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  • .NET Declarative Security: Why is SecurityAction.Deny impossible to work with?

    - by rally25rs
    I've been messing with this for about a day and a half now sifting through .NET reflector and MSDN docs, and can't figure anything out... As it stands in the .NET framework, you can demand that the current Principal belong to a role to be able to execute a method by marking a method like this: [PrincipalPermission(SecurityAction.Demand, Role = "CanEdit")] public void Save() { ... } I am working with an existing security model that already has a "ReadOnly" role defined, so I need to do exactly the opposite of above... block the Save() method if a user is in the "ReadOnly" role. No problem, right? just flip the SecurityAction to .Deny: [PrincipalPermission(SecurityAction.Deny, Role = "ReadOnly")] public void Save() { ... } Well, it turns out that this does nothing at all. The method still runs fine. It seems that the PrincipalPermissionAttribute defines: public override IPermission CreatePermission() But when the attribute is set to SecurityAction.Deny, this method is never called, so no IPermission object is ever created. Does anyone know of a way to get .Deny to work? I've been trying to make a custom secutiry attribute, but even that doesn't work. I tried to get tricky and do: public class MyPermissionAttribute : CodeAccessSecurityAttribute { private SecurityAction securityAction; public MyPermissionAttribute(SecurityAction action) : base(SecurityAction.Demand) { if (action != SecurityAction.Demand && action != SecurityAction.Deny) throw new ArgumentException("Unsupported SecurityAction. Only Demand and Deny are supported."); this.securityAction = action; } public override IPermission CreatePermission() { // do something based on the SecurityAction... } } Notice my attribute constructor always passes SecurityAction.Demand, which is the one action that would work previously. However, even in this case, the CreatePermission() method is still only called when the attribute is set to .Demand, and not .Deny! Maybe the runtime is actually checking the attribute instead of the SecurityAction passed to the CodeAccessSecurityAttribute constructor? I'm not sure what else to try here... anyone have any ideas? You wouldn't think it would be that hard to deny method access based on a role, instead of only demanding it. It really disturbed me that the default PrincipalPermission appears from within an IDE like it would be just fine doing a .Deny, and there is like a 1-liner in the MSDN docs that hint that it won't work. You would think the PrincipalPermissionAttribute constructor would throw an exception immediately if anything other that .Demand is specified, since that could create a big security hole! I never would have realized that .Deny does nothing at all if I hadn't been unit testing! Again, all this stems from having to deal with an existing security model that has a "ReadOnly" role that needs to be denied access, instead of doing it the other way around, where I cna just grant access to a role. Thanks for any help! Quick followup: I can actually make my custom attribute work by doing this: public class MyPermissionAttribute : CodeAccessSecurityAttribute { public SecurityAction SecurityAction { get; set; } public MyPermissionAttribute(SecurityAction action) : base(action) { } public override IPermission CreatePermission() { switch(this.SecurityAction) { ... } // check Demand or Deny } } And decorating the method: [MyPermission(SecurityAction.Demand, SecurityAction = SecurityAction.Deny, Role = "ReadOnly")] public void Save() { ... } But that is terribly ugly, since I'm specifying both Demand and Deny in the same attribute. But it does work... Another interesting note: My custom class extends CodeAccessSecurityAttribute, which in turn only extends SecurityAttribute. If I cnage my custom class to directly extend SecurityAttribute, then nothing at all works. So it seems the runtime is definately looking for only CodeAccessSecurityAttribute instances in the metadata, and does something funny with the SecurityAction specified, even if a custom constructor overrides it.

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  • "Invalid signature file" when attempting to run a .jar

    - by oskar
    My java program is packaged in a jar file and makes use of an external jar library, bouncy castle. My code compiles fine, but running the jar leads to the following error: Exception in thread "main" java.lang.SecurityException: Invalid signature file digest for Manifest main attributes I've googled for over an hour searching for an explanation and found very little of value. If anyone has seen this error before and could offer some help, I would be obliged.

