Let say your
enum
is
enum EHeader
{
One,
Two,
Three
}
string lArrStrCells[0] = "One";
objPersonalInfo.enumHeader = (EHeader)Enum.Parse(typeof(EHeader), lArrStrCells[0] , true);
if (Enum.IsDefined(typeof(EHeader), lArrStrCells[0] ))
objPersonalInfo.enumHeader = (EHeader)Enum.Parse(typeof(EHeader), lArrStrCells[0] , true);