Need a dynamic connector with three textboxes

[nanoo]

I need to create a connector with dynamic connector behavior, but
having three textboxes.
How can I do this? All of my attempts render undesirable positioning of
the textboxes when I change the position of the dynamic connector.

 

[Michel LAPLANE]

For a beginning Try this :

Create 3 different text "Begin" "Middle" "End".
Create a connector and look at his Visio Id with Right clik
Format=>Special=>Name context menu. "Dynamic connector.4" for example.

In Begin Text Shape type in PinX ShapeSheet Cell "GUARD(sheet.4!BeginX)"
In Begin Text Shape type in PinYShapeSheet Cell
"GUARD((sheet.4!BeginY)+Height)"

In Middle Text Shape type in PinX ShapeSheet Cell
"GUARD((sheet.4!BeginX+((sheet.4!Width)/2))"
In Middle Text Shape type in PinYShapeSheet Cell
"GUARD((sheet.4!BeginY+((sheet.4!Height)/2))"

In End Text Shape type in PinX ShapeSheet Cell "GUARD((sheet.4!EndX)+Width)"
In End Text Shape type in PinYShapeSheet Cell "GUARD(sheet.4!EndY)"

It give's not so bad results