C# : 'is' keyword and checking for Not

Question

This is a silly question, but you can use this code to check if something is a particular type...

if (child is IContainer) { //....

Is ther

Answer 1

The way you have it is fine but you could create a set of extension methods to make "a more elegant way to check for the 'NOT' instance."

public static bool Is(this object myObject)
{
    return (myObject is T);
}

public static bool IsNot(this object myObject)
{
    return !(myObject is T);
}

Then you could write:

if (child.IsNot())
{
    // child is not an IContainer
}