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  • F#'s fshtmldoc.exe using Mono/OS X

    - by John Clements
    This is doubtless something obvious, but downloading the F# PowerPack from codeplex and running fshtmldoc produces this error: clements$ mono ./fshtmldoc.exe FSharp.PowerPack.dll Processing 'FSharp.PowerPack.dll'... Unexpected failure while writing HTML docs: An exception was thrown by the type initializer for Microsoft.FSharp.Metadata.AssemblyLoader This is using mono 2.6.3, F# 2.0 1.9.9.9, & OS X 10.6.3 on a 32-bit intel processor. Any help would be appreciated. Many thanks, John Clements (repost from powerpack online discussion group--no response there)

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  • Debugging HeapReAlloc failure using GetExceptionCode

    - by Becky Franklin
    Hey folks, Been messing about with this all day and haven't got anywhere so I'm hoping someone can help me - I have a HeapReAlloc method failing with the error ACCESS_VIOLATION, but I'm unsure how to implement a further check using GetExceptionCode as it uses try/catch or exception or something - can someone give me a quick example of how I can use it to narrow down this failure, please? Thanks very much, Becky

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  • Can I enable/disable breaking on Exceptions programatically?

    - by Tony Lambert
    I want to be able to break on Exceptions when debugging... like in Visual Studio 2008's Menu Debug/Exception Dialog, except my program has many valid exceptions before I get to the bit I wish to debug. So instead of manually enabling and disabling it using the dialog every time is it possible to do it automatically with a #pragma or some other method so it only happens in a specific piece of code?

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  • How to cast a STRING to a GUID

    - by GIbboK
    Hi, I need cast a String to a Guid. I am using this code but string myUserIdContent = ((Label)row.FindControl("uxUserIdDisplayer")).Text; Guid myGuidUserId = new Guid(myUserIdContent); // PROBLEM HERE MembershipUser mySelectedUser = Membership.GetUser(myGuidUserId); I receive this error Exception Details: System.FormatException: Unrecognized Guid format. ANy other ways to do it? thanks

