I have never used Wordpress before so I could be wrong. If I understand correctly, MySQL is the core of Wordpress so you already have a database, you will have to find a plugin to save your data to the database, I have found one on google but you will have to pay for it. You can do it yourself but it will require you to learn PHP and SQL. Have a look at this plugin: [https://wordpress.org/plugins/ninja-forms/\]

Instead of binding all gridviews to one DataTable, bind each grid to a different dataView of the same DataTable: e.g.

Gridview1.DataSource = New DataView(ds)
Gridview1.DataBind()
grvspouse.DataSource = New DataView(ds)
grvspouse.DataBind()
grvDiv.DataSource = New DataView(ds)
grvDiv.DataBind()
...
...

I have been a web developer more than 10 years using ASP.NET Web Forms and I would like to brush-up my skills and currently looking at ASP.NET MVC. I was looking at a few courses on Udemy and Pluralsight and also at a few ebooks. Do you guys have any recommendations on which courses or books are great from start to end?

Check the UserPrincipal.FindByIdentity functions if it has the following code in it:

throw new NotImplementedException();

That is why websites were easily hacked in the earlier times due to inefficient security. Like I said, javascript can only close windows that was opened by it.

Unfortunately you can't for security purposes. You can only close windows that were opened by Javascript.

Have a look at WebRTC

I'm probably to late but here is it anyway. You can make use of Regular expression (Regex) to validation your strings. Here is an example on how to check if the string is an email address using regex:

function validateEmail(email) {
var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
return re.test(String(email).toLowerCase());
}

After you have learned the basics of JavaScript, I highly recommend getting a nice book on JQuery, belief me this makes your life much easier.

There is nothing wrong with Absolute Positioning, this is a widely used property and is here to stay for a long time. The way you are using it is unnecessary that is if you don't display your layers above a fixed background image (<img src="">). If you want to move away from Absolute Positioning, use margins.

The problem is that the emails have already been sent so won't be able to add a query string.

Hey Guys, I have run into a small problem, we have sent a bulk email containing a link to a pdf file, a week after the bulk mail the pdf file had to be updated. My problem now is some of the recipients still viewing the cache version of the pdf, is there a way to force the browser to view the updated pdf file?

It is not possible with a very good reason, It will be a huge security risk.

Are you able to open pdf files or is it also showing binnary?

what is the file's extension? .doc or .docx I think it is your content type that is incorrect If the extension is .doc, the content type should be application/msword and if your extension is .docx, the content type should be application/vnd.openxmlformats-officedocument.wordprocessingml.document

You can add target="_blank" to you hyperlink button and set the button to navigate to a generic handler that will get the file from your database and display it.

Last time I checked, MVC is part of ASP.net.

Replace asp:ScriptManager with ajaxToolkit:ToolkitScriptManager

Did you enable "World Wide Web Services (HTTP Traffic-In)" and "World Wide Web Services (HTTPS Traffic-In)" inbound rules?

guess can return an empty string when you click on Ok without entering anything, guess will only be null if you click on cancel or if you close the prompt. Add guess == '' to your if statement or replace guess == null with isNaN(guess) that will check if the value is a legal number