Crystal Report Formula for traversing the Hierarchy

Question

Hi Friends,
I have a Hierarchy Node Variable in Query Designer and I use the same in my Crystal Report.
I need to create a formula, which will traverse and find all of the child nodes of the selected Hierarchy Node (through the variable). Could you please let me know if this is possible and send me the code.
Thanks in Advance!
Regards,
Vinaya Paulraj.

Answer 1

Hi Vinaya
In Crystal, under the 'Report' menu, there is an item called ''Hierarchical Grouping Options'. This item allows you to sort information based on the relationship between two fields.
For example:
The following example is based on using the sample database called Xtreme that ships with Crystal Reports and Xtreme's Employee table.
There is an {Employee ID} field and {Reports to} field in the Employee table. These fields both contain an Employee ID number. There can be employees with employees that report to them. In other words, there can be employees that report to a higher level of management. You want to see the overall hierarchy of the employees. To do so, you would use the 'Hierarchical Grouping Option' in Crystal Reports.
To view the employee hierarchy from the Employee table, complete the following:
1. Create a group and group on {Employee ID}. You want to group on {Employee ID} because you want to see the overall hierarchy of employees.
· From the 'Insert' menu, select 'Group'.
· From the 'Insert Group' dialog box, select {Employee.Employee ID} in the first drop-down list.
· Click 'OK'.
2. Create a hierarchical group.
· From the 'Report' menu, select 'Hierarchical Grouping Options'.
· Select 'Sort Data Hierarchically'.
· Select {Reports to} from the drop-down list for 'Parent ID'. In this example, the {Reports to} field is the parent field; therefore, we must select it in the 'Parent ID' field.
3. Indenting the hierarchical group, you must enter a value between 0 and 4 inches.
The 'Group Indent' setting only affects the display of the report. If you enter a value other than zero (0) the various levels of hierarchy will appear indented when the report is previewed. Thus making it easier to see the various groups of employees, managers, etc.
For more information, search the online help for 'Grouping data hierarchically'.
Regards
Girish