c# - Cannot implicitly convert type 'string' to 'DevExpress.XtraGrid.Columns.GridColumn' -


i developing windows form application , need save gridview row values table. trying gridview values in c# getting error cannot implicitly convert type 'string' 'devexpress.xtragrid.columns.gridcolumn'. please me 1 , have given below code.

dataview dv_filteredit = new dataview(((datatable)grid_cheque.datasource), "", "", dataviewrowstate.currentrows);         datatable dt = dv_filteredit.totable();         (int = 0; < dt.rows.count - 1; i++)         {              this.chequeno = convert.tostring(dt.rows[i]["chequeno"].tostring());         }


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