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  • Linq to Datarow, Select multiple columns as distinct?

    - by Beta033
    basically i'm trying to reproduce the following mssql query as LINQ SELECT DISTINCT [TABLENAME], [COLUMNNAME] FROM [DATATABLE] the closest i've got is Dim query = (From row As DataRow In ds.Tables("DATATABLE").Rows _ Select row("COLUMNNAME") ,row("TABLENAME").Distinct when i do the above i get the error Range variable name can be inferred only from a simple or qualified name with no arguments. i was sort of expecting it to return a collection that i could then iterate through and perform actions for each entry. maybe a datarow collection? As a complete LINQ newb, i'm not sure what i'm missing. i've tried variations on Select new with { row("COLUMNNAME") ,row("TABLENAME")} and get: Anonymous type member name can be inferred only from a simple or qualified name with no arguments. Also, does anyone know of any good books/resources to get fluent?

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  • Entity Framework - An object with the same key already exists in the ObjectStateManager

    - by Justin
    Hey all, I'm trying to update a detached entity in .NET 4 EF: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Save(Developer developer) { developer.UpdateDate = DateTime.Now; if (developer.DeveloperID == 0) {//inserting new developer. DataContext.DeveloperData.Insert(developer); } else {//attaching existing developer. DataContext.DeveloperData.Attach(developer); } //save changes. DataContext.SaveChanges(); //redirect to developer list. return RedirectToAction("Index"); } public static void Attach(Developer developer) { var d = new Developer { DeveloperID = developer.DeveloperID }; db.Developers.Attach(d); db.Developers.ApplyCurrentValues(developer); } However, this gives the following error: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key. Anyone know what I'm missing? Thanks, Justin

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  • WPF Toolkit DataGrid SelectionChanged Getting Cell Value

    - by Dan Bater
    Hi, Please help me, Im trying to get the value of Cell[0] from the selected row in a SelectionChangedEvent. I am only managing to get lots of different Microsoft.Windows.Controls and am hoping im missing something daft. Hoping I can get some help from here... private void datagrid_SelectionChanged(object sender, SelectionChangedEventArgs e) { Microsoft.Windows.Controls.DataGrid _DataGrid = sender as Microsoft.Windows.Controls.DataGrid; } I was hoping it would be something like... _DataGrid.SelectedCells[0].Value; However .Value isn't an option.... Many many thanks this has been driving me mad! Dan

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  • Why is HttpClient's GetStringAsync is unbelivable slow?

    - by Jason94
    I have a Windows Phone 8 project where I've taken to use the PCL (Portable Class Library) project too since I'm going to build a Win8 app to. However, while calling my api (in Azure) my HttpClient's GetStringAsync is so slow. I threw in a couple of debugs with datetime and GetStringAsync took like 14 seconds! And sometimes it takes longer. What I'm doing is retrieving simple JSON from my Azure API site. My Android client has no problem with getting that same data in a split second... so is there something I'm missing? The setup is pretty straight forward: HttpClient client = new HttpClient(); client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); client.DefaultRequestHeaders.Add("X-Token", "something"); string responseJSON = await client.GetStringAsync("url"); I've places the debug times right before and after the await there, in between it is 14 seconds! Does someone know why?

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  • JAXB 'generateElementProperty' tag not having any effect.

    - by Sionide21
    I am trying to remove the JAXBElement wrapper from a field that was a substitution group in my schema. I have tried both <jaxb:globalBindings generateElementProperty="false"/> and <jaxb:globalBindings> <xjc:generateElementProperty>false</xjc:generateElementProperty> </jaxb:globalBindings> But in both cases it seems to be completely ignored. Is there a problem trying to use this for substitution groups or am I missing something?

