How do I write a variable to a datatable

[Michael_Pansolini]

I need to write a string variable to a to go in a specific place in the datatable. Im using the following:

Assign
Datatable(1)(0) = Variable
Actual code is = DT_Collector(PCAPDocNum-1)(0) = InvestorNameOutput

I am getting the following error message:
Assign: Cannot create an L-value from the given expression with property ‘set_Item’ because the target object is null.

[Palaniyappan (Forum Leader)]

Fine the expression would be like this
Yourdatatable.Rows(rowindex)(columnindex) = variable.ToString

Where both rowindex and columnindex starts from 0 for the first row and first column

So it would be like this
Yourdatatable.Rows(1)(0) = variable.ToString

Or we can even mention the column name if we know
Yourdatatable.Rows(rowindex)(“columnname”) = variable.ToString

Cheers @Michael_Pansolini

[Yoichi]

Hi,

I suppose your PCAPDocNum is greater than DT_Collector.rows.count.
Can you check it using the following WriteLine activity before the Assign.
PCAPDocNum.toString + ":" + DT_Collector.rows.count.toString

Regards,

[pattyricarte (Patty Boy)]

Hi @Michael_Pansolini
I think this issue has been resolved.Kindly see article below for your reference.

NullReferenceException: cannot create an L-value from the given expression with property 'size' because the target object is null

Originally we had some problems during a terminal connection (UiPath internal, TN3270): we lost connection during the workflow due to the terminal screen size. In order to change the size of the terminal screen, we changed the worflow based on the solution proposed in this topic:Terminal Session - change screen size. The problem is now: we receive the NullReferenceException which indicates ‘size’ is the problem, but I don’t see why. I added my worflow in attachment. If someone could help us w…

cheers

Happy learning