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• Screenshot from WPF application as SVG / vector graphic?

  - by stefan.at.wpf

  Hello, is it possible to create a screenshot of a WPF application as SVG / is there some WPF built-in function to get the XAML code for the current drawn window that then can be converted to SVG? I need some screenshots for documenting a WPF application and I'd like them to be zoomable like a WPF program is using e.g. Snoop or Vista Magnifyer. Thanks for any hint!

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• Can't Set Crystal Report Selection Formula Programatically

  - by eidylon

  Hello all, first, I can't stand Crystal! Okay, that's off my chest... Now, we have an old VB6 app we maintain for a client, which uses the Crystal Automation library to programatically change the record selection formulas in a bunch of Crystal Reports 8.5 reports. There are two reports which are ALMOST identical. I had to change them recently to add another field from another table. When I added the table in to the reports though, while it added it in the visual designer, it did not add it in the FROM clause of the SQL statement. So, I manually edited the SQL statement to add in the additional join. KO, works great. If i run the reports in Crystal preview mode, they work exactly as expected. Now, the users went to test the changes from within the VB app. One of the reports works fine and dandy. The other report however, is failing to set the selection formula as expected. The code sets the selection formulas using the function PESetSelectionFormula. I verified that the string being passed in to the function as the new selection formula is correct via a step-through examination of the variables. The call to PESetSelectionFormula seems to be working okay, and is returning a value of 1, which as near as I can find anywhere indicates success. (The other report, which is working fine from code is also returning 1.) However, the report is failing with an error: Error Code: 534 - Error detected by database DLL. The code, for debugging purposes dumps out the SQL string currently being used by the report. The SQL coming out of the report is: SELECT ... FROM ... WHERE ORDER BY ... As you can see, the WHERE clause is blank, which I would imagine is why the database DLL is upchucking on this statement. I don't understand why the automation library is not setting the WHERE clause even though the call to PESetSelectionFormula is being passed a valid string and is returning success. I thought perhaps it was because I had manually edited the SQL in the report to add the table it wasn't adding, but I did the same thing in the other nearly identical report, and that one is working fine. Anyone have any ideas why PESetSelectionFormula might report success but not actually do anything? P.S. I have already tried doing a Database Verify Database from the menus, and that said the report was all up to date and did not help at all.

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• Powerful search-replace GUI app for Mac?

  - by fig-gnuton

  What's the best dedicated search-and-replace GUI tool on a Mac? "Find & Replace It!" seems decent, but they've ridiculously disabled the replace function in the demo, so I can't give it a real test before paying. Is there anything else comparable or better?

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• Extending Jquery validate to show/hide div or clear div after validate is ran

  - by Shawn

  Right now i have all of my errors outputting to a div. Id like to catch the validate event and clear the div right before its ran of my old errors. Then id like to show/hide that div based on if it has any labels in it that were auto generated by the jquery validation plugin. I can do everything but figure out how to extend the event, run the stuff i need to, then call the validate function. Thanks!

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• Canonical Link Code - Need 2 Refactored Versions - Remove Param / Query Strings

  - by Bryan Hadaway

  function canlink() { echo '<link rel="canonical" href="http://' . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"] . '" />'; } Need one version that removes just & and everything after and another that removes ? and everything after, I've been looking for a clean minimalist solution for the past 2-3 days with nothing close. Thanks, Bryan

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• MooTools Tween in percent

  - by FatalRabbit

  Is it possible to tween an element in percent in MooTools? var slide = new Fx.Tween($('slide_box')); $('next_slide').addEvent('click',function(){ slide.start('left', '-100%'); }); But this code tween an element by 100px, not in percent.

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• PRINT statement in T-SQL

  - by ProfK

  Why does the PRINT statement in T-SQL seem to only sometimes work? What are the constraints on using it? It seems sometimes if a result set is generated, it becomes a null function, I assumed to prevent corrupting the resultset, but could it's output not go out in another result set, such as the row count?

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• PHP Sockets Not Working

  - by isurulucky

  Hi, I switched from Lighttpd server to WAMP and then found sockets in php are not working. But php is configured and working. (phpinfo() works) I removed the comment for the php_sockets.dll in php.ini @ C:\wamp\bin\php\php5.2.5.but still gives the error "Fatal error: Call to undefined function socket_create()". Any more configurations to do to enable sockets in php in WAMP? (php_sockets.dll is there as well, I've checked) Thank You!

