Search Results

Search found 11067 results on 443 pages for 'generic collection'.

Page 196/443 | < Previous Page | 192 193 194 195 196 197 198 199 200 201 202 203  | Next Page >

  • "Chunked" MemoryStream

    - by Karol Kolenda
    I'm looking for the implementation of MemoryStream which does not allocate memory as one big block, but rather a collection of chunks. I want to store a few GB of data in memory (64 bit) and avoid limitation of memory fragmentation.

    Read the article

  • Catch Exception only in release

    - by Cicik
    HI, I have one global generic exception handler(catch ex as Exception) for all unhandled exceptions from application. But in debug mode(app runs from VS) I don`t want that exceptions go to this global handler. Better for me is when VS stops app on place when exception occurs. How can I do this, or is there some better approach for this? thanks

    Read the article

  • Handling Model Inheritance in ASP.NET MVC2 & NHibernate

    - by enth
    I've gotten myself stuck on how to handle inheritance in my model when it comes to my controllers/views. Basic Model: public class Procedure : Entity { public Procedure() { } public int Id { get; set; } public DateTime ProcedureDate { get; set; } public ProcedureType Type { get; set; } } public ProcedureA : Procedure { public double VariableA { get; set; } public int VariableB { get; set; } public int Total { get; set; } } public ProcedureB : Procedure { public int Score { get; set; } } etc... many of different procedures eventually. So, I do things like list all the procedures: public class ProcedureController : Controller { public virtual ActionResult List() { IEnumerable<Procedure> procedures = _repository.GetAll(); return View(procedures); } } but now I'm kinda stuck. Basically, from the list page, I need to link to pages where the specific subclass details can be viewed/edited and I'm not sure what the best strategy is. I thought I could add an action on the ProcedureController that would conjure up the right subclass by dynamically figuring out what repository to use and loading the subclass to pass to the view. I had to store the class in the ProcedureType object. I had to create/implement a non-generic IRepository since I can't dynamically cast to a generic one. public virtual ActionResult Details(int procedureID) { Procedure procedure = _repository.GetById(procedureID, false); string className = procedure.Type.Class; Type type = Type.GetType(className, true); Type repositoryType = typeof (IRepository<>).MakeGenericType(type); var repository = (IRepository)DependencyRegistrar.Resolve(repositoryType); Entity procedure = repository.GetById(procedureID, false); return View(procedure); } I haven't even started sorting out how the view is going to determine which partial to load to display the subclass details. I'm wondering if this is a good approach? This makes determining the URL easy. It makes reusing the Procedure display code easy. Another approach is specific controllers for each subclass. It simplifies the controller code, but also means many simple controllers for the many procedure subclasses. Can work out the shared Procedure details with a partial view. How to get to construct the URL to get to the controller/action in the first place? Time to not think about it. Hopefully someone can show me the light. Thanks in advance.

    Read the article

  • How to fix "could not find a base address that matches schema http"... in WCF

    - by Craig Shearer
    I'm trying to deploy a WCF service to my server, hosted in IIS. Naturally it works on my machine :) But when I deploy it, I get the following error: This collection already contains an address with scheme http. There can be at most one address per scheme in this collection. Googling on this, I find that I have to put a serviceHostingEnvironment element into the web.config file: <serviceHostingEnvironment> <baseAddressPrefixFilters> <add prefix="http://mywebsiteurl"/> </baseAddressPrefixFilters> </serviceHostingEnvironment> But once I have done this, I get the following: Could not find a base address that matches scheme http for the endpoint with binding BasicHttpBinding. Registered base address schemes are [https]. It seems it doesn't know what the base address is, but how do I specify it? Here's the relevant section of my web.config file: <system.serviceModel> <serviceHostingEnvironment> <baseAddressPrefixFilters> <add prefix="http://mywebsiteurl"/> </baseAddressPrefixFilters> </serviceHostingEnvironment> <behaviors> <serviceBehaviors> <behavior name="WcfPortalBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="true"/> </behavior> </serviceBehaviors> </behaviors> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_IWcfPortal" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" receiveTimeout="00:10:00" sendTimeout="00:10:00" openTimeout="00:10:00" closeTimeout="00:10:00"> <readerQuotas maxBytesPerRead="2147483647" maxArrayLength="2147483647" maxStringContentLength="2147483647"/> </binding> </basicHttpBinding> </bindings> <services> <service behaviorConfiguration="WcfPortalBehavior" name="Csla.Server.Hosts.Silverlight.WcfPortal"> <endpoint address="" binding="basicHttpBinding" contract="Csla.Server.Hosts.Silverlight.IWcfPortal" bindingConfiguration="BasicHttpBinding_IWcfPortal"> </endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> </service> </services> </system.serviceModel> Can anybody shed some light on what's going on and how to fix it? Thanks! Craig

    Read the article

  • Forcing the GC to collect JNI proxy objects

    - by SyBer
    Hi. While I do my best to clean JNI objects to free native memory in the end of the usage, there are still some that hang around for a long time, wasting system native memory. Is there any way to force the GC to give priority in collection of these JNI proxies? I mean is there a way to cause GC to concentrate on a particular kind of object, namely the JNI proxies? Thanks.

