ItemControl条目类控件使用Index

                                        <ItemsControl x:Name="If">
                                            <ItemsControl.ItemsPanel>
                                                <ItemsPanelTemplate>
                                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></StackPanel>
                                                </ItemsPanelTemplate>
                                            </ItemsControl.ItemsPanel>
                                            <ItemsControl.ItemTemplate>
                                                <DataTemplate>
                                                    <ContentPresenter x:Name="FixTextInfoContentPresenter">
                                                        <ContentPresenter.Content>
                                                            <MultiBinding Converter="{StaticResource TextInfoDataToControlConverter}">
                                                                <Binding RelativeSource="{RelativeSource Mode=TemplatedParent}"></Binding>
                                                                <Binding ElementName="If"/>
                                                            </MultiBinding>
                                                        </ContentPresenter.Content>
                                                    </ContentPresenter>
                                                </DataTemplate>
                                            </ItemsControl.ItemTemplate>
                                        </ItemsControl>

在Converters中写相应的转换

            ItemsControl con = values[2] as ItemsControl;
            int index = con.ItemContainerGenerator.IndexFromContainer(values[1] as ContentPresenter);