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  • Remove SelectedItems from a ListBox via MVVM RelayCommand

    - by dthrasher
    I have a list of items in a WPF ListBox. I want to allow the user to select several of these items and click a Remove button to eliminate these items from the list. Using the MVVM RealyCommand pattern, I've created a command with the following signature: public RelayCommand<IList> RemoveTagsCommand { get; private set; } My ViewModel constructor sets up an instance of the command: RemoveTagsCommand = new RelayCommand<IList>(RemoveTags, CanRemoveTags); My current implementation of RemoveTags feels clunky, with casts and copying. Is there a better way to implement this? public void RemoveTags(IList toRemove) { var collection = toRemove.Cast<Tag>(); List<Tag> copy = new List<Tag>(collection); foreach (Tag tag in copy) { Tags.Remove(tag); } }

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  • logback with EJB3.1

    - by kgrad
    I am using logback/slf4j to handle logging in my application. Everything was working perfectly until I started using EJBs. Once I added a stateless EJB to my app, the logger started ignoring my logback.xml and stopped using my appenders. I switched to a programmatic logger configuration to see what was wrong and now I am getting the following error when I try to use my logger within the EJB: org.slf4j.impl.JDK14LoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext stemming from the line: LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); Is there any special configuration necessary to get logback to work with EJBs? If it matters I am deploying on glassfish v3.

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  • Request all titles by actor using LINQ to Netflix OData

    - by Mark Heath
    I'm experimenting with LINQPad to use LINQ to query the Netflix OData. I'm trying to search for all films with a particular actor in. For example: from t in Titles from p in t.Cast where p.Name == "Morgan Freeman" select t.Name this results in: NotSupportedException: Can only project the last entity type in the query being translated I also tried: from p in People from t in p.TitlesActedIn where p.Name == "Morgan Freeman" select t.Name which results in the following error: NotSupportedException: The method 'Select' is not supported I've tried a few other approaches, such as using Id's in the where clause, and selecting different things, but have got nowhere.

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  • How to convert DATETIME to FILETIME value in T-SQL?

    - by Alek Davis
    I need to convert a SQL Server DATETIME value to FILETIME in a T-SQL SELECT statement (on SQL Server 2000). Is there a built-in function to do this? If not, can someone help me figure out how to implement this conversion routine as a UDF (or just plain Transact-SQL)? Here is what I know: FILETIME is 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601 (UTC) (per MSDN: FILETIME Structure). SQL Server time era starts on 1900-01-01 00:00:00 (per SELECT CAST(0 as DATETIME). I found several examples showing how to convert FILETIME values to T-SQL DATETIME (I'm not 100% sure they are accurate, though), but could not find anything about reverse conversion. Even the general idea (or algorithm) would help.

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  • Android - Read PNG image without alpha and decode as ARGB_8888 Android

    - by loki666
    I try to read an image from sdcard (in emulator) and then create a Bitmap image with the "BitmapFactory.decodeByteArray" method. I set the options: options.inPrefferedConfig = Bitmap.Config.ARGB_8888 options.inDither = false Then I extract the pixels into a ByteBuffer. ByteBuffer buffer = ByteBuffer.allocateDirect(width*height*4) bitmap.copyPixelsToBuffer(buffer) I use this ByteBuffer then in the JNI to convert it into RGB format and want to calculate on it. But always I get false data - I test without modifying the ByteBuffer. Only thing I do is to put it into the native method into JNI. Then cast it into a unsigned char* and convert it back into a ByteBuffer before returning it back to Java. Before displaying the image I get data back with bitmap.copyPixelsFromBuffer( buffer ) But then it has wrong data in it. My Question is if this is because the image is internally converted into RGB 565 or what is wrong here? May anybody has an idea, it would be great!

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  • Objective-C how to check if a string is null

    - by norskben
    SO I wish to check to see if the item in my array [clientDataArray objectForKey:@"ClientCompany"] is nil. temp = [clientDataArray objectForKey:@"ClientCompany"]; if (temp != [NSNull null]) infofieldCompany.text = temp; So far I have been able to achieve this through the above code, but it does give me the warnings warning: 'NSArray' may not respond to'-objectForKey:' warning: comparison of distinct Objective-C types 'struct NSNull *' and 'struct NSString *' lacks a cast My main interest is the second warning, but the first warning also interest me. How should I adapt my above code?

