Question

I am trying to shorten my code by using short-if:

int? myInt=myTextBox.Text == "" ? null : 
    Convert.ToInt32(myTextBox.Text);

But I’m getting the following error:
Type of conditional expression cannot be determined because there is no implicit conversion between ” and ‘int’

The following works:

int? myInt;
if (myTextBox.Text == "") //if no text in the box
   myInt=null;
else
   myInt=Convert.ToInt32(myTextBox.Text);

And if I replace the ‘null’ in integer (say ‘4’) it also works:

int? myInt=myTextBox.Text == "" ? 4: 
    Convert.ToInt32(myTextBox.Text);

Answer 1

Try this instead :

int? myInt=myTextBox.Text == "" ? (int?)null : Convert.ToInt32(myTextBox.Text);