How to bind a parents property to the child elements datatemplate
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I need to bind the RowStyle property of my DataGrid to the Visibility if the DataGrids childrens through a converter. The thing is that the children exists in a DataTemplate. My code below is a simplified version of what I am doing right now, so It might not make much sence. But anyway:

    <DataGrid Name="dataGrid"
                  ItemsSource="{Binding Path=ListOfData}"
                  RowStyle="{StaticResource DataGridRowStyle}"
                  >
            <DataGrid.RowDetailsTemplate>
                  <DataTemplate>
                        <StackPanel>
                             <TextBlock Name="textBlock" Source={Binding Path=Title}
                             <Image Name="image" Source="{Binding Path=Image}"/>
                        </StackPanel>
                  </DataTemplate>
            </DataGrid.RowDetailsTemplate>
      </DataGrid>

The thing is, that the TextBlock and Image can individually get collapsed. If both are collapsed, I need the DataGridRow to collapse or hide so you wont see it in the grid. My plan was to define a RowStyle named 'DataGridRowStyle'. The style will get triggered by the TextBlock and Images's Visibility property and set the RowStyle's Visibility to collapsed.

      <Style TargetType="{x:Type DataGridRow}" x:Key="DataGridRowStyle">
        <Setter Property="Visibility" Value="Visible" />
        <Style.Triggers>
            <MultiDataTrigger>
                <MultiDataTrigger.Conditions>
                    <Condition Value="True">
                        <Condition.Binding>
                            <MultiBinding Converter="{StaticResource VisibilityConverter}">
                                <Binding ElementName="textBlock" Path="Visibility" />
                                <Binding ElementName="image" Path="Visibility" />
                            </MultiBinding>
                        </Condition.Binding>
                    </Condition>
                </MultiDataTrigger.Conditions>
                <Setter Property="Visibility"  Value="Collapsed"/>
            </MultiDataTrigger>
        </Style.Triggers>
    </Style>

Unfortunately, I get a warning in runtime, where System.Data can't fint my textBlock or image element. I guess you can't bind to a DataTemplate or what do I do wrong? Can I somehow do the same differently?