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  • emulator crashes

    - by Dave
    I am setting up an Android environment for the first time on Eclipse. I have many years of Eclipse experience, but new to Android. This is being done on an Apple Mac Mini, running MacOSX 10.6.3. I am using the latest Eclipse Classic, version 3.5.2. I am trying to get the tiny hello world program running. When I run it, I get the following in the console window of Eclipse: [2010-06-12 13:48:08 - HelloAndroid] Automatic Target Mode: launching new emulator with compatible AVD 'Android2.2AVD' [2010-06-12 13:48:08 - HelloAndroid] Launching a new emulator with Virtual Device 'Android2.2AVD' [2010-06-12 13:48:11 - HelloAndroid] New emulator found: emulator-5554 [2010-06-12 13:48:11 - HelloAndroid] Waiting for HOME ('android.process.acore') to be launched... [2010-06-12 13:48:12 - Emulator] 2010-06-12 13:48:12.783 emulator[50495:903] Warning once: This application, or a library it uses, is using NSQuickDrawView, which has been deprecated. Apps should cease use of QuickDraw and move to Quartz. [2010-06-12 13:48:19 - HelloAndroid] emulator-5554 disconnected! Cancelling 'com.example.helloandroid.HelloAndroid activity launch'! The emulator crashes with the following info. I have followed all the instructions for running the hello world sample. Anyone have any ideas? Process: emulator [50398] Path: /Users/jeremy/android-sdk-mac_86/tools/emulator Identifier: emulator Version: ??? (???) Code Type: X86 (Native) Parent Process: eclipse [50388] Date/Time: 2010-06-12 13:28:38.595 -0400 OS Version: Mac OS X 10.6.3 (10D573) Report Version: 6 Interval Since Last Report: 363037 sec Crashes Since Last Report: 9 Per-App Crashes Since Last Report: 7 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x00000000007fd000 Crashed Thread: 4 Thread 0: Dispatch queue: com.apple.main-thread 0 emulator 0x000eed4e helper_set_cp15 + 30 Thread 1: 0 libSystem.B.dylib 0x9020bbd2 __workq_kernreturn + 10 1 libSystem.B.dylib 0x9020c168 _pthread_wqthread + 941 2 libSystem.B.dylib 0x9020bd86 start_wqthread + 30 Thread 2: Dispatch queue: com.apple.libdispatch-manager 0 libSystem.B.dylib 0x9020cb42 kevent + 10 1 libSystem.B.dylib 0x9020d25c _dispatch_mgr_invoke + 215 2 libSystem.B.dylib 0x9020c719 _dispatch_queue_invoke + 163 3 libSystem.B.dylib 0x9020c4be _dispatch_worker_thread2 + 240 4 libSystem.B.dylib 0x9020bf41 _pthread_wqthread + 390 5 libSystem.B.dylib 0x9020bd86 start_wqthread + 30 Thread 3: 0 libSystem.B.dylib 0x901e635a semaphore_timedwait_signal_trap + 10 1 libSystem.B.dylib 0x90213ea1 _pthread_cond_wait + 1066 2 libSystem.B.dylib 0x90242a28 pthread_cond_timedwait_relative_np + 47 3 com.apple.audio.CoreAudio 0x9056f965 CAGuard::WaitFor(unsigned long long) + 219 4 com.apple.audio.CoreAudio 0x90572997 CAGuard::WaitUntil(unsigned long long) + 289 5 com.apple.audio.CoreAudio 0x90570294 HP_IOThread::WorkLoop() + 1892 6 com.apple.audio.CoreAudio 0x9056fb2b HP_IOThread::ThreadEntry(HP_IOThread*) + 17 7 com.apple.audio.CoreAudio 0x9056fa42 CAPThread::Entry(CAPThread*) + 140 8 libSystem.B.dylib 0x90213a19 _pthread_start + 345 9 libSystem.B.dylib 0x9021389e thread_start + 34 Thread 4 Crashed: 0 emulator 0x00040380 audioInDeviceIOProc + 96 Thread 4 crashed with X86 Thread State (32-bit): eax: 0x00000000 ebx: 0x007fd000 ecx: 0x000001fe edx: 0x0198f3f0 edi: 0x00000200 esi: 0x01119850 ebp: 0x01119800 esp: 0xb020fad0 ss: 0x0000001f efl: 0x00010212 eip: 0x00040380 cs: 0x00000017 ds: 0x0000001f es: 0x0000001f fs: 0x0000001f gs: 0x00000037 cr2: 0x007fd000

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  • App.Config Best Practices ?

    - by abmv
    Normally when you have a application configuration file in your application and your application is expected to read from it. Is it good to check initially at start up if this file exists and raise an error and not to proceed at all ? (Worse case senarios) Or leave it to the unhandled exception manager to handle it and shut down the application? (WPF/Winforms etc)

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  • Resizing an image using mouse dragging (C#)

