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  • Reg Ex parsing error - too many )'s

    - by Chris Herring
    Using regular expressions in .NET with the pattern ^%[^%]+%\Z and the string "few)few%" I get the error - System.ArgumentException: parsing "few)few%" - Too many )'s. Dim match As System.Text.RegularExpressions.Match = System.Text.RegularExpressions.Regex.Match("^%[^%]+%\Z", "few)few%") What would the issue be? Do I need to escape brackets in any input expression to reg ex? (I'm trying the determine if string has the wildcard % at the beginning and end of the string but not elsewhere in the string)

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  • Serialize cookie collection

    - by user313421
    Hello guys My scenario is to store all client cookies as XML file and make the exact "cookie collection" later from this file. So, How to serialize/Deserialize a "cookie collection" in asp.net ? Does "multivalued" cookies need extra considerations rather than standard collection serialization ? Thanks for your time

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  • What is the role and purpose of a bootstrapper?

    - by ForeverDebugging
    I'm working on an application which uses a bootscrapper object to perform some operations when the application first starts. e.g. registers IoC objects, puts certain variables into the asp.net Application session object, does some security checks etc. I had a look around the internet and couldn't find a reference to a bootscrapper pattern, or any article about the subject. Is this a known pattern under a different name?

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  • Can I set the app.config 'useLegacyV2RuntimeActivationPolicy' attribute progamatically?

    - by Thiado de Arruda
    I had to migrate a .NET 3.5 to 4.0 but some dll's were not loading, after googling I found that creating an app.config would solve it: <?xml version="1.0" encoding="utf-8" ?> <configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" /> </startup> </configuration> I would like to setup these options without using configuration files, is it possible?

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  • Convert RGB Colour to OLE_Color

    - by Robert W
    I have the unenviable task of maintaining an ActiveX control that expects OLE_Colors as the back/for colour of the control. Is there a tool or a .NET code sample that will convert from an RGB colour (or a hex colour) to an OLE_Color?

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  • Tips / techniques for high-performance C# server sockets

    - by McKenzieG1
    I have a .NET 2.0 server that seems to be running into scaling problems, probably due to poor design of the socket-handling code, and I am looking for guidance on how I might redesign it to improve performance. Usage scenario: 50 - 150 clients, high rate (up to 100s / second) of small messages (10s of bytes each) to / from each client. Client connections are long-lived - typically hours. (The server is part of a trading system. The client messages are aggregated into groups to send to an exchange over a smaller number of 'outbound' socket connections, and acknowledgment messages are sent back to the clients as each group is processed by the exchange.) OS is Windows Server 2003, hardware is 2 x 4-core X5355. Current client socket design: A TcpListener spawns a thread to read each client socket as clients connect. The threads block on Socket.Receive, parsing incoming messages and inserting them into a set of queues for processing by the core server logic. Acknowledgment messages are sent back out over the client sockets using async Socket.BeginSend calls from the threads that talk to the exchange side. Observed problems: As the client count has grown (now 60-70), we have started to see intermittent delays of up to 100s of milliseconds while sending and receiving data to/from the clients. (We log timestamps for each acknowledgment message, and we can see occasional long gaps in the timestamp sequence for bunches of acks from the same group that normally go out in a few ms total.) Overall system CPU usage is low (< 10%), there is plenty of free RAM, and the core logic and the outbound (exchange-facing) side are performing fine, so the problem seems to be isolated to the client-facing socket code. There is ample network bandwidth between the server and clients (gigabit LAN), and we have ruled out network or hardware-layer problems. Any suggestions or pointers to useful resources would be greatly appreciated. If anyone has any diagnostic or debugging tips for figuring out exactly what is going wrong, those would be great as well. Note: I have the MSDN Magazine article Winsock: Get Closer to the Wire with High-Performance Sockets in .NET, and I have glanced at the Kodart "XF.Server" component - it looks sketchy at best.

