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Articles indexed in April 2010

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  • Returning S_FALSE from a C# COM dll

    - by AntonyW
    I have a method defined in IDL as follows : interface IMyFunc : IDispatch { [id(1), helpstring("method GetNextFunction")] HRESULT GetNextFunction([in,out] long* lPos, [out, retval] BSTR* bstrName); } Using C++ I always implemented this as follows : STDMETHODIMP CMyFunc::GetNextFunction(long *nID, long *lPos, BSTR *bstrName) { if ( function to return ) { // setup return values; return S_OK; } else { // just exit return S_FALSE; } } Now I am implementing this in C# and have used tlbimp on the type library and ended up with : public string GetNextFunction(ref int nID, ref int lPos) I understand that this is because [out, retval] is used as the return type instead of the HRESULT as in C++. Is there a simple way to return the S_OK / S_FALSE values without changing the method definition? The only way I can see is that I have to use ildasm / ilasm to add preservesig so I end up with something like this : public int GetNextFunction(ref int nID, ref int lPos, ref string bstrName) I was wondering if there was some other way without doing the il compilation step.

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  • Problem with C function of type char pointer, can someone explain?

    - by JJ
    Find the errors from following C function : char* f(int i) { int i; char buffer[20]; switch ( i ) { 1: strcpy( buffer, "string1"); 2: strcpy( buffer, "string2"); 3: strcpy( buffer, "string3"); default: strcpy(buffer, "defaultstring"); } return buffer; } this is c funtion not C++, I think it has to do with type conversion my compiler give warning that declaration of int i shadows a parameter.

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  • Returning superclass of return type from remote EJB method

    - by fish
    Let's say I have remote interface A: @Remote public interface A { public Response doSomething(); } And implementation: @Stateless public class B implements A { public BeeResponse doSomething() {...} } Where: BeeResponse extends Response. Response is located in the EJB-API jar and BeeResponse is in the implementation jar. Response and BeeResponse have different serialVersionUID. My assumption is that the unmarshalling of the response from B will fail, am I correct?

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  • What is your prefered way to return XML from an ActionMethod in Asp.net MVC?

    - by serbrech
    I am displaying charts that load the data asynchronously because the searches are the work to fetch the data is quite heavy. The data has to be return as XML to make the chart library happy. My ActionMethods return a ContentResult with the type set as text/xml. I build my Xml using Linq to XML and call ToString. This works fine but it's not ideal to test. I have another idea to achieve this which would be to return a view that builds my XML using the XSLT View engine. I am curious and I always try to do the things "the right way". So how are you guys handling such scenarios? Do you implement a different ViewEngine (like xslt) to build your XML or do you Build your XML inside your controller (Or the service that serves your controller)?

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  • OS X, Mercurial and MediaTemple problem

    - by bschaeffer
    I've installed Mercurial per MT's knowledge base file here. Working with it server side using ssh from my Mac works fine. I can initialize repositories and the like, but pulling from the server or pushing from my Mac produces an error I don't understand. Here's what I get when call hg push from my local installation (hash marks represent my server number): remote: Traceback (most recent call last): remote: File "/home/#####/users/.home/data/mercurial-1.5/hg", line 27, in ? remote: mercurial.dispatch.run() remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/dispatch.py", line 16, in run remote: sys.exit(dispatch(sys.argv[1:])) remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/dispatch.py", line 21, in dispatch remote: u = _ui.ui() remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/ui.py", line 38, in __init__ remote: for f in util.rcpath(): remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/util.py", line 1200, in rcpath remote: _rcpath = os_rcpath() remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/util.py", line 1174, in os_rcpath remote: path = system_rcpath() remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/posix.py", line 41, in system_rcpath remote: path.extend(rcfiles(os.path.dirname(sys.argv[0]) + remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/posix.py", line 30, in rcfiles remote: rcs.extend([os.path.join(rcdir, f) remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/demandimport.py", line 75, in __getattribute__ remote: self._load() remote: File "/nfs/c05/h01/mnt/#####/data/mercurial-1.5/mercurial/demandimport.py", line 47, in _load remote: mod = _origimport(head, globals, locals) remote: ImportError: No module named osutil abort: no suitable response from remote hg! Mercurial on my Mac is configured as follows [ui] username = John Smith editor = te -w remotecmd = ~/data/mercurial-1.5/hg My local single repo is configured as follows (hash marks represent my server number): [paths] default = ssh://mysite.com@s#####.gridserver.com/domains/mysite.com/html Mercurial on the server is configured with a just a username: [ui] username = John Smith The server .bash_profile is configured as follows (per the installation guide): # Aliases alias ls-a='ls -a -l' # Added this as suggested by the MediaTemple guide export PYTHONPATH=${HOME}/lib/python:$PYTHONPATH export PATH=${HOME}/bin:$PATH I understand this probably isn't a MediaTemple problem, but more likely an installation problem. I would really appreciate any assitance on this problem. Thanks in advance!

