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• how can we check file types before uploading them in asp.net?

  - by LostLord

  how can we check file types (formats such as jpg) without using file extensions before -uploading them- in asp.net with c# ? i am using vs 2008 + asp.net + c# + TELERIK Controls (RadUpload) ========================================================================================= imagine that some body change the text file extension to jpg and select it in a upload conrol such as radupload ... how can we recognize that this file is truely jpg or not?

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• How to force Json.Net to put an integer value into a string field?

  - by Earlz

  Hello, in using Json.Net I have a class like this class Foo{ public string name; public string value; } and I have a JSON string that looks like this: [{"name": "some name","value": "1"}] The problem with this is that Json.Net detects "1" as being an integer(due to ambiguities with JSON) and will refuse to put it into the string value of Foo How can I override this behavior so that it will put the string "1" into value?

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• Is there a built-in .NET method for getting all of the properties and values for an object?

  - by Ben McCormack

  Let's say I have: public class Item { public string SKU {get; set; } public string Description {get; set; } } .... Is there a built-in method in .NET that will let me get the properties and values for variable i of type Item that might look like this: {SKU: "123-4556", Description: "Millennial Radio Classic"} I know that .ToString() can be overloaded to provide this functionaility, but I couldn't remember if this was already provided in .NET.

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• How build asp.net web site using nant script?

  - by nrk

  Hi I am using nant-0.90-alpha1 to build asp.net 3.5 web site. I am unable do that. When I am using msbuild , it throwing error saying unknown tag msbuild. How can I build asp.net 3.5 website using nant? Thanks nRk

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• Is there a list of changes for C#4.0 that work in .Net 3.5?

  - by Earlz

  Hello, I've been seeing a lot of C# 4.0 changes as of late. I really like some of them. Also though, I do not want to move on to .Net 4.0 for compatibility reasons just yet. So, is there a comprehensive list of new C# 4.0 language features that will work on .Net 3.5 or lower?

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• How do you persist a class on PostBack in an ASP.NET 3.5 Web Forms project?

  - by Kyle Noland

  How do I persist an ASP.Net class on PostBack? I've already taken the time to go to the database and fill my object with values when the page loads initially, so how can I save this object in an elegant way on a PostBack? The page that contains the custom object posts back to itself. For what it's worth I'm using C# in an ASP.NET 3.5 Web Forms application.

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• How to get admin rights on-demand in .NET application?

  - by sashaeve

  I run .NET application with default rights, then I need to perform some action which requires admin rights. How to get admin rights on-demand in .NET application? Running application with admin rights from the beggining may not be needed as such action may not be called.

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• How do the .NET Framework, CLR and Visual Studio version numbers relate to each other?

  - by Scott Dorman

  With the recent announcement of .NET 4.0 and Visual Studio 2010, it is becoming ever more difficult to keep track of what .NET Framework versions build on what version of the CLR and belong with which version(s) of Visual Studio. Is there a definative table that shows these relationships?

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• Can I develop Web Parts for MOSS 2007 with .NET 3.5?

  - by mythicdawn

  Currently I am developing Web Parts for MOSS 2007 using .NET 2.0 and deploying them to the GAC with WSPBuilder. I would like to move to .NET 3.5 to open up things like LINQ and WCF. Is this possible and will there be any significant changes required to MOSS to support doing so?

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• Git/SVN for asp.net development instead of VSS?

  - by jrutter

  At work, we are using ASP.net 2.0 and VSS. VSS is a beast, we are continually having issues with people checking out files and there is no branching - makes it crazy. I know SVN/GIT is mainly used by open source developers, are there any downsides to ASP.NET developers using it? I have been pushing for SVN internally, but am thinking GIT might also be a great option. Our team is spread across 3 continents.

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• How to maintain my data like a session variable in .NET WinForms?

  - by Ayyappan.Anbalagan

  I am using .net Windows Forms i need to maintain some date to check the condition. so i have to maintain it up to user logged out? like session in ASP.NET how can i do this? (note it should not expires until the user logged out)

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• can asp.net routing 3.5 sp1 do this issue?

  - by Fredou

  I have a folder(/MyFolder/) with a dedicated web.config in it that does an impersonating In that folder I have an asp.net file that use Microsoft report viewer 8.0 named MyReport.aspx When I view this folder on my machine, it's working perfectly without issue When I publish my project to the dev server and I'm trying to view the report, I have an issue where the the user that run IIS doesn't have access to something, (rsAccessDenied) Can asp.net routing cause this issue? (I'm not at work right now so I can only go by memory so it will be hard to provide more information)

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• How to install .Net Framework 2.0 without harming 3.5 and 4.0 already installed?

