c# - Exception on GetRowCellValue function in DevExpress -

c# - Exception on GetRowCellValue function in DevExpress -

i'm trying execute next code. grid contains row. nullreference exception occures. plz tell me problem code?

tblitemcode = gridview1.getrowcellvalue(0, gridview1.columns["item code"]).tostring();

i check if gridview has rows / selected rows , assignment:

if (gridview1.rowcount > 0) { if (gridview1.getselectedrows().count() > 0) //optional check { string tblitemcode = gridview1.getrowcellvalue(0, gridview1.columns["item code"]).tostring(); } }

c# .net exception-handling devexpress