    Read the article

  • Is it possible to Take object members directly from a queue of type object?

    - by Luke Mcneice
    Hi all, If I where to have a Queue holding a collection of objects (Custom object,bool,bool,bool,bool) and the custom object holds three doubles itself. Can I use the .Take(IntegerValue) command to only take one of the doubles (for the specified take length) from the custom entity contained in the queue and cast it to a double array, possibly with the .ToArray<double> function? Thanks, Luke

    Read the article

  • C# memory management: unsafe keyword and pointers

    - by Alerty
    What are the consequences (positive/negative) of using the unsafe keyword in C# to use pointers? For example, what becomes of garbage collection, what are the performance gains/losses, what are the performance gains/losses compared to other languages manual memory management, what are the dangers, in which situation is it really justifiable to make use of this language feature... ?

    Read the article

  • Expression Tree Binary Expression for an 'In' operation

    - by Adam Driscoll
    I'm trying to build an expression tree (still) but getting further! I need to create a BinaryExpression to perform an 'In' comparison between a Member and a collection of items. Hence, the expression should return true if the member is contained within the items. This obviously does not exist: Expression.MakeBinary(ExpressionType.In, memberExpression, constantExpression); constantExpression is a ConstantExpression of type IEnumerable while memberExpression is a MemberExpression of type T. How would I create such an expression?

    Read the article

  • implement INotifyCollectionChanged etc on xml file changed

    - by netmajor
    It's possible to implement INotifyCollectionChanged or other interface like IObservable to enable to bind filtered data from xml file on this file changed ? I see examples with properties or collection, but what with files changes ? I have that code to filter and bind xml data to list box: XmlDocument channelsDoc = new XmlDocument(); channelsDoc.Load("RssChannels.xml"); XmlNodeList channelsList = channelsDoc.GetElementsByTagName("channel"); this.RssChannelsListBox.DataContext = channelsList;

    Read the article

  • Retrieve EF4 POCOs using WCF REST services starter kit

    - by muruge
    I am using WCF REST service (GET method) to retrieve my EF4 POCOs. The service seem to work just fine. When I query the uri in my browser I get the results as expected. In my client application I am trying to use WCF REST Starter Kit's HTTPExtension method - ReadAsDataContract() to convert the result back into my POCO. This works fine when the POCO's navigation property is a single object of related POCO. The problem is when the navigation property is a collection of related POCOs. The ReadAsDataContract() method throws an exception with message "Object reference not set to an instance of an object." Below are my POCOs. [DataContract(Namespace = "", Name = "Trip")] public class Trip { [DataMember(Order = 1)] public virtual int TripID { get; set; } [DataMember(Order = 2)] public virtual int RegionID { get; set; } [DataMember(Order = 3)] public virtual System.DateTime BookingDate { get; set; } [DataMember(Order = 4)] public virtual Region Region { // removed for brevity } } [DataContract(Namespace = "", Name = "Region")] public class Region { [DataMember(Order = 1)] public virtual int RegionID { get; set; } [DataMember(Order = 2)] public virtual string RegionCode { get; set; } [DataMember(Order = 3)] public virtual FixupCollection<Trip> Trips { // removed for brevity } } [CollectionDataContract(Namespace = "", Name = "{0}s", ItemName = "{0}")] [Serializable] public class FixupCollection<T> : ObservableCollection<T> { protected override void ClearItems() { new List<T>(this).ForEach(t => Remove(t)); } protected override void InsertItem(int index, T item) { if (!this.Contains(item)) { base.InsertItem(index, item); } } } And this is how I am trying retrieve a Region POCO. static void GetRegion() { string uri = "http://localhost:8080/TripService/Regions?id=1"; HttpClient client = new HttpClient(uri); using (HttpResponseMessage response = client.Get(uri)) { Region region; response.EnsureStatusIsSuccessful(); try { region = response.Content.ReadAsDataContract<Region>(); // this line throws exception because Region returns a collection of related trips Console.WriteLine(region.RegionName); } catch (Exception ex) { Console.WriteLine(ex.Message); } } } Would appreciate any pointers.

    Read the article

  • Zen Cart - Get Line items in Paypal?

    - by kylex
    Is there anyway to guarantee line items be displayed in PayPal instead of the very generic description for all items combined? For example, if someone orders 3 items with the total of $100.00, paypal shows one item with "Items Purchased" as the description and the total cost. I'd like an itemized list. Often I need to view the items in Paypal and just need to know if this is possible and how to set it up.

    Read the article

  • add data to column series in wpf C#

    - by Archana R
    Hello, I want to create a ColumnSeries Bar Chart in WPF using C#. I shall extract the data from the database and want to bind it to the bar chart. The data extracted will contain two values. First is parameter name(string) and the other is its value(double). Which type of collection shall i use? and how to do the binding? Thanks in advance.