    - by Gaax
    Hi all. I'm having some trouble resizing an image just by dragging the mouse. I found an average resize method and now am trying to modify it to use the mouse instead of given values. The way I'm doing it makes sense to me but maybe you guys can give me some better ideas. I'm basically using the distance between the current location of the mouse and the previous location of the mouse as the scaling factor. If the distance between the current mouse location and the center of of the image is less than the distance between previous mouse location and the center of the image then the image gets smaller, and vice-versa. With the code below I'm getting an Argument Exception (invalid parameter) when creating the new bitmap with the new height and width and I really don't understand why... any ideas? private static Image resizeImage(Image imgToResize, System.Drawing.Point prevMouseLoc, System.Drawing.Point currentMouseLoc) { int sourceWidth = imgToResize.Width; int sourceHeight = imgToResize.Height; float dCurrCent = 0; //Distance between current mouse location and the center of the image float dPrevCent = 0; //Distance between previous mouse location and the center of the image float dCurrPrev = 0; //Distance between current mouse location and the previous mouse location int sign = 1; System.Drawing.Point imgCenter = new System.Drawing.Point(); float nPercent = 0; imgCenter.X = imgToResize.Width / 2; imgCenter.Y = imgToResize.Height / 2; // Calculating the distance between the current mouse location and the center of the image dCurrCent = (float)Math.Sqrt(Math.Pow(currentMouseLoc.X - imgCenter.X, 2) + Math.Pow(currentMouseLoc.Y - imgCenter.Y, 2)); // Calculating the distance between the previous mouse location and the center of the image dPrevCent = (float)Math.Sqrt(Math.Pow(prevMouseLoc.XimgCenter.X,2) + Math.Pow(prevMouseLoc.Y - imgCenter.Y, 2)); // Calculating the sign value if (dCurrCent >= dPrevCent) { sign = 1; } else { sign = -1; } nPercent = sign * (float)Math.Sqrt(Math.Pow(currentMouseLoc.X - prevMouseLoc.X, 2) + Math.Pow(currentMouseLoc.Y - prevMouseLoc.Y, 2)); int destWidth = (int)(sourceWidth * nPercent); int destHeight = (int)(sourceHeight * nPercent); Bitmap b = new Bitmap(destWidth, destHeight); // exception thrown here Graphics g = Graphics.FromImage((Image)b); g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.DrawImage(imgToResize, 0, 0, destWidth, destHeight); g.Dispose(); return (Image)b; }

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  • Instantiating ServiceController takes sometimes too much time

    - by mrbamboo
    Hi, i am creating an instance of ServiceController using a remote/local machine name and the name of the service. When I type sth. like stackoverflow.com as machine name the contructor blocks for a long time and returns an exception. Example: string MachineName = "stackoverflow.com" ServiceController("RemoteRegistry", MachineName ); How can I set here a kind of timeout to cancel this process?

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  • Turn off iPhone/Safari input element rounding

    - by Alex
    My website renders well on the iPhone/Safari browser, with one exception: My text input fields have a weird rounded style which doesn't look good at all with the rest of my website. Is there a way to instruct Safari (via CSS or metadata) not to round the input fields and render them rectangular as intended?

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  • How to output LogCat to Console?

    - by Shooshpanchick
    Is there a way to make LogCat's output to appear in Console view in Eclipse? LogCat view is much less convenient that Console, because it's hard to see long messages in it (they are trimmed by column border) and there are no clickable highlighting in exception stack traces to quickly navigate to source of error.

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  • Delphi / ADO : how to get result of Execute() ?

    - by mawg
    I have declared AdoConnection : TADOConnection; and successfully connected to the default "mysql" database (so, no need to pass that code). Now, taking baby steps to learn, I would like to AdoConnection.Execute('SHOW DATABASES', cmdText); which seems to work ok, in the sense that it doesn't throw an exception, but I am such a n00b that I don't know how I can examine the result of the command :-/ Halp!

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  • Xml reader creation problem

    - by diver-d
    Hi there, I am having some troubles trying to allow my WCF service to process a larger string. I keep getting the following error. The maximum string content length quota (8192) has been exceeded while reading XML data. This quota may be increased by changing the MaxStringContentLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader My App.config looks like this <?xml version="1.0" encoding="utf-8" ?> <configuration> <system.web> <compilation debug="true" /> </system.web> <!-- When deploying the service library project, the content of the config file must be added to the host's app.config file. System.Configuration does not support config files for libraries. --> <system.serviceModel> <bindings> <wsHttpBinding> <binding name="wsHttpBindingSettings" maxReceivedMessageSize="2147483647"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> </binding> </wsHttpBinding> </bindings> <services> <service name="WCFLongString.Service1" > <endpoint address="" binding="wsHttpBinding" contract="WCFLongString.IService1" bindingConfiguration="wsHttpBindingSettings"> <identity> <dns value="localhost" /> </identity> </endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="http://localhost:8732/Design_Time_Addresses/WCFLongString/Service1/" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="True"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="False" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> Am I missing something here?

