WPF双向绑定焦点问题
请教关于DataGrid上双向绑定时，从一个textbox选到另一个textbox时，焦点会跳回原位置的问题怎么解决
DataGrid添加模版
<DataGridTemplateColumn Header="数量" Width="60" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate >
<MyContrl:MyTextBox Text="{Binding FSecQty,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
FDetailClass="{Binding ID,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
TextChanged="MyTextBox_TextChanged_1" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTemplateColumn Header="重量" Width="80" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate >
<MyContrl:MyTextBox Text="{Binding FQty,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
FDetailClass="{Binding ID,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
TextChanged="MyTextBox_TextChanged_2" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
