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  • NHibernate.MappingException: No persister for:

    - by Sara Chipps
    Now, before you say it I DID google and my hbm.xml file IS an Embedded Resource. Here is the code I am calling: ISession session = GetCurrentSession(); var returnObject = session.Get<T>(Id); Here is my mapping file for the class: <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <class name="HQData.Objects.SubCategory, HQData" table="SubCategory" lazy="true"> <id name="ID" column="ID" unsaved-value="0"> <generator class="identity" /> </id> <property name="Name" column="Name" /> <property name="NumberOfBuckets" column="NumberOfBuckets" /> <property name="SearchCriteriaOne" column="SearchCriteriaOne" /> <bag name="_Businesses" cascade="all"> <key column="SubCategoryId"/> <one-to-many class="HQData.Objects.Business, HQData"/> </bag> <bag name="_Buckets" cascade="all"> <key column="SubCategoryId"/> <one-to-many class="HQData.Objects.Bucket, HQData"/> </bag> </class> </hibernate-mapping> Has anyone run to this issue before? I swore that was it after I read it, but no dice. Here is the rest of the error and thanks for your help. MappingException: No persister for: HQData.Objects.SubCategory]NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String entityName, Boolean throwIfNotFound) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionFactoryImpl.cs:766 NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String entityName) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionFactoryImpl.cs:752 NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, LoadType loadType) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Event\Default\DefaultLoadEventListener.cs:37 NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType loadType) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:2054 NHibernate.Impl.SessionImpl.Get(String entityName, Object id) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:1029 NHibernate.Impl.SessionImpl.Get(Type entityClass, Object id) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:1020 NHibernate.Impl.SessionImpl.Get(Object id) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:985 HQData.DataAccessUtils.NHibernateObjectHelper.LoadDataObject(Int32 Id) in C:\Development\HQChannelRepo\HQ Channel Application\HQChannel\HQData\DataAccessUtils\NHibernateObjectHelper.cs:42 HQWebsite.LocalSearch.get_subCategory() in C:\Development\HQChannelRepo\HQ Channel Application\HQChannel\HQWebsite\LocalSearch.aspx.cs:17 HQWebsite.LocalSearch.Page_Load(Object sender, EventArgs e) in C:\Development\HQChannelRepo\HQ Channel Application\HQChannel\HQWebsite\LocalSearch.aspx.cs:27 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436 I had changed some code and I wasn't adding the Assembly to the config file during runtime. Thanks for your help This has been fixed, I am not F-ing with my NHibernate setup ever again!

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  • Impersonation - Access is denied

    - by krisg
    I am having trouble using impersonation to delete a PerformanceCounterCategory from an MVC website. I have a static class and when the application starts it checks whether or not a PerformanceCounterCategory exists, and if it contains the correct counters. If not, it deletes the category and creates it again with the required counters. It works fine when running under the built in webserver Cassini, but when i try run it through IIS7 (Vista) i get the following error: Access is denied Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ComponentModel.Win32Exception: Access is denied The code used is from an MS article, from memory... var username = "user"; var password = "password"; var domain = "tempuri.org"; WindowsImpersonationContext impersonationContext; // if impersonation fails - return if (!ImpersonateValidUser(username, password, domain, out impersonationContext)) { throw new AuthenticationException("Impersonation failed"); } PerformanceCounterCategory.Delete(PerfCategory); UndoImpersonation(impersonationContext); ... private static bool ImpersonateValidUser(string username, string password, string domain, out WindowsImpersonationContext impersonationContext) { const int LOGON32_LOGON_INTERACTIVE = 2; const int LOGON32_PROVIDER_DEFAULT = 0; WindowsIdentity tempWindowsIdentity; var token = IntPtr.Zero; var tokenDuplicate = IntPtr.Zero; if (RevertToSelf()) { if (LogonUserA(username, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref token) != 0) { if (DuplicateToken(token, 2, ref tokenDuplicate) != 0) { tempWindowsIdentity = new WindowsIdentity(tokenDuplicate); impersonationContext = tempWindowsIdentity.Impersonate(); if (impersonationContext != null) { CloseHandle(token); CloseHandle(tokenDuplicate); return true; } } } } if (token != IntPtr.Zero) CloseHandle(token); if (tokenDuplicate != IntPtr.Zero) CloseHandle(tokenDuplicate); impersonationContext = null; return false; } [DllImport("advapi32.dll")] public static extern int LogonUserA(String lpszUserName, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] public static extern int DuplicateToken(IntPtr hToken, int impersonationLevel, ref IntPtr hNewToken); [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] public static extern bool RevertToSelf(); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool CloseHandle(IntPtr handle); The error is thrown when processing tries to execute the PerformanceCounterCategory.Delete command. Suggestions?

