How to handle null values while Summing in RTF Template

Summary

How to handle null values while Summing in RTF Template

Content

Hi Team,

 

Please advise with syntax for to handle null values while Summing values in RTF Template .

Added sample XML for your reference. 

Eg: <CUSTOM_COLUMN23_NUMERIC>150</CUSTOM_COLUMN23_NUMERIC>

<CUSTOM_COLUMN24_NUMERIC>100</CUSTOM_COLUMN24_NUMERIC>

<CUSTOM_COLUMN25_NUMERIC></CUSTOM_COLUMN25_NUMERIC>

I want to sum the above values. 

 

Thanks,

PMM