About accessing data to dropdown list

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C#

ASP.NET

C#4.0

I need to access data from two tabels to a single dropdown list...I need help

Posted 12-Sep-14 18:20pm

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george4986 13-Sep-14 0:44am

use union all/union query if implimenting in backend.
use merge function of datatable for front end.

BharatPrajapati212 13-Sep-14 1:08am

please clear what data you want in your dropdownlist and in which format you would like to insert.

MuhammadUSman1 13-Sep-14 1:51am

Which data you want to show, you can use join union etc

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BharatPrajapati212 · Answer 1 · 2014-09-12T19:56:00

Try this solution I hope it may help you

C#

System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection(@"Connection String");
System.Data.SqlClient.SqlDataAdapter da = new System.Data.SqlClient.System.Data.DataTable dt = new System.Data.protected void Page_Load(object sender, EventArgs e)
{
        con.Open();
        da = new System.Data.SqlClient.SqlDataAdapter
        ("SELECT Name FROM Namedata UNION SELECT City FROM Citydata", con);
        da.Fill(dt);
        
        foreach(System.Data.DataRow D in dt.Rows)
        {
            DropDownList1.Items.Add(D[0].ToString());
        }
        con.Close();
}