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• Dynamically generated controls issue.

  - by Thomas

  I have a form with a panel docked in it. I then dynamically create 15 panels (named: panel_n) and 15 pictureboxes (named: picturebox_n) on the primary panel (named ContainerPanel). When dragging the any picturebox over a panel (panel_n) created using the relevant mouse events. I would like to get the panel's name that the picture box was dragged over. The mouse cursor seems to be captured. I have tried creating a IMessageFilter interface, but there are still no events that trigger when dragging one of the pictureboxes over any one of the panels. The ClientRectangle.IntersectsWith function also does not work as the co-ords are always 0,0. All I need is the panel name where the picturebox was dragged over (preferably on the mouseup event)

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• Transparent textbox when textbox GotFocussed Windows Phone 8.1?

  - by user3701923

  I need to have transparent textbox, in my WindowsPhone 8.1 Runtime application. I made Background="Transparent" to the textbox, so it is transparent when it is loaded. But on focus, background color changed to white. I write the following code, to make it transparent. But it doesn't run.! <TextBox Background="Transparent" GotFocus="titleBox_GotFocus" /> C# private void titleBox_GotFocus(object sender, RoutedEventArgs e) { titleBox.Background = new SolidColorBrush(Colors.Transparent); }

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• Delphi: How to assign dynamically an event handler without overwriting the existing event handler?

  - by user193655

  I need to loop through Components and assign an event handler (for example Dynamically assigning OnClick event for all TButton to ShowMessage('You clicked on ' + (Sender as TButton).Name); The problem is that in some cases I alreasy assigned the TButton OnClick event. Is there a way to solve the problem? Let's imagine I have Button1 for which the harcoded onclick event handler is: ShowMessage('This is Button1'); After my "parsing" I would like that the full event handler for Button1 becomes: ShowMessage('This is Button1'); // design time event handler code ShowMessage('You clicked on ' + (Sender as TButton).Name); // runtime added Note: I am looking for a soliution that allows me to use TButton as it is without inheriting from it.

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• How write My own control like button in C++\Win32 (not MFC or CLI)?

  - by Galymzhan

  Hello guys, Can anybody help, I'd like to write my own beautiful control, f.e. nonrectangle button (more beautiful). and it will be in another file (dll), for future use. The biggest problem is, that it will change design (color) when mouse cursor on it)) plz, help Galym

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• Printing contents of a dynamically created iframe from parent window

  - by certainlyakey

  I have a page with a list of links and a div which serves as a placeholder for the pages the links lead to. Everytime user clicks on a link an iframe is created in the div and its src attribute gets the value of the link href attribute - simple and clear, sort of external web pages gallery. What i do have a problem with is printing the contents of the iframe. To do this i use this code: function PrintIframe() { frames["name"].focus(); frames["name"].print(); } The issue seems to be that iframe is created dynamically by JQuery - when I insert an iframe right into the html code, the browser prints the external page all right. But with the same code injected by JavaScript nothing happens. I tried to use JQ 1.3 'live' event on "Print" link, no success. Is there a way to overcome this?

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• Accessing CoreData relationships

  - by georgeliquor

  I have the following core data model with two entities: entity "item" which holds name, date, description and a to many relationship "image". image is optional. entity "image" holds url, name and relationship to one item. I load the executed Fetchrequest into this NSArray "entityArray" This is what I do to display my data in a UITableView for example to display title in main cell: NSManagedObject *object = (NSManagedObject *)[entityArray objectAtIndex:indexPath.row]; cell.textLabel.text=[object valueForKey:@"title"]; Now I have no clue how to access my relationship image ([object valueForKey:@"image"]), because it contains more than just a string.

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• Rails validation issue with before_validation

  - by Chance

  I'm still fairly new to rails so I'm not sure what I'm missing here. I'm using GeoKit to geocode an address upon saving. I have a method that geocodes an address and if it fails to find it, it adds an error to the errors list. I've tested it in the console and it is failing on the geocode (presumably adding the error) but still saving successfully. acts_as_mappable before_validation_on_create :geocode_address before_validation_on_update :geocode_address validates_presence_of :street validates_presence_of :city validates_presence_of :state validates_presence_of :zip validates_presence_of :name validates_uniqueness_of :name def geocode_address geo=Geokit::Geocoders::MultiGeocoder.geocode ("#{street}, #{city}, #{state}, #{zip}") puts "geocoded: #{street}, #{city}, #{state}, #{zip}" if geo.success self.lat, self.lng = geo.lat,geo.lng else errors.add(:street, "Could not Geocode address") end puts "geo status: #{geo.success}" end Any help would be greatly appreciated, thanks :)

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• ASP.NET MVC2 TeplatedHelper doesn't render an ID of the HTML's markup

  - by Tony

  Hi, I have the code (snippet): The Model is the IEnumerable object of the Person's class: <% foreach (var item in Model) { %> <tr> <td><%= Html.DisplayFor(x=>item.Name) %></td> </tr> <% } %> it renders only labels like that: <td>Tommy</td> According to the link it should be rendering a HTML markup something like: but there is no the ID and the NAME property. Why ?

