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• How can I make a DateTimePicker display an empty string?

  - by brass-kazoo

  I would like to be able to display a DateTimePicker that has a default value of nothing, i.e. no date. For example, I have a start date dtTaskStart and an end date dtTaskEnd for a task, but the end date is not known, and not populated initially. I have specified a custom format of yyyy-MM-dd for both controls. Setting the value to null, or an empty string at runtime causes an error, so how can I accomplish this? I have considered using a checkbox to control the enabling of this field, but there is still the issue of displaying an initial value.. Edit: Arguably a duplicate of the question DateTimePicker Null Value (.NET), but the solution I found for my problem is not a solution for that question, so I think it should remain here for others to find..

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• Cannot load JRubyEngine because org.apache.bsf.util.BSFEngineImpl not found

  - by Ceilingfish

  Hi, I'm trying to use JRuby in a custom application, and I don't seem to be able to load the JRubyEngine object. My class looks like functionally similar to this: public class ScriptEngine { private static ScriptEngine engine = new JRubyEngine(); public void run(final String script, final Map<String,Object> input) { final Bindings context = engine.createBindings(); context.putAll(input); try { engine.eval(script,context); } catch (ScriptException e) { log.error("Failed to execute script: "+getScript(),e); } } } However this fails at compilation with the complaint: [javac] Compiling 486 source files to /workspace/myProject/build/src [javac] /workspace/myProject/src/net/ceilingfish/ScriptEngine.java:31: cannot access org.apache.bsf.util.BSFEngineImpl [javac] class file for org.apache.bsf.util.BSFEngineImpl not found [javac] private static ScriptEngine engine = new JRubyEngine(); [javac] ^ [javac] 1 error Does anyone have any insights on where I can get this class from? Or if there is a better way to be instantiating a JRubyEngine object.

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• paypal redirect on successful checkout

  - by Graeme Leighfield

  I am trying to get my Paypal subscription to redirect to a custom page after a successful checkout. Before submitting to Paypal I overload the submit handler, run my own function (to store details) and return a unique id. I want to attach that id to my return URL. (as a GET or POST var so to speak) I have turned auto redirect "on" in my Paypal sandbox sellers preferences, but it only seems to re-direct to the URL that I HAVE to put in there. using the <input type="hidden" name="return" value="someurl" /> does no seem to work. I want it this way so that I can capture the user information when entered with a "non-paid" flag, then via the IPN I can update that record with a "PAID" flag, and I want to use the unique ID to tie it all together so to speak. Any advice or a different approach is welcomed. Many thanks!

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• Getting the version of a COM object

  - by Shao

  I am accessing a .NET COM object from C++. I want to know the version information about this COM object. When I open the TLB in OLEVIEW.exe I can see the version information associated with the coclass. How can I access this information from C++? This is the information I get: [ uuid(XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX), version(1.0), custom(XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX, XXXX) ] coclass XXXXXXXX{ [default] interface XXXXXXXX; interface _Object; interface XXXXXXXX; };

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• Xerces SAX parser ignore the xmlxs:xsi attribute as an attribute of an element

  - by user603301

  Hi, Using Xerces SAX parser I try to retrieve all elements and their attributes of this XML file: -------------- Begin XML file to parse ---------------- <?xml version="1.0" encoding="UTF-8"?> <invoice xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="my.xsd"> <parties> (...) -------------- End XML file to parse ---------------- When getting the attributes for the element 'invoice', Xerces++ does not insert the 'xmlns:xsi' attribute in the list of 'Attributes' for the element 'invoice'. However, the attribute 'xsi:noNamespaceSchemaLocation' is inserted in the list. Why? Is there a specific reason from an XML standard point of view ? Is there a way to configure Xerces++ SAX parser so that it inserts this attribute as well? (The documentation on setting the parser properties does not tell how). Thanks for your help.

