SSRS report pdf export show column value 0 - reporting-services

Question

I have a cell in a table that value comes form one method which is written in code section of report property as a string type.
In report viewer it's showing the proper value but when I try to export it in PDF that column shows zero in place of the value but in excel and other exports that value export successfully
Public total as Decimal=0
Public function CalculateTotalForMaxMarks(m as Decimal)
total =total +m
end function
Public function CalculateTotal() as String
return total
end function
I would like my output to look like this
Value1 Value2 Value3 Total
100 200 200 500

Answer 1

If you want to sum across columns is there a reason why you are not simply creating an expression to Sum the values? Based on the values
Value1 Value2 Value3 Total
100 200 200 500
123 456 789 1368
You can perform the Expression under total to be
=Fields!Value1.Value+Fields!Value2.Value+Fields!Value3.Value
To give
Edit
To show a total Max value column you can add a new Row at the bottom of the table, and under Total insert the expression
=MAX(Fields!Value1.Value+Fields!Value2.Value+Fields!Value3.Value)
You can rename this textbox to be a specific name, in this instance txtTotalSum. You can then add a new Column to your table called Max Total and set the expression of this to be referring to your txtMaxSum value
=ReportItems!txtMaxSum.Value
Finally to not show the bottom row where the maximum sum is calculated you can hide this row (in the example below coloured blue)
The design would then look like this
And the output like this