datagridview - How To Move Row In DataBound DataGrid In C# without Knowing The Object Type -

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i have number of datgridgs want able reorder rows for. sortablebindinglist<> : list<> types contain different objects. tried casting datagridview's datasource sortablebindinglist<object> .removeat() & .insert() cast failed. tried pass object type function using type failed. 

type objtype; ... var x = (sortablebindinglist<objtype>) datagridview.datasource;

but doesn't work either, nether 'typeof(objtype)`.

not sure how proceed.

turns out can dynamic types.

            dynamic list = dgv.datasource;             var item = list[rowindexfrommousedown];             list.removeat(rowindexfrommousedown);             if (rowindexofitemundermousetodrop == -1)                 list.add(item);             else list.insert(rowindexofitemundermousetodrop, item);

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