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• Use jQuery on a variable instead on the DOM ? [solved]

  - by Stef

  In jQuery you can do : $("a[href$='.img']").each(function(index) { alert($(this).attr('href')); } I want to write a jQuery function which crawls x-levels from a website and collects all hrefs to gif images. So when I use the the get function to retrieve another page, $.get(href, function(data) { }); I want to be able to do something like data.$("a[href$='.img']").each(function(index) { }); Is this possible ? ...UPDATE... Thanks to the answers, I was able to fix this problem. function FetchPage(href) { $.ajax({ url: href, async: false, cache: false, success: function(html){ $("#__tmp__").append("<page><name>" + href + "</name><content>" + html + "</content></page>"); } }); } See this zip file for an example how to use it.

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• Can I add a custom method to Core Data-generated classes?

  - by Andy

  I've got a couple of Core Data-generated class files that I'd like to add custom methods to. I don't need to add any instance variables. How can I do this? I tried adding a category of methods: // ContactMethods.h (my category on Core Data-generated "Contact" class) #import "Contact.h" @interface Contact (ContactMethods) -(NSString*)displayName; @end ... // ContactMethods.m #import "ContactMethods.h" @implementation Contact (ContactMethods) -(NSString*)displayName { return @"Some Name"; // this is test code } @end This doesn't work, though. I get a compiler message that "-NSManagedObject may not respond to 'displayName' " and sure enough, when I run the app, I don't get "Some Name" where I should be seeing it.

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• GDI+ Load a jpg and save as 24bit png problem

  - by wookey

  Problem Hello all! I have this code which takes my jpg image loops through altering pixels and finally saving it as a png type. The problem is that the resulting image has a bit depth of 32 bits. I need it to be 24 bit, can any one shiny some light on the correct method of setting it? Am I along the right tracks looking at setting the pixel format to PixelFormat24bppRGB? Code static inline void Brighten(Gdiplus::Bitmap* img) { int width = img->GetWidth()/8,height = img->GetHeight(), max = (width*height),r,g,b; Gdiplus::Color pixel; for(int a = 0,x = 0, y = -1; a < max; ++a) { x = a%width; if(x == 0) ++y; img->GetPixel(x,y,&pixel); r = pixel.GetR(); g = pixel.GetG(); b = pixel.GetB(); if (r > 245) r = 245; if (g > 245) g = 245; if (b > 245) b = 245; r = 10; g = 10; b = 10; pixel = Gdiplus::Color(r,g,b); img->SetPixel(x,y,pixel);; } } ULONG_PTR m_dwToken = 0; Gdiplus::GdiplusStartupInput input; Gdiplus::GdiplusStartupOutput output; Gdiplus::GdiplusStartup( &m_dwToken, &input, &output ); USES_CONVERSION_EX; Gdiplus::ImageCodecInfo* pEncoders = static_cast< Gdiplus::ImageCodecInfo* >( _ATL_SAFE_ALLOCA(1040, _ATL_SAFE_ALLOCA_DEF_THRESHOLD)); Gdiplus::DllExports::GdipGetImageEncoders(5, 1040, pEncoders ); CLSID clsidEncoder = pEncoders[4].Clsid; Gdiplus::Bitmap img1((CT2W)L"IMG_1.JPG"); Brighten(&img1); img1.Save((CT2W)L"IMG_1_R3.PNG",&clsidEncoder,NULL); Thanks in advance!

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• Duel Masters game in Java

  - by Arun Ramasubramanian

  I was trying to make a Duel Masters card game in Java using BlueJ, and came up with a lot of ideas. However, I could not exactly figure out how to sort a deck on basis of the card names in the game. I have an array of Card objects(each has, as its instance variables: String name, int cost, int civ), and I want to sort them based on name. ie: if I have the cards "Pyrofighter Magnus", "Bazagazeal Dragon" and another "Pyrofighter Magnus" in the array, the cards should be sorted on basis of their names. I know that I could use compareTo(), but is there an easier method? Anyone? Remember, the method that sorts the cards should be a modifier.

