c# - DataView rowfilter with 2 levels of parents -


how can create dataview rowfilter 2 levels of parent relations?

within 1 level, can like: "parent(nameoftherelation).id_something = " + 17

however, 2 levels don't know do?

can shed light on can try next?

define expression column on parent table...

datatable dtgrandparent, dtparent, dtchild;  datacolumn datacolumn = new datacolumn("somefield"); datacolumn.expression = "parent(nameofparenttograndparentrelation).somefield"; dtparent.columns.add(datacolumn);  dataview dv = new dataview(dtchild); dv.rowfilter = "parent(nameofchildtoparentrelation).somefield";

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