怎么给DataTemplate 自定义的button子控件添加点击事件

[zhangyonghui2117]

 <DataTemplate x:Key="MeetingInfoTemplate">
        <Border Width="290" Height="250">
            <Border.Background>
                <ImageBrush ImageSource="Images/MeetingInfo.png" />
            </Border.Background>
            <Grid ShowGridLines="False">
                <Grid.RowDefinitions>
                    <RowDefinition Height="32"></RowDefinition>
                    <RowDefinition Height="36"></RowDefinition>
                    <RowDefinition Height="130"></RowDefinition>
                    <RowDefinition Height="40"></RowDefinition>
                </Grid.RowDefinitions>
                <Label FontFamily="微软雅黑" FontSize="16" Grid.Row="0" Content=" 时间：14:00-16:00"/>
                <Label FontFamily="微软雅黑" FontSize="16" Grid.Row="1" Content=" 主题："/>
                <Label Content="afsdf\naf" FontFamily="微软雅黑" FontSize="16" Grid.Row="2"/>
                <local:ImageButton Margin="100,10,100,0" x:Name="btnExit2" ImagePath="/Images/join_btn.png" Template="{StaticResource ImageButtonTemplate}"  Grid.Row="3" 这里写Click行不行？ }"/>
            </Grid>
        </Border>
    </DataTemplate>