如何清除AutoSuggestBox项目

Question

I have an AutoSuggestBox and its ItemSource is bounded from my VM.

<AutoSuggestBox x:Name="MyBox" Grid.Row="1" GotFocus="MyBox_GotFocus"
                            QueryIcon="Find" PlaceholderText="Search"
                            QuerySubmitted="MyBox_QuerySubmitted"
                            TextMemberPath="Description"
                            Header="Search"
                            ItemsSource="{Binding SearchMatches}" 
                            Style="{StaticResource SearchAutoSuggestBoxStyle}" 
                            ItemTemplate="{StaticResource SearchItemTemplate}"/>

So lets say it is like this:

How can i delete/clear its items/Suggestions on my Void Method?

MyBox.Items.Clear() // this shows Catastrophic failure error

Thanks

Answer 1

You generally don't want to interact with Items directly when you are using data binding. Try Clear on your underlying collection property instead.

SearchMatches.Clear();