How to do invisible detail page

[khoinh]

Hi,
I am working on Cognos 8.4 .  I have the tree prompt in prompt page with structure: Level 1 -> Level 2 -> Level 3. The high level will have one or more children node. I want to display detail page if I selected the node from level 1 and level 2. When I selected level 3, the detail page will be invisible. How can I do it?

Thanks

[rockytopmark]

Create a Conditional Variable based on the Level, that will return either a True False (Boolean) or a string, that can be interogated for use as a Render Variable for the Detail page. 

In essence, you are setting up to: Render the Detail page only when the Condition is appropriate.

[khoinh]

Hi,

   I used a data item (TreeLevel) to check level of tree. It ran well .However, when I aplied my data item with render variable, I received this error message:
'An error ocurred at or near the position '0'. The variable named 'Query5.Treelevel' is invalid.'

How can I resolve it?

Thanks
Khoi

[Lynn]

You need to associate that query item to the page. Navigate to the page level and set the Query property to your query. Then select the "Properties" property and place a check mark for your TreeLevel query item.

[khoinh]

Hi

   It worked for me. However, I see the page is not invisible really. I can not see data in page but a blank page is still showed. How can this blank page disappear?

Thanks