Selecting default item from Combobox C#

Question

I have few items on my ComboBox items collection, and i'd like to select one item from this list and set it as default item - when app starts - this item is already on comboBox.

I'm trying something like that:

SelectPrint11.SelectedIndex=2; 

but error is:

System.ArgumentOutOfRangeException: InvalidArgument=Value of '2' is not valid for 'SelectedIndex' 

Edit:

In mylist are 3 items, Printer1, Printer2, Printer3. All are added in ComboBox Properties -> Items -> Collection

Answer 1

You can set using SelectedIndex

comboBox1.SelectedIndex= 1; 

OR

SelectedItem

comboBox1.SelectedItem = "your value"; //  

The latter won't throw an exception if the value is not available in the combobox

EDIT

If the value to be selected is not specific then you would be better off with this

comboBox1.SelectedIndex = comboBox1.Items.Count - 1; 

Answer 2

Remember that collections in C# are zero-based (in other words, the first item in a collection is at position zero). If you have two items in your list, and you want to select the last item, use SelectedIndex = 1.