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  • PHP: Mapped Network Drives

    - by Abs
    Hello all, I have mapped a network drive to a computer in my home network. Now I am trying to access it via PHP - I did this quick test: echo opendir('Z:\\'); This gives me: Warning: opendir(Z:\) [function.opendir]: failed to open dir: No error in C:\wamp\www\webs\tester-function.php on line 3 What have I done wrong here? I don't want my users typing in the UNC path so is there a way to get the UNC path for them and maybe that will work when I try to access it? This is possible in Microsoft languages but I am not sure how to get PHP to do this - maybe using a cmd.exe command? Please note, the mapped drive does exist as I can see it and I can access it. It also does not appear to be a permissions problem as I am assuming it would of complained about this IF it could access that drive...right? Thanks all for any help

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  • How to delete the first child of an element but referenced by $(this) in Jquery?

    - by Raja
    The scenario is I have two Divs one is where I select items (divResults) and it goes to the next div (divSelectedContacts). When I select it I place a tick mark next to it. What I want to do is when I select it again I want to remove the tick mark and also remove the element from divSelectedContacts. Here is the code. $("#divResults li").click(function() { if ($(this).find('span').size() == 1) { var copyElement = $(this).children().clone(); $(this).children().prepend("<span class='ui-icon ui-icon-check checked' style='float:left'></span>"); $("#divSelectedContacts").append(copyElement); } else { var deleteElement = $(this).find('span'); //here is the problem how to find the first span and delete it $(deleteElement).remove(); var copyElement = $(this).children().clone();//get the child element $("#divSelectedContacts").find(copyElement).remove(); //remove that element by finding it } }); I don't know how to select the first span in a li using $(this). Any help is much appreciated.

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  • Does WCF make the consumption of Restful web services trivial?

    - by Steve Weet
    I have an ASP.net application that currently consumes SOAP web services. This platform is targeted at .net 2.0 and I use Visual Studio Professional 2005 to maintain it. I now have a requirement to consume a number of restful web service within the same application. Is the consumption of Restful web services with WCF so trivial, compared to using HttpClient that it is worth the cost and time of upgrading to Visual Studio 2008 and .Net 3.5 framework

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  • Back Orders for ERP: data model references ?

    - by Patrick Honorez
    I have built an ERP using Sql Server as a back-end. These are the different types of Client documents (there are also Supplier Docs): Order -- impact: BO Delivery Note (also used for returns, with negative quantity) --impact: BO, Stock Invoice --impact: accounting only Credit Note --impact: accounting, BO I use a complex system of self joins (at detail level) to find out the quantities in each OrderDetail that still have a backorder (BO). It'd like to simplify this using a [group] field that could be used through all detail line related to an original order. There are many difficult things to trace: a Return of a product may be due to a defect and thus increase the BO, or it can be just a return, joined with a Credit Note, and then has no impact on BO. My question is: do you know of any real good reference (book, web) for this matter ?

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  • Tieing Fullcalendar into my database

    - by Ed
    I am trying to figure out this fullcalendar and how to get events from database. I am using asp .net I am using a webservice that has something like this. I am just trying to put a test record first then I will tie it to the database once i get it working. Any help would be greatly appreciated! Thanks alot! Just trying to figure out how to tie my webservice. So my webservice goes like so. _ _ _ _ Public Class WebService1 Inherits System.Web.Services.WebService <WebMethod()> _ <ScriptMethod(ResponseFormat:=ResponseFormat.Json, UseHttpGet:=True)> _ Public Function Getcalendar() As String Dim sb As New StringBuilder Dim sw As New IO.StringWriter(sb) Dim strOut As String = String.Empty Using writer As New JsonTextWriter(sw) writer.WriteStartObject() writer.WritePropertyName("id") writer.WriteValue("999") writer.WritePropertyName("title") writer.WriteValue("my test") writer.WritePropertyName("allday") writer.WriteValue("false") writer.WritePropertyName("start") writer.WriteValue("2010-04-14T11:00:00") writer.WritePropertyName("end") writer.WriteValue("2010-04-14T13:00:00") writer.WriteEndObject() strOut = sw.ToString End Using Return strOut End Function End Class And my html goes like this <script type="text/javascript"> $(document).ready(function() { $('#calendar').fullCalendar({ header: { left: 'prev,next today', center: 'title', right: 'month,agendaWeek,agendaDay' }, editable: true, events: RVCSC.WebService1.Getcalendar() }); });

