Getting Combobox Selected Value in WPF

Question

hi
i want to get selected value of a combobox that created in WPF,
i use this code :

private void cmb_StuffGroup_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string str;
ComboBoxItem item = (ComboBoxItem)cmb_StuffGroup.SelectedItem;
str = item.Content.ToString();
MessageBox.Show(str, "ITEM");
}

but when i run this code it stop with InvalidCastExeption in line 4.
whats wrong with this code??
thanks

Vulpes · Answer

If your ItemsSource for the ComboBox is a collection of strings then SelectedItem will also be a string albeit wrapped in an object. So I'd try this: private void cmb_StuffGroup_SelectionChanged(object sender SelectionChangedEventArgs e) { string str = comboBox1.SelectedItem as string; if (str != null) MessageBox.Show(str ITEM); }