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• .Net best approach SQL Server 2008 incremental update based on up to date version

  - by MicMit

  Assuming daily certain up to date database is produced via loading from various sources. Changes need to be applied to historical database based on uid, new records will added , non existing will be softly deleted , some will be updated. Is Ado.Net and Sql statements the most appropriate technology for the task like this ?

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• Detecting Enter KeyPress on VB.NET 2008

  - by Tareq

  I am using 3.5 framework of VB.NET 2008. I have some textboxes in my form. I want the tab like behavior when my user presses ENTER on one of my textboxes. I used the following Code: Private Sub txtDiscount_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtDiscount.KeyPress If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.Return) Then SendKeys.Send("{TAB}") e.Handled = True End If End Sub But It doen't work for me. Please give me a solution.

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• MetadataType and client validation in ASP.NET MVC 2

  - by Kristoffer Ahl

  Inherited properties and MetadataType does not seem to work with client side validation in ASP.NET MVC 2. The validation of our MetadataTypes work as expected on the server but for some reason it does not generate the appropriate client scripts for it. Client side validation kicks in as expected for properties with the DataAnnotations attributes set on the PersonView so I know that client side validation is active and that it works. Does anyone know if or how it can be fixed? Here's what we have: public abstract class PersonView { public string FirstName { get; set; } public string LastName { get; set; } public string Email { get; set; } [Required] public string PhoneNumber { get; set; } public string AddressLine1 { get; set; } public string AddressLine2 { get; set; } public string AddressZipCode { get; set; } public string AddressCity { get; set; } public string AddressCountry { get; set; } } [MetadataType(typeof(CustomerViewMetaData))] public class CustomerView : PersonView {} [MetadataType(typeof(GuestViewMetaData))] public class GuestView : PersonView {} public class GuestViewMetaData { [Required(ErrorMessage = "The guests firstname is required")] public string FirstName { get; set; } [Required(ErrorMessage = "The guests lastname is required")] public string LastName { get; set; } } public class CustomerViewMetaData { [Required(ErrorMessage = "The customers firstname is required")] public string FirstName { get; set; } [Required(ErrorMessage = "The customers lastname is required")] public string LastName { get; set; } [Required(ErrorMessage = "The customers emails is required")] public string Email { get; set; } } As you can see, it's nothing fancy or strange in there... Can it be fixed? Is it a bug in ASP.NET MVC 2?

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• asp.net formview data tool

  - by Parth

  the formview in data tools in asp.net by default gives textbox in insert mode template. how to change this to textarea or dropdown selection list?

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• Where is System.Linq in .NET 4.0?

  - by Tony_Henrich

  I migrated an asp.net app to 4.0. Now I am getting an error "The type or namespace name 'IQueryable' could not be found". The reference to System.Linq is invalid and I can't find it in the reference list. Where did System.Linq go?

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• drag-drop in gridview .net website

  - by asdf

  Hi, I have a gridview. in run time i need to drag the value from one cell of gridview and drop it in another cell of same gridview in asp.net website. help do the need full.

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• The .NET Legacy

  - by Xencor

  Assume you are taking over a legacy .NET app. pre - 3.0 What are the top 5 diagnostic measures, profiling or otherwise that you would employ to assess the health of the application?

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• ASP.NET Hosting and routing

  - by V-Man

  Is it possible to host 2 asp.net projects off one ip address? I don't have a domain name just an ip number. I'm running IIS7. The first project runs and displays fine over the web by simply typing in the ip address into the browser but I'm having trouble accessing the second. Currently both projects have virtual directories in IIS7. Help is greatly appreciated. Thx

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• Pass through more then one argument with a Javascript .NET postback

  - by Ivo

  I have implemented the javascript function that allows me to do a .NET (4.0) postback Javascript _doPostBack('_Page', argument) C# public void RaisePostBackEvent(string eventArgument) { //something happens } Is it possible to pass through more then one argument?

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• Common programming mistakes for .NET developers to avoid?

  - by amazedsaint

  What are some common mistakes made by .NET developers, and how can we avoid them? For example, trying to open a file without checking whether or not it exists, or catching an error unnecessarily. Please look in to the list before posting new Please justify your answer as well, if applicable and give examples.

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• FormColelction in VB.NET

  - by fireBand

  Hi, I want to detect if a window form is open and if it is then I would like to bring it in front rather than opening it again. I know I need a form collection for this but I want to know if there is a built in form collection that holds all the forms in VB.NET or I need to implement my own. Thank you.

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• ASP.NET: Using Session to store authentication?