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  • AJAX TabContainer containing user controls

    - by Ali
    Hi all, Wondering if someone here can help. I have an AJAX tabcontainer which has a number of tabs and each tab contains a user control. When I add a new item from one of the tabs, it is not reflected in the user control in another tab unless a postback occurs. (e.g. the first tab has a listview where I add a new record and the second has a simple form which contains a drop-down which I expect to contain value added from first tab). How can I make the tabcontainer to refresh its tabs from a usercontrol? Any help will be most appreciated. Thanks, Ali

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  • Html.Action link and Html.RouteLink

    - by Sagar
    Even If the url is same can i go to different action using Html.RouteLink and Action Link.Like when i click on news link i will go to news details.The url of this page is http://localhost:1390/en-US/latestnews/125.Now if i select the ddl of language in the site header in this pagei need to go to the home page of the site.The ddl (on change) will take the same url but this time it needs to go to action in the sane controller.

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  • Best way to mock WCF Client proxy

    - by chugh97
    Are there any ways to mock a WCF client proxy using Rhino mocks framework so I have access to the Channel property? I am trying to unit test Proxy.Close() method but as the proxy is constructed using the abstract base class ClientBast which has the ICommunication interface, my unit test is failing as the internal infrastructure of the class is absent in the mock object. Any good ways with code samples would be greatly appreciated.

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  • C# Regex.IsMatch returns true when it shouldn't?

    - by James Cadd
    I'm attempting to match a string that can contain any number of numeric characters or a decimal point using the following regex: ([0-9.])* Here's some C# code to test the regex: Regex regex = new Regex("([0-9.])*"); if (!regex.IsMatch("a")) throw new Exception("No match."); I expect the exception to be thrown here but it isn't - am I using the Regex incorrectly or is there an error in the pattern? EDIT: I'd also like to match a blank string.

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  • Converting sql query to EF query - nested query in from

    - by vdh_ant
    Hey guys Just wondering how the following sql query would look in linq for Entity Framework... SELECT KPI.* FROM KeyPerformanceIndicator KPI INNER JOIN ( SELECT SPP.SportProgramPlanId FROM SportProgramPlan PSPP INNER JOIN SportProgramPlan ASPP ON (PSPP.SportProgramPlanId = @SportProgramPlanId AND PSPP.StartDate >= ASPP.StartDate AND PSPP.EndDate <= ASPP.EndDate ) AS SPP ON KPI.SportProgramPlanId = SPP.SportProgramPlanId Cheers Anthony

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  • VisualStyleRenderer and themes (WinForms)

    - by Yves
    I have my own TreeView control which is completely OwnerDraw'ed: myTreeView.DrawMode = TreeViewDrawMode.OwnerDrawAll; What I try to achieve is to draw the opened/closed glyph according to the current explorer theme. Especially on Vista and Win7 boxes I'd like to see the new glyphes (black triangles) instead of the plus/minus signs. I know, for a non-OwnerDraw'ed TreeView this can be achieved as follows which works perfectly: myTreeView.HandleCreated += delegate(object sender, EventArgs args) { MyNativeMethods.SetWindowTheme(myTreeView.Handle, "explorer", null); }; I thought a VisualStyleRenderer let me paint the glyphs theme-aware: VisualStyleRenderer r = new VisualStyleRenderer(VisualStyleElement.TreeView.Glyph.Opened); r.DrawBackground(e.Graphics, e.Bounds); The code above unfortunately draws the minus sign in all cases. It looks like the VisualStyleRenderer does not honour the theme setting. Can someone shed some light on this? Thanks!

