写数据模板，需要重新指定数据上下文

<DataGridTemplateColumn Header="位置信息" Width="*"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Button Content="查看" Tag="{Binding ElementName=PhoneTextColumn}" x:Name="LocationButton" DataContext="{Binding ElementName=FaUserControl,Path=DataContext}" Style="{StaticResource NewBtStyle}"> <i:Interaction.Triggers> <i:EventTrigger EventName="Click"> <ei:CallMethodAction MethodName="LocationButton_OnClick" TargetObject="{Binding }" /> </i:EventTrigger> </i:Interaction.Triggers> </Button> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn>

FaUserControl为整个UserControl

转载于:https://www.cnblogs.com/Lulus/p/8145739.html