Search Results

Search found 12269 results on 491 pages for 'universal reference'.

Page 285/491 | < Previous Page | 281 282 283 284 285 286 287 288 289 290 291 292  | Next Page >

  • SQL Server: avoiding hard coding of database name in cross-database views

    - by codeulike
    So, lets say you have two SQL Server Databases on the same server that reference each others tables in their Views, Functions and Stored Procedures. You know, things like this: use database_foo create view spaghetti as select f.col1, c.col2 from fusilli f inner join database_bar.dbo.conchigli c on f.id = c.id (I know that cross-database views are not very good practice, but lets just say you're stuck with it) Are there any good techniques to avoid 'hard coding' the database names? (So that should you need to occasionally re-point to a different database - for testing perhaps - you don't need to edit loads of views, fns, sps) I'm interested in SQL 2005 or SQL 2008 solutions. Cheers.

    Read the article

  • POSIX threads and signals

    - by Donal Fellows
    I've been trying to understand the intricacies of how POSIX threads and POSIX signals interact. In particular, I'm interested in: What's the best way to control which thread a signal is delivered to (assuming it isn't fatal in the first place)? What is the best way to tell another thread (that might actually be busy) that the signal has arrived? (I already know that it's a bad idea to be using pthread condition variables from a signal handler.) For reference about why I want this, I'm researching how to convert the TclX package to support threads, or to split it up and at least make some useful parts support threads. Signals are one of those parts that is of particular interest.

    Read the article

  • View problem - how to show integer from activity in XML?

    - by Oliver Goossens
    Hi there, I started two days ago with android, gone through the hello android stuff and also started to read the Hello Android book, which is great. PROBLEM: I use in my app - VERY EASY APP- the XML output. So basically the main activity just tells the android to show the XML layout of main. But what if I have in the activity - code defined integer variable and I want this integer variable also be shown on the display? How do I PUSH the integer variable to the XML??? From main XML reference to other strings in XML is easy - @string/app_name ... but how do I use the integer variable from the activity? Please help Thank you Oliver

    Read the article

  • How to debug unreleased COM references from managed code?

    - by Marek
    I have been searching for a tool to debug unreleased COM references, that usually cause e.g. Word/Outlook processes to hang in memory in case the code does not call Marshal.ReleaseCOMObject on all COM instances correctly. (Outlook 2007 partially fixes this for outlook addins, but this is a generic question). Is there a tool that would display at least a list of COM references (by type) held by managed code? Ideally, it would also display memory profiler-style object trees helping to debug where the reference increment occured. Debugging at runtime is not that important as being able to attach to a hung process - because the problem typically occurs when the code is done with the COM interface and someone forgot to release something - the application (e.g. winword) hangs in memory even after the calling managed application quits. If such tool does not exist, what is the (technical?) reason? It would be very useful for debugging a lot of otherwise very hard to find problems when working with COM interop.

    Read the article

  • Javascript top variable in IE8

    - by Jim Rootham
    I am trying to reference a javascript function in a .js file loaded in my main page from an iframe using the 'top' variable. It works in FF, Safari, and IE6 but not in IE8. The snippet is (assigned to onmouseover): top.set_image(this, 'images/login_h.png') Where set_image is my function. The error is "Object does not support this function" Also, I have been looking for the definition of top. I can't find it in the ECMAScript specification or the w3schools site and Google is unhelpful (who'da thunk top was a common word?).

    Read the article

  • Importing a function/class from a Python module of the same name

    - by Brendan
    I have a Python package mymodule with a sub-package utils (i.e. a subdirectory which contains modules each with a function). The functions have the same name as the file/module in which they live. I would like to be able to access the functions as follows, from mymodule.utils import a_function Strangely however, sometimes I can import functions using the above notation, however other times I cannot. I have not been able to work out why though (recently, for example, I renamed a function and the file it was in and reflected this rename in the utils.__init__.py file but it no longer imported as a functions (rather as a module) in one of my scripts. The utils.__init__.py reads something like, __all__ = ['a_function', 'b_function' ...] from a_function import a_function from b_function import b_function ... mymodule.__init__.py has no reference to utils Ideas?

    Read the article

  • Get XAML from WPF Custom RichTextFormat

    - by Erika
    I've looked at other posts, but i cant seem to find something that works. I have a custom control WPF RichTextBox and would like to obtain the XAML from this control. I have tried the following //rt is the name of this particular custom richtextbox TextRange range = new TextRange(rt.Document.ContentStart, rt.Document.ContentEnd); MemoryStream stream = new MemoryStream(); range.Save(stream, DataFormats.Xaml); string xamlText = Encoding.UTF8.GetString(stream.ToArray()); return xamlText; but this doesnt seem to work :s I can access the rt.Document.Content start etc but it seems to crash there "Object Reference not set to instance of an object". I am using the richtextbox directly from the .xaml.cs so it should be initiated and so on :s. Any Ideas or other ways to get the XAML from a richtextbox pls? (i'm requiring the XAML cos i actually want to get the HTML.. if theres some other direct manner perhaps?)