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• Can continuations be used as a replacement for recursion?

  - by Sam

  The following function generates a 'stack level too deep (SystemStackError)' for n = 5,000 def factorial(n) n == 0 ? 1 : factorial(n -1) * n end Is there a way to avoid this error using continuations/callcc? Note: I know this can be implemented without recursion. e.g. def factorial2(n) (1..n).inject(1) {|result, n| result * n } end

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• Kohana ORM syntax question

  - by anthony

  I'm using the "join_table" function with Kohana's ORM to build a query. The following works: $category = ORM::factory('category')->join_table('product'); But this doesn't: $category = ORM::factory('category'); $category->join_table('product'); The documentation uses the second as an example, but it returns 0 while the first example returns "categories_products" which is correct. Any ideas?

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• wpf: getting combobox value

  - by Martin

  I have a WPF ComboBox named cbFileSize. I try to get is selected value like so: string tmp = cbFileSize.SelectedValue.ToString(); MessageBox.Show(tmp); But tmp gets set to "System.Windows.Control.ComboBoxItem: 16". Which function should I use to just get the value "16"?

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• How to display onbeforeunload dialog when appropriate?

  - by MartyIX

  I've got an editor in javascript on my webpage and I would like to ask user if he/she wants to leave the page even if there are unsaved changes. I know I can add custom message to the "onbeforeunload dialog" this way: window.onbeforeunload = function() { return 'You have unsaved changes!'; } (Source) but I want to display the dialog only where there really are some unsaved changes. How to do that? Thanks!

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• Changing an Actual Parameter in C#

  - by Lu Lu

  In C++, I have a function: void MyFunction(int p) { p=5; } Assume, I have: int x = 10; MyFunction(x); // x = 10 MyFunction(&x); // x = 5 How to archieve this in C# with condition: I create only one MyFunction.

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• Passing a ManagedObjectContext to a second view

  - by amo

  I'm writing my first iPhone/Cocoa app. It has two table views inside a navigation view. When you touch a row in the first table view, you are taken to the second table view. I would like the second view to display records from the CoreData entities related to the row you touched in the first view. I have the CoreData data showing up fine in the first table view. You can touch a row and go to the second table view. I'm able to pass info from the selected object from the first to the second view. But I cannot get the second view to do its own CoreData fetching. For the life of me I cannot get the managedObjectContext object to pass to the second view controller. I don't want to do the lookups in the first view and pass a dictionary because I want to be able to use a search field to refine results in the second view, as well as insert new entries to the CoreData data from there. Here's the function that transitions from the first to the second view. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic may go here -- for example, create and push another view controller. NSManagedObject *selectedObject = [[self fetchedResultsController] objectAtIndexPath:indexPath]; SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondView" bundle:nil]; secondViewController.tName = [[selectedObject valueForKey:@"name"] description]; secondViewController.managedObjectContext = [self managedObjectContext]; [self.navigationController pushViewController:secondViewController animated:YES]; [secondViewController release]; } And this is the function inside SecondViewController that crashes: - (void)viewDidLoad { [super viewDidLoad]; self.title = tName; NSError *error; if (![[self fetchedResultsController] performFetch:&error]) { // <-- crashes here // Handle the error... } } - (NSFetchedResultsController *)fetchedResultsController { if (fetchedResultsController != nil) { return fetchedResultsController; } /* Set up the fetched results controller. */ // Create the fetch request for the entity. NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; // Edit the entity name as appropriate. // **** crashes on the next line because managedObjectContext == 0x0 NSEntityDescription *entity = [NSEntityDescription entityForName:@"SecondEntity" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // <snip> ... more code here from Apple template, never gets executed because of the crashing return fetchedResultsController; } Any ideas on what I am doing wrong here? managedObjectContext is a retained property. UPDATE: I inserted a NSLog([[managedObjectContext registeredObjects] description]); in viewDidLoad and it appears managedObjectContext is being passed just fine. Still crashing, though. Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '+entityForName: could not locate an NSManagedObjectModel for entity name 'SecondEntity''

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• What's the difference between PopUpButton, PopUpMenuButton and ComboBox controls in Flex?