  - by Ivan

  I've got quite a complex .Net 2.0 project to build (with VS 2010) which does not build without 2.0 version of System.ServiceModel.dll and does not run if compiled with .Framework 4.0. Can I install Net Framework 2.0 safely after 3.5 and 4.0? Or where can I download an old System.ServiceModel .dll assembly?

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• How to integrate cardinalcommerce authentication processing in a flash and Asp.net project?

  - by Krishnan

  Our Asp.net//Flash team doing a shopping cart project. We are integrating First Data Alternative payment gateway. Shopping cart items are selected through flash and our asp.net team taking the data from flash and integrating the first data alternative payment. We have already integrated first data payment gateway. Now we want to integrate First Data Alternative payment gateway. Please help our team to do so

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• Localized messages for internal .NET exceptions - where are the resources stored?

  - by Marek

  I am wondering where do the localized message come from. They apparently from resource class called SR that uses the standard .NET localization mechanism (via ResourceManager) I can not find any satellite resource assemblies (e.g. System.es-es.dll) when I install a specific localized .NET framework version. Where are the localized resource variants coming from?

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• How to make WebKit or IE call your application (.NET) from HTML page opened in browser?

  - by Ole Jak

  I have a .NET application running on windows. I want clicking on some page element (button link flash app etc) to lunch my app with some special parameters. (It should run not just in IE but on WebKit based windows browsers too) During App install we suppose that user is Admin and is running Vista or Windows 7 or Later. So my question is - Where to get examples of such interaction (WITH source of course)? So how to make WebKit based Browser or IE call your .Net application?

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• ASP.Net Page layout is not displaying properly in QA machine but is displaying correctly in Dev Mach

  - by Anwar

  ASP.Net Page layout is not displaying properly in QA machine but is displaying correctly in Dev Machine. What could be the issue? We are using ASP.Net 2.0

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• Which Control can is equvalent to databound list combox box of vb6 in vb.net windows form applicatio

  - by KoolKabin

  Hi guys, I think there should a control like databound list control of vb6 in vb.net windows form application too which can show up data from database. I have confused and staring my database applications in vb.net.... so can you suggest which control can be used?

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• How can I manipulate a VB6 Collection in .NET?

  - by jhominal

  Hello all, I am currently in the process of designing an interface for .NET software that would be consumed by COM objects - specifically, VB6. While I have found a number of pages by Microsoft detailing how to make an COM-interoperable interface, I am currently tripping over the use of Collections in design time: I would like to be able to use a standard VB6 "Collection object" in the .NET program - for example, specify an argument as being a VB6 collection - and thus minimize the time necessary for clients to consume the interface. Thank you in advance.

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• Detecting Enter in TextBox ASP.NET no JavaScript Please.

  - by Rajeev

  Basically I have a Search Text Box with a LinkButton Control on which the click event is fired. now what i want is when the user type keywords and press enter the Click event got fired. So No Javascript Only ASP.NET With VB.NET v2.0 Sincerely Rajeev [email protected]

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• How to suppress the inclusion of the .Net framework in a installation package created with visual st

  - by Dabblernl

  I built a very simple installation package that only consists of some merge modules. The Setup project explorer shows no dependencies on .Net for these merge modules (and it should not). However, on building the .msi file a requierement for .Net is added to it. Can this be avoided, or do I have to use a third party .msi builder? (I tried the obvious unchecking of any checkbox in the requierements listbox.)

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• IOC Container that can target .NET Framework Client Profile?

  - by Rox Wen

  On our current WPF project, we've been performing dependency injection using the Ninject IOC tool. We want to target the .NET Framework Client Profile for a better download/install experience. The problem is that Ninject seems to reference libararies such as System.Web which are NOT in the Client Profile. Can anyone recommend an IOC container that can target the .NET Framework Client Profile (3.5 or 4) ?

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• probability of getting a job in india after doing b-tec and asp.net certification upto 2nd level

  - by abhishek

  hi i m really very confused i have done b-tech(computer science) in 2009 and till now i am a fresher , now i want to do asp.net certification up to 2nd level , would it help me in getting a job as a programmer in asp.net in India pl z help me becz. i need a job pl z give me some expert suggestions

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• Can I run original MS.Net Framework 4 on Linux someway (with Wine perhaps)?

  - by Ivan

  I once heard of a guy managed to install original Microsoft .Net Framework on Linux and successfully run Mono-incompatible .Net applications using bleeding-edge MS C# features. Any idea how could he do it?

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• Is there a step-by-step tutorial for configuring AppFabric Caching with .NET 4.0 Extensible Output C

  - by silent

  I want to use AppFabric as the Disk Caching provider to work with .NET 4.0's extensible output caching feature. But when I installed the AppFabric, I found it is incredibly hard to configure and I have no idea how can I make my ASP.NET app to work with it. So I was wondering is there a easy to understand tutorial for configuring both?

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