Check if object is NOT of type (!= equivalent for "IS") - C#

Question

This works just fine:

    protected void txtTest_Load(object sender, EventArgs e)
    {
        if (sender is TextBox) {...}

    }

is there a way to check if sender is NOT a TextBox, some kind of an equivalent of != for "is"?

Please, don't suggest moving the logic to ELSE{} :)

thank you.

I knew it had to be easy :)

Answer 1

This is one way:

if (!(sender is TextBox)) {...}

Answer 2

Jon T posted the correct answer. You should see the (sender is Textbox) as a bool, which probably makes it easier to understand.

Answer 3

DISCLAIMER: My C# skills are a little rusty.

Couldn't you also do the more verbose "old" way, before the is keyword:

if (sender.GetType() != typeof(TextBox)) { // ... }