480 Questions

I'm trying to execute long running process by using System.Threading.Tasks and calling it from MVC controller action: new Task( () => { // long runing process and fetching data using EntityFrameworkCore }).Start(); I'm getting following error: A second operation started on ...

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I'm developing a website and trying to debug in chrome dev tool. Dev tool is showing following css style: table { display: table; border-collapse: separate; border-spacing: 2px; border-color: grey; } But it it important to note that I did not define them. On Chrome dev tool ...

I have created new index from existing one by using following Query DSL: POST _reindex { "source": { "index": "myindex" }, "dest": { "index": "new_myindex" } } Now, tried to search on new index but now I'm getting following error: { "error": { "root_cause": [ ...

I have web-service hosted on Azure. And I'm tried to request an endpoint that has long running process. I'm getting following error after around 2 minutes: <h2>502 - Web server received an invalid response while acting as a gateway or proxy server.</h2> <h3>There is a problem ...

I have user's birthday in datatime object format, how do I calculate their age in years?

I have few pages in website and don't want to crawled by any crawlers. How do I disallow specific page, directory using robot.txt.

I'm using jquery.mask to mask phone number input field: <input class="custom-phone-field" type="tel" placeholder="(XX) - XXXX - XXXX" data-mask="(00) 0000 - 0000" /> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.mask/1.14.15/jquery.mask.min.js"></script> ...

Is it possible to change the browse button appearance using CSS?

I'm using input control with type=file. But it's accepting all type of file. I want to restrict only image file. How we can achieve this? I'm trying with following code: <input type="file" name="picture1" accept="image/*"> But when try to browse default it's showing only images file but ...