How to use Information Keyword in C#

Hi,

You need to qualify the use of the Microsoft.VisualBasic assembly, before you can directly reference its methods, something like:

using Microsoft.VisualBasic;

Or you can reference the IsNumeric method by specifying it via it's full namespace, something like:

Microsoft.VisualBasic.Information.IsNumeric

Have a look at the following article on C# Equivalent of VB's IsNumeric()[^]

... hope it helps.

Rather than posting a question about every problem you come across, it would be far better for you to learn the basics of how to program. Get a book on c# and go through it from beginning to end. You can't learn a coding language by cutting an pasting code you don't understand then expecting people to fix it for you. You're not learning anything, and at worse you're just wasting people's time. We're not here to teach you how to write "Hello World".