WPF：将datatrigger绑定到属性“Ischecked”时Checkbox出现问题

I have a checkbox in GridViewColumn which i use for show/change database value. The click event for the checkbox is used for change value in the database. For handling the state of property "IsChecked" I'm using datatrigger and a setter, se xaml code below:I have a checkbox in GridViewColumn which i use