>alert('doing item {0} now')</script>", item.ToString())); Thread.Sleep(1 * 1000); } }

  Read the article

• Calling UIGetScreenImage() on manually-spawned thread prints "_NSAutoreleaseNoPool():" message to lo

  - by jtrim

  This is the body of the selector that is specified in NSThread +detachNewThreadSelector:(SEL)aSelector toTarget:(id)aTarget withObject:(id)anArgument NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; while (doIt) { if (doItForSure) { NSLog(@"checking"); doItForSure = NO; (void)gettimeofday(&start, NULL); /* do some stuff */ // the next line prints "_NSAutoreleaseNoPool():" message to the log CGImageRef screenImage = UIGetScreenImage(); /* do some other stuff */ (void)gettimeofday(&end, NULL); elapsed = ((double)(end.tv_sec) + (double)(end.tv_usec) / 1000000) - ((double)(start.tv_sec) + (double)(start.tv_usec) / 1000000); NSLog(@"Time elapsed: %e", elapsed); [pool drain]; } } [pool release]; Even with the autorelease pool present, I get this printed to the log when I call UIGetScreenImage(): 2010-05-03 11:39:04.588 ProjectName[763:5903] *** _NSAutoreleaseNoPool(): Object 0x15a2e0 of class NSCFNumber autoreleased with no pool in place - just leaking Has anyone else seen this with UIGetScreenImage() on a separate thread?

  Read the article

• Binding the property to a control defined inside a listboxitem template

  - by Malcolm

  I have a class called ledgerObject : public class LedgerObject { public ChargeLine ChargeLine{ get; set; } public DelegateCommand Click_hyperbnCommand{ get; private set; } public LedgerObject() { this.Click_hyperbnCommand = new DelegateCommand(click_btn); } private void click_btn(object args) { } } The chargeLine which is the property of this class is itself a class and has some properties in it. So I am binding the datacontext of a listbox to an array of LedgerObject, and I want to bind the textblock control defined inside a listboxitem template to the property of a ChargeLine. Any idea or suggestion will help. I have tried this but not working: <TextBlock Margin="4 0 4 0" Grid.Column="3" Text="{Binding Path=ChargeLine.SimCode}" TextDecorations="Underline" Foreground="Red" />

  Read the article

• Catch all exceptions in Scala 2.8 RC1

  - by Michel Krämer

  I have the following dummy Scala code in the file test.scala: class Transaction { def begin() {} def commit() {} def rollback() {} } object Test extends Application { def doSomething() {} val t = new Transaction() t.begin() try { doSomething() t.commit() } catch { case _ => t.rollback() } } If I compile this on Scala 2.8 RC1 with scalac -Xstrict-warnings test.scala I'll get the following warning: test.scala:16: warning: catch clause swallows everything: not advised. case _ => t.rollback() ^ one warning found So, if catch-all expressions are not advised, how am I supposed to implement such a pattern instead? And apart from that why are such expressions not advised anyhow?

  Read the article

• How to call an ASP.NET WebMethod using PowerShell?

  - by Domenic

  It seems like ASP.NET WebMethods are not "web servicey" enough to work with New-WebServiceProxy. Or maybe it is, and I haven't figured out how to initialize it? So instead, I tried doing it manually, like so: $wc = new-object System.Net.WebClient $wc.Credentials = [System.Net.CredentialCache]::DefaultCredentials $url = "http://www.domenicdenicola.com/AboutMe/SleepLog/default.aspx/GetSpans" $postData = "{`"starting`":`"\/Date(1254121200000)\/`",`"ending`":`"\/Date(1270018800000)\/`"}" $result = $wc.UploadString($url, $postData) But this gives me "The remote server returned an error: (500) Internal Server Error." So I must be doing something slightly wrong. Any ideas on how to call my PageMethod from PowerShell, and not get an error?

  Read the article

• JPA, scope, and autosave?

  - by arinte

  I am using JPA and lets say I do something like this public class MoRun extends Thread {... public void run() { final EntityManagerFactory emFactory = Persistence.createEntityManagerFactory("pu"); EntityManager manager = emFactory.createEntityManager(); manager.setFlushMode(FlushModeType.COMMIT); someMethod(manager); ... } public void someMethod(EntityManager manager){ Query query = manager.createNamedQuery("byStates"); List<State> list = query.getResultList(); for (State state : list) { if(someTest) state.setValue(...) } ... } So for those objects that pass "someTest" and values are updated are those changes automatically persisted to the db even though there is no transaction and I don't explicitly "manager.save(state)" the object? I ask because it seems like it is and I was wondering if the flush is doing it?

  Read the article

• .attr("disabled", "disabled") problem

  - by meo

  i have this function where basically add and remove the disabled attribute form a input field: $(bla).click(function(){ if (something) { console.log($target.prev("input")) // gives out the right object $target.toggleClass("open").prev("input").attr("disabled", "disabled"); }else{ $target.toggleClass("open").prev("input").removeAttr("disabled"); //this works } }) the removeAttr works fine but when i need to add the disabled again it does just nothing. My console.log is triggering (and giving me back the right input field) so I'm sure my that my if statement works. But if i inspect the DOM with firebug the disabled attribute does not appear. can someone help me? PS: please don't focus on the function or the if statement itself, works fine its just that attr that dies not work for disabled...