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• Adding scrollbars to UserControl

  - by Bevin

  I am trying to add vertical and horizontal scrollbars to my UserControl with the HorizontalScroll and VerticalScroll properties, but I am having extreme issues. My problem arises when I drag or manipulate the scroll box on the bar. When I let it go, it simply jumps back to the start position! I know of the AutoScroll property, but I do not want to use it since I want to be able to control every aspect of my scrollbars, and I don't want it to be done automatically. Also, according to the documentation, AutoScroll is for "[enabling] the user to scroll to any controls placed outside of its visible boundaries" which isn't what I want. I just want scrollbars. ...aaand I suppose I could add VScrollBar and HScrollBar to the control, but why should I do this when the scroll functionality already exists? Seems like a waste to me.

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• Creating a System.Web.UI.Page programatically in IHTTPHandler

  - by ObiWanKenobi

  I am trying to use the ASP.NET (3.5) "Routing Module" functionality to create custom pages based on the contents of the URL. Various articles, such as this one: http://blogs.msdn.com/mikeormond/archive/2008/05/14/using-asp-net-routing-independent-of-mvc.aspx explain how to use ASP.NET Routing to branch to existing pages on the web server. What I would like to do is create the page on-the-fly using code. My first attempt looks like this: public class SimpleRouteHandler : IRouteHandler { public IHttpHandler GetHttpHandler(RequestContext requestContext) { string pageName = requestContext.RouteData.GetRequiredString("PageName"); Page myPage = new Page(); myPage.Response.Write("hello " + pageName); return myPage; } } But this throws an HTTPException saying "Response is not available in this context." at the Response.Write statement. Any ideas on how to proceed? UPDATE: In the end, I went with an approach based on IHttpModule, which turned out to be rather easy.

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• Change Toast Font

  - by mgpyone

  Currently, I'm trying to develop an app. and I don't know how to change the Toast font. . final OnClickListener clickListener = new OnClickListener() { public void onClick(View v) { try { Toast.makeText(nova.this,"Hello", 500000).show(); } catch (Exception e) { Toast.makeText(nova.this,"Exception:" +e, 500000); } } }; I want to change the text "Hello" with custom font I've tried with TypeFace. and Then, I want to set a variable at the place "TextClicked" .. I've tried with a local variable .. but it doesn't work any help with example source code will be really great for me.

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• PHP DOMXml XPath of recursive Xpointer

  - by user256007

  My xml document reflects an Object. as referential Recursion is possible in objects and arrays. I need to reflect that in reproduced XML Structure too. Currently I am using Unique IDs to identify each node separately and a node like <recursion refer="IDREF"> and specifying the ID of the referenced Element. But in This way I need My Own Custom XPath resolver cause I want to let the users go deeper into the recursive node through the Identifying IDREF (Hope I am able to make you understand). So is there any better/liteweight solution ?? might be XPointer or XLink (I am not sure). Any help ??

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• C# UserControl factory

  - by user1112111

  Let's say you have two classes that extend UserControl. Each of the controls provides a custom event (this could be done by using an interface). You want to display one of the controls in the odd days and the other in the even days. You also want to be able to drag&drop (Visual Studio) the UserControl on your form without knowing what the Control type will finally be. How do you do that ? Is the factory pattern useful here ?

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• Is there a good charting library for iPhone?

  - by Mike Akers

  I have a need to render and display charts (bar charts for now, but more types may be needed later) in an iPhone app I'm working on. I've done some looking around and it doesn't look like there are any really good, mature charting libraries for iPhone yet. I've also looked for something written for Cocoa on the Mac that can be adapted, but haven't found anything great yet. Anybody dealt with this before? Any recommendations? I did find Core Plot, but it seems to be in the early stages of development. Edit to add some details of requirements (as they currently stand ;) ) Bar Charts Horizontal bar charts Double stacked bar charts Axis labels (including rotated 90 degrees on the y axis) Labels above each bar on the chart Shaded or custom backgrounds

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• BindData to ITemplate for GridView in code behind

  - by tbischel

  How do I programmatically bind data to a custom item template column for a GridView? So far, I've done something similar to this: TemplateField foo = new TemplateField(); foo.ItemTemplate = new bar(); this.GridView1.Columns.Add(foo); where bar is like this: public class bar : ITemplate { public bar() { } public void InstantiateIn(Control container) { DropDownList ddl = new DropDownList(); container.Controls.Add(ddl); } } (the actual dropdownlist is populated) But ITemplate doesn't contain any kind of data binding properties to implement, and the TemplateField class doesn't seem to have any either... What do I do?