    Read the article

  • Select a subset of foreign key elements in inlineformset_factory in Django

    - by Enis Afgan
    Hello, I have a model with two foreign keys: class Model1(models.Model): model_a = models.ForeignKey(ModelA) model_b = models.ForeignKey(ModelB) value = models.IntegerField() Then, I create an inline formset class, like so: an_inline_formset = inlineformset_factory(ModelA, Model1, fk_name="model_a") and then instantiate it, like so: a_formset = an_inline_formset(request.POST, instance=model_A_object) Once this formset gets rendered in a template/page, there is ChoiceField associated with the model_b field. The problem I'm having is that the elements in the resulting drop down menu include all of the elements found in ModelB table. I need to select a subset of those based on some criteria from ModelB. At the same time, I need to keep the reference to the instance of model_A_object when instantiating inlineformset_factory and, therefore, I can't just use this example. Any suggestions?

    Read the article

  • How to be sure that my MVC project is runting on the correct version after upgrade to vs2010?

    - by Stephane
    I just installed visual studio 2010 and upgraded my MVC project (which was running on MVC RC2 in visual studio 2008). visual studio 2010 updated every project file to target the framework 4.0. But the system.web.dll is pointing to C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET MVC 2\Assemblies\System.Web.Mvc.dll in VS2010 object browser, I have every dll showing up in multiple versions as expected (3.5.0.0 and 4.0.0.0) except for the System.Web.Mvc dll which doesn't show any version and points to the path I mentioned above. Isn't this namespace point to the Framework folder like the System.Web namespace? C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\System.Web.dll

    Read the article

  • How to control allowed HTML tags in WMD Editor?

    - by Toto
    I am trying to some-how set the valid HTML tags and attributes users would be able to use in WMD Editor in my site. For example, I want to forbid the user to directly set the font size, color, typeface and so on, which is trivial to do with the default settings typing something like: <span style="font-size: 45px; color:#FF0000">Some intrusive text here</span>. I think the way to implement this is through the "wmd_options", but I have not found any documentation or reference regarding this, giving the fact that the 'Options demo' seems to be the only public documentation and it does not show how should I do what I have described above. I've send this same question to [email protected] but didn't get any reply. As stackoverflow uses this editor someone reading this or maybe Jeff knows the answer ;) Thanks in advance!

    Read the article

  • How to change line thickness in iText?

    - by drasto
    I'm drawing images to pdf using Java framework iText. I need to draw lines of specified width. There is a method setLineWidth(float width) in class PdfContentByte that should change it. However no matter what value I pass as its parameter the lines drawn are always extra thin. There is following line in javadoc of setLineWidth: The line width specifies the thickness of the line used to stroke a path and is measured in user space units. I don't know what is "space unit". Everything else in iText seems to be measured in point(around 1/72 inch). I cant find any reference to what are those "space units" and how to change them. code: to.setLineWidth(thickness); to.moveTo(x, y); to.lineTo(x + 100, y + 100); Variable to contains instance of PdfContentByte.

    Read the article

  • Fields of class, are they stored in the stack or heap?

    - by Mirek
    I saw a question yesterday which raised (for me) another question. Please look at the following code: public class Class1 { int A; //as I uderstand, int is value type and therefore lives in the stack } class Class2 { Run() { Class1 instance1 = new Class1(); instance1.A = 10; //it points to value type, but isnt this reference (on heap)? } } Or while creating the instance of Class1, its field types are created on the heap as well? But then I do not understand when it would really be on the stack as almost always you need to create an instance of object in order to use it fields.

    Read the article

  • DDD and IOC Containers

    - by MegaByte
    Hi Im fairly new with DDD and Im trying to use IOC in order to loosen up my tightly coupled layers :) My C# web application consists of a UI, domain and persistence layer. My persistence layer references my domain layer and contains my concrete repository implementations and nhibernate mappings. Currently my UI references my domain layer. My question : How do I use an IOC container to inject my concrete classes, in my persistence layer, into my domain layer? Does this meen that my UI should also reference my persistence layer?

