Question

I code this code for my ComboBox :

<ComboBox ItemsSource="{Binding Path=AvailableStrings}" SelectedValue="{Binding Path=CurrentStrings}" Name="availableStrings" SelectionChanged="availableStrings_SelectionChanged"/>

And then in the code-behind I have :

private void availableStrings_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    string currentText = availableStrings.SelectedValue as string;
}

I tried to debug and I got the following behaviour in this order :

• 1st, SelectedValue="{Binding Path=CurrentStrings}" calls the get {...} of my property and JUST after that :
• availableStrings_SelectionChanged is called and availableStrings.SelectedValue is null ?!?

My SelectedValue Binding just called the get and get the value oO
It seems like availableStrings_SelectionChanged is called before the value had been assigned the my combobox.. and it sounds like a bug to me no ?

Answer 1

You should use the Set on CurrentStrings to get current values and CurrentStrings should NOT be an array (it should be singular). Bind the SelectedValue TwoWay and don’t use SelectionChanged.