This is a simple way to select an option from a dropdownlist based on a string val
private void SetDDLs(DropDownList d,string val)
{
ListItem li;
for (int i = 0; i < d.Items.Count; i++)
{
li = d.Items[i];
if (li.Value == val)
{
d.SelectedIndex = i;
break;
}
}
}