MultiColumns in a DropDownList in ASP.NET using c#

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I am trying to show 2 columns in a DropDownList Menu. To accomplish that,

when I execute the following SQL query in SSMS,

SQL

SELECT (convert(varchar,Cost_ID) +' , '+ Item_Description) FROM Cost_ID;

It brings the desired output. But when I add it in Microsoft Visual Studio 2012 Data-Source, i.e.,

ASP.NET

<asp:SqlDataSource ID="SqlDataSource12" runat="server" ConnectionString="Data Source=MEHDI-PC\SQLEXPRESS;Initial Catalog=PIMS;Integrated Security=True" ProviderName="System.Data.SqlClient" SelectCommand="SELECT (convert(varchar,CostID) +'   ,   '+ Item_Description) FROM Cost_ID"></asp:SqlDataSource>

it gives the following error when I run the program:

HTML

DataBinding: System.Data.DataRowView does not contain a property with the name Cost_ID.

Any idea where I am going wrong?

Thank You.

Posted 28-Jul-13 1:51am

rf_libra

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ridoy · Accepted Answer · 2013-07-28T04:15:00

Not sure if i understand you right,you are trying to show multiple columns in dropdownlist that comes from a database.Is it?
If that then see how it can be done below:

C#

SqlCommand cmd;
SqlConnection con;
SqlDataAdapter da;
DataSet ds;

private void button1_Click(object sender, EventArgs e)
{
    con = new SqlConnection("your_database_connection_sting");
    cmd =new SqlCommand ("select * from emp", con);
    da = new SqlDataAdapter(cmd);
    DataSet ds = new DataSet();
    da.Fill(ds);

    for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
    {
        comboBox1.Items.Add(ds.Tables[0].Rows[i][0] + " " + ds.Tables[0].Rows[i][1] + " " + ds.Tables[0].Rows[i][2]);
    }
}

Output:

C#

1021 shuvro 4875
1022 ridoy 3675
1023 trena 5575