Edited cell was reset after change focus in gridview using devexpress 15.2 c#

Question

i'm newbie in devexpress. when i add new row and fill some value to one cell, then i focus to other cell in same row i lost value in that cell. This is my code (column name in gridview match with coumn in Datatable dtGroupRole)

FrmUser.cs
...
adminGroupRoles = AdminGroupRoles.GetAllGroupRoles().ToList();
dtGroupRole = GlobalVars.ToDataTable<AdminGroupRoles>(adminGroupRoles);
grdGroupRoles.DataSource = adminGroupRoles;


AdminGroupRoles.cs
public class AdminGroupRoles
{
    public int GroupId { get; set; }
    public string GroupName { get; set; }

    public static List<AdminGroupRoles> GetAllGroupRoles()
    {
        return AdminGroupRoles.Inst.ExeStoreToList("sp_AdminUsers_GetAllGroupRoles");
    }
}

The edited cell was reset:

Edited cell was reset

Thanks all :)

score 0 · Answer 1 · answered Mar 16 '16 at 14:47

I see that you assign adminGroupRoles as the grid source. It's a List. So that the grid can add new rows, the data source should be IBindingList. adminGroupRoles doesn't implement it. As far as I understand, dtGroupRole is DataTable converted from adminGroupRoles. So, you need to use as the grid data source:

adminGroupRoles = AdminGroupRoles.GetAllGroupRoles().ToList();
dtGroupRole = GlobalVars.ToDataTable<AdminGroupRoles>(adminGroupRoles);
grdGroupRoles.DataSource = dtGroupRole;

score 0 · Answer 2 · answered Dec 12 '16 at 14:53

Use BindingList instead of List as Gosha_Fighten replied. Then you can convert your bindinglist to list like:
List <T> list = yourbindinglist.Select(b => b).ToList();
OR
convert your list<T> to bindinglist<T> like:
yourBindingList = new BindingList<T>(listToConvert);

Edited cell was reset after change focus in gridview using devexpress 15.2 c#

2 Answers2