Question

I want to bind two column from database into dropdownlist. Here’s my code:

SqlConnection con=new SqlConnection(CommonRefference.Constr());
string query = "Select Id,Name+' ('+Distribution_name+') 'as Name1 from BR_supervisor  ";

SqlCommand cmd = new SqlCommand(query,con);
con.Open();

SqlDataReader reader = cmd.ExecuteReader();

while (reader.Read())
{
        DropDownList3.DataSource = query;
        DropDownList3.DataTextField = "name1";
        DropDownList3.DataValueField = "Id";
        DropDownList3.DataBind();
}
con.Close();

But it gives the following error

DataBinding: ‘System.Char’ does not contain a property with the name ‘name1’

How to do it? Anyone helps me is highly appreciated

Answer 1

Its Name1 not name1

change this to

DropDownList3.DataTextField = "Name1";

EDIT:

You are binding a string(query) to datasource here

DropDownList3.DataSource = query;

and string dont have a property with the name ‘name1’,so error

SOLUTION :

refer this,I have changed this for your requirement

private void LoadDropDownList()
        {
            SqlConnection con=new SqlConnection(CommonRefference.Constr());
            string query = "Select Id,Name+' ('+Distribution_name+') 'as Name1 from BR_supervisor  ";

            SqlCommand cmd = new SqlCommand(query,con);
            con.Open();
            SqlDataReader reader = cmd.ExecuteReader();

            DropDownList3.DataSource = reader ;

            DropDownList3.DataValueField = "Id";
            DropDownList3.DataTextField = "Name1";

            DropDownList3.DataBind();

            DropDownList3.Items.Insert(0, new ListItem("Select One", "0")); // Adds items to the DDL
            DropDownList3.Items.Insert(1, new ListItem("All Categories", "-1"));

            con.Close();
        }

For more explanation refer this link Populate-ASP.NET-dropdownlist