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• Passing data attribute to TextBoxFor not working

  - by john G

  I have the following code inside my ASP.NET MVC 4 razor view: <div> <span class="f">Old Tag</span> @Html.TextBoxFor(model => model.olfTag, new { data_autocomplete_source = Url.Action("AutoComplete", "Home") }) @Html.ValidationMessageFor(model => model.olfTag) </div> But data_autocomplete_source with TextBoxFor will not work. Can anyone give me some advice?

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• Error while using Script Manager

  - by Darshna Raghani

  "Only one instance of a Script Manager can be added to the page. " Such Error occurs when I use Script Manager in my vb.net 2005 application. What should I Do?

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• How to determine which thread is created from another?

  - by Alex Angas

  Is there any way in .NET for a thread to determine its 'parent', i.e. the thread that created it? I'm diagnosing a timing issue with a black box third party API and would like to find out what custom code of mine it is executing on which thread.

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• Adding Jquery functionality on PartialView load

  - by user252160

  How can I attach jquery on an ASP.NET MVC partial load. I've a form rendered in a partial that has some jquery attached, but that code is not running at all

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• deploying precompiled WCF REST service error "service not defined"

  - by Attilah

  I created an ASP.NET REST service (using WCF) and access it through one of my .aspx page. the problem is that when I publish (precomile) my code to the web server, I get an error : "ThunServ not defined" in the Javascript console of my browser. don't know what's causing it and how to solve it.

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• Best practice or performance difference between ToString() and & concatenation

  - by slolife

  When I am concatenating object values together to form a string in VB.NET, is there a difference in performance or a recommended best practice between using the & concat or the + concat with calls to .ToString() on each object? Example (which is faster or best practice): Dim result1 As String = 10 & "em" Dim result2 As String = 10.ToString() + "em"

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• How to check if a checkboxes state has changed

  - by MemphisDeveloper

  Using .Net, I need to generate a response based on only the checkboxes on my form that have had there states changed. So how do I know if the check box has changed from its previous value before submission. I can't use the onchange event because the user may check multiple boxes before submitting.

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• Validation without UpdateModel

  - by Danny

  I have a an ASP.NET MVC2 application, with Linq2SQL, that updates a database without using the UpdateModel. Is it still possible to trigger validation without using UpdateModel?

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• Checking for DBNull throws a StrongTypingException

  - by calico-cat

  I am using a dataset to pull data from a DB. One of the fields in a row is NULL. I know this. However, the following vb.net code throws a StrongTypingException (in the autogenerated get_SomeField() method in the dataset designer): If Not IsDBNull(aRow.SomeField) Then 'do something End If According to documentation and this question it should be fine. edit: If aRow.SomeField is DBNull.Value Then also returns the same error. Argh.

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• How to Not Submit a Form Using AJAXToolkit AutoComplete Extender?

  - by deepss

  Hi I have used AJAXToolkit AutoComplete extender in my project.It works fines.But the issue is with the form of the page. when i type in the AutoComplete, i get list of suggestions.When i click on the page other than the Autocomplete, the form gets submitted. any suggestions how to stop submission of entire form whenever i click on the page?I use .net 2.0

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• Serialize in a human readable text format

  - by Martin Kirsche

  Is there a way in .NET 2.0 (C#) to serialize object like you do using XmlSerializer in a simple / customizable human readable format thats for instance looks like PXLS or JSON? Also I know that XML is human readable, I'm looking for something with less annoying redundancy, something that you can output to the console as a result for the user.

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• Separation of ASpx pages on one m/c and application logic on another m/c

  - by venugopal

  We are using VB.NET and ASPx for our project. we would like to separate the aspx pages and put them on the IIS server (web server) on one m/c and the business logic and DAL layer on another IIS server (application server) on a different m/c .The database is on another m/c. Is such a configuration possible ? If so how can it be implemented?

