asp.net mvc - Cannot select item from GridViewDataComboBoxColumn - DevExpress -

i added combobox column of gridvieweditingmode.batch , @ time of displaying list not allow me select items

  list<productos> lstprod = new list<productos>();                 column.editorproperties().combobox(p =>                 {                     p.valuetype = typeof(string);                     p.textfield = "vcdescequipo";                     p.valuefield = "vcidclaveprov";                    // p.datasource = lstprod.tolist();                     p.bindlist(lstprod);                 }); 

if values of column's editors not bound grid data source's field, suggest configure column unbound column. set column's fieldname property custom name not used filed name in data source , specify column's unboundtype property.

https://www.devexpress.com/support/center/question/details/t540624/gridview-can-t-select-item-from-gridviewdatacomboboxcolumn-in-batch-mode