Changing a value declared in a DIV using VB.Net

I have the following code line which puts a progress bar on the screen. I found the code on CodePen website and I’m still learning so please bear with me. If I change the value in data-cp-percentage then the progress bar changes to that percentage. There’s obviously CSS and Java too but I simply need to change the value in this line programatically in VB. I have tried giving the DIV an ID and but then still unsure how to change it.

How can I connect a SQL database to a webhosted site with IIS on the web?

I am building a test web application in asp.net core and I have hosted my site from laptop. Everything seems good but when I go to access any database related page the page just loads for a bit until it gives me an error and prompts me to go developer mode to see more relevant information(which I can’t because the site is not on localhost it is on the web). I tried to change my connection string to different iterations it did not work, the site works locally with IIS express. Frankly I do not know what to do the documentation seems to be not existent so I would appreciate your help. You can test the website at http://digital60.ddnsking.com/.

Asp.Net 5 Authentication cookie is reset after every rebuild – How can I truly persist it?

I have a problem with an Asp.Net 5 application I’m currently developing. Essentially it’s an anonymous page with user-attached data, so I’m very much dependant on having a persistent and reliable cookie to identify a calling user. Therefore, I have also checked how I need to configure cookies, and put them on a very long expiration timespan, and made them persistent.