    Read the article

  • How to treat an instance variable as an instance of another type in C#

    - by Ben Aston
    I have a simple inheritance heirarchy with MyType2 inheriting from MyType1. I have an instance of MyType1, arg, passed in as an argument to a method. If arg is an instance of MyType2, then I'd like to perform some logic, transforming the instance. My code looks something like the code below. Having to create a new local variable b feels inelegant - is there a way of achieving the same behavior without the additional local variable? public MyType1 MyMethod(MyType1 arg) { if(arg is MyType2) { MyType2 b = arg as MyType2; //use b (which modifies "arg" as "b" is a reference to it)... } return arg; }

    Read the article

  • LINQ query checks for null

    - by user300992
    I have a userList, some users don't have a name (null). If I run the first LINQ query, I got an error saying "object reference not set to an instance of an object" error. var temp = (from a in userList where ((a.name == "john") && (a.name != null)) select a).ToList(); However, if I switch the order by putting the checking for null in front, then it works without throwing any error: var temp = (from a in userList where ((a.name != null) && (a.name == "john")) select a).ToList(); Why is that? If that's pure C# code (not LINQ), I think both would be the same. I don't have SQL profiler, I am just curious what will be the difference when they are being translated on SQL level.

    Read the article

  • Visual Studio autoclean?

    - by kubal5003
    Hello, I have a solution with multiple projects - executable, library, and others(unimportant right now). Library contains EF entity classes and executable uses them. When I'm working on some code from the executable then every entity that I use is marked as an error and compiler says that I should check usings and references. Reference in the executable project is set to library project(not the dll itself). When I build the library project then everything gets back to normal, but when I start typing then it happens again. I could live with it, but intelli sense isn't working and that is quite a disadvantage. Any ideas?

    Read the article

  • ASP.NET MVC SSL POST Error

    - by RyanFetz
    I have a Logon page in a MVC (1.0) application that I am securing with SSL, I have an attribute that inspects the request for the page and redirects to a https uri when it is requested with http. This all works, however when I post the form content i get the following error: The parameters dictionary contains a null entry for parameter 'rememberMe' of non-nullable type 'System.Boolean' for method 'System.Web.Mvc.ActionResult LogOn(System.String, System.String, Boolean, System.String)' in 'DAC.US.Web.Portal.Controllers.AccountController'. To make a parameter optional its type should be either a reference type or a Nullable type. Parameter name: parameters here is the controller code... // // GET: /Account/LogOn [RequiresSSL] public ActionResult LogOn(string ReturnUrl) { if (TempData["Message"] != null) ViewData["Message"] = TempData["Message"]; TempData["Message"] = null; ViewData["ReturnUrl"] = ReturnUrl ?? "/Home"; return View(); } Again, the RequireSSL Attribute works, but the POST from that SSL uri does not. What is not working?

    Read the article

  • How to I create an HQL query to return objects in a many to many relationship?

    - by Dave
    Hi there. I have an application that includes 2 classes Club and Article. These are mapped in Hibernate as a many to many relationship. As a result, hibernate has created a table called CLUB_ARTICLE which it uses to manage the many to many relation ship. The CLUB and ARTILCE tables have no direct reference to each other and the mapping is only represented in the CLUB_ARTICLE table. I need to create an HQL query that returns a list of articles for a particlular club. So I need to supply the club id and get back a list of Article objects that belong to it. For some reason, I just can't work out how to do this. Any help would be very much appriciated! Thanks.

    Read the article

  • Grafting Scala 2.8 into a Netbeans NBAndroid Project...What steps am I missing?

    - by Michael Kohout
    Hi All; Due to Apple's recent T+C hijinks, I've become interested in developing for Android. Anyways, I'm trying to get a mixed-language Android 2.1 project going in Netbeans 6.8 (with the NBAndroid 0.10 plugin). The two languages being Java and Scala(2.8 head build). To give you a basic idea of what the app does right now, it's just a simple "Hello World" app. To get this to build, I've modified the projects's build.xml file: -- -injars ${scala-library}(!META-INF/MANIFEST.MF,!library.properties) -outjars "${build.classes.dir}/classes.min.jar" -libraryjars "${file.reference.android.jar}" -dontwarn -dontoptimize -dontobfuscate -keep public class * extends android.app.Activity -keep public class scala.xml.include.sax.Main** I've gotten the project so that it'll build, but it errors on startup in my Android Emulator(inside the emulator Android tells me my application has stopped unexpectedly). So my questions are: Does anyone see what I may be doing wrong? And is there any way to get access to the logs that the emulator must create? thanks Mike Kohout

    Read the article

  • Issue Calculating from Rows and Columns(Summing two columns with the third of a different row)

