Problem of hierachical data in datagrid [modified]
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Hello ! Someone here, kindly help me. I have a file Dataset1.xsd that contains 2 table adapters in one-to-many relation (tblOrder and tblOrderDetail)and Relation link of two tables throughout tblOrder.OrderID = tblOrderDetail.OrderID(of course tables contains related data in database) I know how to use dataset to assign for Datagrid datasource to make hierachical data in grid. I assigned datagrid1.datasource = tblOrderBingdingSource. When I run this program, then I click an item in parent data, surely child data will appear but tblOrderDetail.OrderID only appears, other columns have null values although I assigned the other columns specified values. I don't know why so ? Help me. Thanks in advance -- modified at 4:46 Tuesday 27th March, 2007