master form


 field 1  

field 2  --- Here i need update the date column based on details block field value





details block


field1   field2  field 3





note :

Record1   10   10   10-jan-2010

record2   20    15  15-jan-2011

record3   30    20   20-apr-2012

First record entering stage 10-jan-2010 show to master field2
second record entering stage 15-jan-2011 show to master field
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etc