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  • JQuery UI function errors out: Object is not a property or method

    - by Luke101
    In the following code I get an error that says autocomplete function Object is not a property or method Here is the code: <title><%= ViewData["pagetitle"] + " | " + config.Sitename.ToString() %></title> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/minified/jquery.ui.core.min.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/minified/jquery.ui.core.min.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/jquery.ui.widget.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/jquery.ui.position.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/jquery.ui.autocomplete.js" type="text/javascript"></script> <script language="javascript" type="text/javascript" src="/Scripts/main.js"></script> <script language="javascript" type="text/javascript"> $(document).ready(function () { Categories(); $('#tags1').autocomplete({ //error here url: '/Tag/TagAutoComplete', width: 320, max: 4, delay: 30, cacheLength: 1, scroll: false, highlight: false }); }); </script>

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  • WrapPanel doesn't wrap in WPF ListView

    - by Joan Venge
    I am using a ListView with an ItemTemplate like this: <Window.Resources> <DataTemplate x:Key="ItemTemplate"> <WrapPanel Orientation="Horizontal"> <Image Width="50" Height="50" Stretch="Fill" Source="{Binding Cover}"/> <Label Content="{Binding Title}" /> </WrapPanel> </DataTemplate> </Window.Resources> But the Covers do not fill the screen like windows explorer windows. How do I do this? They just get stacked vertically in my version.

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  • Html.EditorFor not updating model on post

    - by Dave
    I have a complex type composed of two nullable DateTimes: public class Period { public DateTime? Start { get; set; } public DateTime? End { get; set; } public static implicit operator string(Period period) { /* converts from Period to string */ } public static implicit operator Period(string value) { /* and back again */ } } I want to display them together in a single textbox as a date range so I can provide a nice jQuery UI date range selector. To make that happen have the following custom editor template: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Period>" %> <% string name = ViewData.TemplateInfo.HtmlFieldPrefix; %> <%= Html.PeriodTextBox(name, Model.EarliestDate, Model.LatestDate) %> Where Html.PeriodTextBox is an extension method I've written that just concatenates the two dates sensibly, turns off autocomplete and generates a textbox, like so: public static MvcHelperString PeriodTextBox(this HtmlHelper helper, string name, DateTime? startDate, DateTime? endDate) { TagBuilder builder = new TagBuilder("input"); builder.GenerateId(name); builder.Attributes.Add("name", name); builder.Attributes.Add("type", "text"); builder.Attributes.Add("autocomplete", "off"); builder.Attributes.Add("value", ConcatDates(startDate, endDate)); return MvcHtmlString.Create(builder.ToString()); } That's working fine in that I can call <%= Html.EditorFor(m => m.ReportPeriod) %> and I get my textbox, then when the form is submitted the FormCollection passed to the post action will contain an entry named ReportPeriod with the correct value. [HttpPost] public ActionResult ReportByRange(FormCollection formValues) { Period reportPeriod = formValues["ReportPeriod"]; // creates a Period, with the expected values } The problem is if I replace the FormCollection with the model type I'm passing to the view then the ReportPeriod property never gets set. [HttpPost] public ActionResult ReportByRange(ReportViewModel viewModel) { Period reportPeriod = viewModel.ReportPeriod; // this is null } I expected MVC would try to set the string from the textbox to that property and it would automatically generate a Period (as in my FormCollection example), but it's not. How do I tell the textbox I've generated in the custom editor to poplate that property on the model?

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  • How do I use AutofacWebTypesModule to Resolve HttpServerUtilityBase

    - by Scott Weinstein
    I have the following registrations builder.RegisterModule(new AutofacWebTypesModule()); builder.Register<MyType>(ctx => { var server = ctx.Resolve<HttpServerUtilityBase>(); ... }); When I try to resolve MyType via a constructor on an Controller, I get the following exception. What am I doing wrong? Autofac.Core.DependencyResolutionException was unhandled by user code Message=No scope matching the expression 'value(Autofac.Builder.RegistrationBuilder`3+<c__DisplayClass0[System.Web.HttpServerUtilityBase,Autofac.Builder.SimpleActivatorData,Autofac.Builder.SingleRegistrationStyle]).lifetimeScopeTag.Equals(scope.Tag)' is visible from the scope in which the instance was requested.

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  • WCF 405 Method Not Allowed Crazy Error Help!

