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delphi 4

in a drawgrid say grid1, i have 20 rows, 5 rows are related to item1, next 5 are related to item2, like wise last 5 rows related to item4.

now on a button click, i need to show in another tdrawgrid say grid2, only 5 rows :
all rows related to item 1 shall be shown in a single row, eg row 1
all rows related to item2 shall be shown in a singel row eg row2
like wise all row related to item 4 shall be show in single row eg row4

1 option in my mind is:
putting all rows related to item 1 in a stringlist lets say stringlist1
putting all rows related to item 2 in a stringlist lets say stringlist2
.........................................................like wise..............................
putting all row related to item 4 in a stinglist lets say stringlist4
show them in grid2.

?to implement?
3 Solutions
Ephraim WangoyaCommented:
Use two TClientDatasets
Create a master child relationship

When you click on master or move to master record via code, child records are automatically filtered. You can then draw whatever is on the child dataset on your grid.
Sinisa VukCommented:
TVirtualTreeView have a great possibilities.
Geert GOracle dbaCommented:
devexpress can nest grids
tms also has very good options
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