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  • TVirtualStringTree compatibility between Delphi 7 and Delphi 2010 - 'Parameter lists differ'

    - by Brian Frost
    Hi, I've made a form containing a TVirtualStringTree that works in Delphi 7 and Delphi 2010. I notice that as I move between the two platforms I get the message '...parameter list differ..' on the tree events and that the string type is changing bewteen TWideString (D7) and string (D2010). The only trick I've found to work to suppress this error is to use compiler directives as follows: {$IFDEF TargetDelphi7} procedure VirtualStringTree1GetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); {$ELSE} procedure VirtualStringTree1GetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: string); {$ENDIF} and to repeat this where the events are implemented. Am I missing a simple solution? Thanks.

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  • The type or namespace name 'Syndication' does not exist in the namespace 'System.ServiceModel' After

    - by schmoopy
    Hello, i get the following error when trying to compile my asp.net site after updating the project from vs2008 to vs2010 The type or namespace name 'Syndication' does not exist in the namespace 'System.ServiceModel' (are you missing an assembly reference?) I have the asp.net site targeting 3.5 framework (as it did in vs2008) I also added a reference to System.ServiceModel.Web I also have these using statements at the top of my class: using System.ServiceModel; using System.ServiceModel.Description; using System.ServiceModel.Syndication; using System.ServiceModel.Web; The last 2 complain with the error above, commenting them out produces errors (cannot find WebGet, etc.) like it flipflops. Anyone have any ideas?

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  • Getting Exception thrown and not caught error on jquery ui tabs in ie8

    - by Jason
    I am getting the following error (pointing to jquery-1.4.2.js): Message: Exception thrown and not caught Line: 2904 Char: 2 Code: 0 With the following: IE8 jquery 1.4.2 jquery ui 1.8.1 When I do the following: $("#theTabs").tabs(); On the same page I also have two instances of the jquery ui dialog and one instance of the jquery ui accordion. Am I missing something? This does not happen in FF on Windows (nor in Safari or FF on OS X) I use the same code elsewhere for tabs and they work just fine.

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  • ASP.NET MVC: shortcut for Response.Write and String.Format

    - by pcampbell
    I've found a pattern in my Views like this: <% if (someCondition) { Response.Write(string.Format("Hello {0}, Visitor {1} on {2}.", userName, someCounter, someDate)); } else { Response.Write(string.Format("Foo is {0}.", bar)); } %> The question here is around DRY and Response.Write(string.Format()). Are there better, or more concise ways to . Consider that HTML encoding would be a nice feature to include, perhaps as a boolean to a method call of some kind (extension method on Html?. Is there an obvious extension method that I'm missing? Do you have an extension method that you rely on to achieve this functionality?

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  • DomainService method not compiling; claims "Return types must be an entity ..."

    - by Duncan Bayne
    I have a WCF RIA Domain Service that contains a method I'd like to invoke when the user clicks a button: [Invoke] public MyEntity PerformAnalysis(int someId) { return new MyEntity(); } However, when I try to compile I'm given the following error: Operation named 'PerformAnalysis' does not conform to the required signature. Return types must be an entity, collection of entities, or one of the predefined serializable types. The thing is, as far as I can tell, MyEntity is an entity: [Serializable] public class MyEntity: EntityObject, IMyEntity { [Key] [DataMember] [Editable(false)] public int DummyKey { get; set; } [DataMember] [Editable(false)] public IEnumerable<SomeOtherEntity> Children { get; set; } } I figure I'm missing something simple here. Could someone please tell me how I can create an invokable method that returns a single MyEntity object?

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  • WPF 3D - converting from Point2D to Point3D and back again

    - by DanM
    I'm new to WPF 3D, so I may just be missing something obvious, but how would I go about converting from a 2D coordinate to a 3D coordinate and back again? I'd like the 2D coordinate to be the location measured from the upper-left corner of Viewport3D and the 3D coordinate to be the location relative to the origin (0, 0, 0) of the 3D world. The conversion functions should have these signatures: public Point3D Point2DAndWorldZToPoint3D(Point2D point2D, double worldZ) // usually I want to know where a 2D point will be on the ground plane // so worldZ will usually be zero (but not always) public Point2D Point3DToPoint2D(Point3D point3D) I found this related question, but it only addresses conversion from 3D to 2D (not the reverse), and I'm not sure if the answers are up-to-date. Note, I'm currently using .NET 3.5, but if there are improvements in .NET 4.0 that would help me, please let me know.

