Question

I have a asp.net application in that I am using ado.net entity framework in which I want to bind the two column in that dropdown.for example:

in database their two column of First_name ,Last_name .I want these two columns value come in a single dropdown using C#.

How to do that?

public void BindClients()
{
    //To Bind the Client Names for Searching Option
    var ddlclientnames = (from ddl in mortgageentity.Clients select ddl).ToList();
    if (ddlclientnames.Count() > 0)
    {
        ddlsearchclient.DataSource = ddlclientnames;
        ddlsearchclient.DataValueField = "Client_ID";
        ddlsearchclient.DataTextField = "LastName";
        ddlsearchclient.DataBind();
    }
}

Answer 1

Unless you use the Fullname a lot, I would suggest to use an anonymous type in your select.

This also limits the amount of data that will be done in your select and other overhead.

var ddlclientnames = (from ddl in mortgageentity.Clients 
                select new { id = ..., FullName = FirstName + Lastname}.ToList();