GrpCB.DisplayMember = "Groupe" ; GrpCB.ValueMember = "num_ligne" ; using (DBEntities db = new DBEntities()) { GrpCB.DataSource = db.Grilles.GroupBy(p => p.groupe).ToList(); } this my code to add items to cb but i want group by field groupe i have an errror of grouping is there some correction ?

thank's it solve the groupby problem but i have where problem? sow i select categorie from grille where groupe like groupe : GrpCB.DataSource = db.Grilles.GroupBy(P => P.groupe).Select(g => new { Groupe = g.Key }).ToList(); CatCB.DataSource = db.Grilles.GroupBy(P => P.categorie).Select(g => new { Categorie = g.Key }).ToList(); i want add items to CatCB (categorie combobox) from grille table where groupe = GRPCB (groupe combobox) thnk you again

using (DBEntities db = new DBEntities()) { GrpCB.DataSource = db.Grilles.GroupBy(p => p.groupe) .Select(g => new { Groups = g.Key }).ToList(); } GrpCB.DisplayMember = "Groups";

Answers

combobox iteme group by problem ,???

dzconception

818

GrpCB.DisplayMember = "Groupe";
GrpCB.ValueMember = "num_ligne";
using (DBEntities db = new DBEntities())
{
GrpCB.DataSource = db.Grilles.GroupBy(p => p.groupe).ToList();
}

this my code to add items to cb but i want group by field groupe

i have an errror of grouping

is there some correction ?

Answers (2)

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