  - by Niels Bosma

  I'm having a lot of problems with FormsAuthentication (http://stackoverflow.com/questions/2964342/problem-with-asp-net-authentication) and as as potential work around I'm thinking about storing the login in the Session? Login: Session["Auth.ClientId"] = clientId; IsAuthenticated: Session["Auth.ClientId"] != null; Logout; Session["Auth.ClientId"] == null; I'm not really using most of the bells and whistles of FormsAuthentication anyway. Is this a bad idea?

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• Countdown timer in asp.net

  - by Zerotoinfinite

  Hi Experts, I am using asp.net 3.5 with C#. I want to create a countdown timer and my requirement is like this: Countdown end date: June 16 2010 So, till June 16 comes my timer will show the remeaning time. Please let me know how to achieve it, I google it but i didn't get the excat solution to my problem. Thanks in advance.

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• .NET Framework Version Dependency Bootstrapper

  - by Chris

  About 30 minutes of troubleshooting and it turns out the person who's trying to use my application doesn't have the newest version of the .NET Framework. Is there a way or some KB article which describes a best practice for informing users who are not updated or do not have the framework, etc. Thanks!

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• Is RGBRast included with .NET 3.5 SP1?

  - by emddudley

  I need to use the RGBRast software renderer for a DirectX application I'm developing. Currently I'm just including the DLL with my install. I have read a few places that it is also included with .NET 3.5 SP1. Is this true? If so, where is the DLL located? This redistributable component can be downloaded from: http://www.microsoft.com/downloads/details.aspx?familyid=57d03491-6c49-4429-bff7-130408b5f410

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• Learn Asp.net MVC 2

  - by LaGrad

  I'm Looking for a good project source samples for learning ASP.NET MVC 2. (Full project like CMS, Blog...anything that is well written in MVC2)

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• null string deserialized to empty string when using protobuf-net

  - by cornerback84

  I am using protobuf-net to serialize and deserialize my messages. My message also contain come strings that can be null. However when I deserialize them on the other side, I get empty strings (""). According to google docs, the default value for string type in empty string. What could be the resolution for this issue?

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• Continuous Integration - with what to start: CruiseControl.NET vs TeamCity

  - by Mendy

  I'm new to Continuous Integration. I want an advice with which tool should I start deal with. I see this is the biggest tools right now: CruiseControl.NET or TeamCity. I'm using already this tools: Visual Studio 2010, Mercurial, NAnt, NUnit.

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• Things in .NET Framework 4 that every programmer should know

  - by Faruz

  I recently moved to Visual Studio 2010 and upgraded my website to work with .NET Framework 4. (From VS 2008 - Framework 3.5) What are things I need to know to improve site speed, readability or memory use? For example, I found out that when I use AJAX ScriptManager, one of it's new properties is EnableCDN which enables me to load AJAX .js files from Microsoft CDN.

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• NUnit in TFS 2008 and .NET 4.0

  - by Al Bundy

  Is there a way to set /framework:net-4.0 in nunit-console.exe.config like in GUI? Or any other way to run NUnit tests with MSBuild Community Tasks?

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• VB6 with a .NET Library

  - by sahs

  Hello, I have an application written in VB6, and I need to use a library written in .NET. Is there any way to use the library on my application? Thanks

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• asp.net forms authentification security issues

  - by Andrew Florko

  Hi there, I have a kind of asp.net forms authentication with the code like that: FormsAuthentication.SetAuthCookie(account.Id.ToString(), true); HttpContext.Current.User = new GenericPrincipal(new GenericIdentity(account.Id.ToString()), null); What kind of additional efforts shall I take to make authentication cookie (that is user id) more securable? (https, encoding for example) Thank you in advance!

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• How to write Performance Test for .Net application?

  - by Amitabh

  How to write Performance Test for .Net application? Does nUnit or any other Testing framework provides framework for this? Edit: I have to measure performance of WCF Service.

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• Is ajax + comet + asp.net scalable ?

  - by pixel3cs

  Thinks at a backgammon online multiplayer game with over 100, or even 1000 online users. The game communication is done using Ajax + 3 seconds Comet connection interval + ASP.NET technology. Is this a real scenario ? Didn't so many Comet open connections block the server resulting in big latency ?

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• how to sending extra parameter (key/value) to an asp.net page using swfupload

  - by austin powers

  hi, we are using swfupload for the sake of uploading process in our project but we need add some extra parameter and send them via swfupload to aps.net page how can I do this? is it possible at all to passing extra parameters to a server-side page by using swfupload? regards.

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