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  • Hide Outlook envelope in system tray

    - by thorseye
    When I get a new email in Outlook 2003 I get two notifications; one is the envelope in the system tray, and one is the fading noticiation message in the lower right corner. If I click the notification message, the envelope will never disappear, even if all emails are read. If Outlook is restarted the envelope disappears. If I right click the envelope and choose "Hide envelope" I have to go into the settings and set the Show envelope option to true again to see the envelope. I want the envelope, but only when there are any unread emails in my inbox. How do I fix this?

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  • How to tell Linux to explicitly swap out main memory of suspended process?

    - by Vi
    I run a memory-hungry process (mkcromfs) which consumes more memory than I have physical memory on my latop, so it is paging and swappin and thrashing all the time and loadavg is about 2 (compcache is already in use with usual swap partition as well), but slowly moving forward (Although I afraid it will finally try to allocate 2GB and crash draining 2 days of thrashing). When I want to use the laptop for something else, I stop the process, start X server, firefox and other programs. The problem is that when I start Firefox the loadavg jumps to 10 and the system becomes almost unresponsive at all (long time to turn on/off caps lock, slow mouse cursor position updates, slow switching from X server to Linux console, slow login). The stopped mkcromfs still holds a lot of memory (464.8 MiB and slowly falling) and moves it to swap only when more memory is needed for some other program, which results in a great slowdown. How to tell the Linux to swap out this process entirely (e.g. I'm not intending to resume it in short term), possibly waking from swap other data? Also it will be useful to be able to specify the exact swap device to swap the given process out.

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  • Jquery getJSON populate select menu question...

    - by Scott
    I am populating a select menu with getJSON. I am wondering if there's a way that I can use jQuery's .each function to bring in these values? Surely there must be an easier way to accomplish this...maybe? PHP file: <?php $queryMonth = "SELECT monthID, month FROM months"; $result = $db->query($queryMonth); while($rowMonth = $db->fetch_assoc($result)) : $data[] = $rowMonth; endwhile; echo json_encode($data); ?> The jQuery: $.getJSON('selectMenus.php', function(data){ $("select.month").append("<option value=" + data[0].monthID + ">" + data[0].month + "</option>"); $("select.month").append("<option value=" + data[1].monthID + ">" + data[1].month + "</option>"); $("select.month").append("<option value=" + data[2].monthID + ">" + data[2].month + "</option>"); $("select.month").append("<option value=" + data[3].monthID + ">" + data[3].month + "</option>"); $("select.month").append("<option value=" + data[4].monthID + ">" + data[4].month + "</option>"); $("select.month").append("<option value=" + data[5].monthID + ">" + data[5].month + "</option>"); $("select.month").append("<option value=" + data[6].monthID + ">" + data[6].month + "</option>"); $("select.month").append("<option value=" + data[7].monthID + ">" + data[7].month + "</option>"); $("select.month").append("<option value=" + data[8].monthID + ">" + data[8].month + "</option>"); $("select.month").append("<option value=" + data[9].monthID + ">" + data[9].month + "</option>"); $("select.month").append("<option value=" + data[10].monthID + ">" + data[10].month + "</option>"); $("select.month").append("<option value=" + data[11].monthID + ">" + data[11].month + "</option>"); }); my json output looks like this: [{"monthID":"1","month":"January"},{"monthID":"2","month":"February"},{"monthID":"3","month":"March"},{"monthID":"4","month":"April"},{"monthID":"5","month":"May"},{"monthID":"6","month":"June"},{"monthID":"7","month":"July"},{"monthID":"8","month":"August"},{"monthID":"9","month":"Septemeber"},{"monthID":"10","month":"October"},{"monthID":"11","month":"November"},{"monthID":"12","month":"December"}]

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  • Changing the output of Getdate

    - by pauloya
    Is it possible to deceive SQL Server to return a different date on GetDate() without actually changing the machine date? This would be great, since we have a database with old data and I'm trying to test some queries that use getdate(). I can change my machine date but that brings some other problems with other applications... Any tips? Thanks!

