Object reference not set to an instance of an object in Assign

faq
#1

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Any Help please !

#2

Check the in_TransactionItem whether value is passing or not
if it is argument pass the value while invoking

#3

@AminaMD NullReferenceException this exception occurs when you are trying to display variable but that variable is having null values.

Example: var a;
Input Dialog
Message Box (a.Tostring);

If you are trying to display a value in message box but with out using this variable in the input dialog box NullReferenceException occurs