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  • Overriding Equals method in Structs

    - by devoured elysium
    I've looked for overriding guidelines for structs, but all I can find is for classes. At first I thought I wouldn't have to check to see if the passed object was null, as structs are value types and can't be null. But now that I come to think of it, as equals signature is public bool Equals(object obj) it seems there is nothing preventing the user of my struct to be trying to compare it with an arbitrary reference type. My second point concerns the casting I (think I) have to make before I compare my private fields in my struct. How am I supposed to cast the object to my struct's type? C#'s as keyword seems only suitable for reference types. Thanks

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  • C# Secure Sockets (SSL)

    - by Matthias Vance
    LS, I was planning on writing a wrapper around the System.Net.Sockets.Socket class, because I didn't feel like using the SSLStream class because I wanted to maintain backwards compatibility with other programs. I found an article which does exactly what I want, but on Windows Mobile. (Link: Enable SSL for managed socket on windows mobile) Quote: My first surprise was that SetSocketOption takes a SocketOptionName enum value as the second parameter, but this enum doesn’t have the equivalent of SO_SECURE. However, C# was nice enough to let me cast an arbitrary integer value to the enum I needed. I tried to do the same, but it doesn't work. Code: private const ushort SO_SECURE = 0x2001; private const ushort SO_SEC_SSL = 0x2004; this.SetSocketOption(SocketOptionLevel.Socket, (SocketOptionName) SO_SECURE, SO_SEC_SSL); Error: An unknown, invalid, or unsupported option or level was specified in a getsockopt or setsockopt call Is there a way to work around this? Kind regards, Matthias Vance

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  • asp.net mvc making ajax call jason

    - by mazhar kaunain baig
    Controller: public ActionResult EditOrganizationMeta(int id) { } [HttpPost] [ValidateInput(false)] public ActionResult EditOrganizationMeta(FormCollection collection) { } View: function DoAjaxCall() { var url = '<%= Url.Action("EditOrganizationMeta", "Organization") %>'; //url = url + '/' + dd; $.post(url, null, function(data) { alert(data); }); } <input type="button" name="something" value="Save" onclick="DoAjaxCall()" /> how would i make the ajax call , i have basically two functions with the same name EditOrganizationMeta,Do the form collection will be passed automatically.Basic confusion is regarding the method call Ok i made a call by ajax but after that My This code is not running anymore [HttpPost] [ValidateInput(false)] public ActionResult EditOrganizationMeta(FormCollection collection) { int OrganizationId = 11; string OrganizationName = "Ministry of Interior"; try { string ids = Request.Params // **getting error here some sequence is not there** .Cast<string>() .Where(p => p.StartsWith("button")) .Select(p => p.Substring("button".Length)) .First(); String RealValueOfThatControl = collection[ids]; } } catch { } return RedirectToAction("EditOrganizationMeta", new { id = OrganizationId }); } I think that there is no post

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  • MVC map to nullable bool in model

    - by fearofawhackplanet
    With a view model containing the field: public bool? IsDefault { get; set; } I get an error when trying to map in the view: <%= Html.CheckBoxFor(model => model.IsDefault) %> Cannot implicitly convert type 'bool?' to 'bool'. An explicit conversion exists (are you missing a cast?) I've tried casting, and using .Value and neither worked. Note the behaviour I would like is that submitting the form should set IsDefault in the model to true or false. A value of null simply means that the model has not been populated.

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  • linq to sql -> join

    - by ile
    SQL query: SELECT ArticleCategories.Title AS Category, Articles.Title, Articles.[Content], Articles.Date FROM ArticleCategories INNER JOIN Articles ON ArticleCategories.CategoryID = Articles.CategoryID Object repository: public class ArticleRepository { private DB db = new DB(); // // Query Methods public IQueryable<Article> FindAllArticles() { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID select new { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } .... } And finally, I get this error: Error 1 Cannot implicitly convert type 'System.Linq.IQueryable' to 'System.Linq.IQueryable'. An explicit conversion exists (are you missing a cast?) C:\Documents and Settings\ilija\My Documents\Visual Studio 2008\Projects\CMS\CMS\Models\ArticleRepository.cs 29 20 CMS Any idea what did I do wrong? Thanks, Ile

