Resolved!
In fact i forgot to set the database infomration (hg18) in the bam item. so Now I can see the display igv link :)

2012/7/3 Chebbi Mohamed Amine <chebbimamine@gmail.com>
Hi !
I'am trying to set IGV as a display application in Galaxy. So I have added in datatypes_conf.xml, under the bam datatype the display application for igv/bam (<display file="igv/bam.xml" />).  However the Links dose not appear in bam history items. I see only " display in IGB Local Web "
Could someone help me .
Thanks
Amine