How to use Cognos report studio creating a list with dynamic columns?

I need to create a table list in cognos, but the columns of this table would 开发者_如何学Gochange depend on the data.I don't know how to do this. I just know in cognos report studio, we can drag data into cognos list report.

Update: I don't know how many columns in this table.Because different data generate different number of columns.Actually,one row of data is a tree hierarchy.For example,the first columns is root,the second column is its child,and maybe the third columns is second child,or first grandson,and so on.So the columns always change.

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In report studio just make list report by dragging on your wish. But make sure it contains all columns that you need (i mean columns inculded in dynamic changes).

Say 4 columns you need at max.

Name
Roll no
Age
Address

Then create conditional style vairable (You can find in center bar)

now based on this condition dynamically chose the style.

Eg: If condition 1 satisfied

Name
Roll No

If condition 2 satisfied

Name
Address

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I would use a Crosstab instead of a List. The columns are created dynamically without any other programming involved.

Just drag a Crosstab into report page, set the columns and rows (which can be nested by the way) and finally, drag the fact field right at the center of the Crosstab.

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Try the following:

1. Create a list as per the requirement.
2. Hide the columns.
3. In each column expression, give the condition and set show as per the condition.