29/11/2017 00:23:02 ==> Object reference not set to an instance of an object.
29/11/2017 00:23:08 ==> Thread was being aborted.
29/11/2017 11:26:59 ==> 'Ddlmda' has a SelectedIndex which is invalid because it does not exist in the list of items.
Parameter name: value
29/11/2017 14:26:02 ==> Object reference not set to an instance of an object.
29/11/2017 14:38:15 ==> Object reference not set to an instance of an object.
