Comma seperated data in Dropdownlist

Question

Hi Guys,

 

I have one dropdown and I need to display  data in  dropdown as comma seprated like a,b,c

 

Here is my code:

 

rddlMuster.DataTextField = "ZoneName";

rddlMuster.DataValueField = "ZoneID";

rddlMuster.DataSource = objUtilsDAO.GetZonesByYardID(lstYards.FirstOrDefault().YardID).Where(zm => zm.IsCS == false && zm.ZoneType == (int)Enums.ZoneType.Mustering_Zone).OrderBy(zm => zm.ZoneName);

rddlMuster.DataBind();

 

Can anyone please help me to get comma seprated value in dropdown while  working with linq in asp.net?