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  • XAML Parsing Exception

    - by e28Makaveli
    I have a simple XAML page that load fine when it is loaded as part of any application within Visual Studio. However, when I deploy this application using ClickOnce, I get the following exception: Type : System.Windows.Markup.XamlParseException, PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 Message : Unable to cast object of type 'System.Windows.Controls.Grid' to type 'EMS.Controls.Dictionary.StatusBarControl'. Error at object 'System.Windows.Controls.Grid' in markup file 'EMS.Controls.Dictionary;component/views/statusbarcontrol.xaml'. Source : PresentationFramework Help link : LineNumber : 0 LinePosition : 0 KeyContext : UidContext : NameContext : BaseUri : pack://application:,,,/EMS.Controls.Dictionary;component/views/statusbarcontrol.xaml Data : System.Collections.ListDictionaryInternal TargetSite : Void ThrowException(System.String, System.Exception, Int32, Int32, System.Uri, System.Windows.Markup.XamlObjectIds, System.Windows.Markup.XamlObjectIds, System.Type) Stack Trace : at System.Windows.Markup.XamlParseException.ThrowException(String message, Exception innerException, Int32 lineNumber, Int32 linePosition, Uri baseUri, XamlObjectIds currentXamlObjectIds, XamlObjectIds contextXamlObjectIds, Type objectType) at System.Windows.Markup.XamlParseException.ThrowException(ParserContext parserContext, Int32 lineNumber, Int32 linePosition, String message, Exception innerException) at System.Windows.Markup.BamlRecordReader.ReadRecord(BamlRecord bamlRecord) at System.Windows.Markup.BamlRecordReader.Read(Boolean singleRecord) at System.Windows.Markup.TreeBuilderBamlTranslator.ParseFragment() at System.Windows.Markup.TreeBuilder.Parse() at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream) at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator) at EMS.Controls.Dictionary.StatusBarControl.InitializeComponent() at EMS.Controls.Dictionary.StatusBarControl..ctor(IDataView content) at OCC600.ReportManager.ReportPresenter.ShowQueryView(Object arg, Boolean bringForward, Type selectedDataType) at OCC600.ReportManager.ReportPresenter..ctor(IUnityContainer container) at OCC600.ReportManager.Module.Initialize() at Microsoft.Practices.Composite.Modularity.ModuleLoader.Initialize(ModuleInfo[] moduleInfos) Inner Exception --------------- Type : System.InvalidCastException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message : Unable to cast object of type 'System.Windows.Controls.Grid' to type 'EMS.Controls.Dictionary.StatusBarControl'. Source : EMS.Controls.Dictionary Help link : Data : System.Collections.ListDictionaryInternal TargetSite : Void System.Windows.Markup.IComponentConnector.Connect(Int32, System.Object) Stack Trace : at EMS.Controls.Dictionary.StatusBarControl.System.Windows.Markup.IComponentConnector.Connect(Int32 connectionId, Object target) at System.Windows.Markup.BamlRecordReader.ReadConnectionId(BamlConnectionIdRecord bamlConnectionIdRecord) at System.Windows.Markup.BamlRecordReader.ReadRecord(BamlRecord bamlRecord) The XAML page is given below: xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:cdic="clr-namespace:EMS.Controls.Dictionary.Primitives" xmlns:dicutil="clr-namespace:OCC600.Infrastructure.Dictionary.Utility;assembly=EMS.Infrastructure.Dictionary" Loaded="ResultSetControl_Loaded" <StatusBarItem Margin="10,0, 10, 0"> <TextBlock Text="{Binding CountText}" Padding="5,0"/> </StatusBarItem> <StatusBarItem Margin="10,0"> <TextBlock Text="{Binding MemoryUsageText}" Padding="5,0"/> </StatusBarItem> <StatusBarItem Margin="10,0" MaxWidth="400"> <TextBlock Text="{Binding StatusReport.Summary}" Padding="5,0" /> </StatusBarItem> <ProgressBar Margin="20,0" Name="progBar" Width="150" Height="13" Visibility="Collapsed" > <ProgressBar.ContextMenu> <ContextMenu Name="ctxMenu" ItemsSource="{Binding ActiveWorkItems}" Visibility="{Binding Path=ActiveWorkItems.HasItems, Converter={StaticResource BooToVisConv}}"> <ContextMenu.ItemContainerStyle> <Style TargetType="{x:Type MenuItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type MenuItem}"> <StackPanel Height="20" Margin="10,0" Orientation="Horizontal" HorizontalAlignment="Left"> <TextBlock Text="{Binding Path=Name, Mode=OneTime}" Foreground="Black" VerticalAlignment="Center" HorizontalAlignment="Left" /> <ToggleButton Style="{StaticResource vistaGoldenToggleButtonStyle}" Padding="5,0" Content="Cancel" IsChecked="{Binding Cancel}" Margin="10,0,0,0" > </ToggleButton> </StackPanel> </ControlTemplate> </Setter.Value> </Setter> </Style> </ContextMenu.ItemContainerStyle> </ContextMenu> </ProgressBar.ContextMenu> </ProgressBar> <StatusBarItem Margin="10,0" MaxWidth="400" HorizontalAlignment="Right"> <StackPanel Orientation="Horizontal"> <TextBlock Text="Last Update:" Padding="5,0" /> <TextBlock Text="{Binding TimeStamp}" Padding="5,0" /> </StackPanel> </StatusBarItem> <!-- TODO: Put checkmark if all is well, or error if connection failed--> <StatusBarItem Style="{DynamicResource {ComponentResourceKey TypeInTargetAssembly=dc:Ribbon, ResourceId=StatusBarItemAlt}}" DockPanel.Dock="Right" Padding="6,0,32,0" > <cdic:SplitButton Margin="5,0" Padding="5,2" Style="{DynamicResource {ComponentResourceKey TypeInTargetAssembly={x:Type cdic:SplitButtonResources}, ResourceId=vistaSplitButtonStyle}}" Mode="Split"> <cdic:SplitButton.ContextMenu> <ContextMenu > <MenuItem Header="Refresh Now" Command="{Binding ToggleConnectivityCmd}" CommandParameter="false"/> <MenuItem IsCheckable="True" IsChecked="{Binding ConnectState, Converter={StaticResource isFailedConverter}}" CommandParameter="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=IsChecked}" Header="Work Offline" Command="{Binding ToggleConnectivityCmd}"/> </ContextMenu> </cdic:SplitButton.ContextMenu> <cdic:SplitButton.Content> <StackPanel Orientation="Horizontal"> <Image x:Name="img" Source="{Binding ConnectState, Converter={StaticResource imageConverter}}" Width="16" Height="16" HorizontalAlignment="Center" VerticalAlignment="Center"/> <TextBlock Text="{Binding ConnectState}" Padding="3,0,0,0"/> </StackPanel> </cdic:SplitButton.Content> </cdic:SplitButton> </StatusBarItem> </StatusBar> </Grid> The error just seems to have come out of no where. Any ideas? TIA.

