Sum the value of text boxes in another text box

[leenlart]

Hello,

I have a couple of text boxes (TX1, TX2, TX3) that work like a gauges.  They give a total for a specific sub-set each. 

I would like to make a new text box (TX4) that will show the sum of these other text boxes. 

How do I reference the value of my text boxes?  Or do I have to manually create the sum of the three expressions used to create my text boxes.  (As there are actually a few more than 3, my expression will be very long if I have to manually create it!)

Thanks for your help!

[marcus_sommer]

You couldn't reference to the results of any other object - you will need to combine the results from each textbox within a new expression, maybe something like: rangesum(ExprTX1, ExprTX2, ExprTX3)

- Marcus

[sunny_talwar]

May be save the expressions in variable and use the variables in your text boxes so that you don't have to repeat the expressions