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  • Publishing WCF .NET 3.5 to IIS 6 (Windows Server 2003)

    - by Adam
    I've been developing a WCF web service using .NET 3.5 with IIS7 and it works perfectly on my local computer. I tried publishing it to a server running IIS 6 and even though I can view the WSDL in my browser, the client application doesn't seem to be connecting to it correctly. I launched a packet sniffing app (Charles Proxy) and the response for the first message comes back to the client empty (0 bytes). Every message after the first one times out. The WCF service is part of a larger application that uses ASP .NET 3.5. That application has been working fine on IIS 6 for awhile now so I think it's something specific to WCF. I also tried throwing an exception in the SVC file to see if it made it that far and the exception never got thrown so I have a feeling it's something more low level that's not working. Any thoughts? Is there anything I need to install on the IIS5 server? If so how am I still able to view the WSDL in my browser? The service is being consumed via an SVC file using basicHttpBinding Here's the meat of the Web.Config (let me know if you need any other part of it): <system.net> <defaultProxy> <proxy usesystemdefault="False" proxyaddress="http://127.0.0.1:80" bypassonlocal="True"/> </defaultProxy> </system.net> ... <system.serviceModel> <services> <service name="Nexternal.Service.XMLTools.VNService" behaviorConfiguration="VNServiceBehavior"> <!--The first endpoint would be picked up from the confirg this shows how the config can be overriden with the service host--> <endpoint address="" binding="basicHttpBinding" contract="Nexternal.Service.XMLTools.IVNService" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" name="mexHttpBinding" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="VNServiceBehavior"> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="true" /> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> </system.serviceModel>

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  • System.ServiceModel.Syndication authentication

    - by Enriquev
    How can I use authentication with System.ServiceModel.Syndication to read a private RSS? The code I use right now just returns forbidden. I have tried adding &PASS=password and &PASSWORD=password to the URL but it doesnt help. try { using (XmlReader reader = XmlReader.Create("http://trac:8080/Project/report/7?format=rss&USER=enr")) { tracFeed = SyndicationFeed.Load(reader); } } catch (Exception ex) { MessageBox.Show(ex.Message); }

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  • How I can get rid of None values in dictionary?

    - by Vojtech R.
    Something like: for (a,b) in kwargs.iteritems(): if not b : del kwargs[a] This code raise exception because changing of dictionary when iterating. I discover only non pretty solution with another dictionary: res ={} res.update((a,b) for a,b in kwargs.iteritems() if b is not None) Thanks

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  • zend framework 2 autentification using DbTable failure

    - by josepmra
    I have followed the zend instructions for implement my web Authentication using a database table. It's exactly the same code, but when render the page, the following exceptions appears: Zend\Authentication\Adapter\Exception\RuntimeException File: C:\xampp\htdocs\pfc\vendor\ZF2\library\Zend\Authentication\Adapter\DbTable.php Mensaje: The supplied parameters to DbTable failed to produce a valid sql statement, please check table and column names for validity. produced by this other: Zend\Db\Adapter\Exception\InvalidQueryException File: C:\xampp\htdocs\pfc\vendor\ZF2\library\Zend\Db\Adapter\Driver\Mysqli\Statement.php Mensaje: Statement couldn't be produced with sql: SELECT `users`.*, (CASE WHEN `password` = ? THEN 1 ELSE 0 END) AS `zend_auth_credential_match` FROM `users` WHERE `mail` = ? Seems to be that Statement.php can not execute the sql of above, but I send the sql by phpmyadmin replacing the ? for strings and work ok. I am sure that $dbAdapter works ok also because I have tested it and the columns name are "mail" and "password". This in my code, also I put the $dbAdapter test code. $dbAdapter = new DbAdapter(array( //This DbAdapter Work ok sure!! 'driver' => 'Mysqli', 'database' => 'securedraw', 'username' => 'root', 'password' => '' )); $fp = function($name) use ($dbAdapter) { return $dbAdapter->driver->formatParameterName($name);}; $sql = 'SELECT * FROM ' . $qi('users') . ' WHERE id = ' . $fp('id'); $statement = $dbAdapter->query($sql); $parameters = array('id' => 1); $sqlResult = $statement->execute($parameters); $row = $sqlResult->current(); $mail = $row['mail']; $password = $row['password']; //until here test $dbAdapter exitly!! //Start the auth proccess!! $authAdapter = new AuthDbTableAdapter($dbAdapter); $authAdapter->setTableName('users') ->setIdentityColumn('mail') ->setCredentialColumn('password'); $authAdapter->setIdentity('josep') ->setCredential('josep'); $authResult = $authAdapter->authenticate(); //This is the fail method!!!