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• Drawbacks to using background-repeat only for colors?

  - by ineedtosleep

  So I need some custom colors on a layout, but I'm looking for a better way of doing it other than just slapping a giant picture with (background: url(something.jpg)) in the layout. Mostly I'm thinking of getting a color palette (i.e. from Adobe Kuler, colourlovers, etc.), getting a 5x5 sample of each color and sticking them in an array for CSS sprites or just as separate files and accessing them through: .color-one {transparent url(./one.gif) repeat} and just reusing that whenever I'd like to use the color. Are there any drawbacks to doing it this way? And if there are should I just stick with web-safe colors or is there a better way of doing this?

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• Create user variable in Intellij File Template

  - by Matt Broekhuis

  I am trying to use Intellij's file templates (not live templates) to help mitigate how much boilerplate code I use when making Services, daos, and their interfaces. I am able to use all the system defined variables just fine, such as ${PACKAGE_NAME} What I want though, is to be able to use my own variable names, like ${MY_USER_INPUT} however, when i do this like above, I get an error The documentation says : It is also possible to specify arbitrary number of custom variables in format ${<VARIABLE_NAME>}. and then Intellij is supposed to prompt the user for the value. However, this just plain doesn't work for me. What am I missing?

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• ResolveURL not resolving in a user control

  - by WebJunk

  I'm trying to use ResolveUrl() to set some paths in the code behind of a custom ASP.NET user control. The user control contains a navigation menu. I'm loading it on a page that's loading a master page. When I call ResolveUrl("~") in my user control it returns "~" instead of the root of the site. When I call it in a page I get the root path as expected. I've stepped through with the debugger and confirmed, ResolveUrl("~") returns "~" in my user control code behind. Is there some other way I should be calling the function in my user control code behind to get the root path of the site?

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• Spring @Autowired and WebApplicationContext in Tomcat

  - by EugeneP

  @Autowired works only once. What to do to make it wire the bean every time the Servlet is recreated? My web-app (Tomcat6 container) consists of 2 Servlets. Every servlet has private fields. Their setters are marked with @Autowired In the init method I use WebApplicationContextUtils ... autowireBean(this); It autowires the properties marked with @Autowired once - during the initialization of the Servlet. Any other session will see these fields values, they will not be rewired after the previous session is destroyed. What to do to make them rewire them each time a Servlet constructor is called? a) Put the autowiring into the constructor? Or better 2) get a web app context and extract a bean from there?

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• Filtering by category in Magento 1.4

  - by Sam

  Hi All I have a custom module I made to show featured products on the homepage. I set it up to show products that are in a ‘featured’ category. It works fine in 1.3, but now in 1.4 I get the following error: SQLSTATE[42S22]: Column not found: 1054 Unknown column ‘e.category_ids’ in ‘where clause’ Here’s my code: $_productCollection = Mage::getResourceModel('reports/product_collection') ->addAttributeToSelect('*') ->addAttributeToFilter('visibility', $visibility) ->addAttributeToFilter('category_ids',array('finset'=>$featuredcategory)) $_productCollection->load(); The featured category is specified from the admin. Anyone any ideas what might be up?

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• Mootools not loading fast enough IE6

  - by Tom

  Very random and annoying problem with IE6. We keep our common JS files on a resources server so we only have to update them in one place. As well as our custom classes we also keep our build of mootools and more on the resources server and link to it in the head of our sites. This is fine in all the browsers accept IE6. In IE6 it seems to not loads the core quick enough from the external link before trying to process the mootools code in my site.js file. It will go wrong on the first line "windows.addEvent". If i put a mootools core in a folder where the site is though its fine. Does anyone know why it might be doing this and if so a way around it, but still keeping the files on the resources domain? Thanks Tom

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• Link to audio in XHTML/EPUB

  - by wxs

  I'm looking into synchronizing an ebook in epub format (so the content is in XHTML) to an audio file. I'm thinking of putting something along the lines of: <a class="audiolink" href="sound.ogg?t=1093"></a> into the body of the document, and then have a custom epub reader that recognizes those tags and synchronizes the audio accordingly. That does seem like a bit of a hack to me though, especially the use of a special class name. Does anyone have any pointers to how this may be done in a more standards-compliant manner (or somewhere where it has been done before)? Ebooks with audio annotation seem like an idea that may already be out there.