    - by devmania
    hi, i am going crazy i have read like 10s of articles also on stackoverflow about that i am calling webservice in restful way and should enable this in service and in webconfig, so i did that but as soon as i add the [WebGet()] Attribute i get this crazy error if i remove it then the service get called seamlessly i am using VS 2010 RC 1 IIS 7 Windows 7 here is my code [ServiceContract(Namespace = "")] [AspNetCompatibilityRequirements(RequirementsMode =AspNetCompatibilityRequirementsMode.Allowed)] public class Service2 { [OperationContract] [WebGet()] public List<Table1> GetCustomers(string numberToFetch) { using (DataClassesDataContext context = new DataClassesDataContext()) { return context.Table1s.Take(numberToFetch).ToList( ); } } } and my ASPX page Code <body xmlns:sys="javascript:Sys" xmlns:dataview="javascript:Sys.UI.DataView"> <div id="CustomerView" class="sys-template" sys:attach="dataview" dataview:autofetch="true" dataview:dataprovider="Service2.svc" dataview:fetchParameters="{{ {numberToFetch: 2} }}" dataview:fetchoperation="GetCustomers"> <ul> <li>{{name}}</li> </ul> </div> and my Web.config code <system.serviceModel> <behaviors> <endpointBehaviors> <behavior name="Service2AspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> <services> <service name="Service2"> <endpoint address="" behaviorConfiguration="Service2AspNetAjaxBehavior" binding="webHttpBinding" contract="Service2" /> </service> </services> </system.serviceModel> totally appreciate the help

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  • Manually iterating over a selection of XML elements (C#, XDocument)

    - by user316117
    What is the “best practice” way of manually iterating (i.e., one at a time with a “next” button) over a set of XElements in my XDocument? Say I select the set of elements I want thusly: var elems = from XElement el in m_xDoc.Descendants() where (el.Name.LocalName.ToString() == "q_a") select el; I can use an IEnumerator to iterate over them, i.e., IEnumerator m_iter; But when I get to the end and I want to wrap around to the beginning if I call Reset() on it, it throws a NotSupportedException. That’s because, as the Microsoft C# 2.0 Specification under chapter 22 "Iterators" says "Note that enumerator objects do not support the IEnumerator.Reset method. Invoking this method causes a System.NotSupportedException to be thrown ." So what IS the right way of doing this? And what if I also want to have bidirectional iteration, i.e., a “back” button, too? Someone on a Microsoft discussion forum said I shouldn’t be using IEnumerable directly anyway. He said there was a way to do what I want with LINQ but I didn’t understand what. Someone else suggested dumping the XElements into a List with ToList(), which I think would work, but I wasn’t sure it was “best practice”. Thanks in advance for any suggestions!

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  • How create a Firefox-like search textbox in WPF?

    - by Simon
    Hey there. I'm writing an application in WPF using the MVVM-pattern and will really often use TextBoxes. I don't want to use labels for the user to know user what the text box is for, i.e. I don't want something like this: <TextBlock> Name: </TextBlock> <TextBox /> Instead, I would like the TextBox to contain its own label. Statically, you would express it like this: <TextBox>Name</TextBox> If the cursor is displayed in the textbox, i.e. the TextBox gains focus, I want the description text to disappear. If the TextBox is left empty and it loses the focus, the description text should be shown again. It's similar to the search textbox of StackOverflow or the one of Firefox. (please tell me if your not sure what I mean). One TextBox's label may change at runtime, dependending on e.g. a ComboBox's selected element or a value in my ViewModel. (It's like in Firefox's search TextBox, if you select google from the search engins' menu, the TextBox's label changes to "Google", if you select "Yahoo" its set to "Yahoo"). Thus I want to be able to bind the label's content. Consider that I may already have a Binding on the Text-Property of the TextBox. How can implement such a behaviour and make it reusable for any of my TextBox's? Code is welcome but not needed; a description of what to do is enough. Thank you in advance.

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  • Why is XmlSerializer throwing an InvalidOperationException?

