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  • .NET Regular expressions on bytes instead of chars

    - by brickner
    Hi, I'm trying to do some parsing that will be easier using regular expressions. The input is an array (or enumeration) of bytes. I don't want to convert the bytes to chars for the following reasons: Computation efficiency Memory consumption efficiency Some non-printable bytes might be complex to convert to chars. Not all the bytes are printable. So I can't use Regex. The only solution I know, is using Boost.Regex (which works on bytes - C chars), but this is a C++ library that wrapping using C++/CLI will take considerable work. How can I use regular expressions on bytes in .NET directly, without working with .NET strings and chars? Thank you.

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  • ASP.NET connection pool question

    - by James Evans
    Does the same connection string used on two different physical servers hosting different web applications that talk to the same database draw connections from the same connection pool? Or are pooled connections confined to at the application level? I ask because I inherited a 7 year old .NET 1.1 web application which is riddled with in-line SQL, unclosed and undisposed sql connection and datareader objects. Recently, I was tasked to write a small web app that is hosted on another server and talks to the same database and therefore used the same database connection string. I created a LINQ object to read and write the one table required by the app. Now the original .NET 1.1 app is throwing exceptions like "Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached." Maybe these are unreleated, but wanted to get your opinions to make sure I cover all my bases. Thanks!

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  • Getting Windows XP colours in .NET

    - by LauraM
    I am trying to get a specific colour used by Windows XP in my .NET application. In Windows XP, if you go the Control Panel in 'category view', on the left hand side you have some 'See Also' options (Windows Update, Help and Support, Other Control Panel Options). The colour I'm trying to get is the light blue background colour shown behind these options. I don't need the hex/RGB value of the colour, as it can change depending on the style settings used on the desktop. My question is - is it possible to programmatically get hold of this colour in a .NET app? The colour doesn't appear to be in SystemColors, although it's very similar to SystemColors.InactiveCaptionText (and I think I can probably get away with using this). I'm just wondering if there is a way to get hold of the exact colour.

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  • Strategies for Error Handling in .NET Web Services

    - by Jarrod
    I have a fairly substantial library of web services built in .NET that I use as a data model for our company web sites. In most .NET applications I use the Global ASAX file for profiling, logging, and creating bug reports for all exceptions thrown by the application. Global ASAX isn't available for web services so I'm curious as to what other strategies people have come up with to work around this limitation. Currently I just do something along these lines: <WebMethod()> _ Public Function MyServiceMethod(ByVal code As Integer) As String Try Return processCode(code) Catch ex As Exception CustomExHandler(ex) 'call a custom function every time to log exceptions Return errorObject End Try End Function Anybody have a better way of doing things besides calling a function inside the Catch?

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  • .NET library for generating javascript?

    - by Rune
    Do you know of a .NET library for generating javascript code? I want to generate javascript code based on information in my .NET application. I would like to be able to create an AST-like datastructure (using C#) and have it turned into valid javascript. I need to be able to create functions, statements, expressions etc., so I need something more than a JSON serializer - but I guess you could think of this as a (very) generalized JSON serializer. Do such libraries exist and if so, could you recommend any? Thank you.

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  • Embedded web server and gui framework for .NET applications

    - by Toad
    Hi, I'm looking for a framework which allows me to manage my application through a webbased GUI (using an embedded webserver) instead of winforms. Something like this: http://www.webtoolkit.eu/wt but then for .NET In my code I should be able to instantiate classes (like buttons, forms etc), and when a user browses to a given port, the app should render it as javascript/ajax etc etc. preferably, when buttons are pushed, a notification in my code should be called. this is a less specific question than another one I posted about extjs. I hope this will attract more viewers since it is more generic Thanks. Update: cassini like solutions don't fit the bill. Since the webbrowser is embedded in my application, there is no need for ASP.NET server side scripts. I would rather have the framework, call functions inside my application when things happen on the page. onButtonClicked() for instance.

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  • How to add custom hooks to controllers in ASP.NET MVC2

    - by Adrian
    Hi, I've just started a new project in ASP.net 4.0 with MVC 2. What I need to be able to do is have a custom hook at the start and end of each action of the controller. e.g. public void Index() { *** call to the start custom hook to externalfile.cs (is empty so does nothing) ViewData["welcomeMessage"] = "Hello World"; *** call to the end custom hook to externalfile.cs (changes "Hello World!" to "Hi World") return View(); } The View then see welcomeMessage as "Hi World" after being changed in the custom hook. The custom hook would need to be in an external file and not change the "core" compiled code. This causes a problem as with my limited knowledge ASP.net MVC has to be compiled. Does anyone have any advice on how this can be achieved? Thanks

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  • Unregistering a COM wrapped .NET assembly

    - by flopdix
    I created a COM exposed .NET 2.0 dll and registered with my windows operating system using 'regasm' and 'gacutil' (in GAC). Then I tried to call this component from my classic ASP page. It worked fine. But, I need to change the functionality of my assembly. I unregistered it again using 'regasm' and 'gacutil' (from GAC) utilities and copied my new .NET DLL and registered again (This time using a new version of the DLL). For some reason, i still have a pointer to my old assembly and new calls to the DLL from ASP page are not working. Any Ideas on what process i need to follow to ensure that all the references to the old version are completely removed? I appreciate any help.

