C#

How do I convert httppostedfilebase to httppostedfile in C#? Here is my demo code sinppet:

Hi please I'm converting 12-hour AM/PM format, to military 24-hour time format using C# Console app.

Note: Midnight is 12:00:00AM on a 12-hour clock, and 00:00:00 on a 24-hour clock. Noon is 12:00:00PM on a 12-hour clock, and 12:00:00 on a 24-hour clock.

My code is that :

When I am trying to upload a pdf file(10 MB) using javascript file upload in my ASP.NET MVC application, I am getting this error as below

Maximum request length exceeded

Here is the image of the error

...

When I am trying to run this command using Entity framework in controller of my project

When I am trying to decrypt the encrypted string using C#, I am getting an error as below

Here is the HTML Razor anchor link code clicking on which, I am trying to decrypt it

I have a string with numbers in it, for example here is the string "121 testing your City", now, I would like to extract only "121" from the string, how can I do that using C#?

I am using the code below to convert my string which is in the format "dd/MM/yyyy" into datetime

In my MVC project, I am getting dropdown text data as "NoEffect", "FadeOut" etc, now I would like to show user as "No Effect", "Fade out" etc, show how can I achieve it using C#?

Any method would work, using regex or without using regex.