Can't use "this" keyword or some objects in WPF Project (identifier expected)

Question

I have a WPF project. When I add a class and a method, and write "this.", I get no intellisense. There is a message in the bottom tab of Visual Studio that an identifier is expected, but that doesn't make sense.

Furthermore, I can't access some methods/objects. Take the following example:

        DbProviderFactory factory =      DbProviderFactories.GetFactory("System.Data.OleDb");

When I try to access the variable, no intellisense comes up (get the same message about an identifier).

Does anyone know why this? To make things worse, I have this problem too: http://social.msdn.microsoft.com/Forums/en-US/vswpfdesigner/thread/701934bc-5237-40df-aa54-f768debf4e59

Thanks

Answer 1

Have you tried to restart Visual Studio, I have seen issues with its intellisense like that. If you just go ahead and use the instance, does it compile, if so probably just have to restart the application.

Using "this" if the class is static, the this identifier will not work.

I just typed your exact code in my instance of VS2008 and I got intellisense.

Answer 2

Is your class or method static? If so, you won't be able to call any instance members or properties using the "this" keyword. If you want to use members or properties in static methods, they have to be static too.

Answer 3

In my experience Intellisense fails often when the code for the class that you are writing does not compile. So, the cause might be a syntax error in a different line of code or an absent project reference, or using statement.

I cannot help you with the error link you gave. As this sure means that WPF form does not compile, it follows that Intellisense does not work.