expressions: from string to number

[domy04]

Good morning.
I would like to report the diameter of a hole/extrusion in a sketch text, the text provides the connection to strings but not to expressions formatted with number.
example:

attribute property: hole size = 8.5 (number) will be called "p0"
I create an extruded disk and insert the hole with connection to "p0" so far all normal
now I want to insert a text on the part, with insert - curve- text and the text must give me automatic 8.5
Thank you.

 

[The_Matrix]

Good morning.
I would like to report the diameter of a hole/extrusion in a sketch text, the text provides the connection to strings but not to expressions formatted with number.
example:

attribute property: hole size = 8.5 (number) will be called "p0"
I create an extruded disk and insert the hole with connection to "p0" so far all normal
now I want to insert a text on the part, with insert - curve- text and the text must give me automatic 8.5
Thank you.

I did so it works:
- created sketch
- circle of 30
- set 30 as df
... if you go out and go into expressions you will see:
name: df (sketch_001:sketch(2) diameter dimension on arc1)
formula: 30
value: 30
units: mm
type: number
- then go to the table and enter a text: insert - annotation - notes
- inside the tab "text input" you see the tab "symbols"... below you go to category "relationship" and you take the "insert expression".
done.

 

[domy04]

Thank you very much, I was going crazy