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Best way to check if object exists in Entity Framework?
...database from a performance point of view? I'm using Entity Framework 1.0 (ASP.NET 3.5 SP1).
8 Answers
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue
...;/sectionGroup>
for more information on upgrading to MVC 5 http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2
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Upload files with HTTPWebrequest (multipart/form-data)
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My ASP.NET Upload FAQ has an article on this, with example code: Upload files using an RFC 1867 POST request with HttpWebRequest/WebClient. This code doesn't load files into memory (as opposed to the code above), supports multip...
How to build a query string for a URL in C#?
...ind.
.NET Core
If you're working in .NET Core, you can use the Microsoft.AspNetCore.WebUtilities.QueryHelpers class, which simplifies this greatly.
https://docs.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.webutilities.queryhelpers
Sample Code:
const string url = "https://customer-inform...
Is HTML considered a programming language? [closed]
...at are relative to the job you're applying for on your resume. If you list ASP.NET but don't list HTML, even though it's somewhat obvious, there are a lot of managers and/or HR types that will assume you don't know HTML since it's not listed. I've had it happen to me before.
Update - Some say no it...
Datatables: Cannot read property 'mData' of undefined
...ure out which table is related. For my case it is the default rendering of Asp.Net table, which is not standardized when the table is empty. Thanks for the tip!
– Hoàng Long
Jul 8 '16 at 9:35
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Auto detect mobile browser (via user-agent?) [closed]
...e are open source scripts on Detect Mobile Browser that do this in Apache, ASP, ColdFusion, JavaScript and PHP.
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IIS7 Overrides customErrors when setting Response.StatusCode?
...r is appropriate. For example, if I make a custom 404 page and name it 404.aspx, I could put <% Response.StatusCode = 404 %> in the contents in order to make it have a true 404 status header.
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Reading large text files with streams in C#
...where streaming a large, generated CSV file to the Response stream from an ASP.Net MVC action was very slow. Adding a BufferedStream improved performance by 100x in this instance. For more see Unbuffered Output Very Slow
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Differences between Html.TextboxFor and Html.EditorFor in MVC and Razor
...d to an <input type="text". So if you decide to change something to the aspect of how your textboxes are rendered like wrapping them in a div you could simply write a custom editor template (~/Views/Shared/EditorTemplates/string.cshtml) and all your textboxes in your application will automaticall...