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meaningful grouping in a list

Posted By:      Posted Date: September 22, 2010    Points: 0   Category :SharePoint

I hav a list with publishing links column ,now I am trying to group that list where I can group it by three levels down in a DVWP using metadata.so I want to create columns for metadata in such a way that when a user enter a ne list item it should show a drop down box with fields like

company a,

companyb, so on when a user selects company a then again a drop down box should appear with

Comapny a dept  1

Comapny a dept  2 and so on and this should go one more level down after a user selects company a dept1 it should show a drop down again with

Comapny a dept  1 group1

Comapny a dept  1 group2

how do I do that outof box


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