Question

I am using the next code.

   public void MostrarCombobox(ComboBox cmbIDart)
   {
       Command = "SELECT idArtigoAvaliar FROM dbo.PorAvaliasao WHERE (avaliado = 0) AND (idAutor ='" + Autor.id2 + "')";

       SqlCommand Comm1 = new SqlCommand(Command, Conn);
       SqlDataAdapter data = new SqlDataAdapter(Comm1);

       SqlCommand sqlCommand = new SqlCommand();

       using (Conn)
       {
           sqlCommand = Conn.CreateCommand();

           sqlCommand.CommandText = Command;

           SqlDataAdapter sda = new SqlDataAdapter(sqlCommand.CommandText, Conn);

           SqlCommandBuilder scb = new SqlCommandBuilder(sda);

           //Criar uma tabela para receber os dados
           DataTable dTable = new DataTable();

           //Preencher a tabela
           sda.Fill(dTable);

           BindingSource bSource = new BindingSource();
           bSource.DataSource = dTable;
           cmbIDart.DataSource = bSource;

           Conn.Close();
       }

   }

My problem is that when I am starting to call the ComboBox, it shows System.Data... and I want them to show the value.

What am I doing wrong?

Answer 1

I think in your combobox rows look like showing like;

System.Data.DataRowView
System.Data.DataRowView
System.Data.DataRowView
System.Data.DataRowView
System.Data.DataRowView

You need to set your Combobox DisplayMember and ValueMember properties.

If this is not fix your problem, try to make things more clear dynamically.

Combobox1.Items.Clear();

string Command = "SELECT idArtigoAvaliar FROM dbo.PorAvaliasao WHERE (avaliado = 0) AND (idAutor ='" + Autor.id2 + "')";

SqlCommand cmd = new SqlCommand(Command, Conn);
cmd.CommandText = Command;

SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
   Combobox1.Items.Add(dr["idArtigoAvaliar"].ToString());
}