SqlCommand sqlcmd = new SqlCommand("select * from stagiaire where Id_stagiaire=@Id_stagiaire", sqlcon); SqlParameter sqlpr1 = new SqlParameter(); sqlpr1.ParameterName = "@Id_stagiaire"; sqlpr1.DbType = System.Data.DbType.Int16; sqlpr1.Direction = System.Data.ParameterDirection.Input; sqlpr1.Value = this.txtID.Text.ToString(); sqlcmd.Parameters.Add(sqlpr1); sqlcon.Open(); sqldr = sqlcmd.ExecuteReader(); if (sqldr.Read()) { this.txtNom.Text = sqldr.GetString(1).ToString(); this.txtPrenom.Text = sqldr.GetString(2).ToString(); this.CmbSp.Text = sqldr.GetString(3).ToString(); if (sqldr.GetString(4).ToString()=="Feminin") this.OppFemale.Checked=true; else { this.oppMale.Checked=true; } this.txtAdrs.Text = sqldr.GetString(5).ToString(); this.dateTimePicker1.Value = sqldr.GetDateTime(6); } else { MessageBox.Show("Ce ID Stagiaire N'existe pas dans la list des Stagiaires !"); } sqlcon.Close();