  Read the article

• Update gridview from code behind in asp.net

  - by Zerotoinfinite

  Hi Experts, I have gridview in my asp.net 3.5 application [C#]. Which looks like this: AutoGenerateDeleteButton="true" DataKeyNames="studentId" runat="server" OnRowEditing="GridView1_RowEditing" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowDeleting="GridView1_RowDeleting" OnRowUpdating="GridView1_RowUpdating" onpageindexchanging="GridView1_PageIndexChanging" onrowupdated="GridView1_RowUpdated" <EmptyDataTemplate> <asp:Label ID="lblNoRecord" runat="server" Text="No Record Found" ForeColor="Red"></asp:Label> </EmptyDataTemplate> </asp:GridView> Now, In rowUpdating event, I am writing the below code: protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { int mytext = Convert.ToInt16(GridView1.Rows[e.RowIndex].Cells[1].Text); string cConatiner = GridView1.Rows[e.RowIndex].Cells[4].Text; } In this, myText is giving me the correct value, i.e. of the 1st column but when I am changing the cell value to 1,2,3,4,5,6 I am getting empty. Am I doing it incorrectly ? Please help me. Thanks in advance.

  Read the article

• Why is this the output of this python program?

  - by Andrew Moffat

  Someone from #python suggested that it's searching for module "herpaderp" and finding all the ones listed as its searching. If this is the case, why doesn't it list every module on my system before raising ImportError? Can someone shed some light on what's happening here? import sys class TempLoader(object): def __init__(self, path_entry): if path_entry == 'test': return raise ImportError def find_module(self, fullname, path=None): print fullname, path return None sys.path.insert(0, 'test') sys.path_hooks.append(TempLoader) import herpaderp output: 16:00:55 $> python wtf.py herpaderp None apport None subprocess None traceback None pickle None struct None re None sre_compile None sre_parse None sre_constants None org None tempfile None random None __future__ None urllib None string None socket None _ssl None urlparse None collections None keyword None ssl None textwrap None base64 None fnmatch None glob None atexit None xml None _xmlplus None copy None org None pyexpat None problem_report None gzip None email None quopri None uu None unittest None ConfigParser None shutil None apt None apt_pkg None gettext None locale None functools None httplib None mimetools None rfc822 None urllib2 None hashlib None _hashlib None bisect None Traceback (most recent call last): File "wtf.py", line 14, in <module> import herpaderp ImportError: No module named herpaderp

  Read the article

• How to combine elements of a list

  - by Addie

  I'm working in c#. I have a sorted List of structures. The structure has a DateTime object which stores month and year and an integer which stores a value. The list is sorted by date. I need to traverse the list and combine it so that I only have one instance of the structure per date. For example: My initial list would look like this: { (Apr10, 3), (Apr10, 2), (Apr10, -3), (May10, 1), (May10, 1), (May10, -3), (Jun10, 3) } The resulting list should look like this: { (Apr10, 2), (May10, -1), (Jun10, 3) } I'm looking for a simple / efficient solution. The struct is: class CurrentTrade { public DateTime date; public int dwBuy; } The list is: private List<CurrentTrade> FillList

  Read the article

• asp:menu in safari and chrome

  - by Patto

  I have seen some posts of the asp:menu and the browsers Chrome and Safari here, but nevertheless, I think the problem that I have is different than other problems. I am using the following code in order to display the menu: protected void Page_Load(object sender, EventArgs e) { if (Request.UserAgent.IndexOf("AppleWebKit") > 0) { Request.Browser.Adapters.Clear(); } ... } However, the problem is still there if I start the browsers for the very first time, the menu is displayed vertically instead of horizontally. After a page refresh, the menu works fine... How is that possible? Or is the problem that simple,and I need to place the code in somewhere earlier (eg Page_PreInt). Thanks in advance, Patto

  Read the article

• Highlighting in Solr 1.4 - requireFieldMatch

  - by Mark Redding

  I have an object Title : foo Summary : foo bar Body : this is a published story about a foo and a bar All three are set up as fields with stored=true. The user searches across my system for the word "foo" I would like to highlight foo in all three places. The user searches for the word foo in the title "title:foo" I only want to highlight foo within the title. When I added hl.requireFieldMatch=true and hl.usePhraseHighlighter=true as part of my query over to SOLR I am unable to get the highlighting in all three places when doing a generic non fielded search. Is there a way to get both scenarios to work? I had these two items turned off, but I am adding in some fielded portions of the query that the user does not see which only display Published items for instance. the problem is (foo AND status:published) is causing the word published in the body to highlight when the user only searched for the word "foo".