  - by Saleh Al-Zaid

  I find PopUpButton, PopUpMenuButton and ComboBox controls have the same function and behavior in Flex. What's the difference between them? Are they redundant? Thanks

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• R/XLL: Interface to call XLL method in R

  - by Neerav

  I am trying to call the methods defined in the XLL addin(for Excel) from R. Something similar to this Python code: import os from win32com.client import Dispatch Path = 'myxll.xll' xlApp = Dispatch("Excel.Application") xlApp.RegisterXLL(Path) # function call from excel # =xllfunction("param1","param2",...) result = xlApp.run('xllfunction', "param1","param2",...) Is there any library in R that does the XLL interface? Thanks for your help.

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• How-to index arrays (tags) in CouchDB using couchdb-lucene

  - by Lucas

  The setup: I have a project that is using CouchDB. The documents will have a field called "tags". This "tags" field is an array of strings (e.g., "tags":["tag1","tag2","etc"]). I am using couchdb-lucene as my search provider. The question: What function can be used to get couchdb-lucene to index the elements of "tags"? If you have an idea but no test environment, type it out, I'll try it and give the result here.

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• Is there any decent OpenGL SceneGraph API/framework?

  - by JohnIdol

  I am new to OpenGL. Wondering if there is any good Scenegraph API/framework for OpenGL. At the moment I am using glut with a custom node based solution: I am setting children and siblings for each node the calling a traverse function. I'd like a more flexible solution when it comes to managing dynamic elements in the scene.

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• Accessing not Non-QObject-based objects from Qt Script

  - by uni

  Is there any nice and simple way to access non QObject-based classes, such as QXmlQuery, QDateTime etc. from Qt Script? The only way I see is to wrap QXmlQuery in another class that inherits QObject and declare as slot every function which I need to access from Qt Script: void MyXmlQuery::setQuery ( const QString & sourceCode, const QUrl & documentURI ) { realxmlquery_.setQuery(sourceCode, documentURI); }

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• using javascript to track another javascript script?

  - by FurtiveFelon

  Hi all, I was just wondering whether there are any way (libraries, frameworks, tutorials) to do javascript tracking with another script? Basically, i want to track as the user work with the site, which function gets executed with what parameters and so on, as detailed as possible. thanks a lot!

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• Casting functions -- Is it a code smell?

  - by Earlz

  I recently began to start using functions to make casting easier on my fingers for one instance I had something like this ((Dictionary<string,string>)value).Add(foo); and converted it to a tiny little helper function so I can do this ToDictionary(value).Add(foo); Is this a code smell? (also I've marked this language agnostic even though my example is C#)

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• Rmagick, Watermarks, and Image Transparency

  - by Hulihan Applications

  I'm having trouble making an image semi-transparent. I have one image I'd like to set to 50% opacity and position it over another image(using composite operator:OverCompositeOp). Anyone know how an easy way to do such a thing? A little background: I'm trying to make a good watermark to place over images, but I'm not fan of rmagick's built-in watermark() function or the shade-composite method.

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• Applying effects to jquery-ui tabs

  - by VikingGoat

  Is it possible to apply an effect to a jquery-ui tab, I haven't seen any examples of it, and I'm fairly sure that if it is possible the following is incorrect: <script type="text/javascript"> $(function() { $("#tabs").tabs(); $("#tabs").effect(slide,options,500,callback); }); </script>

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• MATLAB date selection popup calendar for gui

  - by Doresoom

  Does anyone know of a method to display a popup date selection calendar in a MATLAB gui? I know the financial toolbox has a uicalendar function, but unfortunately I don't have that toolbox. I have a hunch I'm going to have to use some Java or some other language for this one, which I know nothing about. I'm looking for something similar to this: which would return a date string after the user selects the date.

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• C# code generator

  - by Neir0

  Can someone recommend a simple c# code generator. I just looking something with methods like: GenClass = CreateNewClass(AccessModifier,Name......) GenClass.Add(new Method(AccessModifier,RetType,Name....){code=@"....."} GenClass.Add(new Property(AccessModifier,Type, Name....) ........... etc and after creating all classes\methods and other members we call Code Generation function(where we can specific some parametrs) Is there such opensource code generator?

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