    - by qster
    public void Save() { XmlSerializer Serializer = new XmlSerializer(typeof(DatabaseInformation)); /* A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll A first chance exception of type 'System.InvalidOperationException' occurred in System.Xml.dll */ // .... } This is the whole class if you need it: public class DatabaseInformation { /* Create new database */ public DatabaseInformation(string name) { mName = name; NeedsSaving = true; mFieldsInfo = new List<DatabaseField>(); } /* Read from file */ public static DatabaseInformation DeserializeFromFile(string xml_file_path) { XmlSerializer Serializer = new XmlSerializer(typeof(DatabaseInformation)); TextReader r = new StreamReader(xml_file_path); DatabaseInformation ret = (DatabaseInformation)Serializer.Deserialize(r); r.Close(); ret.NeedsSaving = false; return ret; } /* Save */ public void Save() { XmlSerializer Serializer = new XmlSerializer(typeof(DatabaseInformation)); if (!mNeedsSaving) return; TextWriter w = new StreamWriter(Path.Combine(Program.MainView.CommonDirectory.Get(), Name + ".xml"), false); Serializer.Serialize(w, this); w.Close(); NeedsSaving = false; } private string mName; public string Name { get { return mName; } } private bool mNeedsSaving; public bool NeedsSaving { get { return mNeedsSaving; } set { mNeedsSaving = value; Program.MainView.UpdateTitle(value); } } private bool mHasId; public bool HasId { get { return mHasId; } } List<DatabaseField> mFieldsInfo; }

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  • VB 2008 or VB 2010 Dataset help

    - by Diabolo
    I have three forms similar to the one in the link. I want add a Total textbox to every form. The total will add the values that will be entered in the montant textbox. So the total will take the specific value of that texbox for all the entries that the user will have and add them. How I can do so???? Thanks http://i1006.photobucket.com/albums/af189/diaboloent/OneForm.jpg

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  • Combined SOAP/JSON/XML in WCF, using UriTemplate

    - by gregmac
    I'm trying to build a generic web service interface using WCF, to allow 3rd party developers to hook into our software. After much struggling and reading (this question helped a lot), I finally got SOAP, JSON and XML (POX) working together. To simplify, here's my code (to make this example simple, I'm not using interfaces -- I did try this both ways): <ServiceContract()> _ Public Class TestService Public Sub New() End Sub <OperationContract()> _ <WebGet()> _ Public Function GetDate() As DateTime Return Now End Function '<WebGet(UriTemplate:="getdateoffset/{numDays}")> _ <OperationContract()> _ Public Function GetDateOffset(ByVal numDays As Integer) As DateTime Return Now.AddDays(numDays) End Function End Class and the web.config code: <services> <service name="TestService" behaviorConfiguration="TestServiceBehavior"> <endpoint address="soap" binding="basicHttpBinding" contract="TestService"/> <endpoint address="json" binding="webHttpBinding" behaviorConfiguration="jsonBehavior" contract="TestService"/> <endpoint address="xml" binding="webHttpBinding" behaviorConfiguration="poxBehavior" contract="TestService"/> <endpoint address="mex" contract="IMetadataExchange" binding="mexHttpBinding" /> </service> </services> <behaviors> <endpointBehaviors> <behavior name="jsonBehavior"> <enableWebScript/> </behavior> <behavior name="poxBehavior"> <webHttp /> </behavior> </endpointBehaviors> <serviceBehaviors> <behavior name="TestServiceBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> </behaviors> This actually works -- I'm able to go to TestService.svc/xml/GetDate for xml, TestService.svc/json/GetDate for json, and point a SOAP client at TestService.svc?wsdl and have the SOAP queries work. The part I'd like to fix is the queries. I have to use TestService.svc/xml/GetDateOffset?numDays=4 instead of TestService.svc/xml/GetDateOffset/4. If I specify the UriTemplate, I get the error: Endpoints using 'UriTemplate' cannot be used with 'System.ServiceModel.Description.WebScriptEnablingBehavior'. But of course without using <enableWebScript/>, JSON doesn't work. The only other thing I've seen that I think will work is making 3 different services (.svc files), that all implement an interface that specifies the contract, but in the classes specify different WebGet/WebInvoke attributes on each class. This seems like a lot of extra work, that frankly, I don't see why the framework doesn't handle for me. The implementation of the classes would all be the same, except for the attributes, which means over time it would be easy for bugs/changes to get fixed/done in one implementation but not the others, leading to inconsistent behaviour when using the JSON vs SOAP implementation for example. Am I doing something wrong here? Am I taking a totally wrong approach and misusing WCF? Is there a better way to do this? With my experience doing web stuff, I think it should be possible for some kind of framework to handle this ... I even have an idea in my head of how to build it. It just seems like WCF is supposed to be doing this, and I don't really want to reinvent the wheel.

