how to check if item is selected from a comboBox in C#

Question

I\'m pretty new here.

I have a form, and want to check if the user filled it in correctly. In the form there\'s a combo box; how can I build the \"if\" statement fo

Answer 1

if (combo1.SelectedIndex > -1)
{
    // do something
}

if any item is selected selected index will be greater than -1