i wrote this code to bind in gridview...
public void ddlbindroom1()
{
DropDownList rname = (DropDownList)gdvwclass.FindControl("ddlroomname1");
string classRid1 = "SELECT RoomId,RoomName FROM Room";
DataTable dtclassRid1 = new DataTable();
OleDbCommand cmdclassRid1 = new OleDbCommand(classRid1, con);
OleDbDataAdapter daclassDid1 = new OleDbDataAdapter(cmdclassRid1);
daclassDid1.Fill(dtclassRid1);
rname.DataSource = dtclassRid1;
rname.DataTextField = "RoomName";
rname.DataValueField = "RoomId";
rname.DataBind();
rname.Items.Insert(0, new ListItem("Choose", "0"));
}
Vinu malli