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• C# code analysis - VS 2005

  - by anon

  I have a C# user control project which causes intermittent .NET run time error, a generic error, and wondering if there is any code analysis tool that I can point at my .sln file which would tell me what may be causing my error

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• parsing email text reply/forward

  - by Theofanis Pantelides

  Hi, I am creating a web based email client using c# asp.net. What is confusing is that various email clients seem to add the original text in alot of different ways when replying by email. What I was wondering is that, if there is some sort of standardized way, to disambiguate this process? Thank you -Theo

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• Visual Studio 2010 RTM started giving me 'does not exist in the current context errors'

  - by Hurricanepkt

  Just installed the trial version of Visual Studio 2010 RTM. Now I keep getting : The name 'NoPanel' does not exist in the current context Errors (where no panel is just about any control in the .aspx file) also I got several errors trying to deploy pages and it would not send the .cs file over ...or pdfs in the Content directory (even though I had copy always set)... This is happening on a pair of mixed ASP.NET MVC and Webforms sites.

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• ServerVariables and POST Data

  - by tyndall

  I've got a piece of tracking code which is capturing REMOTE_HOST, SERVER, REQUEST_METHOD, SCRIPT_NAME and QUERY_STRING. It grabs these from ServerVariables and sticks them in a database by user and IP. What is the best way to pick up the exact contents of what was posted back to a URL in ASP.NET? Is there an HTTP_POST? I'd rather not grab something and then have to parse it.

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• How to subtract dates in YYYYMMDD format?

  - by NinjaBomb

  I have 2 integer fields that represent dates in the YYYYMMDD format. What is the best way to subtract 2 of these fields to get the correct # of days between them? For instance, if I take the difference between 20100511 and 20100428 I would like the result to be 13 and not 83. I know I need to convert the integer fields into date formats but everything I have tried either throws an exception or doesn't work correctly. What am I missing? Answers in vb.net please

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• What's the Microsoft Ajax equivalent to jquery.ajaxSetup() or .ajaxError()?

  - by Seth Petry-Johnson

  I have an ASP.NET MVC site that uses both Microsoft Ajax [Ajax.BeginForm()] and jQuery to make asynchronous requests. I want to configure both frameworks such that a generic error handler is automatically attached if the developer does not explicitly specify a failure callback. In jQuery I can accomplish this with either .ajaxSetup() or .ajaxError(). What is the equivalent in the Microsoft Ajax client library? I'm fairly sure it's something in the Sys object but I can't find it...

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• Change managed C++ project to another framework than 4.0 with vs2010

  - by codymanix

  Since I upgraded my project to visual studio 2010 project format, my managed c++ project is targeted to .net framework 4.0. It is easy to switch the framework version to another version from a C# project, but I have no clue how to do this in a MC++ project, I see no setting for this in the project property pages.

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• post form data to controller without page refresh

  - by Xulfee

  can any one guide me. Post form data to controller without page refresh in asp.net mvc application using Jquery ajax.

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• Dropdownlist disappears in IE7

  - by IP

  In an ASP.Net application, I have a dropdownlist that, when you select something (causing an ajax postback), it disappears in IE7 (in IE8 running in IE7 mode, it does this: http://twitpic.com/1t9blq). Other browsers it is fine in

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• Server-based Chat

  - by daemonfire300

  Described on this scheme "Server Clients Scheme" I try to create a Silverlight / Server Application which has EventHandler/Triggers, which can do the following: Notice whether a message was sent to "it" (the server) Notice that the sent message is new "to all" "except" "the sender" Send "to all" ("except...") "new message can be downloaded" / or even the new messages How could this be done by using: ASP.NET and Silverlight?

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• Setting the cores to use in Parallelism

  - by Ben

  Hi, I have a feeling the answer to this is no, but using .Net 4.0's Parallelism, can you set the amount of cores on which to run i.e. if your running a Quad Core, can you set your Application to only use 2 of them? Thanks

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• Using #DEBUG macros in spark

  - by Quintin Par

  I have some scripts which need to be included only in the release version. Stuff like google analytics, quantserve etc. The typical way in asp.net mvc world is to wrap a #if DEBUG #endif How do I do it the sparkish way. Like <script if='x==5' type="text/javascript">

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• ViewStateMode Disabled but still getting ViewState element

  - by Chris Marisic

  I have a ASP.NET 4.0 webforms site where I have the MasterPage so it is set to ViewStateMode="Disabled" along with the content placeholders being set similarly. When I'd view my page I'd still see a ViewState field rendered, I then tried adding the ViewStateMode="Disabled" to the page level also but that didn't change anything.

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