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  • Getting multiple checkboxes from FormCollection element

    - by FreshCode
    Given multiple HTML checkboxes: <input type="checkbox" name="catIDs" value="1" /> <input type="checkbox" name="catIDs" value="2" /> ... <input type="checkbox" name="catIDs" value="100" /> How do I retrive an array of integers from a FormCollection in an action: public ActionResult Edit(FormCollection form) { int [] catIDs = (IEnumerable<int>)form["catIDs"]; // ??? // alternatively: foreach (int catID in form["catIDs"] as *SOME CAST*) { // ... } return View(); } Note: I read the related questions and I don't want to change my action parameters, eg. Edit(int [] catIDs).

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  • BroadCast Messages to multiple client on the same machine

    - by Christopher Chase
    I need to have a server on one machine that broadcasts a message sever second or so, Kind of like a service discovery. The message needs to be received by multiple client processes that could be on the same machine or different machines. Im using delphi7, with indy 9.0.18 where im stuck is if i should be using UDP or IP MultiCast or if its even possible... Ive managed to get it to work with IP Multi Cast with one client per machine, but even after many trys with different bindings.. max/min ports etc, i cant seem to find a solution.

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  • How do you make a Factory that can return derived types?

    - by Seth Spearman
    I have created a factory class called AlarmFactory as such... 1 class AlarmFactory 2 { 3 public static Alarm GetAlarm(AlarmTypes alarmType) //factory ensures that correct alarm is returned and right func pointer for trigger creator. 4 { 5 switch (alarmType) 6 { 7 case AlarmTypes.Heartbeat: 8 HeartbeatAlarm alarm = HeartbeatAlarm.GetAlarm(); 9 alarm.CreateTriggerFunction = QuartzAlarmScheduler.CreateMinutelyTrigger; 10 return alarm; 11 12 break; 13 default: 14 15 break; 16 } 17 } 18 } Heartbeat alarm is derived from Alarm. I am getting a compile error "cannot implicitly convert type...An explicit conversion exists (are you missing a cast?)". How do I set this up to return a derived type? Seth

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  • C#: How to set AsyncWaitHandle in Compact Framework?

    - by Thorsten Dittmar
    Hi, I'm using a TcpClient in one of my Compact Framework 2.0 applications. I want to receive some information from a TCP server. As the Compact Framework does not support the timeout mechanisms of the "large" framework, I'm trying to implement my own timeout-thing. Basically, I want to do the following: IAsyncResult result = client.BeginRead(buffer, 0, size, ..., stream); if (!result.AsyncWaitHandle.WaitOne(5000, false)) // Handle timeout private void ReceiveFinished(IAsyncResult ar) { NetworkStream stream = (NetworkStream)ar.AsyncState; int numBytes = stream.EndRead(ar); // SIGNAL IASYNCRESULT.ASYNCWAITHANDLE HERE ... HOW?? } I'd like to call Set for the IAsyncResult.AsyncWaitHandle, but it doesn't have such a method and I don't know which implementation to cast it to. How do I set the wait handle? Or is it automatically set by calling EndRead? The documentation suggests that I'd have to call Set myself... Thanks for any help!

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  • Convert Java Arraylist return from Java WebService to C# Arraylist

    - by TTCG
    In my C# program, I would like to consume the Java Web Service Method which replies the java.Util.ArrayList. I don't know how to convert the Java ArrayList to C# ArrayList. This is Java Codes @WebMethod @WebResult(name = "GetLastMessages") @SuppressWarnings("unchecked") public ArrayList<Message> getLastMessages(@WebParam(name = "MessageCount")int count) { .... .... return messages; } This is C# Codes MessagesService.MessagesService service = new MessagesService.MessagesService(); System.Collections.ArrayList arr = (System.Collections.ArrayList)service.getLastMessages(10); I got the following Error in C# Cannot convert type 'WindowsFormsApplication1.MessagesService.arrayList' to 'System.Collections.ArrayList' How can I cast these Java ArrayList to C# ArrayList

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  • C# inheritance XmlSerializer

    - by ikurtz
    greetngs, i have two classes: [Serializable] public class FireGridUnit { public GridUnit FireGridLocation { get; set; } } [Serializable] public class FireResult: FireGridUnit { public bool Hit { get; set; } public bool ShipDestroyed { get; set; } public Ship.ValidShips DestroyedShipType {get; set;} public bool Win { get; set; } } as you see FireResult inherits FireGrdUnit. in my code when i try to use them i get a runtime error: Unable to cast object of type 'NietzscheBattleships.FireGridUnit' to type 'NietzscheBattleships.FireResult'. is this because if i am serializing the class has to be independant ie not be inherited? many thanks.

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  • C#: Semantics for generics?

    - by Rosarch
    I have a list: private readonly IList<IList<GameObjectController>> removeTargets; PickUp inherits from GameObjectController. But when I try this: public IList<PickUp> Inventory // ... gameObjectManager.MoveFromListToWorld(this, user.Model.Inventory); I get a compiler error: cannot convert from 'System.Collections.Generic.IList' to 'System.Collections.Generic.IList' Why does this occur? Shouldn't this be fine, since PickUp is a subclass of GameObjectController? Do I need something like Java's Map<E extends GameObjectController>? Earlier, I was having a similar problem, where I was trying to implicitly cast inventory from an IList to an ICollection. Is this the same problem?

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  • Using Moq at Blend design time

    - by adrian hara
    This might be a bit out there, but suppose I want to use Moq in a ViewModel to create some design time data, like so: public class SomeViewModel { public SomeViewModel(ISomeDependency dependency) { if (IsInDesignMode) { var mock = new Mock<ISomeDependency>(); dependency = mock.Object; // this throws! } } } The mock could be set up to do some stuff, but you get the idea. My problem is that at design-time in Blend, this code throws an InvalidCastException, with the message along the lines of "Unable to cast object of type 'Castle.Proxies.ISomeDependencyProxy2b3a8f3188284ff0b1129bdf3d50d3fc' to type 'ISomeDependency'." While this doesn't necessarily look to be Moq related but Castle related, I hope the Moq example helps ;) Any idea why that is? Thanks!