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  • Does a custom DataGridView Cell have to have a parameterless constructor?

    - by clawson
    I want to slight variation of the custom cell code example from the MS website How to: Customize Cells and Columns in the Windows Forms DataGridView Control by Extending Their Behavior and Appearance by passing an argument to the custom cell constructor. Public Sub New(ByVal a As Object) End Sub but then when I run the code it throws and exception MissingMethodException occured No parameterless constructor defined for this object. Does this mean that custom cells must have a parameterless constructor? Thanks.

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  • Django-ckeditor inline error

    - by ad3w
    I'm using FeinCMS (https://github.com/feincms/feincms/) and django-ckeditor with file upload support (https://github.com/shaunsephton/django-ckeditor). I create a FeinCMS content type for RichTextField: class RichContent(models.Model): text = RichTextField(_('text')) class Meta: abstract = True verbose_name = _('Rich Text') verbose_name_plural =_('Rich Text') def render(self, **kwargs): context_instance = kwargs.get('context_instance') return render_to_string('content/page/rich_content.html', { 'page': self, }, context_instance=context_instance) But in Django admin, when i select 'Rich Text' and press 'Go', get this error in firebug console: uncaught exception: [CKEDITOR.editor] The instance "id_richcontent_set-__prefix__-text" already exists. And textarea in ckeditor do not editable.

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  • Unselect Databound Combobox Winforms .NET

    - by joedotnot
    The problem: combobox is databound to a DataView, first item in the dataview is DataRowView whose fields are DBNull.Value; Combo DropdownStyle = ComboBoxStyle.DropDownList Loads fine, displays fine, selects fine, problem is to Unselect via code. Setting the SelectedIndex to 0 throws an exception. (Setting to -1 is a no-no as per msdn doco that says dont set SelectedIndex=-1 if databound) So how to unselect without throwing an exception ? For now i wrapped it into a try/catch to just ignore the error! EDIT: As asked by Hubeza, i worked on sample code to post. Did a stripped down version of the original code in C# (original is in VB.NET) and could NOT reproduce it either. Converted to VB.NET and could NOT reproduce it either ! In other words, SelectedIndex = 0 does work in the stripped down version! Currently further investigating what else could be wrong with the original code. EDIT2: Case Closed. Call me a stupid fool if you like, and apologies for wasting anyone's time - The error was originating from MyComboBox_SelectedIndexChanged event, which i neglected to check ! May as well post the sample in case anyone finds useful. private void LoadComboMethod() { DataTable dtFruit = new DataTable("FruitTable"); //define columns DataColumn colID = new DataColumn(); colID.DataType = typeof(Int32); //VB.NET GetType(Int32) colID.ColumnName = "ID"; DataColumn colDesc = new DataColumn(); colDesc.DataType = typeof(String); colDesc.ColumnName = "Description"; //add columns to table dtFruit.Columns.AddRange(new DataColumn[] { colID, colDesc }); //add rows DataRow row = dtFruit.NewRow(); row[colID] = 1; row[colDesc] = "Apples"; dtFruit.Rows.Add(row); row = dtFruit.NewRow(); row[colID] = 1; row[colDesc] = "Bananas"; dtFruit.Rows.Add(row); row = dtFruit.NewRow(); row[colID] = 1; row[colDesc] = "Oranges"; dtFruit.Rows.Add(row); //add extra blank row. DataRowView drv = dtFruit.DefaultView.AddNew(); drv.EndEdit(); //Bind combo box DataView dv = new DataView(dtFruit); dv.Sort = "ID ASC"; //ensure blank item on top cboFruit.DataSource = dv; cboFruit.DisplayMember = "Description"; cboFruit.ValueMember = "ID"; } private void UnselectComboMethod() { if (cboFruit.SelectedIndex > 0) { cboFruit.SelectedIndex = 0; } else { MessageBox.Show("no fruit selected"); } }

