Get part string length

[urdiafa]

I pick a element textnote " abcdefgh " in revit , It can get string " abcdefgh " length using " BoundingBoxXYZ bbox = el . Get_BoundingBox (doc . ActiveView ) " but I want to get string " abcd " length in string " abcdefgh " , How could I to get  it? Any help will appreciate .

[Dale.Bartlett]

Get the substring and then:

public SizeF MeasureString(
	string text,
	Font font
)

Maybe??

Dale

[BobbyC.Jones]

Sounds like a good candidate for the TTT.

Modify the textnote to contain only the partial string, grab the length, then rollback the transaction.  I assume you'll need to regen the document between modding the text and getting the length.