Writing values to DataTable

[chewbecca]

I'm new to the site - so please forgive me if this has been answered somewhere else.

I'm using the following code to set a value on the Global datasheet - I see the value written during run-time, but after the execution is completed, the values are removed from the DataTable. Any chance someone can help me figure out what I'm missing? Ideally, I want this value to be retained after execution.

With the code below, I expect to write the contents of the variable DOC_NUM to the column labeled "DOC_NUM" on the Global datasheet:

Code:

Dim DOC_NUM

DOC_NUM = "12345"

DataTable.Value("DOC_NUM",dtGlobalSheet) = DOC_NUM