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  • Problem pulling data from website in .NET and C#

    - by Cptcecil
    I have written a web scraping program to go to a list of pages and write all the html to a file. The problem is that when I pull a block of text some of the characters get written as '?'. How do I pull those characters into my text file? Here is my code: string baseUri = String.Format("http://www.rogersmushrooms.com/gallery/loadimage.asp?did={0}&blockName={1}", id.ToString(), name.Trim()); // our third request is for the actual webpage after the login. HttpWebRequest request = (HttpWebRequest)WebRequest.Create(baseUri); request.Method = "GET"; request.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)"; //get the response object, so that we may get the session cookie. HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream()); // and read the response string page = reader.ReadToEnd(); StreamWriter SW; string filename = string.Format("{0}.txt", id.ToString()); SW = File.AppendText("C:\\Share\\" + filename); SW.Write(page); reader.Close(); response.Close();

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  • Google I/O 2010 - Data migration in App Engine

    Google I/O 2010 - Data migration in App Engine Google I/O 2010 - Data migration in App Engine App Engine 201 Matthew Blain Learn about the App Engine bulk loader and see an example of migrating data from an external data source into the app engine datastore--and back out. Do you have data stored in a traditional, relational DB which you'd like to upload to App Engine? This session will teach you how. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 6 0 ratings Time: 44:26 More in Science & Technology

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  • Determine which mouse was clicked (multiple mice devices) in .NET

    - by Morten K
    Hi, I want to detect when my touchpad is clicked! I normally use a usb mouse, so I don't use the touchpad for anything. Instead I'd like to make it possible to perform an action in .NET, when the touchpad is clicked. This way I can use it as a shortcut: One tap and something cool happens. Is this possible, and if yes, any clue how? I'd prefer if it could be working in VB.NET or C#. My theory is that I'd have to make a mousehook, which then somehow determines which device the click is coming from. If the click is determined to be from the touchpad, then cancel the click and doWhatever(). Thanks!

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  • Localization with separate Language folders within Views

    - by Adrian
    I'm trying to have specific folders for each language in Views. (I know this isn't the best way of doing it but it has to be this way for now) e.g. /Views/EN/User/Edit.aspx /Views/US/User/Edit.aspx These would both use the same controller and model but have different Views for each language. In my Global.asax.cs I have routes.MapRoute( "Default", // Route name "{language}/{controller}/{action}/{id}", // URL with parameters new { language = "en", controller = "Logon", action = "Index", id = UrlParameter.Optional }, // Parameter defaults new { language = @"en|us" } // validation ); This works ok but always points to the same View. If I put the path to the Lanagugage folder it works return View("~/Views/EN/User/Edit.aspx"); but clearly this isn't a very nice way to do it. Is there anyway to get MVC to look in the correct language folder? Thanks and again I know this isn't the best way of doing Localization but I can't use resource files.

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  • ASP MVC: Custom Validation Attribute

    - by user323395
    I'm trying to write my own Custom Validation attribute but i'm having some problems. The attribute i'm trying to write is that when a user logs in, the password will be compared against the confirmation password. namespace EventCompanion.Data.Attributes { public class ComparePassword : ValidationAttribute { public string PasswordToCompareWith { get; set; } public override bool IsValid(object value) { if (PasswordToCompareWith == (string)value) { return true; } return false; } } Now my problem is when i'm trying to set the attribute like this in the model file: [Required] [ComparePassword(PasswordToCompareWith=ConfirmPassword)] public string Password { get; set; } [Required] public string ConfirmPassword { get; set; } } I get the following error: Error 1 An object reference is required for the non-static field, method, or property 'Project.Data.Models.GebruikerRegistreerModel.ConfirmPassword.get' It seems that VS is not accepting the confirmpassword in the "PasswordToCompareWith=ConfirmPassword" part Now my question: What am i doing wrong? Thanks in advance!!!