  Read the article

• Error loading Variables stage.loaderInfo - AS3

  - by Dimitree

  I have a Document class that loads variables from Facebook with the use of stage.loaderInfo var connect:FacebookConnectObject = new FacebookConnectObject( facebook, API_KEY, this.stage.loaderInfo ); But when I change the Document class (with another one responsible for the layout of my app), and try call the above from a movieclip that exists in my application with the use: var facebook_class:FacebookAp = new FaceBppkApp addChild(facebook_class) I get error TypeError: Error #1009: Cannot access a property or method of a null object reference. I believe the error comes fro this line this.stage.loaderInfo since I changed the scope... How I am supposed to fix that?

  Read the article

• Microsoft Mdac with SQL Server issue

  - by George2

  Hello everyone, I am new to Microsoft Mdac = http://connect.microsoft.com/VisualStudio/feedback/details/91083/mdac-2-8-for-windows-x64, and I want to use this technology to export data from a SQL Server table (or ADO.Net DataTable object instance) to an Excel file. I am using VSTS 2008 + .Net 2.0 + C# + Windows Server 2008 x64 + SQL Server 2008 Enterprise 64-bit + ADO.Net + ASP.Net + IIS 7.0. My questions, whether Mdac technology could achieve my goal? any tutorial about this area (export from SQL Server to excel using Mdac) for a newbie with samples? thanks in advance, George

  Read the article

• How to properly use CoreData validation & error framework ?

  - by Xav

  I've created a model in Xcode, and for various attributes I have minimum & maximum values defined and that are enforced by coreData at runtime. I'm using NSManagedObject validateValue:forKey:error to check for user input values. I was a bit disappointed to see that the localized error message is not specific, and I get a "The operation couldn't be completed. (Cocoa error 1620)" for too small values and a "The operation couldn't be completed. (Cocoa error 1610)" for too large values. It's written in the coreData documentation that "you can localize most aspects of a managed object model, including entity and property names and error messages". Unfortunately it's not very detailed on how you implement it for error messages. So How do you customize error message ? How do you localize them ? Is it possible to customize it in a way where it will mentioned the reference value ex: "Value should be lower than %@" or "Value should be higher than %@" ?

  Read the article

• jQuery to get the text attribute of a checkbox

  - by Andriyev

  Hi I'm adding a check box to a page using the following statement; <script language="C#" runat="server"> protected void Page_Load ( object src, EventArgs e ) { if (!IsPostBack) { CheckBox XChkBox = new CheckBox(); //instance of System.Web.UI.WebControls.CheckBox XChkBox.ID = "someId" XChkBox.Text = "someText" somePlaceHolder.Controls.Add(XChkBox); } } </script> I need to get the Text attribute of that check box on click. I tried $(this).attr('Text'); inside $('input[type=checkbox]').click(function(){}); but it returns undefined. Where am I going wrong? Please suggest. cheers

  Read the article

• Change element class without using css animation

  - by Akshat

  I have a class with the following type of css animaton .cssanimation { -webkit-transition: 0.2s all ease-in-out -o-transition: 0.2s all ease-in-out -moz-transition: 0.2s all ease-in-out transition: 0.2s all ease-in-out .. some other changes in position } I have the div <div id="thediv"> ... </div> $('#thediv').addClass('cssanimation') //animates the object I do use this animation at some point but sometimes I'd like to add it without invoking the animation Does Jquery have a way in which I can add classes without invoking their css animations?

  Read the article

• Check if hydrated doctrine result is NULL

  - by iggnition

  Hi, I'm trying to check if a result in my DQL is NULL. I got the following DQL query: $q = self::createQuery("l") ->select('i.*, s.aantal, m.naam, c.cat_naam, a.app_id') ->from('InstalledBase i, i.Spare s, i.Apparaat a, a.Categorie c, a.Merk m') ->execute(); return $q; Now i want to check if the s.aantal is NULL so i do: if(is_null($installedbase->Spare->spare_id)) when the variable is NOT null everything works, but when it is actually NULL i get a E notice message: Notice: Trying to get property of non-object in \installedbase\templates\_index.php on line 29 It does see that it is null though because the if condition is executed. Weird thing is i'm doing the exact same thing on another page where it works no problem. But i must be doing something wrong or stupid since those messages generally don't show for nothing. So can anybody explain this to me? :)

  Read the article

• Making large toolbars like the iPod app

  - by andybee

  I am trying to create a toolbar programatically (rather than via IB) very similar to the toolbar featured in the iPhone app. Currently I've been experimenting with the UIToolbar class, but I'm not sure how (and if?) you can make the toolbar buttons centrally aligned and large like that in the iPod app. Additionally, regardless of size, the gradient/reflection artwork never correctly respects the size and is stuck as if the object is the default smaller size. If this cannot be done with a standard UIToolbar, I guess I need to create my own view. In this case, can the reflection/gradient be created programmatically or will it require some clever alpha tranparency Photoshopped artwork?

  Read the article

< Previous Page | 813 814 815 816 817 818 819 820 821 822 823 824  | Next Page >