Clipboard.SetText() using ternary operator

Question

Clipboard.SetText(txtBox1.Text);

How can I use a ternary operator here to set the text of the clipboard to txtbox1.Text if txtbox1.Text is not equal to string null, (nothing) ?

Thanks

Answer 1

You cannot. You are calling "SetText" either way. The correct way to achieve that would be to not call SetText if the text is not null. Using Clipboard.SetText( a ? b : c); would give you nothing here if you dont want to set the text (only except hoping that SetText would ignore a null) unless you want some default. in that case something like:

clipboard.SetText(string.IsNullOrEmpty(txtBox1.Text) ? "default text" : txtBox1.Text);

Answer 2

You don't. Just a simple if statement will work though:

if (!string.IsNullOrEmpty(txtBox1.Text)) {
    Clipboard.SetText(txtBox1.Text);
}

Answer 3

Why do you want to use the ternary operator? If you don't need to SetText, then don't.

if (!String.IsNullOrEmpty(txtbox1.Text))
     Clipboard.SetText(txtbox1.Text);

I suppose you could do

Clipboard.SetText(String.IsNullOrEmpty(txtbox1.Text) ? (default here, or as is: Clipboard.GetText()) : txtbox1.Text);

Answer 4

I would suggest simple if , with ternary operator I can not imagine adequate solution.

if (!String.IsNullOrEmpty(txtbox1.Text))
{
  Clipboard.SetText(txtbox1.Text);
}

Ternary mess: (do not use this in a real application!!!)

Action executeAction = String.IsNullOrEmpty(txtbox1.Text) 
                        ? () => {} 
                        : () => { Clipboard.SetText(txtbox1.Text); };

executeAction.Invoke();