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  • strange UnindexedFileException for Expression Encoder MediaItem

    - by George2
    Hello everyone, When I use the following statement to create a new instance of MediaItem (VSTS 2008 + .Net 3.5 + C# + Windows 7), and I met with the following exception, any ideas what is wrong? I have tried with other wmv files, and there are no such issues. BTW: I am using Expression Encoder 3 SDK. MediaItem video = new MediaItem("1.wmv"); Microsoft.Expression.Encoder.UnindexedFileException {"Cannot seek file."} thanks in advance, George

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  • webservice request issue with dynamic request inputs

    - by nanda
    try { const string siteURL = "http://ops.epo.org/2.6.1/soap-services/document-retrieval"; const string docRequest = "<soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema'><soap:Body><document-retrieval id='EP 1000000A1 I ' page-number='1' document-format='SINGLE_PAGE_PDF' system='ops.epo.org' xmlns='http://ops.epo.org' /></soap:Body></soap:Envelope>"; var request = (HttpWebRequest)WebRequest.Create(siteURL); request.Method = "POST"; request.Headers.Add("SOAPAction", "\"document-retrieval\""); request.ContentType = " text/xml; charset=utf-8"; Stream stm = request.GetRequestStream(); byte[] binaryRequest = Encoding.UTF8.GetBytes(docRequest); stm.Write(binaryRequest, 0, docRequest.Length); stm.Flush(); stm.Close(); var memoryStream = new MemoryStream(); WebResponse resp = request.GetResponse(); var buffer = new byte[4096]; Stream responseStream = resp.GetResponseStream(); { int count; do { count = responseStream.Read(buffer, 0, buffer.Length); memoryStream.Write(buffer, 0, count); } while (count != 0); } resp.Close(); byte[] memoryBuffer = memoryStream.ToArray(); System.IO.File.WriteAllBytes(@"E:\sample12.pdf", memoryBuffer); } catch (Exception ex) { throw ex; } The code above is to retrieve the pdf webresponse.It works fine as long as the request remains canstant, const string docRequest = "<soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema'><soap:Body><document-retrieval id='EP 1000000A1 I ' page-number='1' document-format='SINGLE_PAGE_PDF' system='ops.epo.org' xmlns='http://ops.epo.org' /></soap:Body></soap:Envelope>"; but how to retrieve the same with dynamic requests. When the above code is changed to accept dynamic inputs like, [WebMethod] public string DocumentRetrivalPDF(string docid, string pageno, string docFormat, string fileName) { try { ........ ....... string docRequest = "<soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema'><soap:Body><document-retrieval id=" + docid + " page-number=" + pageno + " document-format=" + docFormat + " system='ops.epo.org' xmlns='http://ops.epo.org' /></soap:Body></soap:Envelope>"; ...... ........ return "responseTxt"; } catch (Exception ex) { return ex.Message; } } It return an "INTERNAL SERVER ERROR:500" can anybody help me on this???

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