    Read the article

  • Extended Django base-class with multiple instances

    - by Gijs
    I'm modeling a simple movie database using Django. models.py defines a base model Person. I extend Person into Actor and Director, which works as I imagined. Persons must be unique. When (in the Admin) I create an instance of Actor, and this person is also a Director, it won't save because of the unique = True. Any ideas how to solve this problem? (generic foreign keys?) Thx

    Read the article

  • How can I assign more than one ValueProvider to ModelBindingContext when testing a custom model bind

    - by Byron Sommardahl
    I have a custom model binder that uses data from session, tempdata, and form collection (hypothetically, of course!). When testing my model binder, need to create a ModelBindingContext with a ValueProvider. Trouble is, I can't see how I can have one ValueProvider that serves multiple value provider types. Any words of wisdom? ValidModelBindingContext = new ModelBindingContext { ModelName = "SomeModel", ValueProvider = ValidFormValueCollection };

    Read the article

  • Rails - embedded polymorphic comment list + add comment form - example?

    - by odigity
    Hey, all. Working on my first Rails app. I've searched all around - read a bunch of tutorials, articles, and forum posts, watched some screencasts, and I've found a few examples that come close to what I'm trying to do (notably http://railscasts.com/episodes/154-polymorphic-association and ep 196 about nested model forms), but not exactly. I have two models (Podcast and BlogPost) that need to be commentable, and I have a Comment model that is polymorphically related to both. The railscasts above had a very similar example (ep 154), but Ryan used a full set of nested routes, so there were specific templates for adding and editing comments. What I want to do is show the list of comments right on the Podcast or BlogPost page, along with an Add Comment form at the bottom. I don't need a separate add template/route, and I don't need the ability to edit, only delete. This is a pretty common design on the web, but I can't find a Rails example specifically about this pattern. Here's my current understanding: I need routes for the create and delete actions, of course, but there are no templates associated with those. I'm also guessing that the right approach is to create a partial that can be included at the bottom of both the Podcast and BlogPost show template. The logical name for the partial seems to me to be something like _comments.html.haml. I know it's a common convention to have the object passed to the partial be named after the template, but calling the object 'comments' seems to not match my use case, since what I really need to pass is the commentable object (Podcast or BlogPost). So, I guess I'd use the locals option for the render partial call? (:commentable = @podcast). Inside the partial, I could call commentable.comments to get the comments collection, render that with a second partial (this time with the conventional use case, calling the partial _comment.html.haml), then create a form that submits to... what? REST-wise, it should be a POST to the collection, which would be /podcast|blogpost/:id/comments, and I think the helper for that is podcast_comments_path(podcast) if it were a podcast - not sure what to do though, since I'm using polymorphic comments. That would trigger the Comment.create action, which would then need to redirect back to the podcast|blogpost path /podcast|blogpost/:id. It's all a bit overwhelming, which is why I was really hoping to find a screencast or example that specifically implements this design.

    Read the article

  • Problem with write query

    - by phenevo
    Hi, I've got collection of geo objects in database: There are four Tables: Countries Regions Provinces Cities Cities has inter alia ProvinceCode Provinces has inter alia regionCode Regions has inter alia CountryCode And there is fifth Table: Descriptions ObjectCode ObjectType(country, region, province, city) Description. How to get from Descriptions table, all descriptions from objects which are in the definite country ??

    Read the article

  • Microsoft.Practices.ServiceLocation and TryGetInstance

    - by Feryt
    Why Microsoft.Practices.ServiceLocation.IServiceLocator does not offer TryGetInstance()? I need to get generic validator instance ServiceLocator.Current.GetInstance<IEntityValidator<TEntity>>() but not all Entities has registered validator. The only solution i found is to use try{}catch{} block, but i dont like this approach.

    Read the article

  • Google Base Query Problems

    - by Craig
    I am querying Google Base using the .NET library pretty much as described on this page. http://code.google.com/apis/base/docs/2.0/developers_guide_dotnet.html When I run the query a GBaseFeed is returned and it will usually have the TotalRecords property set to something like 35, but in the Entries collection it will often have no items or very few items. Other times the query returns all 35 items as expected in the Entries. Has anyone seen this behaviour or have any idea what could cause it?

    Read the article

  • GWT: How can I use JsonpRequestBuilder to handle a Json response of a list

    - by Anthony Kong
    My backend server function returns a list of json object to the caller. I would like to use JsonRequestBuilder to interact with this backend function I defined a AsyncCallback this way class MyCallBack extends AsyncCallback<List<MyObject>> { However, JsonpRequestBuilder does not this declaration AsyncCallback because the generic type is bounded to <T extends JavaScriptObject. List<MyObject does not satisfy this requirement. Do you have any suggestion to this problem?

    Read the article

  • List box values on postback

    - by kapil
    Hi, I am using asp.net mvc. I have used two list box in one of my views. I transfer desired items from left-hand-side list box to right-side list box. On a button click, i want to get the list box contents from right side list box. I don;t get in form collection. Can anyone please suggest how can I get it? thanks, kapil

    Read the article

< Previous Page | 192 193 194 195 196 197 198 199 200 201 202 203  | Next Page >