Asp.net Type 'Web User Control" is not defined.

Problem with intellisense in Visual Studio 2017 when adding a Web User Control dynamically.

To solve this problem, just try registering your control at the page you are adding it to.

Trouble renaming IIS Website.

I have a web server. IIS on Windows Server 2008 R2. It'a a production server which runs many applications for my company.



Every time I open the IIS Manager I can see that "Defaults" as the name of my website. It really itch my eyes for month. But today I decided to change the name to something else.I think about name it the same as the domain name. So I try right-clicking the "Defaults". Owh, there's a "rename". Maybe I should try it.

OLEDB error. "Operation must use an updatable query."

At one time I published a web project that used OLEDB to connect to Ms Access and update some data I got an error "Operation must use an updatable query."

Some googling reached me on this site: “Operation must use an updateable query” error in MS Access

The chosen as answer doesn't really solve my problem. but the second answer really solve it.

The Answer:

There is no error in the code, but the error is thrown due to the following:

 - Please check whether you have given Read-write permission to MS-Access database file.
 - The Database file where it is stored (say in Folder1) is read-only..? 

suppose you are stored the database (MS-Access file) in read only folder, while running your application the connection is not force-fully opened. Hence change the file permission / its containing folder permission like in C:\Program files all most all c drive files been set read-only so changing this permission solves this Problem.

So I change the permission on my folder (App_Data) that stored my Ms Access database to full control.

Problem solved.