Dative case in farsi
So be marks the Dative case. Does be express the target of the sentence?

dokhtar be mard goft (Subject Object Verb)
dokhtar goft be mard (Subject Verb Object)

be mard goft dokhtar (Object Verb Subject)
be mard dokhtar goft (Object Subject Verb)

goft be mard dokhtar (Verb Object Subject)
goft dokhtar be mard (Verb Subject Object)

Question

Dative case in farsi
So be marks the Dative case.  Does be express the target of the sentence?

dokhtar be mard goft (Subject Object Verb)
dokhtar goft be mard (Subject Verb Object)

be mard goft dokhtar (Object Verb Subject)
be mard dokhtar goft (Object Subject Verb)

goft be mard dokhtar (Verb Object Subject)
goft dokhtar be mard (Verb Subject Object)

Answer

You know, in Persian language we usually change the place of words together. In other words all sentences above can be correct, but some are better for conversation and some are better for poem!  
dokhtar be mard goft (Subject Object Verb) is better than others for conversation.

Answer

Er... what?

The "target" of a sentence is never in dative case. Are you talking about accusative?

Answer

It virtually works the same way as "to" does in English.

Answer

1. Dokhtar be mard goft= the girl told to man
Be mard gofteh shod= the man was told 
2. Mard be dokhtar goft= the man told to girl
Be dokhtar gofteh shod= the girl was told
You know
In Persian ,we don't have different between male and female in their Pronouns(
Gender pronouns )