/// <summary>
/// Shows how to Update an existing record by Primary Key
/// </summary>
private void Update()
{
// first instantiate a new RoleMaster
RoleMaster objRoleMaster = new RoleMaster();
// assign the existing primary key(s)
// of the record you want updated
objRoleMaster.RoleId = 1;
// assign values you want updated
objRoleMaster.RoleDescription = "Administrator";
objRoleMaster.CreatedOn = DateTime.Now;
objRoleMaster.CreatedBy = "System";
objRoleMaster.ModifiedOn = DateTime.Now;
objRoleMaster.ModifiedBy = "abc";
// finally, update an existing record
objRoleMaster.Update();
}