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  • JQuery: Read each line of an element

    - by Sarfraz
    Hello, Suppose I have this html markup: <div id="wrapper"> $(function(){ // hide all links except for the first $('ul.child:not(:first)').hide(); $("a.slide:first").css("background-color","#FF9900"); $('ul.parent a.slide').click(function(){ $('ul.parent a.slide').css("background-color","#3399FF"); $('ul.parent a.slide').mouseout(function(){ $(this).css("background-color","#3399FF"); }); $('ul.parent a.slide').mouseover(function(){ $(this).css("background-color","#66CC66"); }); }); }); </div> What is the easiest way to read each line of code present in the div. How do I extract each line of code from that div or loop over each line styling in any way I want. Thanks

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  • Breadcrumbs to show Navigation of user

    - by user310916
    My Folder structure in sharepoint is flat one. in the same level I have pages Home, Main Articles, Articles by Category, Article Content aspx pages. A user can navigate like Home Main Articles Articles by Category Article or Home Main Articles Article or Home Article. I want user to see the breadcrumbs as shown above. I created a web.sitemap xml file in my site definition as follows <siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" > <siteMapNode url="Landing.aspx" title="Tips from the Top" description="The Tips from the Top Home Page"> <siteMapNode url="MainArticles.aspx" title="All Articles" description="All Articles are available here"> <siteMapNode url="ArticlesbyCategory.aspx" title="Articles by Category" description="Articles on selected category"> <siteMapNode url="CurrentArticleContent.aspx" title="Article Content" description="Article of Interest" /> </siteMapNode> <siteMapNode url="CurrentArticleContent.aspx" title="Article Content" description="Article of Interest" /> </siteMapNode> <siteMapNode url="MainTips.aspx" title="All Business Tips" description="All Business Tips are available here"> <siteMapNode url="TipsbyCategory.aspx" title="Tips by Category" description="Tips on selected category" /> </siteMapNode> </siteMapNode> </siteMap> and also added a web.config file as <siteMap defaultProvider="MapProvider"> <providers> <add name="MapProvider" type="xyz.abc.SiteDefinition.MapProvider,xyz.abc.SiteDefinition" siteMapFile = "Web.Sitemap" /> </providers> </siteMap>

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  • Windows batch file: is there a way to add an "and"?

    - by Beska
    The short version: is there a way to to write an "and" clause in a batch file? The slightly longer version: I've inherited a Visual Studio project that creates a dll and then copies that dll to another location. As a post build step, VS runs the following script. if not '$(ConfigurationName)' == 'DebugNoSvc' goto end xcopy /Y $(TargetDir)*.config $(ProjectDir)..\myService\bin\Debug xcopy /Y $(TargetDir)*.config $(ProjectDir)..\myService\bin\DebugNoSvc :end It looks like there's a problem when the project is compiled as Debug, since it doesn't do the copy (I'm guessing that at some point the middle section got updated, but the if clause didn't.) Is there an easy way to an "and" clause in batch?

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  • Datatemplates while using theme does not work - WPF

