ComboBox with two columns in C#
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/1091414/winforms-combobox-with-multiple-columns-c">WinForms combobox with multiple columns (C#)?</a>  </p>
</blockquote>



<p>I this procedure 
ALTER proc [dbo].[VCNAE]
as
select cnae_id,cnae_descricao, cnae_classe    from tbl_CNAE order by cnae_descricao </p>

<p>I use for populate this dataset </p>

<pre><code>        SqlCommand llena4 = new SqlCommand("vcnae", abre);
        llena4.CommandType = CommandType.StoredProcedure;
        da2.SelectCommand = llena4;
        da2.Fill(carga1, "cnae");//4
</code></pre>

<p>Then i populate  combobox </p>

<pre><code>         BindingSource srd = new BindingSource();
         srd.DataSource = llenar.Tables["cnae"];
         CmbCnaePrin.DataSource = srd;
         CmbCnaePrin.DisplayMember = "cnae_descricao" ;
         CmbCnaePrin.ValueMember = "cnae_id";
         CmbCnaePrin.SelectedValue = 259;
</code></pre>

<p>I want to show in display member this :  </p>

<p>cnae_descricao, cnae_classe </p>

<pre><code>                     displaymember = "cnae_descricao"+"cnae_classe"; but this code not work how can  i solve this::????
</code></pre>

<p>Thanks     </p>