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  • npoi export from datatable

    - by Iulian
    I have an asp.net website that will generate some excel files with 7-8 sheets of data. The best solution so far seems to be NPOI, this can create excel files without installing excel on the server, and has a nice API simillar to the excel interop. However i can't find a way to dump an entire datatable in excel similar to CopyFromRecordset Any tips on how to do that , or a better solution than NPOI ?

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  • How to Unit Test HtmlHelper with Moq?

    - by DaveDev
    Could somebody show me how you would go about creating a mock HTML Helper with Moq? This article has a link to an article claiming to describe this, but following the link only returns an ASP.NET Runtime Error [edit] I asked a more specific question related to the same subject here, but it hasn't gotten any responses. I figured it was too specific, so I thought I could get a more general answer to a more general question and modify it to meet my requirements. Thanks

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  • collapsible listview

    - by Anirudh Goel
    i want to make the listview control collapsible to the groups alone. Like in Vista's My Computer, where only the group names are shown and then we click on the group to expand it. I am using VB.NET 3.5

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  • Report Viewer - Out Of Memory Exception

    - by Garcia Julien
    Hi, i'v got a problem with the Report Viewer form .NET 2008. I'ave to get Some 100000 Records for my company for a year dump report. The problem is i get the OutOfMemory Exception on the design of report. Do you know how can i fix it? I get only the column i need and i use a Dataset to display. Thanks Julien

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  • Is there a WinForm control inspector application?

    - by Simon Gillbee
    I'm looking for something that provides interactive meta-data about a running .NET WinForms application. Basically, I'd like to be able to hover over a running WinForms application and have the inspector highlight the various controls and let me inspect properties such as size, position, parent, etc. I could have sworn I've seen this somewhere, but all my searching is turning up nada.

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  • Alternative to System.Web.HttpUtility.HtmlEncode/Decode?

    - by Jörg Battermann
    Is there any 'slimmer' alternative to the System.Web.HttpUtility.HtmlEncode/.Decode functions in .net 3.5 (sp1)? A separate library is fine.. or even 'wanted', at least something that does not pull in a 'whole new world' of dependencies that System.Web requires. I only want to convert a normal string into its xml/xhtml compliant equivalent (& back).

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  • Future SAP RFC SDK

    - by Elmex
    Is the SAP RFC SDK (wdtfuncs.ocx, wdtlog.ocx respectively Interop.SAPFunctionsOCX.dll, Interop.SAPLogonCtrl.dll) an acceptable / recommended way to connect (Microsoft) applications via RFCs with SAP ? Will there be a support and maintenance of the SDK in the future (especially in ECC 6.0) ? Are there people who use these controls in .NET applications ?

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  • Extender controls must be registered using RegisterExtenderControl() before calling RegisterScriptDe

    - by Khurram Aziz
    I am trying to deploy a web application built with Dotnetnuke. There is an DNN Control/ASCX having a MultiView and few AjaxToolkit Controls like AutoComplete, ModalPopup. In Views other (plain) ASCXs are included and some of which have UpdatePanel. On the developer machine (WinXp / ASP.NET Web Server) there is no error...but when I try to deploy it on server, I get the above error.

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  • Invoking a WCF service using claims based authentication

    - by ashwnacharya
    I have a WCF service deployed in a server machine. We are using claims based authentication to authenticate the WCF service caller. The WCF service is restricted by using IIS Authorization rules. How do I programmatically invoke the WCF service using .NET? The client app uses a proxy generated using SVCUtil. calling the service reads the credentials from a configuration file (not the app.config file, in fact the client application does not have a *.config file).

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  • Is there a way of recover from an Exception in Directory.EnumerateFiles ?

    - by Magnus Johansson
    In .NET 4, there's this Directory.EnumerateFiles() method with recursion that seems handy. However, if an Exception occurs within a recursion, how can I continue/recover from that and continuing enumerate the rest of the files? try { var files = from file in Directory.EnumerateFiles(@"c:\", "*.*", SearchOption.AllDirectories) select new { File = file }; Console.WriteLine(files.Count().ToString()); } catch (UnauthorizedAccessException uEx) { Console.WriteLine(uEx.Message); } catch (PathTooLongException ptlEx) { Console.WriteLine(ptlEx.Message); }

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