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  • How to make WPF DataGrid Column Header transparent

    - by joerage
    Hi, I am trying to make the column header of my WPF Datagrid to be transparent. I am able to set it to a color without problem, but I can't have it transparent. Here is what I tried: <Style x:Key="DatagridColumnHeaderStyle" TargetType="{x:Type tk:DataGridColumnHeader}"> <Setter Property="Background" Value="Transparent" /> <Setter Property="Foreground" Value="#C2C4C6" /> </Style> <Style x:Key="DashboardGridStyle" TargetType="{x:Type tk:DataGrid}"> <Setter Property="ColumnHeaderStyle" Value="{StaticResource DatagridColumnHeaderStyle}" /> <Setter Property="Background" Value="Transparent" /> <Setter Property="RowBackground" Value="Transparent" /> </Style> <tk:DataGrid Style="{StaticResource DashboardGridStyle}" > ... </tk:DataGrid> With this code, it seems to take the default brush. What am I missing?

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  • Callback Error when using Sharepoint PeopleEditor

    - by BeraCim
    Hi all: I'm getting a "There was an error in the callback" error when clicking on the check names button of the PeopleEditor in Sharepoint. I didn't do anything fancy. All I did was just to create a PeopleEditor in the C# code and add it to a Panel, and let the aspx page renders it. The address book (the button next to the check names button) works. But everytime when I enter something in the PeopleEditor and click the check names button, I get that error. I had a look at my aspx page, and I'm getting the feeling that I'm missing some sort of Javascript library. I have JQuery library included in my aspx page, but thats about it. Does anyone know what might be wrong? [UPDATE] The PeopleEditor is appended to a panel, which is displayed when the value of a dropdown list changes. Thanks.

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  • view .doc, .docx, .rtf, .ppt file in iphone using Webview

    - by Ekra
    Hi friends I want to view .doc, .docx, .rtf, .ppt file in iphone. But I guess something is going wrong at my side and its not working for the above formats but my code is working fine for .txt and .pdf files. I have the read the document regarding Webview it states it supports viewing of the above document. below is my snippet for .doc [webView loadData:requestData MIMEType:@"application/msword" textEncodingName:@"UTF-8" baseURL:nil]; for .ppt I am using MIME type as "application/vnd.ms-powerpoint" Note: If I am making MIME type as "text/html" for .doc then it displays some garbage data So I think there is something missing in MIME type from my side. Any help is highly appreciated. Waiting for your reply.

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  • Error: "The website declined to show this webpage" with AjaxControlToolkit 3.5

    - by Vijay
    What I have? I have a ASP.NET page deployed in layouts folder of 12 hive in SharePoint. This page makes use of Accordion control in AjaxControlToolkit.dll V3.5.40412.2. I have placed the page code behind class assembly and AjaxControlToolkit.dll in Virtual Directory bin folder. What I want? I want to load this page when a link clicked from a web part for users of "Visitors" site group when the DLLs are placed in virtual directory bin folder. What problem am I facing? The page loads properly for administrator. But, for "Visitors", it shows "The website declined to show this webpage" error message. In these scenarios the page works fine for "Visitors": If I place both the assemblies in GAC If I give Everyone read permission to AjaxControlToolkit.dll (in bin) Am I missing something here?

