Recent questions tagged ASP.NET

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asp.net mvc 4 - Adding Validation Attributes With an Entity Framework Data Model

Preface Feb 2015 If you are still using Entity Framework EDMX, please do yourself a favor and checkout using ... I add validation attributes? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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390 views

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asp.net - Resolving "Validation (): Element ‘xxxx’ is not supported" warning in Visual Studio 2005/2008

Over the last couple of days I started getting the following validation warning (green squiggly line at design time ... the resolution I found. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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439 views

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asp.net - What are the pros and cons of running IIS as 32bit vs 64bit on a 64bit OS?

Possibly better suited for "Rack Overflow", but from a developer's point of view, what are the advantages ... made any false assumptions here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net core mvc - MVC 6 HttpPostedFileBase?

I am attempting to upload an image using MVC 6; however, I am not able to find the class HttpPostedFileBase. I ... to upload a file in MVC6? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

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asp.net - "Unable to launch the IIS Express Web server" error

I receive this error when trying to launch IIS Express from Visual Studio with a project that's configured to ... Internet for remote testing. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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481 views

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asp.net - Accessing parent data in nested repeater, in the HeaderTemplate

Simple question, not sure there's a simple answer! So here's the code: (I've simplified it a lot to ... the DataItem in the parent repeater? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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606 views

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asp.net - File uploading in AJAX updatepanel without full postback

I have a update panel, in the update panel I have fileupload control and button control, On button click, I need ... for your kind help..... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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434 views

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asp.net mvc - Entity Framework Include OrderBy random generates duplicate data

When I retrieve a list of items from a database including some children (via .Include), and order the randomly, ... bug in the SQL generation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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698 views

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asp.net - How to disable caching of single page application HTML file served through IIS?

I have a single page application (angular-js) which is served through IIS. How do I prevent caching of HTML files? ... 7.5 with .NET framework 4 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net web api - How to Get byte array properly from an Web Api Method in C#?

I have the following controller method: [HttpPost] [Route("SomeRoute")] public byte[] MyMethod([FromBody] string ... values are also goofed up. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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600 views

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asp.net mvc - MVC4 input field placeholder

Does MVC4 by default support placeholders for generated input fields? I didn't found anything so I am trying to ... value="" class="valid"> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

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asp.net - Difference between DropDownlist or DropDownListFor Html helper

It seems weird that I couldn't find an explanation of the difference between those two helpers, so I would assume ... but not sure why and how? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

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asp.net mvc - MVC4 enum and radio button list

I have seen a few threads on this but none seem to apply to MVC4 because the RadioButtonFor html extension ... there is no selection made? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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412 views

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asp.net - On postback, how can I add a error message to validation summary?

Two questions: On postback when a user clicks submit, how can I add a error message to validation summary? ... in .net validation controls? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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960 views

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asp.net - Escape quote in web.config connection string

I have a connection string in my web config: <add name="MyConString" connectionString="Server=dbsrv;User ID= ... "System.Data.SqlClient" /> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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423 views

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asp.net mvc Adding to the AUTHORIZE attribute

How do I create a custom attribute to extend existing Authorize attribute in MVC? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

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asp.net mvc - Prevent multiple logins

I am trying to block multiple logins with the same user in my application. My idea is to update the security ... get stored in user's cookie? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

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asp.net - Reading the selected value from asp:RadioButtonList using jQuery

I've got code similar to the following... <p><label>Do you have buffet facilities?</label> <asp:RadioButtonList ... no answer in a radio list. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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406 views

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asp.net - Web Api Parameter always null

Why is the parameter always null when I call the below Post method with the below ajax? public IEnumerable<string> Post([ ... } }); } }); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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525 views

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asp.net - Disable web.config inheritance?

I have a content management application in the root of my website, and I'm trying to use a different app (a ... know how to do it better? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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569 views

1 answer

asp.net - C# - Outputting image to response output stream giving GDI+ error

When outputting an image to the output stream, does it require temporary storage? I get the "generic ... , Boolean& completedSynchronously) +75 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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530 views

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asp.net mvc - MVC Bundling and CSS relative URLs

MVC's bundling is returning the wrong URL in CSS images when using CssRewriteUrlTransform: I have an intranet ... to the right location? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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487 views

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asp.net mvc - Adding a css class to select using @Html.DropDownList()

I'm building my first MVC application after years of doing webforms, and for some reason I am not ... arguments Any help greatly appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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526 views

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asp.net - Is there a browser equivalent to IE's ClearAuthenticationCache?

I have a few internal .net web application here that require users to "log out" of them. I know this ... to flush the authentication cache? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

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asp.net mvc - What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet

I've been getting the same old error every time I test a new URL from my browser's address bar when I'm ... exposes that a POST request doesn't? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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461 views

1 answer

asp.net mvc complex routing for tree path

I am wondering how can I define a routing map like this: {TreePath}/{Action}{Id} TreeMap is dynamically ... Gallery/GalleryA/SubGalleryA/View/3' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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322 views

1 answer

asp.net - Images in database vs file system

We have a project coming up where we will be building a whole backend CMS system that will power our entire ... in advance for the help! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

1 answer

asp.net - Get DataKey values in GridView RowCommand

I have a GridView with an associated DataKey, which is the item ID. How do I retrieve that value inside the RowCommand ... I don't want to use. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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