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  • How to do regex HTML tag replace in SQL Server?

    - by timmerk
    I have a table in SQL Server 2005 with hundreds of rows with HTML content. Some of the content has HTML like: <span class=heading-2>Directions</span> where "Directions" changes depending on page name. I need to change all the <span class=heading-2> and </span> tags to <h2> and </h2> tags. I wrote this query to do content changes in the past, but it doesn't work for my current problem because of the ending HTML tag: Update ContentManager Set ContentManager.Content = replace(Cast(ContentManager.Content AS NVARCHAR(Max)), 'old text', 'new text') Does anyone know how I could accomplish the span to h2 replacing purely in T-SQL? Everything I found showed I would have to do CLR integration. Thanks!

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  • What is the C# equivalent of this Excel VBA code for Shapes?

    - by code4life
    This is the VBA code for an Excel template, which I'm trying to convert to C# in a VSTO project I'm working on. By the way, it's a VSTO add-in: Dim addedShapes() As Variant ReDim addedShapes(1) addedShapes(1) = aBracket.Name ReDim Preserve addedShapes(UBound(addedShapes) + 1) addedShapes(UBound(addedShapes)) = "unique2" Set tmpShape = Me.Shapes.Range(addedShapes).Group At this point, I'm stumped by the addedShapes(), not sure what this is all about. Update: Matti mentioned that addedShapes() represents a variant array in VBA. So now I'm wondering what the contents of addedShapes() should be. Would this be the correct way to call the Shapes.Range() call in C#? List<string> addedShapes = new List<string>(); ... Shape tmpShape = worksheet.Shapes.get_Range (addedShapes.Cast<object>().ToArray()).Group(); I'd appreciate anyone who's worked with VBA and C# willing to make a comment on my question & problem!

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  • _mask and Rails

    - by Eric Koslow
    So I am trying to get the cancan gem to work with my rails 3 app and I've hit a problem. I tried to copy the code that Ryan Bates (the creator of the gem) used in his screen cast, but I get an error saying that roles_mask is not a method. I figure that the _mask method was removed from Ruby/Rails at some point, and I'm now wondering what is the replacement. Here's the code in my user.rb model: named_scope :with_role, lambda { |role| {:conditions => "roles_mask & #{2**ROLES.index(role.to_s)} > 0 "} } ROLES = %w[admin student principal admissions] def roles=(roles) self.roles_mask = (roles & ROLES).map { |r| 2**ROLES.index(r) }.sum end def roles ROLES.reject { |r| ((roles_mask || 0) & 2**ROLES.index(r)).zero? } end def role? roles.include? role.to_s end def role_symbols roles.map(&:to_sym) end I'm using Rails 3 and Ruby 1.9.2dev Thank you

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  • Using URL Routing for Web Forms with .ashx files

    - by RandomBen
    I am developing a .NET 3.5 Web Forms based website that uses URL Routing. So far I have created a few routes and I have had no issue. I now have a .ashx file that is going to handle sending .pdf files from a table in SQL Server to the website when someone clicks on a link. Normally when I create a Handler it would look like this: return BuildManager.CreateInstanceFromVirtualPath("~/ViewItem.aspx", typeof(Page)) as Page; For my .ashx file I tried: return BuildManager.CreateInstanceFromVirtualPath("~/FileServer.ashx", typeof(Page)) as Page; This doesn't work though because fileserver.ashx is not a page so casting it as typeof(Page)) as Page is going to fail. What do I cast the VirtualPath as instead of Page or is there some other way I should be doing this.

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  • Type of object returned by an input from a web page

    - by controlfreak123
    I'm attempting to upload a file into a jsp and then use the file in some other code. My problem is that it comes into the servlet as an Object via the request.getAttribute() call so I don't know what to cast it to. I have this code so far to try and test what it is but I'm getting a NullPointerException. PrintWriter out = response.getWriter(); out.println(request.getAttribute("file1").getClass()); Is my understanding of whats going on flawed or am I just coding it up wrong?

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