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  • Killing a program if it displays a dialog box (devenv.com running under CruiseControl.net)

    - by Alan Mullett
    I have CruiseControl.net running Visual Studio (2005/2008 - using devenv.com) as we need to build deployment projects (.vdproj). At times, for various reasons devenv decides that even though it was run from the command line, using the devenv.com varient, it still wants to put up a dialog box. Now, as it's running under CruiseControl.net on a remote server this is never seen and the only syptom of this is that the build eventually times out. When the build is still in progress a look at the tasks shows devenv running but not consuming any processor power. Is there a handy utility through which could run devenv.com which basically watches the program it starts up and basically kills it if it dares to display a dialog box of any kind?

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  • Clear Asp.Net cache from outside of application (not using source code)

    - by TheJudge
    Hi, I have a asp.net web application and I'm using cache (HttpRuntime.Cache) to save some stuff from db. I also update db from time to time so that data in db does not match the data in my application's cache. Is there any way how to clear my application's cache without modifying any source code or republishing the page? I tried to restart IIS and to clear browsers cache but nothing helps. Please help.

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  • Protect .NET assemblies from decomplie

    - by Holli
    One if the first things I learned when I started with C# was the most important one. You can decompile any .NET assembly with Reflector or other tools. Many developers are not aware of this fact and most of them are shocked when I show them their source code. Protection against decompilation is still a difficult task. I am still looking for a fast, easy and secure way to do it. I don't want to obfuscate my code so my method names will be a,b,c or so. Reflector or other tools should be unable to recognize my application as .NET assembly at all. I know about some tools already but they are very expensive. Is there any other way to protect my applications?

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  • ASP.NET - Manual authentication system

    - by Gal V
    Hello all, Wer'e developing an ASP.NET C# application, which will contain an authentication system that authenticates users in multiple levels (user, admin, super-admin, etc.). Our idea is NOT to use the built in ASP.NET forms authentication feature. Our plan is to create a whole 'new' system for it- based on the Session object, and SQL database contains users' info such as username & password. Is there any SERIOUS different between our idea to the Forms authentication feature? What security risks do we take? How do we solve them? Is this a good alternative for the forms authentication feature? Thanks in advance !

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  • Calling https process from ASP Net

    - by David M
    I have an ASP NET web server application that calls another process running on the same box that creates a pdf file and returns it. The second process requires a secure connection via SSL. The second process has issued my ASP NET application with a digital certificate but I still cannot authenticate, getting a 403 error. The code is a little hard to show but here's a simplified method ... X509Certificate cert = X509Certificate.CreateFromCertFile("path\to\cert.cer"); string URL = "https://urltoservice?params=value"; HttpWebRequest req = HttpWebRequest.Create(URL) as HttpWebRequest; req.ClientCertificates.Add(cert); req.Credentials = CredentialCache.DefaultCredentials; req.PreAuthenticate = true; /// error happens here WebResponse resp = req.GetResponse(); Stream input = resp.GetResponseStream(); The error text is "The remote server returned an error: (403) Forbidden." Any pointers are welcome.

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  • System.UnauthorizedAccessException from Serial Port in VB.NET

    - by psuhas
    I am using VB.NET 2008 Express Edition to access Serial Port which is a USB to Serial port. Since this is removable, the app user can disconnect it at any time in app. I am getting an unhandled exception when I remove the USB Serial Port. After research, it seems like a known problem in .NET (even in 3.5) I am looking for some solution to get this done. I have already tried the app.config solution that was suggested and it does not work Here is the link for issue http://connect.microsoft.com/VisualStudio/feedback/Validation.aspx?FeedbackID=140018

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  • ASP.NET Custom Validator Error Message: Control referenced by the property cannot be validated

    - by Jan-Frederik Carl
    Hello, I use ASP.NET and have a Button and a CustomValidator, which has to validate the button. <asp:Button ID="saveButton" runat="server" OnClick="SaveButton_Click" Text="Speichern" CausesValidation="true"/> <asp:CustomValidator runat="server" ID="saveCValidator" Display="Static" OnServerValidate="EditPriceCValidator_ServerValidate" ControlToValidate="saveButton" ErrorMessage=""> When loading the page, I receive the error message: "Control 'saveButton' referenced by the ControlToValidate property of 'saveCValidator' cannot be validated." What might be the problem? I searched on the net, but this didn´t help much.

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  • XMLHttpRequest - JSON - .NET

    - by user318194
    I am trying to send JSON from my mozilla addon to my asp.net page. var myJSONObject = {"userName": una,"password": pass}; request = new XMLHttpRequest(); request.open("GET",http://www.google.com/jo=" + myJSONObject,true, null, null); on my .net page I have tried several ways of doing it but not able to find the best way to serialize and deserialize the code. All I need is to send the json data back n forth and parse it on C# n javascript. I am new to all this so any guidance and/or change in direction is appreciated.

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