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  • How do I delete multiple rows in Entity Framework (without foreach)

    - by Jon Galloway
    I'm deleting several items from a table using Entity Framework. There isn't a foreign key / parent object so I can't handle this with OnDeleteCascade. Right now I'm doing this: var widgets = context.Widgets .Where(w => w.WidgetId == widgetId); foreach (Widget widget in widgets) { context.Widgets.DeleteObject(widget); } context.SaveChanges(); It works but the foreach bugs me. I'm using EF4 but I don't want to execute SQL. I just want to make sure I'm not missing anything - this is as good as it gets, right? I can abstract it with an extension method or helper, but somewhere we're still going to be doing a foreach, right?

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  • ApplyCurrentValues in EF 4

    - by ali62b
    I just was playing with EF 4 in VS 2010 RC and just found that ApplyCurrentValues dont work when the Property is of type bool and the newly value is false !!!??? and it works when the newly value is true . I dont know if this is a bug or I'm missing something but I just work with a very ugly work around : public void UpdateProduct(Product updatedProduct) { using (model) { model.Products.Attach(new Product { ProductID = updatedProduct.ProductID }); model.Products.ApplyCurrentValues(updatedProduct); Product originalProduct = model.Products.Single(p => p.ProductID == updatedProduct.ProductID); originalProduct.Discontinued = updatedProduct.Discontinued; model.SaveChanges(); } } any idea or better work around?

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  • UIPopoverController w/ UINavigationController Subview contentSizeForViewInPopover doesnt work on Par

    - by Abbacore
    I have a UIPopoverController with a subclass UINavigationController. Both the parent and child views are UITableviews. When i call parent view originally with contentSizeForViewInPopover = (320,480) it works great. When i click into the child view i resize the popover to contentSizeForViewInPopover = (320,780) When return back to the parent view i cannot get the popover to resize back to contentSizeForViewInPopover = (320,480). the popover stays at the (320,780) size. Been trying everything but just missing something. Anyone know how resize the view with UIPopoverControllers in the above scenario? Thanks in Advance!!

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  • Add Hyperlink to Cell in Excel 2007 Using Open XML SDK 2.0

    - by amurra
    I can't seem to find any documentation or code samples on how to add a hyperlink to a cell in Excel 2007 using the open xml sdk 2.0. I am using the following code, but is there a step I am missing? WorksheetPart workSheetPart = ExcelUtilities.GetWorkSheetPart(mWorkBookPart, "Program"); workSheetPart.AddHyperlinkRelationship(new Uri("http://www.google.com", UriKind.Absolute), true); workSheetPart.Worksheet.Save(); mWorkBookPart.Workbook.Save(); Then when I try and open the Excel document it says the file is corrupted because the relationship Id for the hyperlink cannot be found. How do you setup or create that relationship Id?

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  • WPF DataGrid AutoColumn generation via ICustomTypeDescriptor.

    - by panamack
    In a test project I've managed to AutoGenerate WPF DataGrid columns in the following scenario, where the data is stored in a Dictionary and binding is performed via PropertyDescriptors: public class People:List<Person>{ ... } public class Person:Dictionary<string,string>,INotifyPropertyChanged,ICustomTypeDescriptor { } The problem I'm having is in my real life project I'm using MVVM so it's *People*ViewModel which inherits ViewModelBase and hence can't inherit List<Person>. I've tried implementing IList<Person> instead with an internal List<Person> and explicitly setting the DataContext to an IList<Person> reference but that didn't work. I've seen a similar post on binding a win forms DataGridView here, so I'm wondering if the same sort of logic applies in WPF and primarily, what exactly causes the ICustomTypeDescriptor implementation to be picked up when inheriting List<T> that is missing when you simply implement IList<T> instead.