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  • Way to concat strings when using binding in Silverlight

    - by Artur
    I wonder if there is a way of concating two strings in Silverlight inside xaml file. I have a DataGrid where one of the columns is 'Default Contact' and I would like to represent data in there as first and last name. <sdk:DataGridTextColumn Header="Default Contact" Binding="{Binding Path=DefaultContact.FirstName}" /> I was thinking about something like: Binding="{Binding Path=DefaultContact.FirstName + " " + DefaultContact.LasttName}" But this doesn't work. I don't even know if this is possible to achieve. Seems like really basic thing so I hope it is supported in some way. Any help would be greatly appreciated.

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  • Entity framework MappingException: The type 'XXX has been mapped more than once

    - by Michal
    Hi everyone, I'm using Entity framework in web application. ObjectContext is created per request (using HttpContext), hereby code: string ocKey = "ocm_" + HttpContext.Current.GetHashCode().ToString(); if (!HttpContext.Current.Items.Contains(ocKey)) { HttpContext.Current.Items.Add(ocKey, new ElevationEntityModel(EFConnectionString)); } _eem = HttpContext.Current.Items[ocKey] as ElevationEntityModel; Not every time, but sometimes I have this exception: System.Data.MappingException was unhandled by user code Message=The type 'XXX' has been mapped more than once. Source=System.Data.Entity I'm absolutely confused and I don't have any idea what can caused this problem. Can anybody help me? Thanks.

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  • Edit and render RichText

    - by OregonGhost
    We have an application (a custom network management tool for building automation) that supports printing labels that you can cut out and insert into the devices' front displays. In earlier versions of the tool (not developed in my company), the application just pushed the strings into an Excel file that the field technician could then manipulate (like formatting text). We didn't do this in the new version because it was hard (impossible) to keep the Excel file in sync, and to avoid a binding to an external application (let alone different versions of Excel). We're using PDFSharp for rendering the labels. It has a System.Drawing-like interface, but can output to a System.Drawing.Graphics (screen / printer) as well as to a PDF file, which is a requirement. Later, basic formatting was introduced like Font Family, Style, Size, Color which would apply to one label (i.e. to exactly one string). Now the customer wants to be able to apply these formats to single characters in a string. I think the easiest way would be to support a subset of RichText. It's not as easy as I thought though. Currently the editor just displays a TextBox for the label you want to edit, with the font set to the label's font. I thought I'd just replace it with RichTextBox, and update the formatting buttons to use the RichTextBox formatting properties. Fairly easy. However, I need to draw the text. I know you can get the RichTextBox to draw to a HDC or System.Drawing.Graphics - but as already said, I need it to use PDFSharp. Rendering to bitmaps is not an option, since the PDF must not be huge, and it's a lot of labels. Unfortunately I couldn't get the RichTextBox to tell me the layout of the text - I'm fine with doing the actual rendering by hand, as long as I know where to draw what. This is the first question: How can I get the properly layouted metrics of the rich text out of a RichTextBox? Or is there any way to convert the rich text to a vector graphics format that can be easily drawn manually? I know about NRTFTree which can be used to parse and manipulate RichText. The documentation is bad (actually I don't know, it's Spanish), but I think I can get it to work. As far as I understood, it won't provide layouting as well. Because of this, I think I'll have to write a custom edit control (remember, it's basically just one or two line labels with basic RTF formatting, not a full-fledged edit control - more like editing a textbox in PowerPoint) and write custom text layout logic that used PDFSharp rather than System.Drawing for drawing. Is there any existing, even if partial, solution available, either for the editing or for doing the layout manually (or both)? Or is there an entirely different approach I'm just not seeing? Bonus points if exporting the label texts as RTF into a CSV file, and then importing in Excel retains the formatting. For the editing part, I need it to work in Windows Forms. Other than that it's not Windows-Forms-related, I think.

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