Selecting default item from Combobox C#

c# .net winforms combobox
Elfoc picture Elfoc · Apr 12, 2011 · Viewed 173k times · Source

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

V4Vendetta picture V4Vendetta · Apr 12, 2011

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;

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