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  • Flot not displaying x axis labels correctly

    - by JVXR
    I have to display a graph with date on the X axis and Amt on the Y axis. There will be 8 lines (series) each with n months data. When I plot the graph I am sending in 6 months data for sure.( one line's data is shown below) [1251701950000, 34.50553] [1254294030000, 27.014463] [1256972350000, 26.7805] [1259567970000, 33.08871] [1262246430000, 51.987762] [1264924750000, 56.868233] However the graph shows up like this http://twitpic.com/1gbb7m The first months label is missing and last month is not aligned correctly, my flot js code is as follows $.plot($("#lgdGraphTab"),graphData, { xaxis: { mode: "time", timeformat: "%b-%y", monthNames: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"], minTickSize: [1, "month"] }, yaxis : { tickSize: 5 }, series: { lines: { show: true , shadowSize:0}, points: { show: true } }, legend:{ container: $('#legendArea'), noColumns:8 }, clickable: true, hoverable: true });

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  • ESB Toolkit.exceptionHandling Error - The application does not exist - Any ideas?

    - by Andrew Cripps
    Hello I am getting following error while attempting to run the Management Portal for ESB Toolkit 2.0: Event Type: Warning Event Source: ENTSSO Event Category: Enterprise Single Sign-On Event ID: 10536 Description: SSO AUDIT Function: GetConfigInfo (SSOProperties) Application Name: ESB Toolkit.exceptionHandling Error Code: 0xC0002A04, The application does not exist I am using SSO config store for the ESB Config. However, looking in the esb.config file, there is no section, like there is for the other esb SSO applications. Why might this section (and therefore the SSO app) be missing? How can I set it up? Thanks for any help with this Andrew

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  • Multi-line strings in objective-c localized strings file

    - by chrispix
    I have a template for an email that I've put in a localized strings file, and I'm loading the string with the NSLocalizedString macro. I'd rather not make each line its own string with a unique key. In Objective-C, I can create a human-readable multiline string like so: NSString *email = @"Hello %@,\n" "\n" "Check out %@.\n" "\n" "Sincerely,\n" "\n" "%@"; I tried to put that in a .strings file with: "email" = "Hello %@,\n" "\n" "Check out %@.\n" "\n" "Sincerely,\n" "\n" "%@"; But I get the following error at build time: CFPropertyListCreateFromXMLData(): Old-style plist parser: missing semicolon in dictionary. email-template.strings: Unexpected character " at line 1 Command /Developer/Library/Xcode/Plug-ins/CoreBuildTasks.xcplugin/Contents/Resources/copystrings failed with exit code 1 I can concatenate it all together like this: "email" = "Hello %@,\n\nCheck out %@.\n\nSincerely,\n\n%@"; But that will be a mess to maintain, particularly as the email gets longer. Is there a way to do this in a localized strings file? I've already tried adding backslashes at the end of each line, to no avail.

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  • Condition Error: Property is not declared. It may be inaccessible due to its protection level.

    - by Stoive
    I've have a workflow whose root activity is a custom NativeActivity with a public InArgument called XmlData. When I try and use this argument in a child If activity I get the following error using XmlData within the condition: 'XmlData' is not declared. It may be inaccessible due to its protection level I'm adding the argument inside CacheMetadata using the metadata.AddArgument method, and I've tried adding the child property it has using both AddChild and AddImplementationChild. If I replace my custom activity with an ActivityBuilder and use code to create a DynamicActivityProperty then the condition can be compiled successfully, so I don't see what I'm missing when I use my own code.

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  • Canon EDSDK 2.8 (Xcode 3.2.2 - Snow Leopard 10.6.3)

    - by Scott Langendyk
    I'm trying to build an application using the Canon EDSDK 2.8. I created a new Cocoa Application project in Xcode, and imported the headers and framework files. When I try to build and run (without writing any code), I get two warnings that say the frameworks are missing x86_64 architecture files. If I try and import the "EDSDK.h" header file, I end up with about 100 miscellaneous errors. I've tried changing the architecture to i386, however when I try and build and run, I get a debugger error that says "Cannot access memory at address 0x0". The odd thing is that I can get the example applications bundled with the SDK to compile and run without issues, Anyone have any ideas as to why this is happening?

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