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• Programmatically Untag FB Photos with Javascript

  - by Tal

  Hello! I've spent the past hour hacking away at this: I want to write a Javscript routine to programatically untag myself from photos on Facebook. Once it works, I'll run it in the Firebug console and untag myself from all Facebook photos (there's no way to do this through the GUI). I wanted to see if you guys had some advice to get me on my journey. I have a few methods in mind but haven't come too far along quite yet. I've tried an AJAX approach by creating a new HTML request and pointing it to the remove_tag URL, which looks something like this: /ajax/photo_tagging_ajax.php?pid=(PICTURE_ID)&id=(PICTURE_OWNER_ID)&subject=(SOMETHING)&name=(YOUR+NAME)&action=remove Not surprisingly, this doesn't work (yet). I've been checking the HTTP response in Firebug and it's quite different than the one when I actually untag a picture. It's not even sending a POST request. Will this even be possible or am I dreaming? (it's almost 4AM)

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• fieldWithErrors not wrapping every error field

  - by Teef L

  Notice the following result when I submit blank :title and :description fields The validations are in the controller: class Question < ActiveRecord::Base validates_presence_of :title validates_presence_of :description And, the form is generated with those names: -form_for(@question) do |f| = f.error_messages = f.label :title = f.text_field :title, :size => 50, :onchange => remote_function(:url => {:action => :display_tag_suggestions}, :with => 'Form.Element.serialize(this)') #suggestions = f.label :description = f.text_area :description ... But, for some reason, only :title gets wrapped in the error div tags: <form action="/questions" class="new_question" id="new_question" method="post"> <div style="margin:0;padding:0"><input name="authenticity_token" type="hidden" value="6HQaiu1D0gBQcKw2pLeZP6Jvn0FSClPD5Sk9HwegzPg=" /></div> <div class="errorExplanation" id="errorExplanation"> <h2>2 errors prohibited this question from being saved</h2> <p>There were problems with the following fields:</p> <ul> <li>Title can't be blank</li> <li>Description can't be blank</li> </ul> </div> <label for="question_title">Title</label> <div class="fieldWithErrors"><input id="question_title" name="question[title]" onchange="new Ajax.Request('/questions/display_tag_suggestions', {asynchronous:true, evalScripts:true, parameters:Form.Element.serialize(this) + '&amp;authenticity_token=' + encodeURIComponent('6HQaiu1D0gBQcKw2pLeZP6Jvn0FSClPD5Sk9HwegzPg=')})" size="50" type="text" value="" /></div> <label for="question_description">Description</label> <textarea cols="40" id="question_description" name="question[description]" rows="20"></textarea> ... I don't think that behavior is expected. The problem most people have is that it's wrapping things with divs, which won't display properly. My problem is that fields aren't being wrapped with divs to begin with! I haven't made any (conscious) changes to how errors are handled, so I'm not sure why it's not working properly.

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• jQuery .get()/.post() doesn't send an updated cookie

  - by Markus

  Hello, I'am doing something like this: function setCookie(name, value, expire) { var exdate = new Date(); exdate.setDate(exdate.getDate()+expire); document.cookie=name+ "=" +escape(value)+((expire==null) ? "" : ";expires="+exdate.toGMTString()); } // When I click a button // Update the cookie setCookie("test", "1"); function getContent() { // Get the data of our new URL $.get("index.php", loadContent); } function loadContent(data) { // alert the new title // the PHP script is changing title after what cookie-value you have alert($("title", data).text()) } First of all, when Iam alerting it is still the last showing up. So I guess it doesn't send the changed cookies at all.. And for some reason I don't see the request in my Live HTTP Headers window... But also, if i request the URL(without the ajax) it works just fine What am I doing wrong here? Regards Markus

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• Unable to send Url in a Form field

  - by araja

  I am facing a problem while submitting a simple HTML form. Here is the form: <form name="form1" method="post" action="dest.php"> <input type="hidden" name="my_url" value="http://www.livrotek.com/book_image/thumb/12726851341.jpg" /> </form> When I submit this form, I get an apache error: You don't have permission to access dest.php on this server. If I change the value of "my_url" field to any value other than a URL, then it works fine.

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• getting namespace using libxml2

  - by iSight

  Hi, How can i get name space of an xml file using libxml2.

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• Can SPSiteDataQuery search both List and Libraries?

  - by Rich Bennema

  I have the following code: SPSiteDataQuery query = new SPSiteDataQuery(); query.ViewFields = "<FieldRef Name=\"UniqueId\" />"; query.Webs = "<Webs Scope=\"SiteCollection\" />"; query.Query = "<Where<Eq><FieldRef Name='MyCustomField' /><Value Type='Boolean'>1</Value></Eq></Where>"; query.Lists = "<Lists BaseType=\"1\" />"; DataTable results = site.RootWeb.GetSiteData(query); This searches all the Document Libraries in the site collection, but I want to search all the Lists as well. Is there a way to set the Lists property to search both at the same time?

