<TextBox Text="{Binding Search, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
VerticalAlignment="Center" Width="250" md:HintAssist.Hint="查找待办事项"
md:TextFieldAssist.HasClearButton="True">
<TextBox.InputBindings>
<KeyBinding Key="Enter" Command="{Binding ExecuteCommand}" CommandParameter="查询" />
</TextBox.InputBindings>
</TextBox>
标签：InputBindings,事件,绑定,按键,TextBox From： https://www.cnblogs.com/friend/p/17012381.html