    - by vstsdev
    With reference to my previous question Adding columns resulting from GROUP BY clause SELECT AcctId,Date, Sum(CASE WHEN DC = 'C' THEN TrnAmt ELSE 0 END) AS C, Sum(CASE WHEN DC = 'D' THEN TrnAmt ELSE 0 END) AS D FROM Table1 where AcctId = '51' GROUP BY AcctId,Date ORDER BY AcctId,Date I executed the above query and got my desired result.. AcctId Date C D 51 2012-12-04 15000 0 51 2012-12-05 150000 160596 51 2012-12-06 600 0 now I have a another operation to do on the same query i.e. I need the result to be like this AcctId Date Result 51 2012-12-04 (15000-0)-> 15000 51 2012-12-05 (150000-160596) + (15000->The first value) 4404 51 2012-12-06 600-0 +(4404 ->The calculated 2nd value) 5004 Is it possible with the same query??.

    Read the article

  • Should I put my output files in source control?

    - by sebastiaan
    I've been asked to put every single file in my project under source control, including the database file (not the schema, the complete file). This seems wrong to me, but I can't explain it. Every resource I find about source control tells me not to put generated output files in a source control system. And I understand, it's not "source" files. However, I've been presented with the following reasoning: Who cares? We have plenty of bandwidth. I don't mind having to resolve a conflict each time I get the latest revision, it's just one click It's so much more convenient than having to think about good ignore files Also, if I have to add an external DLL file in the bin folder now, I can't forget to put it in source control, as the bin folder is not being ignored now. The simple solution for the last bullet-point is to add the file in a libraries folder and reference it from the project. Please explain if and why putting generated output files under source control is wrong.

    Read the article

  • Avoiding EXC_BAD_ACCESS when using the delegate pattern

    - by Kenny Winker
    A have a view controller, and it creates a "downloader" object, which has a reference to the view controller (as a delegate). The downloader calls back the view controller if it successfully downloads the item. This works fine as long as you stay on the view, but if you navigate away before the download is complete I get EXC_BAD_ACCESS. I understand why this is happening, but is there any way to check if an object is still allocated? I tried to test using delegate != nil, and [delegate respondsToSelector:], but it chokes. if (!self.delegate || ![self.delegate respondsToSelector:@selector(downloadComplete:)]) { // delegate is gone, go away quietly [self autorelease]; return; } else { // delegate is still around [self.delegate downloadComplete:result]; } I know I could, a) have the downloader objects retain the view controller b) keep an array of downloaders in the view controller, and set their delegate values to nil when I deallocate the view controller. But I wonder if there is an easier way, where I just test if the delegate address contains a valid object?

    Read the article

  • Where can I get resources for developing for Mac OS Classic?

    - by Benjamin Pollack
    I recently got bored and fired up my old Mac OS Classic emulator, and then got nostalgic for writing old-school applications for the system. So, my question: Where can I get dev tools that can still target Classic? (Ideally free, since this is just for fun, but if grabbing a used version of CodeWarrior on eBay is the best way to go, so be it.) Where can I get at least reference materials so I don't have to guess-and-check my way around Carbon/the System Toolbox? Are there any forums still running that would be open to answering old-school Mac questions for when I get stuck? This is purely for fun, so don't worry about how impractical this is. I know.

    Read the article

  • Monitoring process-level performance counters in Windows Perfmon

    - by Dennis Kashkin
    I am sure everybody has bumped into this. As you scale a web server that uses multiple application pools, it's valuable to collect performance counters for each application pool 24x7. The only problem is - Perfmon links counters to application pools by process ID, so whenever an application pool recycles you have to remove the counters for the old process ID and add them for the new process ID. Since application pools recycle quite often (whenever you release a new version or patch the server), it's a major pain. I wonder if anybody has found a workaround for this? Perhaps a programmatic way to update Perfmon settings whenever an application pool starts up or some way to reference application pools by name instead of process ID? I'll appreciate any hints on this!

    Read the article

  • Environment variables get lost between MSBuild projects

    - by DotNetter
    Hi, I have a .NET solution containing following projects: web application (WAP) web deployment (WDP, .wdproj) wix setup (WIX, .wixproj) In the WDP I've used a custom MSBuild task (SetEnvVar) to set some env. variables for further use in the build process. After setting them I can use them without prob. in the WDP but in the WIX they are empty/undefined. The strange thing is that when I reference those env. vars in the WIX files (by using properties in .wxs or preproc vars in .wxi) I get the values as expected. Do you have any idea why the env. vars get lost/are undefined in .wixproj? By the way the (solution) build process is triggered from inside VS 2010.

    Read the article

< Previous Page | 281 282 283 284 285 286 287 288 289 290 291 292  | Next Page >