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• how to create a dynamic class at runtime in Java

  - by Mrityunjay

  hi, is it possible to create a new java file from existing java file after changing some of its attributes at runtime?? Suppose i have a java file pubic class Student{ private int rollNo; private String name; // getters and setters // constructor } is it possible to create something like this, provided that rollNo is key element for the table.. public class Student { private StudentKey key; private String name; //getters and setters //constructor } public class StudentKey { private int rollNo; // getters and setters // construcotors } please help..

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• Access to Label value with Javascript

  - by streetparade

  I need to access to a value in a checkbox, the atribute value has content, so i need to place the id somewhere else i created a label, but i have not access to that value alert(check[i].label); // doesnt work where else can i place a value in checkbox. Please dont write that i can do this <input type='checkbox' id='bla' name='mybla' vlaue='myvalue'> Hy Where can i place some other values ? I tryed with this <input type='checkbox' id='bla' name='mybla' vlaue='myvalue' label='myothervalue'> Hy first i get all checkbox ect... and in the for loop i did this alert(check[i].label); // doesnt work How can i do that?

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• Keystore and Aliases - is there a use to multiple aliases?

  - by Steve H

  When exporting a signed Android application using Eclipse, is there a purpose to using multiple aliases? According to the official guide about signing, it's recommended that you sign all applications with the same certificate to allow your applications to share data, code and be updated in modular fashion. Assuming that "alias", "key" and "certificate" are essentially interchangeable in this context, is there a reason why someone would want to use different aliases for all their applications? The only reason I can think of is that it adds more security to your applications, in the sense that a compromised key/password doesn't compromise everything. Are there other reasons? Also, is the generated key dependent on the name of the alias? In other words, if you change the name of the alias but not the password, would the generated certificate be different? Thanks.

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• rails summing column values of rows with similar attributes

  - by butterywombat

  Hi all, I have a Sites table that has columns name, and time. The name does not have to be unique. So for example I may have the entries 'hi.com, 5', 'hi.com, 10', 'bye.com, 4'. I would like to sum up all the unique sites so that i get 'hi.com, 15' and 'bye.com, 4' for plotting purposes. How can I do that? (For some reference I was looking at http://railscasts.com/episodes/223-charts but I couldn't get the following (translated to my table) to work def self.total_on(date) where("date(purchased_at) = ?", date).sum(:total_price) end nor do I really understand the syntax of the 'where("date(purchased_at) = ?", date)' part. Thanks for helping a rails newbie!

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• C# Struct No Parameterless Constructor? See what I need to accomplish

  - by Changeling

  I am using a struct to pass to an unmanaged DLL as so - [StructLayout(LayoutKind.Sequential)] public struct valTable { public byte type; public byte map; public byte spare1; public byte spare2; public int par; public int min; public byte[] name; public valTable() { name = new byte[24]; } } The code above will not compile because VS 2005 will complain that "Structs cannot contain explicit parameterless constructors". In order to pass this struct to my DLL, I have to pass an array of struct's like so valTable[] val = new valTable[281]; What I would like to do is when I say new, the constructor is called and it creates an array of bytes like I am trying to demonstrate because the DLL is looking for that byte array of size 24 in each dimension. How can I accomplish this?

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• Performance: Subquerry or Joining

  - by Auro

  HelloHello I got a little Question about Performance of a Subquerry /Joining another table INSERT INTO Original.Person ( PID, Name, Surname, SID ) ( SELECT ma.PID_new , TBL.Name , ma.Surname, TBL.SID FROM Copy.Person TBL , original.MATabelle MA WHERE TBL.PID = p_PID_old AND TBL.PID = MA.PID_old ); This is my SQL, now this thing runs around 1 million times or more. Now my question is what would be faster? if I change TBL.SID to (Select new from helptable where old = tbl.sid) or if I add helptable to the from and do the joining in the where? greets Auro

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• Custom Tag Issue

  - by user1304570

  I got a problem in making custom tag in jsf2.0 for authentication.Actually I made a sample it get run successfully But When i am merging it with my project Its component class get skipped out.But When I remove Follwing entry from web.xml <context-param> <param-name> org.jboss.jbossfaces.JSF_CONFIG_NAME </param-name> <param-value>MyFaces-2.0</param-value> </context-param> It get run success fully .But It show a red line text in every page of my project i.e One or more resources have the target of 'head', but no 'head' component has been defined within the view.**

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