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• Cropping an image, saving output to a new file and get crop coordinates

  - by synic

  I'm interfacing with a service that allows you to upload an image, and also upload coordinates of a thumbnail of that image. I'm thinking that (if there isn't some sort of prefab Activity specifically for this) that I can use Android's crop utility. The only problem is that I can't overwrite the original file, the crop window needs to have a custom message (instead of "crop image"), and I'll need the coordinates of the crop. Is this possible? Is there another way to do this without writing my own Activity?

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• Basic refactoring features (e.g., Rename) unavailable when editing code in an aspx/ascx files

  - by DanM

  I was just editing some C# code between <% %> tags in an .ascx file, and I noticed that the Refactor contextual menu is unavailable. And even if I manually add items from this menu to a custom toolbar, they are disabled when viewing aspx/ascx files. I usually only have small snippets of C# code in my aspx/ascx files, but it would still be nice to be able to perform refactoring operations on any code that exists between <% %> tags. I feel like I'm going back to the dark ages when I have to use find/replace to change the name of a variable. Questions Is there a way to enable Visual Studio's refactoring features while viewing aspx/ascx files in Visual Studio? Are there any Visual Studio plug-ins (preferably free) that offer this kind of functionality?

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• Does Process.StartInfo.Arguments support a UTF-8 string?

  - by Patrick Klug

  Can you use a UTF-8 string as the Arguments for a StartInfo? I am trying to pass a UTF-8 (in this case a Japanese string) to an application as a console argument. Something like this (this is just an example! (cmd.exe would be a custom app)) var process = new System.Diagnostics.Process(); process.StartInfo.Arguments = "/K \"echo ????????\""; process.StartInfo.FileName = "cmd.exe"; process.StartInfo.UseShellExecute = true; process.Start(); process.WaitForExit(); Executing this seems to loose the UTF-8 string and all the target application sees is "echo ?????????" When executing this command directly on the command line (by pasting the arguments) the target application receives the string correctly even though the command line itself doesn't seem to display it correctly. Do I need to do anything special to enable UTF-8 support in the arguments or is this just not supported?

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• flex datagrid re-assign dataprovider

  - by gauravgr8

  Hi, I am working on a datagrid with custom itemRenderer & [Bindable]xmllist as dataprovider. Now the changes done in xmllist are not reflected on datagrid UI until unless I re-assign the dataprovider as the same xmllist. As the dataprovider is Bindable so re-assigning is not required. But it was not working so I re-assigned the xmllist to the dataprovider of datagrid. It worked. Now my problem is when I re-assign the dataprovider my datagrid flicker(refreshes). It should not happen. 1) Is there any way out to avoid re-assigning of dataprovider? 2) Is there any way to stop flickering of datagrid on re-assigning the dataprovider? Thanks in advance.

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• UITextFields losing values after UINavigationController activity

  - by Dan Ray

  This is going to be hard to demonstrate in code, but maybe you can picture it with me. I have a view that contains two UITextFields, "title" and "descr". That same view contains two UIButtons that push another controller onto the navController to get more detail from the user about the object we're assembling and ultimately uploading to my server. It appears that pushing another view on, doing something, and popping it back off results in the two UITextFields keeping their content VISUALLY, but the .text property of those fields becomes NULL. I've confirmed that if I do my two push-pop fields before filling in those UITextFields, I get my data when I upload, and if I do them in the opposite order, I don't. It LOOKS like there's data there, but I get nothing when I NSLog their .text properties. Is this normal? Do I need to just design around this? Or is this as weird as it seems, and I should be looking deeper at causes of this?

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• What's the simplest way to ask for user input through Modal in Win Form

  - by Refracted Paladin

  What is the simplest way to implement a Modal(popup) MessageBox that allows a custom value to be entered and returned. In my case, a String. Maybe I am over thinking this but I figured I'd ask. I plan to just create a new Form. Add a label, a textbox, two buttons. Assign the textbox to a property and from my main form call a ShowDialog() on it. Will I be able to still access the property that way or should I somehow return the value? Is this a decent way of doing this?

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