    - by bobjink
    I am using the theme DarkExpression from WPF Futures. It does not seem to work well with datatemplates. Scenario 1: Here is how it looks like without datatemplates: Pic 1 Code: <ListView Name="playlistListView" ItemsSource="{Binding PlaylistList}" Margin="0" SelectionChanged="DatabindedPlaylistListView_SelectionChanged" Background="{x:Null}" Opacity="0.98"> <ListView.View> <GridView> <GridViewColumn Width="Auto" DisplayMemberBinding="{Binding Name}"> <GridViewColumnHeader HorizontalContentAlignment="Left" Content="Playlist" Tag="Playlist"/> </GridViewColumn> </GridView> </ListView.View> </ListView> Scenario 2: Here is how it looks like trying to use datatemplates while using the theme: Pic 2 Code: <ListView Name="playlistListView" ItemsSource="{Binding PlaylistList}" Margin="0" SelectionChanged="DatabindedPlaylistListView_SelectionChanged" Background="{x:Null}" Opacity="0.98"> <ListView.ItemTemplate> <DataTemplate> <Grid> <UserControls:SongDataTemplate Margin="4" /> </Grid> </DataTemplate> </ListView.ItemTemplate> </ListView> Scenario 3: Here is how it looks like trying to use datatemplates while overriding the theme: Pic3 Code: <UserControl.Resources> <Style x:Key="ListViewItemStretch" TargetType="{x:Type ListViewItem}"> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> <Setter Property="Background" Value="Transparent" /> </Style> </UserControl.Resources> <Grid x:Name="LayoutRoot"> <ListView Name="playlistListView" ItemContainerStyle="{StaticResource ListViewItemStretch}" ItemsSource="{Binding PlaylistList}" Margin="0" SelectionChanged="DatabindedPlaylistListView_SelectionChanged" Background="{x:Null}" Opacity="0.98"> <ListView.ItemTemplate> <DataTemplate> <Grid> <UserControls:SongDataTemplate Margin="4" /> </Grid> </DataTemplate> </ListView.ItemTemplate> </ListView> I want to keep the theme style but I also want to use datatemplates to define how a playlist should look like. Any suggestions? Note: In scenario 2 and 3 I had to remove <ListView.View> <GridView> <GridViewColumn Width="Auto" DisplayMemberBinding="{Binding Name}"> <GridViewColumnHeader HorizontalContentAlignment="Left" Content="Playlist" Tag="Playlist"/> </GridViewColumn> </GridView> </ListView.View> Before the datatemplate would be used.

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  • Patterns: Local Singleton vs. Global Singleton?

    - by Mike Rosenblum
    There is a pattern that I use from time to time, but I'm not quite sure what it is called. I was hoping that the SO community could help me out. The pattern is pretty simple, and consists of two parts: A singleton factory, which creates objects based on the arguments passed to the factory method. Objects created by the factory. So far this is just a standard "singleton" pattern or "factory pattern". The issue that I'm asking about, however, is that the singleton factory in this case maintains a set of references to every object that it ever creates, held within a dictionary. These references can sometimes be strong references and sometimes weak references, but it can always reference any object that it has ever created. When receiving a request for a "new" object, the factory first searches the dictionary to see if an object with the required arguments already exits. If it does, it returns that object, if not, it returns a new object and also stores a reference to the new object within the dictionary. This pattern prevents having duplicative objects representing the same underlying "thing". This is useful where the created objects are relatively expensive. It can also be useful where these objects perform event handling or messaging - having one object per item being represented can prevent multiple messages/events for a single underlying source. There are probably other reasons to use this pattern, but this is where I've found this useful. My question is: what to call this? In a sense, each object is a singleton, at least with respect to the data it contains. Each is unique. But there are multiple instances of this class, however, so it's not at all a true singleton. In my own personal terminology, I tend to call the factory method a "global singleton". I then call the created objects "local singletons". I sometimes also say that the created objects have "reference equality", meaning that if two variables reference the same data (the same underlying item) then the reference they each hold must be to the same exact object, hence "reference equality". But these are my own invented terms, and I am not sure that they are good ones. Is there standard terminology for this concept? And if not, could some naming suggestions be made? Thanks in advance...

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  • ASP.NET panel DefaultButton event fires only once?

    - by Ahmed
    For a panel with one textbox and one button which is its default button, the DefaultButton event fires only once as editing textbox details again and pressing enter, event doesn't fire. <asp:Panel runat="server" ID="pnlNewFolderDetails" DefaultButton="btnAddFolder"> <asp:Label runat="server" ID="lblFolderHeader" Text="New Folder Name" CssClass="label" /> <asp:TextBox runat="server" ID="txtFolderName" ToolTip="Folder Name" /> <asp:Button runat="server" ID="btnAddFolder" OnClick="btnAddFolder_Click" Text="Add" /> Any suggestions?

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  • SPAZ to connect to Laconica

    - by Linley
    I installed a local version of Laconica microblogging in my env. Then I downlowaded SPAZ (an AIR client) to try and talk to the Laconica app. I get an authenitcation error. I have put in the appropriate credentials - I think :) But I think that I have to alter the API and base URL for connecting. Ayone have any thoughts on how to make these two apps talk ? Thanks in advance, Linley

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