Dynamic vertical line in silverlight

Question

How can I build a dynamic vertical line in SiliverLight 5. We are using Visifire charts.

Scenario is like user can plan a future date and that will be mark as a yellow vertical line. And also there can be more than one vertical line.

It should look like this:

Answer 1

It looks like you should be able to use a "TrendLine" to draw vertical lines at whatever position you choose. For a vertical "trend line", just set the "Value" and Orientation properties.