I am using behavior for ComboBox described in How can I make a WPF combo box have the width of its widest element in XAML?
unlike in question I'm creating ComboBox (for toolbar) in code behind:
private static ComboBox GetCombobox(ToolbarItemViewModel item)
{
var cmbBox = new ComboBox();
cmbBox.Name = item.Name;
item.CmbBoxItems = new ObservableCollection<KeyValuePair<string, string>>(NisDllInterface.GetComboBoxValues(NisDllInterface.MainFrameName, item.Name));
Binding itemsBinding = new Binding("CmbBoxItems");
itemsBinding.Source = item;
cmbBox.SetBinding(ComboBox.ItemsSourceProperty, itemsBinding);
cmbBox.DisplayMemberPath = "Value";
Binding selItemBinding = new Binding("SelectedItem");
selItemBinding.Source = item;
cmbBox.SetBinding(ComboBox.SelectedItemProperty, selItemBinding);
return cmbBox;
}
I get the example somewhat working by adding Loaded event handler in method above:
cmbBox.Loaded += (sender, args) =>
{
ComboBox comboBox = sender as ComboBox;
Action action = () => { comboBox.SetWidthFromItems(); };
comboBox.Dispatcher.BeginInvoke(action, DispatcherPriority.ContextIdle);
};
However I would like to know how can I attach behavior in code behind in same way it's done in XAML:
<ComboBox behaviors:ComboBoxWidthFromItemsBehavior.ComboBoxWidthFromItems="True">
